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