source: branches/samba-3.5.x/lib/replace/libreplace_ld.m4

Last change on this file was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 5.7 KB
Line 
1#
2# This offers a nice overview how to build shared libraries on all platforms
3# http://www.fortran-2000.com/ArnaudRecipes/sharedlib.html
4#
5
6AC_DEFUN([AC_LIBREPLACE_STLD],
7[
8 AC_PATH_PROG(PROG_AR, ar)
9
10 STLD=${PROG_AR}
11
12 AC_SUBST(STLD)
13])
14
15AC_DEFUN([AC_LIBREPLACE_STLD_FLAGS],
16[
17 STLD_FLAGS="-rcs"
18 AC_SUBST(STLD_FLAGS)
19])
20
21AC_DEFUN([AC_LD_EXPORT_DYNAMIC],
22[
23saved_LDFLAGS="$LDFLAGS"
24if AC_TRY_COMMAND([${CC-cc} $CFLAGS -Wl,--version 2>&1 | grep "GNU ld" >/dev/null]); then
25 LD_EXPORT_DYNAMIC="-Wl,-export-dynamic"
26else
27 case "$host_os" in
28 hpux* )
29 LD_EXPORT_DYNAMIC="-Wl,-E"
30 ;;
31 *)
32 LD_EXPORT_DYNAMIC=""
33 ;;
34 esac
35fi
36AC_SUBST(LD_EXPORT_DYNAMIC)
37LDFLAGS="$saved_LDFLAGS"
38])
39
40AC_DEFUN([AC_LD_PICFLAG],
41[
42case "$host_os" in
43 *linux*|*gnu*)
44 PICFLAG="-fPIC"
45 ;;
46 *solaris*)
47 if test "${GCC}" = "yes"; then
48 PICFLAG="-fPIC"
49 else
50 PICFLAG="-KPIC"
51 fi
52 ;;
53 *sunos*)
54 PICFLAG="-KPIC" # Is this correct for SunOS
55 ;;
56 *netbsd* | *freebsd* | *dragonfly* )
57 PICFLAG="-fPIC -DPIC"
58 ;;
59 *openbsd*)
60 PICFLAG="-fPIC"
61 ;;
62 *irix*)
63 if test "${GCC}" = "yes"; then
64 PICFLAG="-fPIC"
65 else
66 PICFLAG="-KPIC"
67 fi
68 ;;
69 *aix*)
70 # as AIX code is always position independent...
71 PICFLAG="-O2"
72 ;;
73 *hpux*)
74 if test "${GCC}" = "yes"; then
75 PICFLAG="-fPIC"
76 elif test "$host_cpu" = "ia64"; then
77 PICFLAG="+z"
78 elif test $ac_cv_prog_cc_Ae = yes; then
79 PICFLAG="+z +ESnolit"
80 fi
81 ;;
82 *osf*)
83 PICFLAG="-fPIC"
84 ;;
85 *unixware*)
86 PICFLAG="-KPIC"
87 ;;
88 *darwin*)
89 PICFLAG="-fno-common"
90 ;;
91esac
92AC_SUBST(PICFLAG)
93])
94
95AC_DEFUN([AC_LIBREPLACE_LD_SHLIB_LINKER],
96[
97 LD_SHLIB_LINKER="${CC}"
98
99 case "$host_os" in
100 *irix*)
101 LD_SHLIB_LINKER="${PROG_LD}"
102 ;;
103 esac
104
105 AC_SUBST(LD_SHLIB_LINKER)
106])
107
108AC_DEFUN([AC_LIBREPLACE_LD_SHLIB_FLAGS],
109[
110 LD_SHLIB_FLAGS="-shared"
111
112 case "$host_os" in
113 *linux*|*gnu*)
114 LD_SHLIB_FLAGS="-shared -Wl,-Bsymbolic"
115 ;;
116 *solaris*)
117 LD_SHLIB_FLAGS="-G"
118 if test "${GCC}" = "no"; then
119 ## ${CFLAGS} added for building 64-bit shared
120 ## libs using Sun's Compiler
121 LD_SHLIB_FLAGS="-G \${CFLAGS}"
122 fi
123 ;;
124 *sunos*)
125 LD_SHLIB_FLAGS="-G"
126 ;;
127 *irix*)
128 LD_SHLIB_FLAGS="-shared"
129 ;;
130 *aix*)
131 LD_SHLIB_FLAGS="-Wl,-G,-bexpall,-bbigtoc"
132 ;;
133 *hpux*)
134 if test "${GCC}" = "yes"; then
135 LD_SHLIB_FLAGS="-shared"
136 else
137 LD_SHLIB_FLAGS="-b"
138 fi
139 ;;
140 *osf*)
141 LD_SHLIB_FLAGS="-shared"
142 ;;
143 *darwin*)
144 LD_SHLIB_FLAGS="-dynamiclib -Wl,-search_paths_first"
145 ;;
146 esac
147
148 AC_SUBST(LD_SHLIB_FLAGS)
149])
150
151AC_DEFUN([AC_LIBREPLACE_LD_SHLIB_DISALLOW_UNDEF_FLAG],
152[
153 LD_SHLIB_DISALLOW_UNDEF_FLAG=""
154
155 #
156 # TODO: enforce error not only warnings
157 #
158 # NOTE: -Wl,--no-allow-shlib-undefined isn't what we want...
159 # as it bails out on broken system libraries
160 #
161 case "$host_os" in
162 *osf*)
163 LD_SHLIB_DISALLOW_UNDEF_FLAG="-warning_unresolved"
164 ;;
165 *darwin*)
166 LD_SHLIB_DISALLOW_UNDEF_FLAG="-undefined error"
167 ;;
168 esac
169
170 AC_SUBST(LD_SHLIB_DISALLOW_UNDEF_FLAG)
171])
172
173AC_DEFUN([AC_LIBREPLACE_SHLD],
174[
175 AC_REQUIRE([AC_LIBREPLACE_LD_SHLIB_LINKER])
176 SHLD="$LD_SHLIB_LINKER"
177 AC_SUBST(SHLD)
178])
179
180AC_DEFUN([AC_LIBREPLACE_SHLD_FLAGS],
181[
182 AC_REQUIRE([AC_LIBREPLACE_LD_SHLIB_FLAGS])
183 AC_REQUIRE([AC_LIBREPLACE_LD_SHLIB_DISALLOW_UNDEF_FLAG])
184 SHLD_FLAGS="$LD_SHLIB_FLAGS $LD_SHLIB_DISALLOW_UNDEF_FLAG"
185 AC_SUBST(SHLD_FLAGS)
186])
187
188AC_DEFUN([AC_LD_SHLIBEXT],
189[
190 SHLIBEXT="so"
191 case "$host_os" in
192 *hpux*)
193 if test "$host_cpu" = "ia64"; then
194 SHLIBEXT="so"
195 else
196 SHLIBEXT="sl"
197 fi
198 ;;
199 *darwin*)
200 SHLIBEXT="dylib"
201 ;;
202 esac
203 AC_SUBST(SHLIBEXT)
204])
205
206AC_DEFUN([AC_LD_SONAMEFLAG],
207[
208 AC_SUBST(SONAMEFLAG)
209 SONAMEFLAG=""
210 case "$host_os" in
211 *linux*|*gnu*|*qnx*)
212 SONAMEFLAG="-Wl,-soname="
213 ;;
214 *solaris*)
215 SONAMEFLAG="-h "
216 if test "${GCC}" = "yes"; then
217 SONAMEFLAG="-Wl,-soname="
218 fi
219 ;;
220 *sunos*)
221 SONAMEFLAG="-Wl,-h,"
222 ;;
223 *netbsd* | *freebsd* | *dragonfly* )
224 SONAMEFLAG="-Wl,-soname,"
225 ;;
226 *openbsd*)
227 SONAMEFLAG="-Wl,-soname,"
228 ;;
229 *irix*)
230 SONAMEFLAG="-Wl,-soname,"
231 ;;
232 *hpux*)
233 SONAMEFLAG="-Wl,+h,"
234 ;;
235 *osf*)
236 SONAMEFLAG="-Wl,-soname,"
237 ;;
238 *unixware*)
239 SONAMEFLAG="-Wl,-soname,"
240 ;;
241 *darwin*)
242 SONAMEFLAG="#"
243 ;;
244 *aix*)
245 # Not supported
246 SONAMEFLAG="#"
247 ;;
248 esac
249])
250
251AC_DEFUN([AC_LD_VERSIONSCRIPT],
252[
253 AC_SUBST(VERSIONSCRIPT)
254 VERSIONSCRIPT=""
255 case "$host_os" in
256 *linux*|*gnu*)
257 VERSIONSCRIPT="-Wl,--version-script"
258 ;;
259 *solaris*)
260 if test "${GCC}" = "yes"; then
261 VERSIONSCRIPT="-Wl,--version-script"
262 fi
263 ;;
264 esac
265])
266
267AC_DEFUN([AC_LIBREPLACE_MDLD],
268[
269 AC_REQUIRE([AC_LIBREPLACE_LD_SHLIB_LINKER])
270 MDLD="$LD_SHLIB_LINKER"
271 AC_SUBST(MDLD)
272])
273
274AC_DEFUN([AC_LIBREPLACE_LD_SHLIB_ALLOW_UNDEF_FLAG],
275[
276 LD_ALLOW_SHLIB_UNDEF_FLAG=""
277
278 case "$host_os" in
279 *linux*|*gnu*)
280 LD_SHLIB_ALLOW_UNDEF_FLAG="-Wl,--allow-shlib-undefined"
281 ;;
282 *osf*)
283 LD_SHLIB_ALLOW_UNDEF_FLAG="-Wl,-expect_unresolved,\"*\""
284 ;;
285 *darwin*)
286 LD_SHLIB_ALLOW_UNDEF_FLAG="-undefined dynamic_lookup"
287 ;;
288 *aix*)
289 LD_SHLIB_ALLOW_UNDEF_FLAG="-Wl,-bnoentry"
290 ;;
291 esac
292
293 AC_SUBST(LD_SHLIB_ALLOW_UNDEF_FLAG)
294])
295
296AC_DEFUN([AC_LIBREPLACE_MDLD_FLAGS],
297[
298 AC_REQUIRE([AC_LIBREPLACE_LD_SHLIB_FLAGS])
299 AC_REQUIRE([AC_LIBREPLACE_LD_SHLIB_ALLOW_UNDEF_FLAG])
300 MDLD_FLAGS="$LD_SHLIB_FLAGS $LD_SHLIB_ALLOW_UNDEF_FLAG"
301 AC_SUBST(MDLD_FLAGS)
302])
303
304AC_DEFUN([AC_LIBREPLACE_RUNTIME_LIB_PATH_VAR],
305[
306 case "$host_os" in
307 *linux*|*gnu*)
308 LIB_PATH_VAR=LD_LIBRARY_PATH
309 ;;
310 *bsd*)
311 LIB_PATH_VAR=LD_LIBRARY_PATH
312 ;;
313 *solaris*)
314 LIB_PATH_VAR=LD_LIBRARY_PATH
315 ;;
316 *hpux*)
317 LIB_PATH_VAR=SHLIB_PATH
318 ;;
319 *osf*)
320 LIB_PATH_VAR=LD_LIBRARY_PATH
321 ;;
322 *aix*)
323 LIB_PATH_VAR=LIBPATH
324 ;;
325 *irix*)
326 LIB_PATH_VAR=LD_LIBRARY_PATH
327 ;;
328 *darwin*)
329 LIB_PATH_VAR=DYLD_LIBRARY_PATH
330 ;;
331 *)
332 LIB_PATH_VAR=LD_LIBRARY_PATH
333 ;;
334 esac
335
336 AC_SUBST(LIB_PATH_VAR)
337])
Note: See TracBrowser for help on using the repository browser.