annotate aclocal.m4 @ 1296:87084e8445a7

[xemacs-hg @ 2003-02-14 09:50:15 by ben] syntax-table fixes 1. the updating of mirror tables every time a syntax table was modified was taking up huge amounts of time so i added a dirty flag and made the updating "just-in-time". 2. no-longer-used char-table-entries were not getting "freed", generating tons of garbage. 3. syntax_match() was being incorrectly called on mirror tables in the cache, not the original syntax table. buffer.c, syntax.c: Move syntax table description from buffer.c to syntax.c. chartab.c, chartab.h: Free extra char table entries to avoid excessive garbage. Add flags for dirty and mirror_table_p to char tables. Add a back pointer from mirror tables to the original syntax table. When modifying a syntax table, don't update the mirror table right away, just mark as dirty. Add various asserts to make sure we are dealing with the right type of table (mirror or non-mirror). font-lock.c, syntax.c, syntax.h: Add entry to syntax caches for the non-mirror table. Set it appropriately when initializing the syntax table. Use it, not the mirror table, for calls to syntax_match(). Don't create a bogus float each time, just once at startup. Add some asserts, as in chartab.c. syntax.h: When retrieving the syntax code, check the dirty flag and update the mirror tables as appropriate. Add some asserts, as above.
author ben
date Fri, 14 Feb 2003 09:50:17 +0000
parents 184461bc8de4
children dd63b61df78c
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 $xealias
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
34
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
35 AC_DEFUN(XE_SHLIB_STUFF,[
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
36 dll_ld=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
37 dll_ldflags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
38 dll_cflags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
39 dll_post=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
40 dll_ldo="-o"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
41 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
42 xehost=$canonical
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
43 xealias=$internal_configuration
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
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
52 changequote(<<, >>)dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
53 xehost_cpu=`echo $xehost | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
54 xehost_vendor=`echo $xehost | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
55 xehost_os=`echo $xehost | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
56 changequote([, ])dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
57
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
58 case "$xehost_os" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
59 aix3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
60 # AIX sometimes has problems with the GCC collect2 program. For some
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
61 # reason, if we set the COLLECT_NAMES environment variable, the problems
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
62 # vanish in a puff of smoke.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
63 if test "${COLLECT_NAMES+set}" != set; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
64 COLLECT_NAMES=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
65 export COLLECT_NAMES
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
66 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
67 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
68 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
69
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
70 # Now see if the compiler is really GCC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
71 if test "$GCC" = "yes"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
72 XEGCC=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
73 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
74 AC_MSG_CHECKING(checking whether we are using GNU C)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
75 AC_EGREP_CPP(yes,[
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
76 #ifdef __GNUC__
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
77 yes;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
78 #endif
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
79 ],XEGCC=yes, XEGCC=no)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
80 AC_MSG_RESULT([${XEGCC}])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
81 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
82
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
83 AC_MSG_CHECKING(how to produce PIC code)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
84 wl=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
85
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
86 can_build_shared=yes
1111
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
87 cygwin_warn=
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
88 if test "$XEGCC" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
89 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
90
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
91 case "$xehost_os" in
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
92 aix[[3-9]]* | irix[[5-9]]* | osf[[3-9]])
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
93 # PIC is the default for these OSes.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
94 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
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
1111
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
107 cygwin_warn=yes
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
108 # #### Need some trickery involving import libraries that we don't
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
109 # currently support.
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
110 can_build_shared=no
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
111 ;;
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
112 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
113 dll_cflags='-fPIC'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
114 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
115 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
116 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
117 # PORTME Check for PIC flags for the system compiler.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
118 case "$xehost_os" in
430
a5df635868b2 Import from CVS: tag r21-2-23
cvs
parents: 426
diff changeset
119 hpux9* | hpux1[[0-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
120 # 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
121 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
122 dll_cflags='+Z'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
123 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
124
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
125 irix[[5-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
126 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
127 # PIC (with -KPIC) is the default.
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
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
130 os2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
131 # We can build DLLs from non-PIC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
132 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
133
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
134 osf[[3-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
135 # All OSF/1 code is PIC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
136 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
137 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
138
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
139 aix[[3-9]]*)
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
140 # All AIX code is PIC.
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
141 wl='-Wl,'
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
142 ;;
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
143
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
144 sco3.2v5*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
145 dll_cflags='-belf -Kpic'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
146 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
147 ;;
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
148
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
149 unixware*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
150 dll_cflags="-KPIC"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
151 wl="-Wl,"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
152 ;;
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 sysv4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
155 dll_cflags="-KPIC"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
156 wl="-Wl,"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
157 ;;
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 sysv5*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
160 dll_cflags="-KPIC"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
161 wl="-Wl,"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
162 ;;
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 solaris2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
165 dll_cflags='-KPIC'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
166 wl='-Wl,'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
167 ;;
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 sunos4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
170 dll_cflags='-PIC'
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
171 wl='-Qoption ld '
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 uts4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
175 dll_cflags='-pic'
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
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
178 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
179 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
180 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
181 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
182 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
183
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
184 if test -n "$dll_cflags"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
185 AC_MSG_RESULT([${dll_cflags}])
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
186
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
187 # Check to make sure the dll_cflags actually works.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
188 AC_MSG_CHECKING([if PIC flag ${dll_cflags} really works])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
189 save_CFLAGS="$CFLAGS"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
190 CFLAGS="$CFLAGS $dll_cflags -DPIC"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
191 AC_TRY_COMPILE(,[int x=0;],[
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
192 # On HP-UX, the stripped-down bundled CC doesn't accept +Z, but also
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
193 # reports no error. So, we need to grep stderr for (Bundled).
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
194 if grep '(Bundled)' config.log >/dev/null; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
195 AC_MSG_RESULT(no)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
196 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
197 dll_cflags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
198 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
199 AC_MSG_RESULT(yes)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
200 fi], [AC_MSG_RESULT(no)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
201 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
202 dll_cflags=])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
203 CFLAGS="$save_CFLAGS"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
204 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
205 AC_MSG_RESULT(none)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
206 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
207
1111
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
208 if test -n "$cygwin_warn"; then
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
209 AC_MSG_WARN([Cannot currently build modules under Cygwin.])
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
210 fi
184461bc8de4 [xemacs-hg @ 2002-11-18 06:52:23 by ben]
ben
parents: 724
diff changeset
211
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
212 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
213 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
214 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
215 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
216 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
217 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
218 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
219 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
220 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
221 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
222 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
223 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
224 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
225 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
226 dnl here. We want to try and use the C compiler as much as possible. Only
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
227 dnl if the C compiler itself cannot create shared libraries to we try to
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
228 dnl find the linker.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
229 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
230 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
231 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
232 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
233 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
234 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
235 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
236 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
237 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
238 dnl produce something along the lines of:
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
239 dnl /usr/local/lib/gcc-lib/OS-NAME/GCC-VERSION/ld
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
240 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
241 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
242 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
243 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
244 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
245 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
246 dnl back to the libtool ld trickery.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
247 dnl
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
248 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
249 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
250 if test "$can_build_shared" = "yes"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
251 cc_produces_so=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
252 xldf=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
253 xcldf=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
254 AC_MSG_CHECKING(if C compiler can produce shared libraries)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
255 if test "$XEGCC" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
256 xcldf="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
257 xldf="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
258 else # Not using GCC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
259 case "$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 "$XEGCC" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
318 # Check if gcc -print-prog-name=ld gives a path.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
319 AC_MSG_CHECKING(for ld used by GCC)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
320 ac_prog=`($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="$ac_prog"
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
330 # ;;
76d5a3dd827a [xemacs-hg @ 2002-01-05 07:33:11 by stephent]
stephent
parents: 460
diff changeset
331 # esac
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
332 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
333 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
334 "")
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
335 # If it fails, then pretend we aren't using GCC.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
336 ac_prog=ld
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
337 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
338 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
339 # If it is relative, then search for the first ld in PATH.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
340 with_gnu_ld=unknown
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
341 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
342 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
343 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
344 AC_MSG_CHECKING(for GNU ld)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
345 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
346
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
347 if test -z "$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.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
384 AC_MSG_CHECKING(if the linker is GNU ld)
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=$CC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
405 dll_ldflags=$xcldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
406 can_build_shared=yes
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
407 ld_shlibs=yes
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
408 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
409 # OK - only NOW do we futz about with ld.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
410 # See if the linker supports building shared libraries.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
411 AC_MSG_CHECKING(whether the linker supports shared libraries)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
412 dll_ld=$CC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
413 dll_ldflags=$LDFLAGS
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
414 ld_shlibs=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
415 can_build_shared=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
416 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
417 # See if GNU ld supports shared libraries.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
418 if $LTLD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
419 dll_ld=$CC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
420 dll_ldflags="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
421 ld_shlibs=yes
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
422 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
423 ld_shlibs=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
424 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
425 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
426 # 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
427 case "$xehost_os" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
428 aix3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
429 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
430 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
431 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
432
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
433 aix[[4-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
434 dll_ldflags=$xcldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
435 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
436
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
437 # 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
438 # 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
439 # 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
440 # extra space).
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
441 freebsd2.2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
442 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
443 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
444 dll_post="/usr/lib/c++rt0.o"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
445 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
446
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
447 # Unfortunately, older versions of FreeBSD 2 don't have this feature.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
448 freebsd2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
449 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
450 dll_ldflags="-Bshareable"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
451 ;;
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
452
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
453 # FreeBSD 3, at last, uses gcc -shared to do shared libraries.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
454 freebsd3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
455 dll_ldflags="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
456 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
457
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
458 hpux*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
459 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
460 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
461 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
462
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
463 irix[[5-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
464 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
465 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
466 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
467
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
468 netbsd*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
469 # Tested with NetBSD 1.2 ld
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
470 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
471 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
472 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
473
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
474 openbsd*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
475 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
476 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
477 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
478
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
479 osf3* | osf4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
480 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
481 dll_ldflags=$xldf
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
482 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
483
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
484 # For both SCO and Solaris we MAY want to have LDFLAGS include -z text
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
485 sco3.2v5* | unixware* | sysv5* | sysv4* | solaris2* | solaris7*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
486 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
487 case "$dll_ld" in
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
488 *gcc*) dll_ldflags="-shared"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
489 dll_ld=$CC
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 *) dll_ldflags="-G"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
492 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
493 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
494 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
495
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
496 sunos4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
497 if test "$XEGCC" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
498 dll_ld=$CC
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
499 else
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
500 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
501 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
502 dll_ldflags=$xldf
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
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
505 uts4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
506 dll_ld=$LTLD
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
507 dll_ldflags="-G"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
508 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
509
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
510 bsdi*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
511 dll_ldflags="-r"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
512 dll_ld="shlicc2"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
513 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
514
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
515 *)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
516 ld_shlibs=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
517 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
518 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
519 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
520 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
521 AC_MSG_RESULT([${ld_shlibs}])
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
522 if test "$ld_shlibs" = "no"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
523 can_build_shared=no
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
524 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
525 fi # End of if cc_produces_so = no
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
526
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
527 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
528 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
529 dnl exported, so that the modules have access to them.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
530 dnl
442
abe6d1db359e Import from CVS: tag r21-2-36
cvs
parents: 430
diff changeset
531 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
532 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
533 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
534 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
535 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
536 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
537 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
538 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
539 dnl usually need to be prefix with ${wl} or some other such thing.
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
540 dnl
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
541
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
542 if test "$xe_gnu_ld" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
543 if test "$ld_shlibs" = yes; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
544 ld_dynamic_link_flags="${wl}-export-dynamic"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
545 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
546 fi
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
547
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
548 if test -z "$ld_dynamic_link_flags"; then
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
549 case "$xehost_os" in
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
550 aix[[3-9]]*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
551 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
552 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
553
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
554 freebsd2.2*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
555 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
556 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
557
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
558 freebsd2*)
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
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
562 freebsd3*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
563 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
564 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
565
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
566 hpux*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
567 ld_dynamic_link_flags="${wl}-E"
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
460
223736d75acb Import from CVS: tag r21-2-45
cvs
parents: 442
diff changeset
570 irix[[5-9]]*)
388
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 netbsd*)
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 openbsd*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
579 ld_dynamic_link_flags=
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
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
582 osf3* | osf4*)
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
398
74fd4e045ea6 Import from CVS: tag r21-2-29
cvs
parents: 388
diff changeset
586 solaris2* | solaris7*)
426
43177a4f3daf Import from CVS: tag r21-2-21
cvs
parents: 412
diff changeset
587 ld_dynamic_link_flags=
398
74fd4e045ea6 Import from CVS: tag r21-2-29
cvs
parents: 388
diff changeset
588 ;;
74fd4e045ea6 Import from CVS: tag r21-2-29
cvs
parents: 388
diff changeset
589
74fd4e045ea6 Import from CVS: tag r21-2-29
cvs
parents: 388
diff changeset
590 sco3.2v5* | unixware* | sysv5* | sysv4*)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
591 ld_dynamic_link_flags="${wl}-Bexport"
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 sunos4*)
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
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
598 uts4*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
599 ld_dynamic_link_flags=
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
600 ;;
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
601
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
602 bsdi*)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
603 ld_dynamic_link_flags=
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 esac
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
607 fi # End of if -z ld_dynamic_link_flags
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
608 fi # End of if test "$can_build_shared" = "yes"
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
609
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
610 AC_SUBST(dll_ld)
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
611 AC_SUBST(dll_cflags)
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
612 AC_SUBST(dll_ldflags)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
613 AC_SUBST(dll_post)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
614 AC_SUBST(dll_ldo)
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
615 AC_SUBST(ld_dynamic_link_flags)
265
8efd647ea9ca Import from CVS: tag r20-5b31
cvs
parents:
diff changeset
616 ])dnl
388
aabb7f5b1c81 Import from CVS: tag r21-2-9
cvs
parents: 265
diff changeset
617