Commit | Line | Data |
---|---|---|
c0c3707f CB |
1 | # lib-link.m4 serial 31 |
2 | dnl Copyright (C) 2001-2019 Free Software Foundation, Inc. | |
5abebf3c CB |
3 | dnl This file is free software; the Free Software Foundation |
4 | dnl gives unlimited permission to copy and/or distribute it, | |
5 | dnl with or without modifications, as long as this notice is preserved. | |
6 | ||
7 | dnl From Bruno Haible. | |
8 | ||
c0c3707f | 9 | AC_PREREQ([2.61]) |
5abebf3c CB |
10 | |
11 | dnl AC_LIB_LINKFLAGS(name [, dependencies]) searches for libname and | |
12 | dnl the libraries corresponding to explicit and implicit dependencies. | |
13 | dnl Sets and AC_SUBSTs the LIB${NAME} and LTLIB${NAME} variables and | |
14 | dnl augments the CPPFLAGS variable. | |
15 | dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname | |
16 | dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. | |
17 | AC_DEFUN([AC_LIB_LINKFLAGS], | |
18 | [ | |
19 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) | |
20 | AC_REQUIRE([AC_LIB_RPATH]) | |
21 | pushdef([Name],[m4_translit([$1],[./+-], [____])]) | |
22 | pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], | |
23 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) | |
24 | AC_CACHE_CHECK([how to link with lib[]$1], [ac_cv_lib[]Name[]_libs], [ | |
25 | AC_LIB_LINKFLAGS_BODY([$1], [$2]) | |
26 | ac_cv_lib[]Name[]_libs="$LIB[]NAME" | |
27 | ac_cv_lib[]Name[]_ltlibs="$LTLIB[]NAME" | |
28 | ac_cv_lib[]Name[]_cppflags="$INC[]NAME" | |
29 | ac_cv_lib[]Name[]_prefix="$LIB[]NAME[]_PREFIX" | |
30 | ]) | |
31 | LIB[]NAME="$ac_cv_lib[]Name[]_libs" | |
32 | LTLIB[]NAME="$ac_cv_lib[]Name[]_ltlibs" | |
33 | INC[]NAME="$ac_cv_lib[]Name[]_cppflags" | |
34 | LIB[]NAME[]_PREFIX="$ac_cv_lib[]Name[]_prefix" | |
35 | AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) | |
36 | AC_SUBST([LIB]NAME) | |
37 | AC_SUBST([LTLIB]NAME) | |
38 | AC_SUBST([LIB]NAME[_PREFIX]) | |
39 | dnl Also set HAVE_LIB[]NAME so that AC_LIB_HAVE_LINKFLAGS can reuse the | |
40 | dnl results of this search when this library appears as a dependency. | |
41 | HAVE_LIB[]NAME=yes | |
42 | popdef([NAME]) | |
43 | popdef([Name]) | |
44 | ]) | |
45 | ||
46 | dnl AC_LIB_HAVE_LINKFLAGS(name, dependencies, includes, testcode, [missing-message]) | |
47 | dnl searches for libname and the libraries corresponding to explicit and | |
48 | dnl implicit dependencies, together with the specified include files and | |
49 | dnl the ability to compile and link the specified testcode. The missing-message | |
50 | dnl defaults to 'no' and may contain additional hints for the user. | |
51 | dnl If found, it sets and AC_SUBSTs HAVE_LIB${NAME}=yes and the LIB${NAME} | |
52 | dnl and LTLIB${NAME} variables and augments the CPPFLAGS variable, and | |
53 | dnl #defines HAVE_LIB${NAME} to 1. Otherwise, it sets and AC_SUBSTs | |
54 | dnl HAVE_LIB${NAME}=no and LIB${NAME} and LTLIB${NAME} to empty. | |
55 | dnl Sets and AC_SUBSTs the LIB${NAME}_PREFIX variable to nonempty if libname | |
56 | dnl was found in ${LIB${NAME}_PREFIX}/$acl_libdirstem. | |
57 | AC_DEFUN([AC_LIB_HAVE_LINKFLAGS], | |
58 | [ | |
59 | AC_REQUIRE([AC_LIB_PREPARE_PREFIX]) | |
60 | AC_REQUIRE([AC_LIB_RPATH]) | |
61 | pushdef([Name],[m4_translit([$1],[./+-], [____])]) | |
62 | pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], | |
63 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) | |
64 | ||
65 | dnl Search for lib[]Name and define LIB[]NAME, LTLIB[]NAME and INC[]NAME | |
66 | dnl accordingly. | |
67 | AC_LIB_LINKFLAGS_BODY([$1], [$2]) | |
68 | ||
69 | dnl Add $INC[]NAME to CPPFLAGS before performing the following checks, | |
70 | dnl because if the user has installed lib[]Name and not disabled its use | |
71 | dnl via --without-lib[]Name-prefix, he wants to use it. | |
72 | ac_save_CPPFLAGS="$CPPFLAGS" | |
73 | AC_LIB_APPENDTOVAR([CPPFLAGS], [$INC]NAME) | |
74 | ||
75 | AC_CACHE_CHECK([for lib[]$1], [ac_cv_lib[]Name], [ | |
76 | ac_save_LIBS="$LIBS" | |
77 | dnl If $LIB[]NAME contains some -l options, add it to the end of LIBS, | |
78 | dnl because these -l options might require -L options that are present in | |
79 | dnl LIBS. -l options benefit only from the -L options listed before it. | |
80 | dnl Otherwise, add it to the front of LIBS, because it may be a static | |
81 | dnl library that depends on another static library that is present in LIBS. | |
82 | dnl Static libraries benefit only from the static libraries listed after | |
83 | dnl it. | |
84 | case " $LIB[]NAME" in | |
85 | *" -l"*) LIBS="$LIBS $LIB[]NAME" ;; | |
86 | *) LIBS="$LIB[]NAME $LIBS" ;; | |
87 | esac | |
88 | AC_LINK_IFELSE( | |
89 | [AC_LANG_PROGRAM([[$3]], [[$4]])], | |
90 | [ac_cv_lib[]Name=yes], | |
91 | [ac_cv_lib[]Name='m4_if([$5], [], [no], [[$5]])']) | |
92 | LIBS="$ac_save_LIBS" | |
93 | ]) | |
94 | if test "$ac_cv_lib[]Name" = yes; then | |
95 | HAVE_LIB[]NAME=yes | |
96 | AC_DEFINE([HAVE_LIB]NAME, 1, [Define if you have the lib][$1 library.]) | |
97 | AC_MSG_CHECKING([how to link with lib[]$1]) | |
98 | AC_MSG_RESULT([$LIB[]NAME]) | |
99 | else | |
100 | HAVE_LIB[]NAME=no | |
101 | dnl If $LIB[]NAME didn't lead to a usable library, we don't need | |
102 | dnl $INC[]NAME either. | |
103 | CPPFLAGS="$ac_save_CPPFLAGS" | |
104 | LIB[]NAME= | |
105 | LTLIB[]NAME= | |
106 | LIB[]NAME[]_PREFIX= | |
107 | fi | |
108 | AC_SUBST([HAVE_LIB]NAME) | |
109 | AC_SUBST([LIB]NAME) | |
110 | AC_SUBST([LTLIB]NAME) | |
111 | AC_SUBST([LIB]NAME[_PREFIX]) | |
112 | popdef([NAME]) | |
113 | popdef([Name]) | |
114 | ]) | |
115 | ||
116 | dnl Determine the platform dependent parameters needed to use rpath: | |
117 | dnl acl_libext, | |
118 | dnl acl_shlibext, | |
119 | dnl acl_libname_spec, | |
120 | dnl acl_library_names_spec, | |
121 | dnl acl_hardcode_libdir_flag_spec, | |
122 | dnl acl_hardcode_libdir_separator, | |
123 | dnl acl_hardcode_direct, | |
124 | dnl acl_hardcode_minus_L. | |
125 | AC_DEFUN([AC_LIB_RPATH], | |
126 | [ | |
c0c3707f CB |
127 | dnl Complain if config.rpath is missing. |
128 | AC_REQUIRE_AUX_FILE([config.rpath]) | |
5abebf3c CB |
129 | AC_REQUIRE([AC_PROG_CC]) dnl we use $CC, $GCC, $LDFLAGS |
130 | AC_REQUIRE([AC_LIB_PROG_LD]) dnl we use $LD, $with_gnu_ld | |
131 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use $host | |
132 | AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT]) dnl we use $ac_aux_dir | |
133 | AC_CACHE_CHECK([for shared library run path origin], [acl_cv_rpath], [ | |
134 | CC="$CC" GCC="$GCC" LDFLAGS="$LDFLAGS" LD="$LD" with_gnu_ld="$with_gnu_ld" \ | |
135 | ${CONFIG_SHELL-/bin/sh} "$ac_aux_dir/config.rpath" "$host" > conftest.sh | |
136 | . ./conftest.sh | |
137 | rm -f ./conftest.sh | |
138 | acl_cv_rpath=done | |
139 | ]) | |
140 | wl="$acl_cv_wl" | |
141 | acl_libext="$acl_cv_libext" | |
142 | acl_shlibext="$acl_cv_shlibext" | |
143 | acl_libname_spec="$acl_cv_libname_spec" | |
144 | acl_library_names_spec="$acl_cv_library_names_spec" | |
145 | acl_hardcode_libdir_flag_spec="$acl_cv_hardcode_libdir_flag_spec" | |
146 | acl_hardcode_libdir_separator="$acl_cv_hardcode_libdir_separator" | |
147 | acl_hardcode_direct="$acl_cv_hardcode_direct" | |
148 | acl_hardcode_minus_L="$acl_cv_hardcode_minus_L" | |
149 | dnl Determine whether the user wants rpath handling at all. | |
150 | AC_ARG_ENABLE([rpath], | |
151 | [ --disable-rpath do not hardcode runtime library paths], | |
152 | :, enable_rpath=yes) | |
153 | ]) | |
154 | ||
155 | dnl AC_LIB_FROMPACKAGE(name, package) | |
156 | dnl declares that libname comes from the given package. The configure file | |
157 | dnl will then not have a --with-libname-prefix option but a | |
158 | dnl --with-package-prefix option. Several libraries can come from the same | |
159 | dnl package. This declaration must occur before an AC_LIB_LINKFLAGS or similar | |
160 | dnl macro call that searches for libname. | |
161 | AC_DEFUN([AC_LIB_FROMPACKAGE], | |
162 | [ | |
163 | pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], | |
164 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) | |
165 | define([acl_frompackage_]NAME, [$2]) | |
166 | popdef([NAME]) | |
167 | pushdef([PACK],[$2]) | |
168 | pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], | |
169 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) | |
170 | define([acl_libsinpackage_]PACKUP, | |
171 | m4_ifdef([acl_libsinpackage_]PACKUP, [m4_defn([acl_libsinpackage_]PACKUP)[, ]],)[lib$1]) | |
172 | popdef([PACKUP]) | |
173 | popdef([PACK]) | |
174 | ]) | |
175 | ||
176 | dnl AC_LIB_LINKFLAGS_BODY(name [, dependencies]) searches for libname and | |
177 | dnl the libraries corresponding to explicit and implicit dependencies. | |
178 | dnl Sets the LIB${NAME}, LTLIB${NAME} and INC${NAME} variables. | |
179 | dnl Also, sets the LIB${NAME}_PREFIX variable to nonempty if libname was found | |
180 | dnl in ${LIB${NAME}_PREFIX}/$acl_libdirstem. | |
181 | AC_DEFUN([AC_LIB_LINKFLAGS_BODY], | |
182 | [ | |
183 | AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) | |
184 | pushdef([NAME],[m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./+-], | |
185 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) | |
186 | pushdef([PACK],[m4_ifdef([acl_frompackage_]NAME, [acl_frompackage_]NAME, lib[$1])]) | |
187 | pushdef([PACKUP],[m4_translit(PACK,[abcdefghijklmnopqrstuvwxyz./+-], | |
188 | [ABCDEFGHIJKLMNOPQRSTUVWXYZ____])]) | |
189 | pushdef([PACKLIBS],[m4_ifdef([acl_frompackage_]NAME, [acl_libsinpackage_]PACKUP, lib[$1])]) | |
5abebf3c CB |
190 | dnl By default, look in $includedir and $libdir. |
191 | use_additional=yes | |
192 | AC_LIB_WITH_FINAL_PREFIX([ | |
193 | eval additional_includedir=\"$includedir\" | |
194 | eval additional_libdir=\"$libdir\" | |
c0c3707f CB |
195 | eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" |
196 | eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" | |
5abebf3c | 197 | ]) |
c0c3707f CB |
198 | AC_ARG_WITH(PACK[-prefix], |
199 | [[ --with-]]PACK[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib | |
200 | --without-]]PACK[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], | |
5abebf3c CB |
201 | [ |
202 | if test "X$withval" = "Xno"; then | |
203 | use_additional=no | |
204 | else | |
205 | if test "X$withval" = "X"; then | |
206 | AC_LIB_WITH_FINAL_PREFIX([ | |
207 | eval additional_includedir=\"$includedir\" | |
208 | eval additional_libdir=\"$libdir\" | |
c0c3707f CB |
209 | eval additional_libdir2=\"$exec_prefix/$acl_libdirstem2\" |
210 | eval additional_libdir3=\"$exec_prefix/$acl_libdirstem3\" | |
5abebf3c CB |
211 | ]) |
212 | else | |
213 | additional_includedir="$withval/include" | |
214 | additional_libdir="$withval/$acl_libdirstem" | |
c0c3707f CB |
215 | additional_libdir2="$withval/$acl_libdirstem2" |
216 | additional_libdir3="$withval/$acl_libdirstem3" | |
5abebf3c CB |
217 | fi |
218 | fi | |
219 | ]) | |
c0c3707f CB |
220 | if test "X$additional_libdir2" = "X$additional_libdir"; then |
221 | additional_libdir2= | |
222 | fi | |
223 | if test "X$additional_libdir3" = "X$additional_libdir"; then | |
224 | additional_libdir3= | |
225 | fi | |
5abebf3c CB |
226 | dnl Search the library and its dependencies in $additional_libdir and |
227 | dnl $LDFLAGS. Using breadth-first-seach. | |
228 | LIB[]NAME= | |
229 | LTLIB[]NAME= | |
230 | INC[]NAME= | |
231 | LIB[]NAME[]_PREFIX= | |
232 | dnl HAVE_LIB${NAME} is an indicator that LIB${NAME}, LTLIB${NAME} have been | |
233 | dnl computed. So it has to be reset here. | |
234 | HAVE_LIB[]NAME= | |
235 | rpathdirs= | |
236 | ltrpathdirs= | |
237 | names_already_handled= | |
238 | names_next_round='$1 $2' | |
239 | while test -n "$names_next_round"; do | |
240 | names_this_round="$names_next_round" | |
241 | names_next_round= | |
242 | for name in $names_this_round; do | |
243 | already_handled= | |
244 | for n in $names_already_handled; do | |
245 | if test "$n" = "$name"; then | |
246 | already_handled=yes | |
247 | break | |
248 | fi | |
249 | done | |
250 | if test -z "$already_handled"; then | |
251 | names_already_handled="$names_already_handled $name" | |
252 | dnl See if it was already located by an earlier AC_LIB_LINKFLAGS | |
253 | dnl or AC_LIB_HAVE_LINKFLAGS call. | |
254 | uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'` | |
255 | eval value=\"\$HAVE_LIB$uppername\" | |
256 | if test -n "$value"; then | |
257 | if test "$value" = yes; then | |
258 | eval value=\"\$LIB$uppername\" | |
259 | test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value" | |
260 | eval value=\"\$LTLIB$uppername\" | |
261 | test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value" | |
262 | else | |
263 | dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined | |
264 | dnl that this library doesn't exist. So just drop it. | |
265 | : | |
266 | fi | |
267 | else | |
268 | dnl Search the library lib$name in $additional_libdir and $LDFLAGS | |
269 | dnl and the already constructed $LIBNAME/$LTLIBNAME. | |
270 | found_dir= | |
271 | found_la= | |
272 | found_so= | |
273 | found_a= | |
274 | eval libname=\"$acl_libname_spec\" # typically: libname=lib$name | |
275 | if test -n "$acl_shlibext"; then | |
276 | shrext=".$acl_shlibext" # typically: shrext=.so | |
277 | else | |
278 | shrext= | |
279 | fi | |
280 | if test $use_additional = yes; then | |
c0c3707f CB |
281 | for additional_libdir_variable in additional_libdir additional_libdir2 additional_libdir3; do |
282 | if test "X$found_dir" = "X"; then | |
283 | eval dir=\$$additional_libdir_variable | |
284 | if test -n "$dir"; then | |
285 | dnl The same code as in the loop below: | |
286 | dnl First look for a shared library. | |
287 | if test -n "$acl_shlibext"; then | |
288 | if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then | |
289 | found_dir="$dir" | |
290 | found_so="$dir/$libname$shrext" | |
291 | else | |
292 | if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then | |
293 | ver=`(cd "$dir" && \ | |
294 | for f in "$libname$shrext".*; do echo "$f"; done \ | |
295 | | sed -e "s,^$libname$shrext\\\\.,," \ | |
296 | | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ | |
297 | | sed 1q ) 2>/dev/null` | |
298 | if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$libname$shrext.$ver"; then | |
299 | found_dir="$dir" | |
300 | found_so="$dir/$libname$shrext.$ver" | |
301 | fi | |
302 | else | |
303 | eval library_names=\"$acl_library_names_spec\" | |
304 | for f in $library_names; do | |
305 | if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then | |
306 | found_dir="$dir" | |
307 | found_so="$dir/$f" | |
308 | break | |
309 | fi | |
310 | done | |
311 | fi | |
312 | fi | |
5abebf3c | 313 | fi |
c0c3707f CB |
314 | dnl Then look for a static library. |
315 | if test "X$found_dir" = "X"; then | |
316 | if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then | |
5abebf3c | 317 | found_dir="$dir" |
c0c3707f | 318 | found_a="$dir/$libname.$acl_libext" |
5abebf3c | 319 | fi |
c0c3707f CB |
320 | fi |
321 | if test "X$found_dir" != "X"; then | |
322 | if test -f "$dir/$libname.la"; then | |
323 | found_la="$dir/$libname.la" | |
324 | fi | |
325 | fi | |
5abebf3c CB |
326 | fi |
327 | fi | |
c0c3707f | 328 | done |
5abebf3c CB |
329 | fi |
330 | if test "X$found_dir" = "X"; then | |
331 | for x in $LDFLAGS $LTLIB[]NAME; do | |
332 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
333 | case "$x" in | |
334 | -L*) | |
335 | dir=`echo "X$x" | sed -e 's/^X-L//'` | |
336 | dnl First look for a shared library. | |
337 | if test -n "$acl_shlibext"; then | |
c0c3707f | 338 | if test -f "$dir/$libname$shrext" && acl_is_expected_elfclass < "$dir/$libname$shrext"; then |
5abebf3c CB |
339 | found_dir="$dir" |
340 | found_so="$dir/$libname$shrext" | |
341 | else | |
342 | if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then | |
343 | ver=`(cd "$dir" && \ | |
344 | for f in "$libname$shrext".*; do echo "$f"; done \ | |
345 | | sed -e "s,^$libname$shrext\\\\.,," \ | |
346 | | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ | |
347 | | sed 1q ) 2>/dev/null` | |
c0c3707f | 348 | if test -n "$ver" && test -f "$dir/$libname$shrext.$ver" && acl_is_expected_elfclass < "$dir/$libname$shrext.$ver"; then |
5abebf3c CB |
349 | found_dir="$dir" |
350 | found_so="$dir/$libname$shrext.$ver" | |
351 | fi | |
352 | else | |
353 | eval library_names=\"$acl_library_names_spec\" | |
354 | for f in $library_names; do | |
c0c3707f | 355 | if test -f "$dir/$f" && acl_is_expected_elfclass < "$dir/$f"; then |
5abebf3c CB |
356 | found_dir="$dir" |
357 | found_so="$dir/$f" | |
358 | break | |
359 | fi | |
360 | done | |
361 | fi | |
362 | fi | |
363 | fi | |
364 | dnl Then look for a static library. | |
365 | if test "X$found_dir" = "X"; then | |
c0c3707f | 366 | if test -f "$dir/$libname.$acl_libext" && ${AR-ar} -p "$dir/$libname.$acl_libext" | acl_is_expected_elfclass; then |
5abebf3c CB |
367 | found_dir="$dir" |
368 | found_a="$dir/$libname.$acl_libext" | |
369 | fi | |
370 | fi | |
371 | if test "X$found_dir" != "X"; then | |
372 | if test -f "$dir/$libname.la"; then | |
373 | found_la="$dir/$libname.la" | |
374 | fi | |
375 | fi | |
376 | ;; | |
377 | esac | |
378 | if test "X$found_dir" != "X"; then | |
379 | break | |
380 | fi | |
381 | done | |
382 | fi | |
383 | if test "X$found_dir" != "X"; then | |
384 | dnl Found the library. | |
385 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name" | |
386 | if test "X$found_so" != "X"; then | |
387 | dnl Linking with a shared library. We attempt to hardcode its | |
388 | dnl directory into the executable's runpath, unless it's the | |
389 | dnl standard /usr/lib. | |
390 | if test "$enable_rpath" = no \ | |
391 | || test "X$found_dir" = "X/usr/$acl_libdirstem" \ | |
c0c3707f CB |
392 | || test "X$found_dir" = "X/usr/$acl_libdirstem2" \ |
393 | || test "X$found_dir" = "X/usr/$acl_libdirstem3"; then | |
5abebf3c CB |
394 | dnl No hardcoding is needed. |
395 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" | |
396 | else | |
397 | dnl Use an explicit option to hardcode DIR into the resulting | |
398 | dnl binary. | |
399 | dnl Potentially add DIR to ltrpathdirs. | |
400 | dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. | |
401 | haveit= | |
402 | for x in $ltrpathdirs; do | |
403 | if test "X$x" = "X$found_dir"; then | |
404 | haveit=yes | |
405 | break | |
406 | fi | |
407 | done | |
408 | if test -z "$haveit"; then | |
409 | ltrpathdirs="$ltrpathdirs $found_dir" | |
410 | fi | |
411 | dnl The hardcoding into $LIBNAME is system dependent. | |
412 | if test "$acl_hardcode_direct" = yes; then | |
413 | dnl Using DIR/libNAME.so during linking hardcodes DIR into the | |
414 | dnl resulting binary. | |
415 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" | |
416 | else | |
417 | if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then | |
418 | dnl Use an explicit option to hardcode DIR into the resulting | |
419 | dnl binary. | |
420 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" | |
421 | dnl Potentially add DIR to rpathdirs. | |
422 | dnl The rpathdirs will be appended to $LIBNAME at the end. | |
423 | haveit= | |
424 | for x in $rpathdirs; do | |
425 | if test "X$x" = "X$found_dir"; then | |
426 | haveit=yes | |
427 | break | |
428 | fi | |
429 | done | |
430 | if test -z "$haveit"; then | |
431 | rpathdirs="$rpathdirs $found_dir" | |
432 | fi | |
433 | else | |
434 | dnl Rely on "-L$found_dir". | |
435 | dnl But don't add it if it's already contained in the LDFLAGS | |
436 | dnl or the already constructed $LIBNAME | |
437 | haveit= | |
438 | for x in $LDFLAGS $LIB[]NAME; do | |
439 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
440 | if test "X$x" = "X-L$found_dir"; then | |
441 | haveit=yes | |
442 | break | |
443 | fi | |
444 | done | |
445 | if test -z "$haveit"; then | |
446 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" | |
447 | fi | |
448 | if test "$acl_hardcode_minus_L" != no; then | |
449 | dnl FIXME: Not sure whether we should use | |
450 | dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" | |
451 | dnl here. | |
452 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" | |
453 | else | |
454 | dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH | |
455 | dnl here, because this doesn't fit in flags passed to the | |
456 | dnl compiler. So give up. No hardcoding. This affects only | |
457 | dnl very old systems. | |
458 | dnl FIXME: Not sure whether we should use | |
459 | dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" | |
460 | dnl here. | |
461 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" | |
462 | fi | |
463 | fi | |
464 | fi | |
465 | fi | |
466 | else | |
467 | if test "X$found_a" != "X"; then | |
468 | dnl Linking with a static library. | |
469 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a" | |
470 | else | |
471 | dnl We shouldn't come here, but anyway it's good to have a | |
472 | dnl fallback. | |
473 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name" | |
474 | fi | |
475 | fi | |
476 | dnl Assume the include files are nearby. | |
477 | additional_includedir= | |
478 | case "$found_dir" in | |
479 | */$acl_libdirstem | */$acl_libdirstem/) | |
480 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'` | |
481 | if test "$name" = '$1'; then | |
482 | LIB[]NAME[]_PREFIX="$basedir" | |
483 | fi | |
484 | additional_includedir="$basedir/include" | |
485 | ;; | |
486 | */$acl_libdirstem2 | */$acl_libdirstem2/) | |
487 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'` | |
488 | if test "$name" = '$1'; then | |
489 | LIB[]NAME[]_PREFIX="$basedir" | |
490 | fi | |
491 | additional_includedir="$basedir/include" | |
492 | ;; | |
c0c3707f CB |
493 | */$acl_libdirstem3 | */$acl_libdirstem3/) |
494 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem3/"'*$,,'` | |
495 | if test "$name" = '$1'; then | |
496 | LIB[]NAME[]_PREFIX="$basedir" | |
497 | fi | |
498 | additional_includedir="$basedir/include" | |
499 | ;; | |
5abebf3c CB |
500 | esac |
501 | if test "X$additional_includedir" != "X"; then | |
502 | dnl Potentially add $additional_includedir to $INCNAME. | |
503 | dnl But don't add it | |
504 | dnl 1. if it's the standard /usr/include, | |
505 | dnl 2. if it's /usr/local/include and we are using GCC on Linux, | |
506 | dnl 3. if it's already present in $CPPFLAGS or the already | |
507 | dnl constructed $INCNAME, | |
508 | dnl 4. if it doesn't exist as a directory. | |
509 | if test "X$additional_includedir" != "X/usr/include"; then | |
510 | haveit= | |
511 | if test "X$additional_includedir" = "X/usr/local/include"; then | |
512 | if test -n "$GCC"; then | |
513 | case $host_os in | |
514 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; | |
515 | esac | |
516 | fi | |
517 | fi | |
518 | if test -z "$haveit"; then | |
519 | for x in $CPPFLAGS $INC[]NAME; do | |
520 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
521 | if test "X$x" = "X-I$additional_includedir"; then | |
522 | haveit=yes | |
523 | break | |
524 | fi | |
525 | done | |
526 | if test -z "$haveit"; then | |
527 | if test -d "$additional_includedir"; then | |
528 | dnl Really add $additional_includedir to $INCNAME. | |
529 | INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir" | |
530 | fi | |
531 | fi | |
532 | fi | |
533 | fi | |
534 | fi | |
535 | dnl Look for dependencies. | |
536 | if test -n "$found_la"; then | |
537 | dnl Read the .la file. It defines the variables | |
538 | dnl dlname, library_names, old_library, dependency_libs, current, | |
539 | dnl age, revision, installed, dlopen, dlpreopen, libdir. | |
540 | save_libdir="$libdir" | |
541 | case "$found_la" in | |
542 | */* | *\\*) . "$found_la" ;; | |
543 | *) . "./$found_la" ;; | |
544 | esac | |
545 | libdir="$save_libdir" | |
546 | dnl We use only dependency_libs. | |
547 | for dep in $dependency_libs; do | |
548 | case "$dep" in | |
549 | -L*) | |
c0c3707f CB |
550 | dependency_libdir=`echo "X$dep" | sed -e 's/^X-L//'` |
551 | dnl Potentially add $dependency_libdir to $LIBNAME and $LTLIBNAME. | |
5abebf3c CB |
552 | dnl But don't add it |
553 | dnl 1. if it's the standard /usr/lib, | |
554 | dnl 2. if it's /usr/local/lib and we are using GCC on Linux, | |
555 | dnl 3. if it's already present in $LDFLAGS or the already | |
556 | dnl constructed $LIBNAME, | |
557 | dnl 4. if it doesn't exist as a directory. | |
c0c3707f CB |
558 | if test "X$dependency_libdir" != "X/usr/$acl_libdirstem" \ |
559 | && test "X$dependency_libdir" != "X/usr/$acl_libdirstem2" \ | |
560 | && test "X$dependency_libdir" != "X/usr/$acl_libdirstem3"; then | |
5abebf3c | 561 | haveit= |
c0c3707f CB |
562 | if test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem" \ |
563 | || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem2" \ | |
564 | || test "X$dependency_libdir" = "X/usr/local/$acl_libdirstem3"; then | |
5abebf3c CB |
565 | if test -n "$GCC"; then |
566 | case $host_os in | |
567 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; | |
568 | esac | |
569 | fi | |
570 | fi | |
571 | if test -z "$haveit"; then | |
572 | haveit= | |
573 | for x in $LDFLAGS $LIB[]NAME; do | |
574 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
c0c3707f | 575 | if test "X$x" = "X-L$dependency_libdir"; then |
5abebf3c CB |
576 | haveit=yes |
577 | break | |
578 | fi | |
579 | done | |
580 | if test -z "$haveit"; then | |
c0c3707f CB |
581 | if test -d "$dependency_libdir"; then |
582 | dnl Really add $dependency_libdir to $LIBNAME. | |
583 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$dependency_libdir" | |
5abebf3c CB |
584 | fi |
585 | fi | |
586 | haveit= | |
587 | for x in $LDFLAGS $LTLIB[]NAME; do | |
588 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
c0c3707f | 589 | if test "X$x" = "X-L$dependency_libdir"; then |
5abebf3c CB |
590 | haveit=yes |
591 | break | |
592 | fi | |
593 | done | |
594 | if test -z "$haveit"; then | |
c0c3707f CB |
595 | if test -d "$dependency_libdir"; then |
596 | dnl Really add $dependency_libdir to $LTLIBNAME. | |
597 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$dependency_libdir" | |
5abebf3c CB |
598 | fi |
599 | fi | |
600 | fi | |
601 | fi | |
602 | ;; | |
603 | -R*) | |
604 | dir=`echo "X$dep" | sed -e 's/^X-R//'` | |
605 | if test "$enable_rpath" != no; then | |
606 | dnl Potentially add DIR to rpathdirs. | |
607 | dnl The rpathdirs will be appended to $LIBNAME at the end. | |
608 | haveit= | |
609 | for x in $rpathdirs; do | |
610 | if test "X$x" = "X$dir"; then | |
611 | haveit=yes | |
612 | break | |
613 | fi | |
614 | done | |
615 | if test -z "$haveit"; then | |
616 | rpathdirs="$rpathdirs $dir" | |
617 | fi | |
618 | dnl Potentially add DIR to ltrpathdirs. | |
619 | dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. | |
620 | haveit= | |
621 | for x in $ltrpathdirs; do | |
622 | if test "X$x" = "X$dir"; then | |
623 | haveit=yes | |
624 | break | |
625 | fi | |
626 | done | |
627 | if test -z "$haveit"; then | |
628 | ltrpathdirs="$ltrpathdirs $dir" | |
629 | fi | |
630 | fi | |
631 | ;; | |
632 | -l*) | |
633 | dnl Handle this in the next round. | |
634 | names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` | |
635 | ;; | |
636 | *.la) | |
637 | dnl Handle this in the next round. Throw away the .la's | |
638 | dnl directory; it is already contained in a preceding -L | |
639 | dnl option. | |
640 | names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` | |
641 | ;; | |
642 | *) | |
643 | dnl Most likely an immediate library name. | |
644 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep" | |
645 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep" | |
646 | ;; | |
647 | esac | |
648 | done | |
649 | fi | |
650 | else | |
651 | dnl Didn't find the library; assume it is in the system directories | |
652 | dnl known to the linker and runtime loader. (All the system | |
653 | dnl directories known to the linker should also be known to the | |
654 | dnl runtime loader, otherwise the system is severely misconfigured.) | |
655 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" | |
656 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name" | |
657 | fi | |
658 | fi | |
659 | fi | |
660 | done | |
661 | done | |
662 | if test "X$rpathdirs" != "X"; then | |
663 | if test -n "$acl_hardcode_libdir_separator"; then | |
664 | dnl Weird platform: only the last -rpath option counts, the user must | |
665 | dnl pass all path elements in one option. We can arrange that for a | |
666 | dnl single library, but not when more than one $LIBNAMEs are used. | |
667 | alldirs= | |
668 | for found_dir in $rpathdirs; do | |
669 | alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" | |
670 | done | |
671 | dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. | |
672 | acl_save_libdir="$libdir" | |
673 | libdir="$alldirs" | |
674 | eval flag=\"$acl_hardcode_libdir_flag_spec\" | |
675 | libdir="$acl_save_libdir" | |
676 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" | |
677 | else | |
678 | dnl The -rpath options are cumulative. | |
679 | for found_dir in $rpathdirs; do | |
680 | acl_save_libdir="$libdir" | |
681 | libdir="$found_dir" | |
682 | eval flag=\"$acl_hardcode_libdir_flag_spec\" | |
683 | libdir="$acl_save_libdir" | |
684 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" | |
685 | done | |
686 | fi | |
687 | fi | |
688 | if test "X$ltrpathdirs" != "X"; then | |
689 | dnl When using libtool, the option that works for both libraries and | |
690 | dnl executables is -R. The -R options are cumulative. | |
691 | for found_dir in $ltrpathdirs; do | |
692 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" | |
693 | done | |
694 | fi | |
5abebf3c CB |
695 | popdef([PACKLIBS]) |
696 | popdef([PACKUP]) | |
697 | popdef([PACK]) | |
698 | popdef([NAME]) | |
699 | ]) | |
700 | ||
701 | dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR, | |
702 | dnl unless already present in VAR. | |
703 | dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes | |
704 | dnl contains two or three consecutive elements that belong together. | |
705 | AC_DEFUN([AC_LIB_APPENDTOVAR], | |
706 | [ | |
707 | for element in [$2]; do | |
708 | haveit= | |
709 | for x in $[$1]; do | |
710 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
711 | if test "X$x" = "X$element"; then | |
712 | haveit=yes | |
713 | break | |
714 | fi | |
715 | done | |
716 | if test -z "$haveit"; then | |
717 | [$1]="${[$1]}${[$1]:+ }$element" | |
718 | fi | |
719 | done | |
720 | ]) | |
721 | ||
722 | dnl For those cases where a variable contains several -L and -l options | |
723 | dnl referring to unknown libraries and directories, this macro determines the | |
724 | dnl necessary additional linker options for the runtime path. | |
725 | dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL]) | |
726 | dnl sets LDADDVAR to linker options needed together with LIBSVALUE. | |
727 | dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed, | |
728 | dnl otherwise linking without libtool is assumed. | |
729 | AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], | |
730 | [ | |
731 | AC_REQUIRE([AC_LIB_RPATH]) | |
732 | AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) | |
733 | $1= | |
734 | if test "$enable_rpath" != no; then | |
735 | if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then | |
736 | dnl Use an explicit option to hardcode directories into the resulting | |
737 | dnl binary. | |
738 | rpathdirs= | |
739 | next= | |
740 | for opt in $2; do | |
741 | if test -n "$next"; then | |
742 | dir="$next" | |
743 | dnl No need to hardcode the standard /usr/lib. | |
744 | if test "X$dir" != "X/usr/$acl_libdirstem" \ | |
c0c3707f CB |
745 | && test "X$dir" != "X/usr/$acl_libdirstem2" \ |
746 | && test "X$dir" != "X/usr/$acl_libdirstem3"; then | |
5abebf3c CB |
747 | rpathdirs="$rpathdirs $dir" |
748 | fi | |
749 | next= | |
750 | else | |
751 | case $opt in | |
752 | -L) next=yes ;; | |
753 | -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` | |
754 | dnl No need to hardcode the standard /usr/lib. | |
755 | if test "X$dir" != "X/usr/$acl_libdirstem" \ | |
c0c3707f CB |
756 | && test "X$dir" != "X/usr/$acl_libdirstem2" \ |
757 | && test "X$dir" != "X/usr/$acl_libdirstem3"; then | |
5abebf3c CB |
758 | rpathdirs="$rpathdirs $dir" |
759 | fi | |
760 | next= ;; | |
761 | *) next= ;; | |
762 | esac | |
763 | fi | |
764 | done | |
765 | if test "X$rpathdirs" != "X"; then | |
766 | if test -n ""$3""; then | |
767 | dnl libtool is used for linking. Use -R options. | |
768 | for dir in $rpathdirs; do | |
769 | $1="${$1}${$1:+ }-R$dir" | |
770 | done | |
771 | else | |
772 | dnl The linker is used for linking directly. | |
773 | if test -n "$acl_hardcode_libdir_separator"; then | |
774 | dnl Weird platform: only the last -rpath option counts, the user | |
775 | dnl must pass all path elements in one option. | |
776 | alldirs= | |
777 | for dir in $rpathdirs; do | |
778 | alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" | |
779 | done | |
780 | acl_save_libdir="$libdir" | |
781 | libdir="$alldirs" | |
782 | eval flag=\"$acl_hardcode_libdir_flag_spec\" | |
783 | libdir="$acl_save_libdir" | |
784 | $1="$flag" | |
785 | else | |
786 | dnl The -rpath options are cumulative. | |
787 | for dir in $rpathdirs; do | |
788 | acl_save_libdir="$libdir" | |
789 | libdir="$dir" | |
790 | eval flag=\"$acl_hardcode_libdir_flag_spec\" | |
791 | libdir="$acl_save_libdir" | |
792 | $1="${$1}${$1:+ }$flag" | |
793 | done | |
794 | fi | |
795 | fi | |
796 | fi | |
797 | fi | |
798 | fi | |
799 | AC_SUBST([$1]) | |
800 | ]) |