annotate aclocal.m4 @ 2929:92ef390fc71f

[xemacs-hg @ 2005-09-14 04:07:08 by stephent] update for cucumber
author stephent
date Wed, 14 Sep 2005 04:07:08 +0000
parents 3580ae2ce979
children b145b32294ff
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
1 dnl aclocal.m4 --- Dynamically linked library support for XEmacs
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
2 dnl Copyright (C) 1998, 1999 J. Kean Johnston.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
3 dnl Author: J. Kean Johnston <jkj@sco.com>, based on work in libtool.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
4 dnl This file is part of XEmacs.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
5
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
6 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
7 dnl There are several things we care about here. First, we need to find
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
8 dnl out how we create an executable that has its symbols exported, so
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
9 dnl that dynamically loaded modules have access to the internal XEmacs
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
10 dnl symbols. This is stored in ``ld_dynamic_link_flags'' and is used
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
11 dnl in the main Makefile.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
12 dnl Next, we need to know how we compile actual shared libraries, and
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
13 dnl the objects in them. For these purposes, we need to determine the
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
14 dnl C compiler flags used to produce shared objects (``dll_cflags''),
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
15 dnl what linker to use to create the final shared object that will be
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
16 dnl loaded (``dll_ld'') and the flags to pass to that linker
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
17 dnl (``dll_ldflags''). This information is used by ellcc to build up
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
18 dnl the command line when compiling modules. We build up two other commands
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
19 dnl for extremely weird systems where special things need to be done.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
20 dnl The first is ``dll_ldo'', which is the flag used to specify the output
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
21 dnl file name, and the second is ``dll_post'' which is inserted after the
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
22 dnl list of objects.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
23 dnl After all of this, we should be able to:
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
24 dnl $(CC) $(CFLAGS) $(dll_cflags) -c module.c
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
25 dnl to produce a single shared object
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
26 dnl And then:
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
27 dnl $(dll_ld) $(dll_ldflags) $(dll_ldo) module.ell module.o $(dll_post)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
28 dnl to create the loadable shared library.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
29 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
30 dnl NOTE: In the code below, where I have modified things to work with
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
31 dnl XEmacs, we use $canonical instead of libtool's $host, and we use
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
32 dnl $internal_configuration instead of $host_alias. To make typing
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
33 dnl shorter we assign these to $xehost and $xealias
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
34
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
35 AC_DEFUN(XE_SHLIB_STUFF,[
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
36 dll_ld=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
37 dll_ldflags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
38 dll_cflags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
39 dll_post=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
40 dll_ldo="-o"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
41 ld_dynamic_link_flags=
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
42 xehost=$ac_cv_build
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
43 xealias=$ac_cv_build_alias
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
44
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
45 AC_CHECKING([how to build dynamic libraries for ${xehost}])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
46 # Transform *-*-linux* to *-*-linux-gnu*, to support old configure scripts.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
47 case "$xehost" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
48 *-*-linux-gnu*) ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
49 *-*-linux*) xehost=`echo $xehost | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
50 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
51
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
52 xehost_cpu=`echo $xehost | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\1/'`
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
53 xehost_vendor=`echo $xehost | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\2/'`
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
54 xehost_os=`echo $xehost | sed 's/^\([[^-]]*\)-\([[^-]]*\)-\(.*\)$/\3/'`
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
55
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
56 case "$xehost_os" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
57 aix3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
58 # AIX sometimes has problems with the GCC collect2 program. For some
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
59 # reason, if we set the COLLECT_NAMES environment variable, the problems
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
60 # vanish in a puff of smoke.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
61 if test "${COLLECT_NAMES+set}" != set; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
62 COLLECT_NAMES=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
63 export COLLECT_NAMES
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
64 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
65 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
66 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
67
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
68 # Now see if the compiler is really GCC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
69 if test "$GCC" = "yes"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
70 XEGCC=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
71 else
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
72 AC_MSG_CHECKING([whether we are using GNU C])
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
73 AC_EGREP_CPP(yes,[
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
74 #ifdef __GNUC__
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
75 yes;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
76 #endif
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
77 ],XEGCC=yes, XEGCC=no)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
78 AC_MSG_RESULT([${XEGCC}])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
79 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
80
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
81 AC_MSG_CHECKING([how to produce PIC code])
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
82 wl=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
83
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
84 can_build_shared=yes
1756
b5db5c9230b1 [xemacs-hg @ 2003-10-16 19:44:34 by james]
james
parents: 1678
diff changeset
85 if test "$XEGCC" = yes -o "$__ICC" = yes; then
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
86 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
87
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
88 case "$xehost_os" in
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
89 aix[[3-9]]* | irix[[5-9]]* | osf[[3-9]])
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
90 # PIC is the default for these OSes.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
91 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
92
1678
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
93 *darwin*) dll_cflags='-dynamic'
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
94 ;;
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
95
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
96 os2*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
97 # We can build DLLs from non-PIC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
98 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
99 amigaos*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
100 # FIXME: we need at least 68020 code to build shared libraries, but
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
101 # adding the `-m68020' flag to GCC prevents building anything better,
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
102 # like `-m68040'.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
103 dll_cflags='-m68020 -resident32 -malways-restore-a4'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
104 ;;
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
105 *cygwin* | *mingw* )
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
106 # PIC is the default
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
107 ;;
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
108 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
109 dll_cflags='-fPIC'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
110 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
111 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
112 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
113 # PORTME Check for PIC flags for the system compiler.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
114 case "$xehost_os" in
430
a5df635868b2 Import from CVS: tag r21-2-23
cvs
parents: 426
diff changeset
115 hpux9* | hpux1[[0-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
116 # Is there a better link_static_flag that works with the bundled CC?
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
117 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
118 dll_cflags='+Z'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
119 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
120
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
121 irix[[5-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
122 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
123 # PIC (with -KPIC) is the default.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
124 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
125
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
126 os2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
127 # We can build DLLs from non-PIC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
128 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
129
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
130 osf[[3-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
131 # All OSF/1 code is PIC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
132 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
133 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
134
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
135 aix[[3-9]]*)
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
136 # All AIX code is PIC.
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
137 wl='-Wl,'
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
138 ;;
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
139
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
140 sco3.2v5*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
141 dll_cflags='-belf -Kpic'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
142 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
143 ;;
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
144
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
145 unixware*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
146 dll_cflags="-KPIC"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
147 wl="-Wl,"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
148 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
149
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
150 sysv4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
151 dll_cflags="-KPIC"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
152 wl="-Wl,"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
153 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
154
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
155 sysv5*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
156 dll_cflags="-KPIC"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
157 wl="-Wl,"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
158 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
159
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
160 solaris2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
161 dll_cflags='-KPIC'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
162 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
163 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
164
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
165 sunos4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
166 dll_cflags='-PIC'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
167 wl='-Qoption ld '
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
168 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
169
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
170 uts4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
171 dll_cflags='-pic'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
172 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
173
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
174 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
175 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
176 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
177 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
178 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
179
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
180 if test -n "$dll_cflags"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
181 AC_MSG_RESULT([${dll_cflags}])
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
182
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
183 # Check to make sure the dll_cflags actually works.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
184 AC_MSG_CHECKING([if PIC flag ${dll_cflags} really works])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
185 save_CFLAGS="$CFLAGS"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
186 CFLAGS="$CFLAGS $dll_cflags -DPIC"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
187 AC_TRY_COMPILE(,[int x=0;],[
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
188 # On HP-UX, the stripped-down bundled CC doesn't accept +Z, but also
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
189 # reports no error. So, we need to grep stderr for (Bundled).
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
190 if grep '(Bundled)' config.log >/dev/null; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
191 AC_MSG_RESULT(no)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
192 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
193 dll_cflags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
194 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
195 AC_MSG_RESULT(yes)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
196 fi], [AC_MSG_RESULT(no)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
197 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
198 dll_cflags=])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
199 CFLAGS="$save_CFLAGS"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
200 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
201 AC_MSG_RESULT(none)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
202 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
203
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
204 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
205 dnl Now comes the LD trickery. We do things differently to libtool here.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
206 dnl I believe that libtool is incorrect in trying to drive the linker
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
207 dnl directly. This can cause considerable problems if the module you are
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
208 dnl compiling has C++ or other static initializers. If we use ld directly,
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
209 dnl we don't end up with the crt stuff being linked in, and we don't end up
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
210 dnl with any .init or .fini sections (or the moral equivalent thereof).
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
211 dnl gcc takes great care to do this properly when invoked in -shared
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
212 dnl mode, and we really do want this behavior. Perhaps the libtool folks
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
213 dnl are not aware that any SVR4 based dynamic loader will automatically
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
214 dnl execute code in the .init section before dlopen() returns. This is
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
215 dnl vital, as the module may have been compiled to rely on that behavior.
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
216 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
217 dnl So, having said all of that, we diverge from libtool significantly
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
218 dnl here. We want to try and use the C compiler as much as possible. Only
2079
9402c85dcf6f [xemacs-hg @ 2004-05-14 15:35:28 by james]
james
parents: 1756
diff changeset
219 dnl if the C compiler itself cannot create shared libraries do we try to
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
220 dnl find the linker.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
221 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
222 dnl The other advantage to my scheme is that it removes the dependancy
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
223 dnl on a given compiler version remaining static with relation to the
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
224 dnl version of XEmacs. With the libtool way, it picks up the linker that
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
225 dnl gcc uses, which can be the internal collect2 that comes with gcc.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
226 dnl If the user ever changes their compiler version, the paths will no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
227 dnl longer be correct, and ellcc will break. This is clearly unacceptable.
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
228 dnl By using the compiler driver on the path, we don't have this problem.
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
229 dnl If that is not clear, consider that gcc -print-prog-name=ld can
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
230 dnl produce something along the lines of:
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
231 dnl /usr/local/lib/gcc-lib/OS-NAME/GCC-VERSION/ld
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
232 dnl If you ever change GCC versions, then that path no longer exists.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
233 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
234 dnl So, we change the check order here. We first check to see if we are
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
235 dnl using GCC, and if so, we see if -shared works. If it does, great.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
236 dnl If we are not using gcc, but the system C compiler can produce
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
237 dnl shared objects, we try that. Only if all of that fails do we revert
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
238 dnl back to the libtool ld trickery.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
239 dnl
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
240 dnl We don't do ANY of this if we can't produce shared objects.
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
241 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
242 if test "$can_build_shared" = "yes"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
243 cc_produces_so=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
244 xldf=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
245 xcldf=
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
246 AC_MSG_CHECKING([if C compiler can produce shared libraries])
1756
b5db5c9230b1 [xemacs-hg @ 2003-10-16 19:44:34 by james]
james
parents: 1678
diff changeset
247 if test "$XEGCC" = yes -o "$__ICC" = yes; then
1678
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
248 case "$xehost_os" in
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
249 *darwin*)
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
250 xcldf='-bundle'
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
251 xldf='-bundle -bundle_loader ../../src/xemacs'
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
252 ;;
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
253 *)
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
254 xcldf="-shared"
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
255 xldf="-shared"
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
256 ;;
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
257 esac
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
258 else # Not using GCC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
259 case "$xehost_os" in
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
260 aix[[3-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
261 xldf="-bE:ELLSONAME.exp -H512 -T512 -bhalt:4 -bM:SRE -bnoentry -lc"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
262 xcldf="${wl}-bE:ELLSONAME.exp ${wl}-H512 ${wl}-T512 ${wl}-bhalt:4 ${wl}-bM:SRE ${wl}-bnoentry ${wl}-lc"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
263 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
264
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
265 freebsd2* | netbsd* | openbsd*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
266 xldf="-Bshareable"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
267 xcldf="${wl}-Bshareable"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
268 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
269
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
270 freebsd3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
271 xcldf="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
272 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
273
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
274 hpux*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
275 xldf="-b +s"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
276 xcldf="${wl}-b ${wl}+s"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
277 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
278
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
279 irix[[5-9]]* | osf[[3-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
280 xcldf="${wl}-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
281 xldf="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
282 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
283
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
284 sco3.2v5* | unixware* | sysv5* | sysv4* | solaris2* | solaris7* | uts4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
285 xcldf="-G"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
286 xldf="-G"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
287 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
288
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
289 sunos4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
290 xcldf="${wl}-assert ${wl}pure-text ${wl}-Bstatic"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
291 xldf="-assert pure-text -Bstatic"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
292 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
293 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
294 fi # End if if we are using gcc
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
295
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
296 if test -n "$xcldf"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
297 save_LDFLAGS=$LDFLAGS
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
298 save_LIBS=$LIBS
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
299 save_xe_libs=$xe_libs
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
300 LDFLAGS="$xcldf $LDFLAGS"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
301 LIBS=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
302 xe_libs=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
303 ac_link='${CC-cc} -o conftest $CFLAGS '"$xe_cppflags $xe_ldflags"' conftest.$ac_ext '"$xe_libs"' 1>&AC_FD_CC'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
304 AC_TRY_LINK(,[int x=0;],cc_produces_so=yes,cc_produces_so=no)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
305 LDFLAGS=$save_LDFLAGS
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
306 LIBS=$save_LIBS
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
307 xe_libs=$save_xe_libs
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
308 ac_link='${CC-cc} -o conftest $CFLAGS '"$xe_cppflags $xe_ldflags"' conftest.$ac_ext '"$xe_libs"' 1>&AC_FD_CC'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
309 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
310 cc_produces_so=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
311 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
312 AC_MSG_RESULT([${cc_produces_so}])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
313
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
314 LTLD=$LD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
315 if test -z "$LTLD"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
316 ac_prog=ld
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
317 if test "$XEGCC" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
318 # Check if gcc -print-prog-name=ld gives a path.
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
319 AC_MSG_CHECKING([for ld used by GCC])
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
320 ac_prog=`($CC -print-prog-name=ld) 2>&5`
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
321 case "$ac_prog" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
322 # Accept absolute paths.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
323 /*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
324 if test -z "$LTLD"; then
724
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
325 # case "$ac_prog" in
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
326 # *gcc-lib*) LTLD="$CC"
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
327 # ;;
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
328 # *)
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
329 LTLD="$ac_prog"
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
330 # ;;
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
331 # esac
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
332 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
333 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
334 "")
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
335 # If it fails, then pretend we aren't using GCC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
336 ac_prog=ld
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
337 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
338 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
339 # If it is relative, then search for the first ld in PATH.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
340 with_gnu_ld=unknown
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
341 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
342 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
343 else
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
344 AC_MSG_CHECKING([for GNU ld])
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
345 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
346
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
347 if test -z "$LTLD"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
348 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
349 for ac_dir in $PATH; do
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
350 test -z "$ac_dir" && ac_dir=.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
351 if test -f "$ac_dir/$ac_prog"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
352 LTLD="$ac_dir/$ac_prog"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
353 # Check to see if the program is GNU ld. I'd rather use --version,
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
354 # but apparently some GNU ld's only accept -v.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
355 # Break only if it was the GNU/non-GNU ld that we prefer.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
356 if "$LTLD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
357 xe_gnu_ld=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
358 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
359 xe_gnu_ld=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
360 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
361 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
362 done
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
363 IFS="$ac_save_ifs"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
364 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
365
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
366 if test -n "$LTLD"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
367 AC_MSG_RESULT([${LTLD}])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
368 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
369 AC_MSG_RESULT(no)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
370 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
371
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
372 if test -z "$LTLD" -a "$cc_produces_so" = no; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
373 AC_MSG_ERROR(no acceptable linker found in \$PATH)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
374 exit 1
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
375 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
376 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
377
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
378 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
379 dnl Order of the tests changed somewhat to prevent repetition
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
380 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
381 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
382
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
383 # Check to see if it really is or isn't GNU ld.
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
384 AC_MSG_CHECKING([if the linker is GNU ld])
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
385 # I'd rather use --version here, but apparently some GNU ld's only accept -v.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
386 if $LTLD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
387 xe_gnu_ld=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
388 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
389 xe_gnu_ld=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
390 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
391 AC_MSG_RESULT([${xe_gnu_ld}])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
392
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
393 case "$xehost_os" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
394 amigaos* | sunos4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
395 # On these operating systems, we should treat GNU ld like the system ld.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
396 gnu_ld_acts_native=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
397 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
398 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
399 gnu_ld_acts_native=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
400 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
401 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
402
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
403 if test "$cc_produces_so" = "yes"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
404 dll_ld=$CC
1678
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
405 case "$xehost_os" in
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
406 *darwin*)
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
407 dnl On Darwin, we test with xcldf, but we use xldf
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
408 dll_ldflags=$xldf
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
409 ;;
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
410 *)
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
411 dll_ldflags=$xcldf
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
412 ;;
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
413 esac
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
414 can_build_shared=yes
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
415 ld_shlibs=yes
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
416 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
417 # OK - only NOW do we futz about with ld.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
418 # See if the linker supports building shared libraries.
2651
3580ae2ce979 [xemacs-hg @ 2005-03-11 11:18:44 by malcolmp]
malcolmp
parents: 2079
diff changeset
419 AC_MSG_CHECKING([whether the linker supports shared libraries])
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
420 dll_ld=$CC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
421 dll_ldflags=$LDFLAGS
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
422 ld_shlibs=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
423 can_build_shared=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
424 if test "$xe_gnu_ld" = yes && test "$gnu_ld_acts_native" != yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
425 # See if GNU ld supports shared libraries.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
426 if $LTLD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
427 dll_ld=$CC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
428 dll_ldflags="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
429 ld_shlibs=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
430 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
431 ld_shlibs=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
432 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
433 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
434 # PORTME fill in a description of your system's linker (not GNU ld)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
435 case "$xehost_os" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
436 aix3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
437 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
438 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
439 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
440
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
441 aix[[4-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
442 dll_ldflags=$xcldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
443 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
444
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
445 # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
446 # support. Future versions do this automatically, but an explicit c++rt0.o
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
447 # doesn't break anything, and helps significantly (at the cost of a little
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
448 # extra space).
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
449 freebsd2.2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
450 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
451 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
452 dll_post="/usr/lib/c++rt0.o"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
453 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
454
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
455 # Unfortunately, older versions of FreeBSD 2 don't have this feature.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
456 freebsd2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
457 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
458 dll_ldflags="-Bshareable"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
459 ;;
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
460
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
461 # FreeBSD 3, at last, uses gcc -shared to do shared libraries.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
462 freebsd3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
463 dll_ldflags="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
464 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
465
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
466 hpux*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
467 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
468 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
469 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
470
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
471 irix[[5-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
472 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
473 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
474 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
475
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
476 netbsd*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
477 # Tested with NetBSD 1.2 ld
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
478 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
479 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
480 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
481
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
482 openbsd*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
483 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
484 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
485 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
486
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
487 osf3* | osf4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
488 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
489 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
490 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
491
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
492 # For both SCO and Solaris we MAY want to have LDFLAGS include -z text
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
493 sco3.2v5* | unixware* | sysv5* | sysv4* | solaris2* | solaris7*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
494 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
495 case "$dll_ld" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
496 *gcc*) dll_ldflags="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
497 dll_ld=$CC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
498 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
499 *) dll_ldflags="-G"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
500 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
501 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
502 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
503
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
504 sunos4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
505 if test "$XEGCC" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
506 dll_ld=$CC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
507 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
508 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
509 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
510 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
511 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
512
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
513 uts4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
514 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
515 dll_ldflags="-G"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
516 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
517
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
518 bsdi*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
519 dll_ldflags="-r"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
520 dll_ld="shlicc2"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
521 ;;
1470
1364f9716d7b [xemacs-hg @ 2003-05-10 02:57:05 by youngs]
youngs
parents: 1452
diff changeset
522
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
523 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
524 ld_shlibs=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
525 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
526 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
527 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
528 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
529 AC_MSG_RESULT([${ld_shlibs}])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
530 if test "$ld_shlibs" = "no"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
531 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
532 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
533 fi # End of if cc_produces_so = no
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
534
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
535 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
536 dnl Last thing, check how to get a linked executable to have its symbols
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
537 dnl exported, so that the modules have access to them.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
538 dnl
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
539 dnl XEmacs FIXME - we need to set ld_dynamic_link_flags properly for
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
540 dnl most of these systems, which was missing from libtool. I know they
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
541 dnl all have a way of doing this, but someone needs to look at this
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
542 dnl for each OS and make sure it is correct. Remember that the arguments
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
543 dnl are passed when temacs is linked, this is NOT for modules. The sole
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
544 dnl purpose of the argument is to get the internal XEmacs symbols exposed
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
545 dnl for modules to use. This means that the COMPILER (and NOT the linker)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
546 dnl is most often used to create temacs, so arguments to the linker will
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
547 dnl usually need to be prefix with ${wl} or some other such thing.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
548 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
549
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
550 if test "$xe_gnu_ld" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
551 if test "$ld_shlibs" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
552 ld_dynamic_link_flags="${wl}-export-dynamic"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
553 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
554 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
555
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
556 if test -z "$ld_dynamic_link_flags"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
557 case "$xehost_os" in
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
558 aix[[3-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
559 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
560 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
561
1678
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
562 *darwin*)
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
563 ld_dynamic_link_flags=
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
564 ;;
2422c1cd1afd [xemacs-hg @ 2003-09-12 02:02:06 by james]
james
parents: 1633
diff changeset
565
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
566 freebsd2.2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
567 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
568 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
569
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
570 freebsd2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
571 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
572 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
573
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
574 freebsd3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
575 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
576 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
577
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
578 hpux*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
579 ld_dynamic_link_flags="${wl}-E"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
580 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
581
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
582 irix[[5-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
583 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
584 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
585
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
586 netbsd*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
587 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
588 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
589
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
590 openbsd*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
591 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
592 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
593
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
594 osf3* | osf4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
595 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
596 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
597
398
74fd4e045ea6 Import from CVS: tag r21-2-29
cvs
parents: 388
diff changeset
598 solaris2* | solaris7*)
426
43177a4f3daf Import from CVS: tag r21-2-21
cvs
parents: 412
diff changeset
599 ld_dynamic_link_flags=
398
74fd4e045ea6 Import from CVS: tag r21-2-29
cvs
parents: 388
diff changeset
600 ;;
74fd4e045ea6 Import from CVS: tag r21-2-29
cvs
parents: 388
diff changeset
601
74fd4e045ea6 Import from CVS: tag r21-2-29
cvs
parents: 388
diff changeset
602 sco3.2v5* | unixware* | sysv5* | sysv4*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
603 ld_dynamic_link_flags="${wl}-Bexport"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
604 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
605
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
606 sunos4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
607 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
608 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
609
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
610 uts4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
611 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
612 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
613
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
614 bsdi*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
615 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
616 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
617
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
618 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
619 fi # End of if -z ld_dynamic_link_flags
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
620 fi # End of if test "$can_build_shared" = "yes"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
621
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
622 AC_SUBST(dll_ld)
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
623 AC_SUBST(dll_cflags)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
624 AC_SUBST(dll_ldflags)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
625 AC_SUBST(dll_post)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
626 AC_SUBST(dll_ldo)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
627 AC_SUBST(ld_dynamic_link_flags)
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
628 ])dnl
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
629