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1 | # lib-link.m4 serial 28 |
2 | dnl Copyright (C) 2001-2019 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([2.61]) | |
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 $INC[]NAME to CPPFLAGS before performing the following checks, | |
540493ba MA |
70 | dnl so that if lib[]Name is installed, it will be used (unless |
71 | dnl disabled via --without-lib[]Name-prefix). | |
e8864b1b RK |
72 | ac_save_CPPFLAGS="$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 Complain if config.rpath is missing. | |
128 | 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 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=\"$libdir\" | |
195 | ]) | |
196 | AC_ARG_WITH(PACK[-prefix], | |
197 | [[ --with-]]PACK[[-prefix[=DIR] search for ]PACKLIBS[ in DIR/include and DIR/lib | |
198 | --without-]]PACK[[-prefix don't search for ]PACKLIBS[ in includedir and libdir]], | |
199 | [ | |
200 | if test "X$withval" = "Xno"; then | |
201 | use_additional=no | |
202 | else | |
203 | if test "X$withval" = "X"; then | |
204 | AC_LIB_WITH_FINAL_PREFIX([ | |
205 | eval additional_includedir=\"$includedir\" | |
206 | eval additional_libdir=\"$libdir\" | |
207 | ]) | |
208 | else | |
209 | additional_includedir="$withval/include" | |
210 | additional_libdir="$withval/$acl_libdirstem" | |
211 | if test "$acl_libdirstem2" != "$acl_libdirstem" \ | |
212 | && test ! -d "$withval/$acl_libdirstem"; then | |
213 | additional_libdir="$withval/$acl_libdirstem2" | |
214 | fi | |
215 | fi | |
216 | fi | |
217 | ]) | |
218 | dnl Search the library and its dependencies in $additional_libdir and | |
2b96f774 | 219 | dnl $LDFLAGS. Using breadth-first-search. |
e8864b1b RK |
220 | LIB[]NAME= |
221 | LTLIB[]NAME= | |
222 | INC[]NAME= | |
223 | LIB[]NAME[]_PREFIX= | |
224 | dnl HAVE_LIB${NAME} is an indicator that LIB${NAME}, LTLIB${NAME} have been | |
225 | dnl computed. So it has to be reset here. | |
226 | HAVE_LIB[]NAME= | |
227 | rpathdirs= | |
228 | ltrpathdirs= | |
229 | names_already_handled= | |
230 | names_next_round='$1 $2' | |
231 | while test -n "$names_next_round"; do | |
232 | names_this_round="$names_next_round" | |
233 | names_next_round= | |
234 | for name in $names_this_round; do | |
235 | already_handled= | |
236 | for n in $names_already_handled; do | |
237 | if test "$n" = "$name"; then | |
238 | already_handled=yes | |
239 | break | |
240 | fi | |
241 | done | |
242 | if test -z "$already_handled"; then | |
243 | names_already_handled="$names_already_handled $name" | |
244 | dnl See if it was already located by an earlier AC_LIB_LINKFLAGS | |
245 | dnl or AC_LIB_HAVE_LINKFLAGS call. | |
246 | uppername=`echo "$name" | sed -e 'y|abcdefghijklmnopqrstuvwxyz./+-|ABCDEFGHIJKLMNOPQRSTUVWXYZ____|'` | |
247 | eval value=\"\$HAVE_LIB$uppername\" | |
248 | if test -n "$value"; then | |
249 | if test "$value" = yes; then | |
250 | eval value=\"\$LIB$uppername\" | |
251 | test -z "$value" || LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$value" | |
252 | eval value=\"\$LTLIB$uppername\" | |
253 | test -z "$value" || LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$value" | |
254 | else | |
255 | dnl An earlier call to AC_LIB_HAVE_LINKFLAGS has determined | |
256 | dnl that this library doesn't exist. So just drop it. | |
257 | : | |
258 | fi | |
259 | else | |
260 | dnl Search the library lib$name in $additional_libdir and $LDFLAGS | |
261 | dnl and the already constructed $LIBNAME/$LTLIBNAME. | |
262 | found_dir= | |
263 | found_la= | |
264 | found_so= | |
265 | found_a= | |
266 | eval libname=\"$acl_libname_spec\" # typically: libname=lib$name | |
267 | if test -n "$acl_shlibext"; then | |
268 | shrext=".$acl_shlibext" # typically: shrext=.so | |
269 | else | |
270 | shrext= | |
271 | fi | |
272 | if test $use_additional = yes; then | |
273 | dir="$additional_libdir" | |
274 | dnl The same code as in the loop below: | |
275 | dnl First look for a shared library. | |
276 | if test -n "$acl_shlibext"; then | |
277 | if test -f "$dir/$libname$shrext"; then | |
278 | found_dir="$dir" | |
279 | found_so="$dir/$libname$shrext" | |
280 | else | |
281 | if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then | |
282 | ver=`(cd "$dir" && \ | |
283 | for f in "$libname$shrext".*; do echo "$f"; done \ | |
284 | | sed -e "s,^$libname$shrext\\\\.,," \ | |
285 | | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ | |
286 | | sed 1q ) 2>/dev/null` | |
287 | if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then | |
288 | found_dir="$dir" | |
289 | found_so="$dir/$libname$shrext.$ver" | |
290 | fi | |
291 | else | |
292 | eval library_names=\"$acl_library_names_spec\" | |
293 | for f in $library_names; do | |
294 | if test -f "$dir/$f"; then | |
295 | found_dir="$dir" | |
296 | found_so="$dir/$f" | |
297 | break | |
298 | fi | |
299 | done | |
300 | fi | |
301 | fi | |
302 | fi | |
303 | dnl Then look for a static library. | |
304 | if test "X$found_dir" = "X"; then | |
305 | if test -f "$dir/$libname.$acl_libext"; then | |
306 | found_dir="$dir" | |
307 | found_a="$dir/$libname.$acl_libext" | |
308 | fi | |
309 | fi | |
310 | if test "X$found_dir" != "X"; then | |
311 | if test -f "$dir/$libname.la"; then | |
312 | found_la="$dir/$libname.la" | |
313 | fi | |
314 | fi | |
315 | fi | |
316 | if test "X$found_dir" = "X"; then | |
317 | for x in $LDFLAGS $LTLIB[]NAME; do | |
318 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
319 | case "$x" in | |
320 | -L*) | |
321 | dir=`echo "X$x" | sed -e 's/^X-L//'` | |
322 | dnl First look for a shared library. | |
323 | if test -n "$acl_shlibext"; then | |
324 | if test -f "$dir/$libname$shrext"; then | |
325 | found_dir="$dir" | |
326 | found_so="$dir/$libname$shrext" | |
327 | else | |
328 | if test "$acl_library_names_spec" = '$libname$shrext$versuffix'; then | |
329 | ver=`(cd "$dir" && \ | |
330 | for f in "$libname$shrext".*; do echo "$f"; done \ | |
331 | | sed -e "s,^$libname$shrext\\\\.,," \ | |
332 | | sort -t '.' -n -r -k1,1 -k2,2 -k3,3 -k4,4 -k5,5 \ | |
333 | | sed 1q ) 2>/dev/null` | |
334 | if test -n "$ver" && test -f "$dir/$libname$shrext.$ver"; then | |
335 | found_dir="$dir" | |
336 | found_so="$dir/$libname$shrext.$ver" | |
337 | fi | |
338 | else | |
339 | eval library_names=\"$acl_library_names_spec\" | |
340 | for f in $library_names; do | |
341 | if test -f "$dir/$f"; then | |
342 | found_dir="$dir" | |
343 | found_so="$dir/$f" | |
344 | break | |
345 | fi | |
346 | done | |
347 | fi | |
348 | fi | |
349 | fi | |
350 | dnl Then look for a static library. | |
351 | if test "X$found_dir" = "X"; then | |
352 | if test -f "$dir/$libname.$acl_libext"; then | |
353 | found_dir="$dir" | |
354 | found_a="$dir/$libname.$acl_libext" | |
355 | fi | |
356 | fi | |
357 | if test "X$found_dir" != "X"; then | |
358 | if test -f "$dir/$libname.la"; then | |
359 | found_la="$dir/$libname.la" | |
360 | fi | |
361 | fi | |
362 | ;; | |
363 | esac | |
364 | if test "X$found_dir" != "X"; then | |
365 | break | |
366 | fi | |
367 | done | |
368 | fi | |
369 | if test "X$found_dir" != "X"; then | |
370 | dnl Found the library. | |
371 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$found_dir -l$name" | |
372 | if test "X$found_so" != "X"; then | |
373 | dnl Linking with a shared library. We attempt to hardcode its | |
374 | dnl directory into the executable's runpath, unless it's the | |
375 | dnl standard /usr/lib. | |
376 | if test "$enable_rpath" = no \ | |
377 | || test "X$found_dir" = "X/usr/$acl_libdirstem" \ | |
378 | || test "X$found_dir" = "X/usr/$acl_libdirstem2"; then | |
379 | dnl No hardcoding is needed. | |
380 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" | |
381 | else | |
382 | dnl Use an explicit option to hardcode DIR into the resulting | |
383 | dnl binary. | |
384 | dnl Potentially add DIR to ltrpathdirs. | |
385 | dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. | |
386 | haveit= | |
387 | for x in $ltrpathdirs; do | |
388 | if test "X$x" = "X$found_dir"; then | |
389 | haveit=yes | |
390 | break | |
391 | fi | |
392 | done | |
393 | if test -z "$haveit"; then | |
394 | ltrpathdirs="$ltrpathdirs $found_dir" | |
395 | fi | |
396 | dnl The hardcoding into $LIBNAME is system dependent. | |
397 | if test "$acl_hardcode_direct" = yes; then | |
398 | dnl Using DIR/libNAME.so during linking hardcodes DIR into the | |
399 | dnl resulting binary. | |
400 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" | |
401 | else | |
402 | if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then | |
403 | dnl Use an explicit option to hardcode DIR into the resulting | |
404 | dnl binary. | |
405 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" | |
406 | dnl Potentially add DIR to rpathdirs. | |
407 | dnl The rpathdirs will be appended to $LIBNAME at the end. | |
408 | haveit= | |
409 | for x in $rpathdirs; do | |
410 | if test "X$x" = "X$found_dir"; then | |
411 | haveit=yes | |
412 | break | |
413 | fi | |
414 | done | |
415 | if test -z "$haveit"; then | |
416 | rpathdirs="$rpathdirs $found_dir" | |
417 | fi | |
418 | else | |
419 | dnl Rely on "-L$found_dir". | |
420 | dnl But don't add it if it's already contained in the LDFLAGS | |
421 | dnl or the already constructed $LIBNAME | |
422 | haveit= | |
423 | for x in $LDFLAGS $LIB[]NAME; do | |
424 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
425 | if test "X$x" = "X-L$found_dir"; then | |
426 | haveit=yes | |
427 | break | |
428 | fi | |
429 | done | |
430 | if test -z "$haveit"; then | |
431 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir" | |
432 | fi | |
433 | if test "$acl_hardcode_minus_L" != no; then | |
434 | dnl FIXME: Not sure whether we should use | |
435 | dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" | |
436 | dnl here. | |
437 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_so" | |
438 | else | |
439 | dnl We cannot use $acl_hardcode_runpath_var and LD_RUN_PATH | |
440 | dnl here, because this doesn't fit in flags passed to the | |
441 | dnl compiler. So give up. No hardcoding. This affects only | |
442 | dnl very old systems. | |
443 | dnl FIXME: Not sure whether we should use | |
444 | dnl "-L$found_dir -l$name" or "-L$found_dir $found_so" | |
445 | dnl here. | |
446 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" | |
447 | fi | |
448 | fi | |
449 | fi | |
450 | fi | |
451 | else | |
452 | if test "X$found_a" != "X"; then | |
453 | dnl Linking with a static library. | |
454 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$found_a" | |
455 | else | |
456 | dnl We shouldn't come here, but anyway it's good to have a | |
457 | dnl fallback. | |
458 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$found_dir -l$name" | |
459 | fi | |
460 | fi | |
461 | dnl Assume the include files are nearby. | |
462 | additional_includedir= | |
463 | case "$found_dir" in | |
464 | */$acl_libdirstem | */$acl_libdirstem/) | |
465 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem/"'*$,,'` | |
466 | if test "$name" = '$1'; then | |
467 | LIB[]NAME[]_PREFIX="$basedir" | |
468 | fi | |
469 | additional_includedir="$basedir/include" | |
470 | ;; | |
471 | */$acl_libdirstem2 | */$acl_libdirstem2/) | |
472 | basedir=`echo "X$found_dir" | sed -e 's,^X,,' -e "s,/$acl_libdirstem2/"'*$,,'` | |
473 | if test "$name" = '$1'; then | |
474 | LIB[]NAME[]_PREFIX="$basedir" | |
475 | fi | |
476 | additional_includedir="$basedir/include" | |
477 | ;; | |
478 | esac | |
479 | if test "X$additional_includedir" != "X"; then | |
480 | dnl Potentially add $additional_includedir to $INCNAME. | |
481 | dnl But don't add it | |
482 | dnl 1. if it's the standard /usr/include, | |
483 | dnl 2. if it's /usr/local/include and we are using GCC on Linux, | |
484 | dnl 3. if it's already present in $CPPFLAGS or the already | |
485 | dnl constructed $INCNAME, | |
486 | dnl 4. if it doesn't exist as a directory. | |
487 | if test "X$additional_includedir" != "X/usr/include"; then | |
488 | haveit= | |
489 | if test "X$additional_includedir" = "X/usr/local/include"; then | |
490 | if test -n "$GCC"; then | |
491 | case $host_os in | |
492 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; | |
493 | esac | |
494 | fi | |
495 | fi | |
496 | if test -z "$haveit"; then | |
497 | for x in $CPPFLAGS $INC[]NAME; do | |
498 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
499 | if test "X$x" = "X-I$additional_includedir"; then | |
500 | haveit=yes | |
501 | break | |
502 | fi | |
503 | done | |
504 | if test -z "$haveit"; then | |
505 | if test -d "$additional_includedir"; then | |
506 | dnl Really add $additional_includedir to $INCNAME. | |
507 | INC[]NAME="${INC[]NAME}${INC[]NAME:+ }-I$additional_includedir" | |
508 | fi | |
509 | fi | |
510 | fi | |
511 | fi | |
512 | fi | |
513 | dnl Look for dependencies. | |
514 | if test -n "$found_la"; then | |
515 | dnl Read the .la file. It defines the variables | |
516 | dnl dlname, library_names, old_library, dependency_libs, current, | |
517 | dnl age, revision, installed, dlopen, dlpreopen, libdir. | |
518 | save_libdir="$libdir" | |
519 | case "$found_la" in | |
520 | */* | *\\*) . "$found_la" ;; | |
521 | *) . "./$found_la" ;; | |
522 | esac | |
523 | libdir="$save_libdir" | |
524 | dnl We use only dependency_libs. | |
525 | for dep in $dependency_libs; do | |
526 | case "$dep" in | |
527 | -L*) | |
528 | additional_libdir=`echo "X$dep" | sed -e 's/^X-L//'` | |
529 | dnl Potentially add $additional_libdir to $LIBNAME and $LTLIBNAME. | |
530 | dnl But don't add it | |
531 | dnl 1. if it's the standard /usr/lib, | |
532 | dnl 2. if it's /usr/local/lib and we are using GCC on Linux, | |
533 | dnl 3. if it's already present in $LDFLAGS or the already | |
534 | dnl constructed $LIBNAME, | |
535 | dnl 4. if it doesn't exist as a directory. | |
536 | if test "X$additional_libdir" != "X/usr/$acl_libdirstem" \ | |
537 | && test "X$additional_libdir" != "X/usr/$acl_libdirstem2"; then | |
538 | haveit= | |
539 | if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem" \ | |
540 | || test "X$additional_libdir" = "X/usr/local/$acl_libdirstem2"; then | |
541 | if test -n "$GCC"; then | |
542 | case $host_os in | |
543 | linux* | gnu* | k*bsd*-gnu) haveit=yes;; | |
544 | esac | |
545 | fi | |
546 | fi | |
547 | if test -z "$haveit"; then | |
548 | haveit= | |
549 | for x in $LDFLAGS $LIB[]NAME; do | |
550 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
551 | if test "X$x" = "X-L$additional_libdir"; then | |
552 | haveit=yes | |
553 | break | |
554 | fi | |
555 | done | |
556 | if test -z "$haveit"; then | |
557 | if test -d "$additional_libdir"; then | |
558 | dnl Really add $additional_libdir to $LIBNAME. | |
559 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-L$additional_libdir" | |
560 | fi | |
561 | fi | |
562 | haveit= | |
563 | for x in $LDFLAGS $LTLIB[]NAME; do | |
564 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
565 | if test "X$x" = "X-L$additional_libdir"; then | |
566 | haveit=yes | |
567 | break | |
568 | fi | |
569 | done | |
570 | if test -z "$haveit"; then | |
571 | if test -d "$additional_libdir"; then | |
572 | dnl Really add $additional_libdir to $LTLIBNAME. | |
573 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-L$additional_libdir" | |
574 | fi | |
575 | fi | |
576 | fi | |
577 | fi | |
578 | ;; | |
579 | -R*) | |
580 | dir=`echo "X$dep" | sed -e 's/^X-R//'` | |
581 | if test "$enable_rpath" != no; then | |
582 | dnl Potentially add DIR to rpathdirs. | |
583 | dnl The rpathdirs will be appended to $LIBNAME at the end. | |
584 | haveit= | |
585 | for x in $rpathdirs; do | |
586 | if test "X$x" = "X$dir"; then | |
587 | haveit=yes | |
588 | break | |
589 | fi | |
590 | done | |
591 | if test -z "$haveit"; then | |
592 | rpathdirs="$rpathdirs $dir" | |
593 | fi | |
594 | dnl Potentially add DIR to ltrpathdirs. | |
595 | dnl The ltrpathdirs will be appended to $LTLIBNAME at the end. | |
596 | haveit= | |
597 | for x in $ltrpathdirs; do | |
598 | if test "X$x" = "X$dir"; then | |
599 | haveit=yes | |
600 | break | |
601 | fi | |
602 | done | |
603 | if test -z "$haveit"; then | |
604 | ltrpathdirs="$ltrpathdirs $dir" | |
605 | fi | |
606 | fi | |
607 | ;; | |
608 | -l*) | |
609 | dnl Handle this in the next round. | |
610 | names_next_round="$names_next_round "`echo "X$dep" | sed -e 's/^X-l//'` | |
611 | ;; | |
612 | *.la) | |
613 | dnl Handle this in the next round. Throw away the .la's | |
614 | dnl directory; it is already contained in a preceding -L | |
615 | dnl option. | |
616 | names_next_round="$names_next_round "`echo "X$dep" | sed -e 's,^X.*/,,' -e 's,^lib,,' -e 's,\.la$,,'` | |
617 | ;; | |
618 | *) | |
619 | dnl Most likely an immediate library name. | |
620 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$dep" | |
621 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }$dep" | |
622 | ;; | |
623 | esac | |
624 | done | |
625 | fi | |
626 | else | |
627 | dnl Didn't find the library; assume it is in the system directories | |
628 | dnl known to the linker and runtime loader. (All the system | |
629 | dnl directories known to the linker should also be known to the | |
630 | dnl runtime loader, otherwise the system is severely misconfigured.) | |
631 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }-l$name" | |
632 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-l$name" | |
633 | fi | |
634 | fi | |
635 | fi | |
636 | done | |
637 | done | |
638 | if test "X$rpathdirs" != "X"; then | |
639 | if test -n "$acl_hardcode_libdir_separator"; then | |
640 | dnl Weird platform: only the last -rpath option counts, the user must | |
641 | dnl pass all path elements in one option. We can arrange that for a | |
642 | dnl single library, but not when more than one $LIBNAMEs are used. | |
643 | alldirs= | |
644 | for found_dir in $rpathdirs; do | |
645 | alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$found_dir" | |
646 | done | |
647 | dnl Note: acl_hardcode_libdir_flag_spec uses $libdir and $wl. | |
648 | acl_save_libdir="$libdir" | |
649 | libdir="$alldirs" | |
650 | eval flag=\"$acl_hardcode_libdir_flag_spec\" | |
651 | libdir="$acl_save_libdir" | |
652 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" | |
653 | else | |
654 | dnl The -rpath options are cumulative. | |
655 | for found_dir in $rpathdirs; do | |
656 | acl_save_libdir="$libdir" | |
657 | libdir="$found_dir" | |
658 | eval flag=\"$acl_hardcode_libdir_flag_spec\" | |
659 | libdir="$acl_save_libdir" | |
660 | LIB[]NAME="${LIB[]NAME}${LIB[]NAME:+ }$flag" | |
661 | done | |
662 | fi | |
663 | fi | |
664 | if test "X$ltrpathdirs" != "X"; then | |
665 | dnl When using libtool, the option that works for both libraries and | |
666 | dnl executables is -R. The -R options are cumulative. | |
667 | for found_dir in $ltrpathdirs; do | |
668 | LTLIB[]NAME="${LTLIB[]NAME}${LTLIB[]NAME:+ }-R$found_dir" | |
669 | done | |
670 | fi | |
671 | popdef([PACKLIBS]) | |
672 | popdef([PACKUP]) | |
673 | popdef([PACK]) | |
674 | popdef([NAME]) | |
675 | ]) | |
676 | ||
677 | dnl AC_LIB_APPENDTOVAR(VAR, CONTENTS) appends the elements of CONTENTS to VAR, | |
678 | dnl unless already present in VAR. | |
679 | dnl Works only for CPPFLAGS, not for LIB* variables because that sometimes | |
680 | dnl contains two or three consecutive elements that belong together. | |
681 | AC_DEFUN([AC_LIB_APPENDTOVAR], | |
682 | [ | |
683 | for element in [$2]; do | |
684 | haveit= | |
685 | for x in $[$1]; do | |
686 | AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"]) | |
687 | if test "X$x" = "X$element"; then | |
688 | haveit=yes | |
689 | break | |
690 | fi | |
691 | done | |
692 | if test -z "$haveit"; then | |
693 | [$1]="${[$1]}${[$1]:+ }$element" | |
694 | fi | |
695 | done | |
696 | ]) | |
697 | ||
698 | dnl For those cases where a variable contains several -L and -l options | |
699 | dnl referring to unknown libraries and directories, this macro determines the | |
700 | dnl necessary additional linker options for the runtime path. | |
701 | dnl AC_LIB_LINKFLAGS_FROM_LIBS([LDADDVAR], [LIBSVALUE], [USE-LIBTOOL]) | |
702 | dnl sets LDADDVAR to linker options needed together with LIBSVALUE. | |
703 | dnl If USE-LIBTOOL evaluates to non-empty, linking with libtool is assumed, | |
704 | dnl otherwise linking without libtool is assumed. | |
705 | AC_DEFUN([AC_LIB_LINKFLAGS_FROM_LIBS], | |
706 | [ | |
707 | AC_REQUIRE([AC_LIB_RPATH]) | |
708 | AC_REQUIRE([AC_LIB_PREPARE_MULTILIB]) | |
709 | $1= | |
710 | if test "$enable_rpath" != no; then | |
711 | if test -n "$acl_hardcode_libdir_flag_spec" && test "$acl_hardcode_minus_L" = no; then | |
712 | dnl Use an explicit option to hardcode directories into the resulting | |
713 | dnl binary. | |
714 | rpathdirs= | |
715 | next= | |
716 | for opt in $2; do | |
717 | if test -n "$next"; then | |
718 | dir="$next" | |
719 | dnl No need to hardcode the standard /usr/lib. | |
720 | if test "X$dir" != "X/usr/$acl_libdirstem" \ | |
721 | && test "X$dir" != "X/usr/$acl_libdirstem2"; then | |
722 | rpathdirs="$rpathdirs $dir" | |
723 | fi | |
724 | next= | |
725 | else | |
726 | case $opt in | |
727 | -L) next=yes ;; | |
728 | -L*) dir=`echo "X$opt" | sed -e 's,^X-L,,'` | |
729 | dnl No need to hardcode the standard /usr/lib. | |
730 | if test "X$dir" != "X/usr/$acl_libdirstem" \ | |
731 | && test "X$dir" != "X/usr/$acl_libdirstem2"; then | |
732 | rpathdirs="$rpathdirs $dir" | |
733 | fi | |
734 | next= ;; | |
735 | *) next= ;; | |
736 | esac | |
737 | fi | |
738 | done | |
739 | if test "X$rpathdirs" != "X"; then | |
740 | if test -n ""$3""; then | |
741 | dnl libtool is used for linking. Use -R options. | |
742 | for dir in $rpathdirs; do | |
743 | $1="${$1}${$1:+ }-R$dir" | |
744 | done | |
745 | else | |
746 | dnl The linker is used for linking directly. | |
747 | if test -n "$acl_hardcode_libdir_separator"; then | |
748 | dnl Weird platform: only the last -rpath option counts, the user | |
749 | dnl must pass all path elements in one option. | |
750 | alldirs= | |
751 | for dir in $rpathdirs; do | |
752 | alldirs="${alldirs}${alldirs:+$acl_hardcode_libdir_separator}$dir" | |
753 | done | |
754 | acl_save_libdir="$libdir" | |
755 | libdir="$alldirs" | |
756 | eval flag=\"$acl_hardcode_libdir_flag_spec\" | |
757 | libdir="$acl_save_libdir" | |
758 | $1="$flag" | |
759 | else | |
760 | dnl The -rpath options are cumulative. | |
761 | for dir in $rpathdirs; do | |
762 | acl_save_libdir="$libdir" | |
763 | libdir="$dir" | |
764 | eval flag=\"$acl_hardcode_libdir_flag_spec\" | |
765 | libdir="$acl_save_libdir" | |
766 | $1="${$1}${$1:+ }$flag" | |
767 | done | |
768 | fi | |
769 | fi | |
770 | fi | |
771 | fi | |
772 | fi | |
773 | AC_SUBST([$1]) | |
774 | ]) |