25f5bd4f |
1 | # lib-link.m4 serial 26 (gettext-0.18.2) |
2 | dnl Copyright (C) 2001-2014 Free Software Foundation, Inc. |
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 | |
9 | AC_PREREQ([2.54]) |
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 | [ |
127 | dnl Tell automake >= 1.10 to complain if config.rpath is missing. |
128 | m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([config.rpath])]) |
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])]) |
190 | dnl Autoconf >= 2.61 supports dots in --with options. |
191 | pushdef([P_A_C_K],[m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.61]),[-1],[m4_translit(PACK,[.],[_])],PACK)]) |
192 | dnl By default, look in $includedir and $libdir. |
193 | use_additional=yes |
194 | AC_LIB_WITH_FINAL_PREFIX([ |
195 | eval additional_includedir=\"$includedir\" |
196 | eval additional_libdir=\"$libdir\" |
197 | ]) |
198 | AC_ARG_WITH(P_A_C_K[-prefix], |
199 | [[ --with-]]P_A_C_K[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib |
200 | --without-]]P_A_C_K[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], |
201 | [ |
202 | if test "X$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=\"$libdir\" |
209 | ]) |
210 | else |
211 | additional_includedir="$withval/include" |
212 | additional_libdir="$withval/$acl_libdirstem" |
213 | if test "$acl_libdirstem2" != "$acl_libdirstem" \ |
214 | && ! test -d "$withval/$acl_libdirstem"; then |
215 | additional_libdir="$withval/$acl_libdirstem2" |
216 | fi |
217 | fi |
218 | fi |
219 | ]) |
220 | dnl Search the library and its dependencies in $additional_libdir and |
221 | dnl $LDFLAGS. Using breadth-first-seach. |
222 | LIB[]NAME= |
223 | LTLIB[]NAME= |
224 | INC[]NAME= |
225 | LIB[]NAME[]_PREFIX= |
226 | dnl HAVE_LIB${NAME} is an indicator that LIB${NAME}, LTLIB${NAME} have been |
227 | dnl computed. So it has to be reset here. |
228 | HAVE_LIB[]NAME= |
229 | rpathdirs= |
230 | ltrpathdirs= |
231 | names_already_handled= |
232 | names_next_round='$1 $2' |
233 | while test -n "$names_next_round"; do |
234 | names_this_round="$names_next_round" |
235 | names_next_round= |
236 | for name in $names_this_round; do |
237 | already_handled= |
238 | for n in $names_already_handled; do |
239 | if test "$n" = "$name"; then |
240 | already_handled=yes |
241 | break |
242 | fi |
243 | done |
244 | if test -z "$already_handled"; then |
245 | names_already_handled="$names_already_handled $name" |
246 | dnl See if it was already located by an earlier AC_LIB_LINKFLAGS |
247 | dnl or AC_LIB_HAVE_LINKFLAGS call. |
248 | uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'` |
249 | eval value=\"\$HAVE_LIB$uppername\" |
250 | if test -n "$value"; then |
251 | if test "$value" = yes; then |
252 | eval value=\"\$LIB$uppername\" |
253 | test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value" |
254 | eval value=\"\$LTLIB$uppername\" |
255 | test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value" |
256 | else |
257 | dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined |
258 | dnl that this library doesn't exist. So just drop it. |
259 | : |
260 | fi |
261 | else |
262 | dnl Search the library lib$name in $additional_libdir and $LDFLAGS |
263 | dnl and the already constructed $LIBNAME/$LTLIBNAME. |
264 | found_dir= |
265 | found_la= |
266 | found_so= |
267 | found_a= |
268 | eval libname=\"$acl_libname_spec\" # typically: libname=lib$name |
269 | if test -n "$acl_shlibext"; then |
270 | shrext=".$acl_shlibext" # typically: shrext=.so |
271 | else |
272 | shrext= |
273 | fi |
274 | if test $use_additional = yes; then |
275 | dir="$additional_libdir" |
276 | dnl The same code as in the loop below: |
277 | dnl First look for a shared library. |
278 | if test -n "$acl_shlibext"; then |
279 | if test -f "$dir/$libname$shrext"; then |
280 | found_dir="$dir" |
281 | found_so="$dir/$libname$shrext" |
282 | else |
283 | if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then |
284 | ver=`(cd "$dir" && \ |
285 | for f in "$libname$shrext".*; do echo "$f"; done \ |
286 | | sed -e "s,^$libname$shrext\\\\.,," \ |
287 | | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ |
288 | | sed 1q ) 2>/dev/null` |
289 | if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then |
290 | found_dir="$dir" |
291 | found_so="$dir/$libname$shrext.$ver" |
292 | fi |
293 | else |
294 | eval library_names=\"$acl_library_names_spec\" |
295 | for f in $library_names; do |
296 | if test -f "$dir/$f"; then |
297 | found_dir="$dir" |
298 | found_so="$dir/$f" |
299 | break |
300 | fi |
301 | done |
302 | fi |
303 | fi |
304 | fi |
305 | dnl Then look for a static library. |
306 | if test "X$found_dir" = "X"; then |
307 | if test -f "$dir/$libname.$acl_libext"; then |
308 | found_dir="$dir" |
309 | found_a="$dir/$libname.$acl_libext" |
310 | fi |
311 | fi |
312 | if test "X$found_dir" != "X"; then |
313 | if test -f "$dir/$libname.la"; then |
314 | found_la="$dir/$libname.la" |
315 | fi |
316 | fi |
317 | fi |
318 | if test "X$found_dir" = "X"; then |
319 | for x in $LDFLAGS $LTLIB[]NAME; do |
320 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
321 | case "$x" in |
322 | -L*) |
323 | dir=`echo "X$x" | sed -e 's/^X-L//'` |
324 | dnl First look for a shared library. |
325 | if test -n "$acl_shlibext"; then |
326 | if test -f "$dir/$libname$shrext"; then |
327 | found_dir="$dir" |
328 | found_so="$dir/$libname$shrext" |
329 | else |
330 | if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then |
331 | ver=`(cd "$dir" && \ |
332 | for f in "$libname$shrext".*; do echo "$f"; done \ |
333 | | sed -e "s,^$libname$shrext\\\\.,," \ |
334 | | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ |
335 | | sed 1q ) 2>/dev/null` |
336 | if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then |
337 | found_dir="$dir" |
338 | found_so="$dir/$libname$shrext.$ver" |
339 | fi |
340 | else |
341 | eval library_names=\"$acl_library_names_spec\" |
342 | for f in $library_names; do |
343 | if test -f "$dir/$f"; then |
344 | found_dir="$dir" |
345 | found_so="$dir/$f" |
346 | break |
347 | fi |
348 | done |
349 | fi |
350 | fi |
351 | fi |
352 | dnl Then look for a static library. |
353 | if test "X$found_dir" = "X"; then |
354 | if test -f "$dir/$libname.$acl_libext"; then |
355 | found_dir="$dir" |
356 | found_a="$dir/$libname.$acl_libext" |
357 | fi |
358 | fi |
359 | if test "X$found_dir" != "X"; then |
360 | if test -f "$dir/$libname.la"; then |
361 | found_la="$dir/$libname.la" |
362 | fi |
363 | fi |
364 | ;; |
365 | esac |
366 | if test "X$found_dir" != "X"; then |
367 | break |
368 | fi |
369 | done |
370 | fi |
371 | if test "X$found_dir" != "X"; then |
372 | dnl Found the library. |
373 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name" |
374 | if test "X$found_so" != "X"; then |
375 | dnl Linking with a shared library. We attempt to hardcode its |
376 | dnl directory into the executable's runpath, unless it's the |
377 | dnl standard /usr/lib. |
378 | if test "$enable_rpath" = no \ |
379 | || test "X$found_dir" = "X/usr/$acl_libdirstem" \ |
380 | || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then |
381 | dnl No hardcoding is needed. |
382 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
383 | else |
384 | dnl Use an explicit option to hardcode DIR into the resulting |
385 | dnl binary. |
386 | dnl Potentially add DIR to ltrpathdirs. |
387 | dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. |
388 | haveit= |
389 | for x in $ltrpathdirs; do |
390 | if test "X$x" = "X$found_dir"; then |
391 | haveit=yes |
392 | break |
393 | fi |
394 | done |
395 | if test -z "$haveit"; then |
396 | ltrpathdirs="$ltrpathdirs $found_dir" |
397 | fi |
398 | dnl The hardcoding into $LIBNAME is system dependent. |
399 | if test "$acl_hardcode_direct" = yes; then |
400 | dnl Using DIR/libNAME.so during linking hardcodes DIR into the |
401 | dnl resulting binary. |
402 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
403 | else |
404 | if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then |
405 | dnl Use an explicit option to hardcode DIR into the resulting |
406 | dnl binary. |
407 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
408 | dnl Potentially add DIR to rpathdirs. |
409 | dnl The rpathdirs will be appended to $LIBNAME at the end. |
410 | haveit= |
411 | for x in $rpathdirs; do |
412 | if test "X$x" = "X$found_dir"; then |
413 | haveit=yes |
414 | break |
415 | fi |
416 | done |
417 | if test -z "$haveit"; then |
418 | rpathdirs="$rpathdirs $found_dir" |
419 | fi |
420 | else |
421 | dnl Rely on "-L$found_dir". |
422 | dnl But don't add it if it's already contained in the LDFLAGS |
423 | dnl or the already constructed $LIBNAME |
424 | haveit= |
425 | for x in $LDFLAGS $LIB[]NAME; do |
426 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
427 | if test "X$x" = "X-L$found_dir"; then |
428 | haveit=yes |
429 | break |
430 | fi |
431 | done |
432 | if test -z "$haveit"; then |
433 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" |
434 | fi |
435 | if test "$acl_hardcode_minus_L" != no; then |
436 | dnl FIXME: Not sure whether we should use |
437 | dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" |
438 | dnl here. |
439 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" |
440 | else |
441 | dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH |
442 | dnl here, because this doesn't fit in flags passed to the |
443 | dnl compiler. So give up. No hardcoding. This affects only |
444 | dnl very old systems. |
445 | dnl FIXME: Not sure whether we should use |
446 | dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" |
447 | dnl here. |
448 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" |
449 | fi |
450 | fi |
451 | fi |
452 | fi |
453 | else |
454 | if test "X$found_a" != "X"; then |
455 | dnl Linking with a static library. |
456 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a" |
457 | else |
458 | dnl We shouldn't come here, but anyway it's good to have a |
459 | dnl fallback. |
460 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name" |
461 | fi |
462 | fi |
463 | dnl Assume the include files are nearby. |
464 | additional_includedir= |
465 | case "$found_dir" in |
466 | */$acl_libdirstem | */$acl_libdirstem/) |
467 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'` |
468 | if test "$name" = '$1'; then |
469 | LIB[]NAME[]_PREFIX="$basedir" |
470 | fi |
471 | additional_includedir="$basedir/include" |
472 | ;; |
473 | */$acl_libdirstem2 | */$acl_libdirstem2/) |
474 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'` |
475 | if test "$name" = '$1'; then |
476 | LIB[]NAME[]_PREFIX="$basedir" |
477 | fi |
478 | additional_includedir="$basedir/include" |
479 | ;; |
480 | esac |
481 | if test "X$additional_includedir" != "X"; then |
482 | dnl Potentially add $additional_includedir to $INCNAME. |
483 | dnl But don't add it |
484 | dnl 1. if it's the standard /usr/include, |
485 | dnl 2. if it's /usr/local/include and we are using GCC on Linux, |
486 | dnl 3. if it's already present in $CPPFLAGS or the already |
487 | dnl constructed $INCNAME, |
488 | dnl 4. if it doesn't exist as a directory. |
489 | if test "X$additional_includedir" != "X/usr/include"; then |
490 | haveit= |
491 | if test "X$additional_includedir" = "X/usr/local/include"; then |
492 | if test -n "$GCC"; then |
493 | case $host_os in |
494 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
495 | esac |
496 | fi |
497 | fi |
498 | if test -z "$haveit"; then |
499 | for x in $CPPFLAGS $INC[]NAME; do |
500 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
501 | if test "X$x" = "X-I$additional_includedir"; then |
502 | haveit=yes |
503 | break |
504 | fi |
505 | done |
506 | if test -z "$haveit"; then |
507 | if test -d "$additional_includedir"; then |
508 | dnl Really add $additional_includedir to $INCNAME. |
509 | INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir" |
510 | fi |
511 | fi |
512 | fi |
513 | fi |
514 | fi |
515 | dnl Look for dependencies. |
516 | if test -n "$found_la"; then |
517 | dnl Read the .la file. It defines the variables |
518 | dnl dlname, library_names, old_library, dependency_libs, current, |
519 | dnl age, revision, installed, dlopen, dlpreopen, libdir. |
520 | save_libdir="$libdir" |
521 | case "$found_la" in |
522 | */* | *\\*) . "$found_la" ;; |
523 | *) . "./$found_la" ;; |
524 | esac |
525 | libdir="$save_libdir" |
526 | dnl We use only dependency_libs. |
527 | for dep in $dependency_libs; do |
528 | case "$dep" in |
529 | -L*) |
530 | additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` |
531 | dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. |
532 | dnl But don't add it |
533 | dnl 1. if it's the standard /usr/lib, |
534 | dnl 2. if it's /usr/local/lib and we are using GCC on Linux, |
535 | dnl 3. if it's already present in $LDFLAGS or the already |
536 | dnl constructed $LIBNAME, |
537 | dnl 4. if it doesn't exist as a directory. |
538 | if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \ |
539 | && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then |
540 | haveit= |
541 | if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \ |
542 | || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then |
543 | if test -n "$GCC"; then |
544 | case $host_os in |
545 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; |
546 | esac |
547 | fi |
548 | fi |
549 | if test -z "$haveit"; then |
550 | haveit= |
551 | for x in $LDFLAGS $LIB[]NAME; do |
552 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
553 | if test "X$x" = "X-L$additional_libdir"; then |
554 | haveit=yes |
555 | break |
556 | fi |
557 | done |
558 | if test -z "$haveit"; then |
559 | if test -d "$additional_libdir"; then |
560 | dnl Really add $additional_libdir to $LIBNAME. |
561 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" |
562 | fi |
563 | fi |
564 | haveit= |
565 | for x in $LDFLAGS $LTLIB[]NAME; do |
566 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
567 | if test "X$x" = "X-L$additional_libdir"; then |
568 | haveit=yes |
569 | break |
570 | fi |
571 | done |
572 | if test -z "$haveit"; then |
573 | if test -d "$additional_libdir"; then |
574 | dnl Really add $additional_libdir to $LTLIBNAME. |
575 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" |
576 | fi |
577 | fi |
578 | fi |
579 | fi |
580 | ;; |
581 | -R*) |
582 | dir=`echo "X$dep" | sed -e 's/^X-R//'` |
583 | if test "$enable_rpath" != no; then |
584 | dnl Potentially add DIR to rpathdirs. |
585 | dnl The rpathdirs will be appended to $LIBNAME at the end. |
586 | haveit= |
587 | for x in $rpathdirs; do |
588 | if test "X$x" = "X$dir"; then |
589 | haveit=yes |
590 | break |
591 | fi |
592 | done |
593 | if test -z "$haveit"; then |
594 | rpathdirs="$rpathdirs $dir" |
595 | fi |
596 | dnl Potentially add DIR to ltrpathdirs. |
597 | dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. |
598 | haveit= |
599 | for x in $ltrpathdirs; do |
600 | if test "X$x" = "X$dir"; then |
601 | haveit=yes |
602 | break |
603 | fi |
604 | done |
605 | if test -z "$haveit"; then |
606 | ltrpathdirs="$ltrpathdirs $dir" |
607 | fi |
608 | fi |
609 | ;; |
610 | -l*) |
611 | dnl Handle this in the next round. |
612 | names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` |
613 | ;; |
614 | *.la) |
615 | dnl Handle this in the next round. Throw away the .la's |
616 | dnl directory; it is already contained in a preceding -L |
617 | dnl option. |
618 | names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` |
619 | ;; |
620 | *) |
621 | dnl Most likely an immediate library name. |
622 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep" |
623 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep" |
624 | ;; |
625 | esac |
626 | done |
627 | fi |
628 | else |
629 | dnl Didn't find the library; assume it is in the system directories |
630 | dnl known to the linker and runtime loader. (All the system |
631 | dnl directories known to the linker should also be known to the |
632 | dnl runtime loader, otherwise the system is severely misconfigured.) |
633 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" |
634 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name" |
635 | fi |
636 | fi |
637 | fi |
638 | done |
639 | done |
640 | if test "X$rpathdirs" != "X"; then |
641 | if test -n "$acl_hardcode_libdir_separator"; then |
642 | dnl Weird platform: only the last -rpath option counts, the user must |
643 | dnl pass all path elements in one option. We can arrange that for a |
644 | dnl single library, but not when more than one $LIBNAMEs are used. |
645 | alldirs= |
646 | for found_dir in $rpathdirs; do |
647 | alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" |
648 | done |
649 | dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. |
650 | acl_save_libdir="$libdir" |
651 | libdir="$alldirs" |
652 | eval flag=\"$acl_hardcode_libdir_flag_spec\" |
653 | libdir="$acl_save_libdir" |
654 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" |
655 | else |
656 | dnl The -rpath options are cumulative. |
657 | for found_dir in $rpathdirs; do |
658 | acl_save_libdir="$libdir" |
659 | libdir="$found_dir" |
660 | eval flag=\"$acl_hardcode_libdir_flag_spec\" |
661 | libdir="$acl_save_libdir" |
662 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" |
663 | done |
664 | fi |
665 | fi |
666 | if test "X$ltrpathdirs" != "X"; then |
667 | dnl When using libtool, the option that works for both libraries and |
668 | dnl executables is -R. The -R options are cumulative. |
669 | for found_dir in $ltrpathdirs; do |
670 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" |
671 | done |
672 | fi |
673 | popdef([P_A_C_K]) |
674 | popdef([PACKLIBS]) |
675 | popdef([PACKUP]) |
676 | popdef([PACK]) |
677 | popdef([NAME]) |
678 | ]) |
679 | |
680 | dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR, |
681 | dnl unless already present in VAR. |
682 | dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes |
683 | dnl contains two or three consecutive elements that belong together. |
684 | AC_DEFUN([AC_LIB_APPENDTOVAR], |
685 | [ |
686 | for element in [$2]; do |
687 | haveit= |
688 | for x in $[$1]; do |
689 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) |
690 | if test "X$x" = "X$element"; then |
691 | haveit=yes |
692 | break |
693 | fi |
694 | done |
695 | if test -z "$haveit"; then |
696 | [$1]="${[$1]}${[$1]:+ }$element" |
697 | fi |
698 | done |
699 | ]) |
700 | |
701 | dnl For those cases where a variable contains several -L and -l options |
702 | dnl referring to unknown libraries and directories, this macro determines the |
703 | dnl necessary additional linker options for the runtime path. |
704 | dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL]) |
705 | dnl sets LDADDVAR to linker options needed together with LIBSVALUE. |
706 | dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed, |
707 | dnl otherwise linking without libtool is assumed. |
708 | AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], |
709 | [ |
710 | AC_REQUIRE([AC_LIB_RPATH]) |
711 | AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) |
712 | $1= |
713 | if test "$enable_rpath" != no; then |
714 | if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then |
715 | dnl Use an explicit option to hardcode directories into the resulting |
716 | dnl binary. |
717 | rpathdirs= |
718 | next= |
719 | for opt in $2; do |
720 | if test -n "$next"; then |
721 | dir="$next" |
722 | dnl No need to hardcode the standard /usr/lib. |
723 | if test "X$dir" != "X/usr/$acl_libdirstem" \ |
724 | && test "X$dir" != "X/usr/$acl_libdirstem2"; then |
725 | rpathdirs="$rpathdirs $dir" |
726 | fi |
727 | next= |
728 | else |
729 | case $opt in |
730 | -L) next=yes ;; |
731 | -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` |
732 | dnl No need to hardcode the standard /usr/lib. |
733 | if test "X$dir" != "X/usr/$acl_libdirstem" \ |
734 | && test "X$dir" != "X/usr/$acl_libdirstem2"; then |
735 | rpathdirs="$rpathdirs $dir" |
736 | fi |
737 | next= ;; |
738 | *) next= ;; |
739 | esac |
740 | fi |
741 | done |
742 | if test "X$rpathdirs" != "X"; then |
743 | if test -n ""$3""; then |
744 | dnl libtool is used for linking. Use -R options. |
745 | for dir in $rpathdirs; do |
746 | $1="${$1}${$1:+ }-R$dir" |
747 | done |
748 | else |
749 | dnl The linker is used for linking directly. |
750 | if test -n "$acl_hardcode_libdir_separator"; then |
751 | dnl Weird platform: only the last -rpath option counts, the user |
752 | dnl must pass all path elements in one option. |
753 | alldirs= |
754 | for dir in $rpathdirs; do |
755 | alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" |
756 | done |
757 | acl_save_libdir="$libdir" |
758 | libdir="$alldirs" |
759 | eval flag=\"$acl_hardcode_libdir_flag_spec\" |
760 | libdir="$acl_save_libdir" |
761 | $1="$flag" |
762 | else |
763 | dnl The -rpath options are cumulative. |
764 | for dir in $rpathdirs; do |
765 | acl_save_libdir="$libdir" |
766 | libdir="$dir" |
767 | eval flag=\"$acl_hardcode_libdir_flag_spec\" |
768 | libdir="$acl_save_libdir" |
769 | $1="${$1}${$1:+ }$flag" |
770 | done |
771 | fi |
772 | fi |
773 | fi |
774 | fi |
775 | fi |
776 | AC_SUBST([$1]) |
777 | ]) |