1 dnl Process this file with autoconf to produce a configure script.
2 dnl Configure input file for elfutils. -*-autoconf-*-
4 dnl Copyright (C) 1996-2018 Red Hat, Inc.
6 dnl This file is part of elfutils.
8 dnl This file is free software; you can redistribute it and/or modify
9 dnl it under the terms of the GNU General Public License as published by
10 dnl the Free Software Foundation; either version 3 of the License, or
11 dnl (at your option) any later version.
13 dnl elfutils is distributed in the hope that it will be useful, but
14 dnl WITHOUT ANY WARRANTY; without even the implied warranty of
15 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 dnl GNU General Public License for more details.
18 dnl You should have received a copy of the GNU General Public License
19 dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
20 AC_INIT([elfutils],[0.171],[https://sourceware.org/bugzilla],[elfutils],[http://elfutils.org/])
22 dnl Workaround for older autoconf < 2.64
23 m4_ifndef([AC_PACKAGE_URL],
24 [AC_DEFINE([PACKAGE_URL], ["http://elfutils.org/"],
25 [Define to home page for this package])
26 AC_SUBST([PACKAGE_URL], ["http://elfutils.org/"])])
28 # We want eu- as default program prefix if none was given by the user.
29 # But if the user explicitly provided --program-prefix="" then pretend
30 # it wasn't set at all (NONE). We want to test this really early before
31 # configure has a chance to use the value.
33 if test "x$program_prefix" = "xNONE"; then
34 AC_MSG_NOTICE([No --program-prefix given, using "eu-"])
36 elif test "x$program_prefix" = "x"; then
37 AC_MSG_NOTICE([Using no program-prefix])
41 AC_CONFIG_AUX_DIR([config])
42 AC_CONFIG_FILES([config/Makefile])
44 AC_COPYRIGHT([Copyright (C) 1996-2018 The elfutils developers.])
45 AC_PREREQ(2.63) dnl Minimum Autoconf version required.
47 dnl We use GNU make extensions; automake 1.10 defaults to -Wportability.
48 AM_INIT_AUTOMAKE([gnits 1.11 -Wno-portability dist-bzip2 no-dist-gzip parallel-tests])
51 AM_SILENT_RULES([yes])
53 AC_CONFIG_SRCDIR([libelf/libelf.h])
54 AC_CONFIG_FILES([Makefile])
55 AC_CONFIG_HEADERS([config.h])
57 AC_CONFIG_MACRO_DIR([m4])
58 AC_CONFIG_FILES([m4/Makefile])
60 dnl The RPM spec file. We substitute a few values in the file.
61 AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in])
66 AC_ARG_ENABLE(deterministic-archives,
67 [AS_HELP_STRING([--enable-deterministic-archives],
68 [ar and ranlib default to -D behavior])], [
69 if test "${enableval}" = no; then
70 default_ar_deterministic=false
72 default_ar_deterministic=true
73 fi], [default_ar_deterministic=false])
74 AC_DEFINE_UNQUOTED(DEFAULT_AR_DETERMINISTIC, $default_ar_deterministic,
75 [Should ar and ranlib use -D behavior by default?])
77 AC_ARG_ENABLE([thread-safety],
78 AS_HELP_STRING([--enable-thread-safety],
79 [enable thread safety of libraries EXPERIMENTAL]),
80 use_locks=$enableval, use_locks=no)
81 AM_CONDITIONAL(USE_LOCKS, test "$use_locks" = yes)
82 AS_IF([test "$use_locks" = yes], [AC_DEFINE(USE_LOCKS)])
83 AS_IF([test "$use_locks" = yes],
84 [AC_MSG_WARN([thread-safety is EXPERIMENTAL tests might fail.])])
86 AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.])
92 # Only available since automake 1.12
93 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
94 AC_CHECK_TOOL([READELF], [readelf])
95 AC_CHECK_TOOL([NM], [nm])
97 # We use -std=gnu99 but have explicit checks for some language constructs
98 # and GNU extensions since some compilers claim GNU99 support, but don't
99 # really support all language extensions. In particular we need
100 # Mixed Declarations and Code
101 # https://gcc.gnu.org/onlinedocs/gcc/Mixed-Declarations.html
103 # https://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html
104 # Arrays of Variable Length
105 # https://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html
106 AC_CACHE_CHECK([for gcc with GNU99 support], ac_cv_c99, [dnl
108 CFLAGS="$CFLAGS -std=gnu99"
109 AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
112 for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; return s;
115 double bar (double a, double b)
117 double square (double z) { return z * z; }
118 return square (a) + square (b);
123 struct S { int x[[n]]; };
125 ac_cv_c99=yes, ac_cv_c99=no)
126 CFLAGS="$old_CFLAGS"])
127 AS_IF([test "x$ac_cv_c99" != xyes],
128 AC_MSG_ERROR([gcc with GNU99 support required]))
130 AC_CACHE_CHECK([whether gcc supports __attribute__((visibility()))],
131 ac_cv_visibility, [dnl
132 save_CFLAGS="$CFLAGS"
133 CFLAGS="$save_CFLAGS -Werror"
134 AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
135 int __attribute__((visibility("hidden")))
139 }])], ac_cv_visibility=yes, ac_cv_visibility=no)
140 CFLAGS="$save_CFLAGS"])
141 if test "$ac_cv_visibility" = "yes"; then
142 AC_DEFINE([HAVE_VISIBILITY], [1],
143 [Defined if __attribute__((visibility())) is supported])
146 AC_CACHE_CHECK([whether gcc supports __attribute__((gcc_struct))],
147 ac_cv_gcc_struct, [dnl
148 save_CFLAGS="$CFLAGS"
149 CFLAGS="$save_CFLAGS -Werror"
150 AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
151 struct test { int x; } __attribute__((gcc_struct));
152 ])], ac_cv_gcc_struct=yes, ac_cv_gcc_struct=no)
153 CFLAGS="$save_CFLAGS"])
154 if test "$ac_cv_gcc_struct" = "yes"; then
155 AC_DEFINE([HAVE_GCC_STRUCT], [1],
156 [Defined if __attribute__((gcc_struct)) is supported])
159 AC_CACHE_CHECK([whether gcc supports -fPIC], ac_cv_fpic, [dnl
160 save_CFLAGS="$CFLAGS"
161 CFLAGS="$save_CFLAGS -fPIC -Werror"
162 AC_COMPILE_IFELSE([AC_LANG_SOURCE()], ac_cv_fpic=yes, ac_cv_fpic=no)
163 CFLAGS="$save_CFLAGS"
165 if test "$ac_cv_fpic" = "yes"; then
170 AC_SUBST([fpic_CFLAGS])
172 AC_CACHE_CHECK([whether gcc supports -fPIE], ac_cv_fpie, [dnl
173 save_CFLAGS="$CFLAGS"
174 CFLAGS="$save_CFLAGS -fPIE -Werror"
175 AC_COMPILE_IFELSE([AC_LANG_SOURCE()], ac_cv_fpie=yes, ac_cv_fpie=no)
176 CFLAGS="$save_CFLAGS"
178 if test "$ac_cv_fpie" = "yes"; then
183 AC_SUBST([fpie_CFLAGS])
185 dso_LDFLAGS="-shared"
187 ZDEFS_LDFLAGS="-Wl,-z,defs"
188 AC_CACHE_CHECK([whether gcc supports $ZDEFS_LDFLAGS], ac_cv_zdefs, [dnl
189 save_LDFLAGS="$LDFLAGS"
190 LDFLAGS="$ZDEFS_LDFLAGS $save_LDFLAGS"
191 AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_cv_zdefs=yes, ac_cv_zdefs=no)
192 LDFLAGS="$save_LDFLAGS"
194 if test "$ac_cv_zdefs" = "yes"; then
195 dso_LDFLAGS="$dso_LDFLAGS $ZDEFS_LDFLAGS"
198 ZRELRO_LDFLAGS="-Wl,-z,relro"
199 AC_CACHE_CHECK([whether gcc supports $ZRELRO_LDFLAGS], ac_cv_zrelro, [dnl
200 save_LDFLAGS="$LDFLAGS"
201 LDFLAGS="$ZRELRO_LDFLAGS $save_LDFLAGS"
202 AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_cv_zrelro=yes, ac_cv_zrelro=no)
203 LDFLAGS="$save_LDFLAGS"
205 if test "$ac_cv_zrelro" = "yes"; then
206 dso_LDFLAGS="$dso_LDFLAGS $ZRELRO_LDFLAGS"
209 AC_SUBST([dso_LDFLAGS])
211 AC_CACHE_CHECK([for __thread support], ac_cv_tls, [dnl
212 # Use the same flags that we use for our DSOs, so the test is representative.
213 # Some old compiler/linker/libc combinations fail some ways and not others.
214 save_CFLAGS="$CFLAGS"
215 save_LDFLAGS="$LDFLAGS"
216 CFLAGS="$fpic_CFLAGS $CFLAGS"
217 LDFLAGS="$dso_LDFLAGS $LDFLAGS"
219 AC_LANG_PROGRAM([[#include <stdlib.h>
221 static __thread int a; int foo (int b) { return a + b; }]],
222 [[exit (foo (0));]])],
223 ac_cv_tls=yes, ac_cv_tls=no)
224 CFLAGS="$save_CFLAGS"
225 LDFLAGS="$save_LDFLAGS"])
226 AS_IF([test "x$ac_cv_tls" != xyes],
227 AC_MSG_ERROR([__thread support required]))
229 dnl This test must come as early as possible after the compiler configuration
230 dnl tests, because the choice of the file model can (in principle) affect
231 dnl whether functions and headers are available, whether they work, etc.
234 dnl Older glibc had a broken fts that didn't work with Large File Systems.
235 dnl We want the version that can handler LFS, but include workaround if we
236 dnl get a bad one. Add define to CFLAGS (not AC_DEFINE it) since we need to
237 dnl check it before including config.h (which might define _FILE_OFFSET_BITS).
238 AC_CACHE_CHECK([whether fts.h is bad when included (with LFS)], ac_cv_bad_fts,
239 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <fts.h>]])],
240 ac_cv_bad_fts=no, ac_cv_bad_fts=yes)])
241 AS_IF([test "x$ac_cv_bad_fts" = "xyes"], [CFLAGS="$CFLAGS -DBAD_FTS=1"])
243 # See if we can add -D_FORTIFY_SOURCE=2. Don't do it if it is already
244 # (differently) defined or if it generates warnings/errors because we
245 # don't use the right optimisation level (string.h will warn about that).
246 AC_MSG_CHECKING([whether to add -D_FORTIFY_SOURCE=2 to CFLAGS])
248 *-D_FORTIFY_SOURCE=2*)
249 AC_MSG_RESULT([no, already there])
252 save_CFLAGS="$CFLAGS"
253 CFLAGS="-D_FORTIFY_SOURCE=2 -Werror $CFLAGS"
254 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
256 int main() { return 0; }
257 ]])], [ AC_MSG_RESULT([yes])
258 CFLAGS="-D_FORTIFY_SOURCE=2 $save_CFLAGS" ],
259 [ AC_MSG_RESULT([no])
260 CFLAGS="$save_CFLAGS"])
264 dnl enable debugging of branch prediction.
265 AC_ARG_ENABLE([debugpred],
266 AS_HELP_STRING([--enable-debugpred],[build binaries with support to debug branch prediction]),
267 [use_debugpred=$enableval], [use_debugpred=no])
268 case $use_debugpred in
269 yes) use_debugpred_val=1 ;;
270 *) use_debugpred_val=0 ;;
272 AC_SUBST([DEBUGPRED], $use_debugpred_val)
274 dnl Enable gprof suport.
275 AC_ARG_ENABLE([gprof],
276 AS_HELP_STRING([--enable-gprof],[build binaries with gprof support]), [use_gprof=$enableval], [use_gprof=no])
277 if test "$use_gprof" = yes; then
279 LDFLAGS="$LDFLAGS -pg"
281 AM_CONDITIONAL(GPROF, test "$use_gprof" = yes)
283 # Enable gcov suport.
284 AC_ARG_ENABLE([gcov],
285 AS_HELP_STRING([--enable-gcov],[build binaries with gcov support]), [use_gcov=$enableval], [use_gcov=no])
286 if test "$use_gcov" = yes; then
287 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
288 LDFLAGS="$LDFLAGS -fprofile-arcs"
290 AM_CONDITIONAL(GCOV, test "$use_gcov" = yes)
292 AC_ARG_ENABLE([sanitize-undefined],
293 AS_HELP_STRING([--enable-sanitize-undefined],
294 [Use gcc undefined behaviour sanitizer]),
295 [use_undefined=$enableval], [use_undefined=no])
296 if test "$use_undefined" = yes; then
298 old_CXXFLAGS="$CXXFLAGS"
299 # We explicitly use unaligned access when possible (see ALLOW_UNALIGNED)
300 # We want to fail immediately on first error, don't try to recover.
301 CFLAGS="$CFLAGS -fsanitize=undefined -fno-sanitize-recover"
302 CXXFLAGS="$CXXFLAGS -fsanitize=undefined -fno-sanitize-recover"
303 AC_LINK_IFELSE([AC_LANG_SOURCE([int main (int argc, char **argv) { return 0; }])], use_undefined=yes, use_undefined=no)
304 AS_IF([test "x$use_undefined" != xyes],
305 AC_MSG_WARN([gcc undefined behaviour sanitizer not available])
306 CFLAGS="$old_CFLAGS" CXXFLAGS="$old_CXXFLAGS")
308 case $use_undefined in
309 yes) check_undefined_val=1 ;;
310 *) check_undefined_val=0 ;;
312 AC_DEFINE_UNQUOTED(CHECK_UNDEFINED, $check_undefined_val,
313 [Building with -fsanitize=undefined or not])
315 AC_ARG_ENABLE([valgrind],
316 AS_HELP_STRING([--enable-valgrind],[run all tests under valgrind]),
317 [use_valgrind=$enableval], [use_valgrind=no])
318 if test "$use_valgrind" = yes; then
319 AC_CHECK_PROG(HAVE_VALGRIND, valgrind, yes, no)
320 if test "$HAVE_VALGRIND" = "no"; then
321 AC_MSG_ERROR([valgrind not found])
324 AM_CONDITIONAL(USE_VALGRIND, test "$use_valgrind" = yes)
326 AM_CONDITIONAL(BUILD_STATIC, [dnl
327 test "$use_gprof" = yes -o "$use_gcov" = yes])
329 AC_ARG_ENABLE([tests-rpath],
330 AS_HELP_STRING([--enable-tests-rpath],[build $ORIGIN-using rpath into tests]),
331 [tests_use_rpath=$enableval], [tests_use_rpath=no])
332 AM_CONDITIONAL(TESTS_RPATH, test "$tests_use_rpath" = yes)
334 LIBEBL_SUBDIR="$PACKAGE"
335 AC_ARG_ENABLE([libebl-subdir],
336 AS_HELP_STRING([--enable-libebl-subdir=DIR],
337 [install libebl_CPU modules in $(libdir)/DIR]), [dnl
338 LIBEBL_SUBDIR="$enable_libebl_subdir"])
339 AC_SUBST([LIBEBL_SUBDIR])
340 AC_DEFINE_UNQUOTED(LIBEBL_SUBDIR, "$LIBEBL_SUBDIR")
341 AH_TEMPLATE([LIBEBL_SUBDIR], [$libdir subdirectory containing libebl modules.])
343 dnl zlib is mandatory.
346 eu_ZIPLIB(zlib,ZLIB,z,gzdirect,gzip)
347 AS_IF([test "x$with_zlib" = xno], [AC_MSG_ERROR([zlib not found but is required])])
350 dnl Test for bzlib and xz/lzma, gives BZLIB/LZMALIB .am
351 dnl conditional and config.h USE_BZLIB/USE_LZMALIB #define.
354 eu_ZIPLIB(bzlib,BZLIB,bz2,BZ2_bzdopen,bzip2)
355 # We need this since bzip2 doesn't have a pkgconfig file.
358 eu_ZIPLIB(lzma,LZMA,lzma,lzma_auto_decoder,[LZMA (xz)])
359 AS_IF([test "x$with_lzma" = xyes], [LIBLZMA="liblzma"], [LIBLZMA=""])
365 AC_CHECK_DECLS([memrchr, rawmemchr],[],[],
367 #include <string.h>])
368 AC_CHECK_DECLS([powerof2],[],[],[#include <sys/param.h>])
369 AC_CHECK_DECLS([mempcpy],[],[],
371 #include <string.h>])
373 AC_CHECK_FUNCS([process_vm_readv])
375 AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl
376 AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])])
377 AM_CONDITIONAL(DEMANGLE, test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes")
378 AS_IF([test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes"],
379 [enable_demangler=yes],[enable_demangler=no])
381 AC_ARG_ENABLE([textrelcheck],
382 AS_HELP_STRING([--disable-textrelcheck],
383 [Disable textrelcheck being a fatal error]))
384 AM_CONDITIONAL(FATAL_TEXTREL, [test "x$enable_textrelcheck" != "xno"])
385 AS_IF([test "x$enable_textrelcheck" != "xno"],
386 [enable_textrelcheck=yes],[enable_textrelcheck=no])
388 AC_ARG_ENABLE([symbol-versioning],
389 AS_HELP_STRING([--disable-symbol-versioning],
390 [Disable symbol versioning in shared objects]))
392 AC_CACHE_CHECK([whether symbol versioning is supported], ac_cv_symbol_versioning, [dnl
393 AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
394 #define NEW_VERSION(name, version) \
395 asm (".symver " #name "," #name "@@@" #version);
396 int foo(int x) { return x + 1; }
397 NEW_VERSION (foo, ELFUTILS_12.12)
398 ])], ac_cv_symbol_versioning=yes, ac_cv_symbol_versioning=no)])
399 if test "$ac_cv_symbol_versioning" = "no"; then
400 if test "x$enable_symbol_versioning" != "xno"; then
401 AC_MSG_ERROR([Symbol versioning is not supported.
402 Use --disable-symbol-versioning to build without.])
406 AM_CONDITIONAL(SYMBOL_VERSIONING, [test "x$enable_symbol_versioning" != "xno"])
407 AS_IF([test "x$enable_symbol_versioning" = "xno"],
408 [AC_MSG_WARN([Disabling symbol versioning breaks ABI compatibility.])
409 enable_symbol_versioning=no],[enable_symbol_versioning=yes])
411 AC_CACHE_CHECK([whether gcc accepts -Wstack-usage], ac_cv_stack_usage, [dnl
413 CFLAGS="$CFLAGS -Wstack-usage=262144 -Werror"
414 AC_COMPILE_IFELSE([AC_LANG_SOURCE([])],
415 ac_cv_stack_usage=yes, ac_cv_stack_usage=no)
416 CFLAGS="$old_CFLAGS"])
417 AM_CONDITIONAL(ADD_STACK_USAGE_WARNING, [test "x$ac_cv_stack_usage" != "xno"])
419 # -Wlogical-op was too fragile in the past, make sure we get a sane one.
420 AC_CACHE_CHECK([whether gcc has a sane -Wlogical-op], ac_cv_logical_op, [dnl
422 CFLAGS="$CFLAGS -Wlogical-op -Werror"
423 AC_COMPILE_IFELSE([AC_LANG_SOURCE(
425 int f (int r, int f) { return (r && (FLAG || (FLAG & f))); }])],
426 ac_cv_logical_op=yes, ac_cv_logical_op=no)
427 CFLAGS="$old_CFLAGS"])
428 AM_CONDITIONAL(SANE_LOGICAL_OP_WARNING,
429 [test "x$ac_cv_logical_op" != "xno"])
431 # -Wduplicated-cond was added by GCC6
432 AC_CACHE_CHECK([whether gcc accepts -Wduplicated-cond], ac_cv_duplicated_cond, [dnl
434 CFLAGS="$CFLAGS -Wduplicated-cond -Werror"
435 AC_COMPILE_IFELSE([AC_LANG_SOURCE([])],
436 ac_cv_duplicated_cond=yes, ac_cv_duplicated_cond=no)
437 CFLAGS="$old_CFLAGS"])
438 AM_CONDITIONAL(HAVE_DUPLICATED_COND_WARNING,
439 [test "x$ac_cv_duplicated_cond" != "xno"])
441 # -Wnull-dereference was added by GCC6
442 AC_CACHE_CHECK([whether gcc accepts -Wnull-dereference], ac_cv_null_dereference, [dnl
444 CFLAGS="$CFLAGS -Wnull-dereference -Werror"
445 AC_COMPILE_IFELSE([AC_LANG_SOURCE([])],
446 ac_cv_null_dereference=yes, ac_cv_null_dereference=no)
447 CFLAGS="$old_CFLAGS"])
448 AM_CONDITIONAL(HAVE_NULL_DEREFERENCE_WARNING,
449 [test "x$ac_cv_null_dereference" != "xno"])
451 # -Wimplicit-fallthrough was added by GCC7
452 AC_CACHE_CHECK([whether gcc accepts -Wimplicit-fallthrough], ac_cv_implicit_fallthrough, [dnl
454 CFLAGS="$CFLAGS -Wimplicit-fallthrough -Werror"
455 AC_COMPILE_IFELSE([AC_LANG_SOURCE([])],
456 ac_cv_implicit_fallthrough=yes, ac_cv_implicit_fallthrough=no)
457 CFLAGS="$old_CFLAGS"])
458 AM_CONDITIONAL(HAVE_IMPLICIT_FALLTHROUGH_WARNING,
459 [test "x$ac_cv_implicit_fallthrough" != "xno"])
461 # Assume the fallthrough attribute is supported if -Wimplict-fallthrough is supported
462 if test "$ac_cv_implicit_fallthrough" = "yes"; then
463 AC_DEFINE([HAVE_FALLTHROUGH], [1],
464 [Defined if __attribute__((fallthrough)) is supported])
467 dnl Check if we have argp available from our libc
471 [int argc=1; char *argv[]={"test"}; argp_parse(0,argc,&argv,0,0,0); return 0;]
473 [libc_has_argp="true"],
474 [libc_has_argp="false"]
477 dnl If our libc doesn't provide argp, then test for libargp
478 if test "$libc_has_argp" = "false" ; then
479 AC_MSG_WARN("libc does not have argp")
480 AC_CHECK_LIB([argp], [argp_parse], [have_argp="true"], [have_argp="false"])
482 if test "$have_argp" = "false"; then
483 AC_MSG_ERROR("no libargp found")
490 AC_SUBST([argp_LDADD])
492 dnl The directories with content.
495 dnl Commented out for now.
496 dnl AC_CONFIG_FILES([doc/Makefile])
499 AC_CONFIG_FILES([lib/Makefile])
502 AC_CONFIG_FILES([libelf/Makefile])
504 dnl Higher-level ELF support library.
505 AC_CONFIG_FILES([libebl/Makefile])
507 dnl DWARF-ELF Lower-level Functions support library.
508 AC_CONFIG_FILES([libdwelf/Makefile])
511 AC_CONFIG_FILES([libdw/Makefile])
513 dnl Higher-level DWARF support library.
514 AC_CONFIG_FILES([libdwfl/Makefile])
516 dnl CPU handling library.
517 AC_CONFIG_FILES([libcpu/Makefile])
519 dnl Assembler library.
520 AM_CONDITIONAL(HAVE_LIBASM, true)dnl Used in tests/Makefile.am, which see.
521 AC_CONFIG_FILES([libasm/Makefile])
523 dnl CPU-specific backend libraries.
524 AC_CONFIG_FILES([backends/Makefile])
527 AC_CONFIG_FILES([src/Makefile po/Makefile.in])
530 AM_CONDITIONAL(STANDALONE, false)dnl Used in tests/Makefile.am, which see.
531 AC_CONFIG_FILES([tests/Makefile])
534 AC_CONFIG_FILES([config/libelf.pc config/libdw.pc])
536 # Get the definitions necessary to create the Makefiles in the po
537 # subdirectories. This is a small subset of the gettext rules.
538 AC_SUBST(USE_NLS, yes)
541 dnl Appended to the config.h file.
542 dnl We hide all kinds of configuration magic in lib/eu-config.h.
543 AH_BOTTOM([#include <eu-config.h>])
545 dnl Version compatibility header.
546 AC_CONFIG_FILES([version.h:config/version.h.in])
547 AC_SUBST([eu_version])
549 # 1.234<whatever> -> 1234<whatever>
550 case "$PACKAGE_VERSION" in
551 [[0-9]].*) eu_version=`echo "$PACKAGE_VERSION" | sed 's@\.@@'` ;;
552 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
554 case "$eu_version" in
556 # 1234.567 -> "1234", "567"
557 eu_extra_version="${eu_version#*.}"
558 eu_version="${eu_version%%.*}"
559 case "$eu_extra_version" in
560 [[0-9]][[0-9]][[0-9]]) ;;
561 [[0-9]][[0-9]]) eu_extra_version="${eu_extra_version}0" ;;
562 [[0-9]]) eu_extra_version="${eu_extra_version}00" ;;
563 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
571 case "$eu_version" in
572 0[[0-9]][[0-9]][[0-9]]) eu_version="${eu_version#0}$eu_extra_version" ;;
573 [[0-9]][[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}$eu_extra_version" ;;
574 [[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}0$eu_extra_version" ;;
575 [[0-9]][[0-9]]) eu_version="${eu_version}00$eu_extra_version";;
576 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
579 # Round up to the next release API (x.y) version.
580 eu_version=$(( (eu_version + 999) / 1000 ))
582 dnl Unique ID for this build.
583 MODVERSION="Build for ${LIBEBL_SUBDIR} ${eu_version} ${ac_cv_build}"
584 AC_SUBST([MODVERSION])
585 AC_DEFINE_UNQUOTED(MODVERSION, "$MODVERSION")
586 AH_TEMPLATE([MODVERSION], [Identifier for modules in the build.])
588 AC_CHECK_SIZEOF(long)
590 # On aarch64 before glibc 2.20 we would get the kernel user_pt_regs instead
591 # of the user_regs_struct from sys/user.h. They are structurally the same
592 # but we get either one or the other.
593 AC_CHECK_TYPE([struct user_regs_struct],
594 [sys_user_has_user_regs=yes], [sys_user_has_user_regs=no],
595 [[#include <sys/ptrace.h>]
596 [#include <sys/time.h>]
597 [#include <sys/user.h>]])
598 if test "$sys_user_has_user_regs" = "yes"; then
599 AC_DEFINE(HAVE_SYS_USER_REGS, 1,
600 [Define to 1 if <sys/user.h> defines struct user_regs_struct])
603 # On a 64-bit host where can can use $CC -m32, we'll run two sets of tests.
604 # Likewise in a 32-bit build on a host where $CC -m64 works.
606 # `$utrace_biarch' will be `-m64' even on an uniarch i386 machine.
607 CC_BIARCH="$CC $utrace_biarch"
608 AC_SUBST([CC_BIARCH])
610 # In maintainer mode we really need flex and bison.
611 # Otherwise we really need a release dir with maintainer files generated.
612 if test "x$enable_maintainer_mode" = xyes; then
613 AC_CHECK_PROG(HAVE_FLEX, flex, yes, no)
614 if test "$HAVE_FLEX" = "no"; then
615 AC_MSG_ERROR([flex needed in maintainer mode])
617 AC_CHECK_PROG(HAVE_BISON, bison, yes, no)
618 if test "$HAVE_BISON" = "no"; then
619 AC_MSG_ERROR([bison needed in maintainer mode])
622 if test ! -f ${srcdir}/libdw/known-dwarf.h; then
623 AC_MSG_ERROR([No libdw/known-dwarf.h. configure --enable-maintainer-mode])
627 # The testfiles are all compressed, we need bunzip2 when running make check
628 AC_CHECK_PROG(HAVE_BUNZIP2, bunzip2, yes, no)
629 if test "$HAVE_BUNZIP2" = "no"; then
630 AC_MSG_WARN([No bunzip2, needed to run make check])
636 =====================================================================
637 elfutils: ${PACKAGE_VERSION} (eu_version: ${eu_version})
638 =====================================================================
641 Program prefix ("eu-" recommended) : ${program_prefix}
642 Source code location : ${srcdir}
643 Maintainer mode : ${enable_maintainer_mode}
644 libebl modules subdirectory : ${LIBEBL_SUBDIR}
645 build arch : ${ac_cv_build}
647 RECOMMENDED FEATURES (should all be yes)
648 gzip support : ${with_zlib}
649 bzip2 support : ${with_bzlib}
650 lzma/xz support : ${with_lzma}
651 libstdc++ demangle support : ${enable_demangler}
652 File textrel check : ${enable_textrelcheck}
653 Symbol versioning : ${enable_symbol_versioning}
655 NOT RECOMMENDED FEATURES (should all be no)
656 Experimental thread safety : ${use_locks}
659 Deterministic archives by default : ${default_ar_deterministic}
660 Native language support : ${USE_NLS}
662 EXTRA TEST FEATURES (used with make check)
663 have bunzip2 installed (required) : ${HAVE_BUNZIP2}
664 debug branch prediction : ${use_debugpred}
665 gprof support : ${use_gprof}
666 gcov support : ${use_gcov}
667 run all tests under valgrind : ${use_valgrind}
668 gcc undefined behaviour sanitizer : ${use_undefined}
669 use rpath in tests : ${tests_use_rpath}
670 test biarch : ${utrace_cv_cc_biarch}