1 dnl Process this file with autoconf to produce a configure script.
2 dnl Configure input file for elfutils. -*-autoconf-*-
4 dnl Copyright (C) 1996-2014 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],[0.158],[https://bugzilla.redhat.com/],[elfutils])
22 AC_CONFIG_AUX_DIR([config])
23 AC_CONFIG_FILES([config/Makefile])
25 AC_COPYRIGHT([Copyright (C) 1996-2014 Red Hat, Inc.])
26 AC_PREREQ(2.63) dnl Minimum Autoconf version required.
28 dnl We use GNU make extensions; automake 1.10 defaults to -Wportability.
29 AM_INIT_AUTOMAKE([gnits 1.11 -Wno-portability dist-bzip2 no-dist-gzip parallel-tests])
32 dnl Unique ID for this build.
33 MODVERSION="Build on $(hostname) $(date +%FT%R:%S%z)"
34 AC_SUBST([MODVERSION])
35 AC_DEFINE_UNQUOTED(MODVERSION, "$MODVERSION")
36 AH_TEMPLATE([MODVERSION], [Identifier for modules in the build.])
38 AC_CONFIG_SRCDIR([libelf/libelf.h])
39 AC_CONFIG_FILES([Makefile])
40 AC_CONFIG_HEADERS([config.h])
42 AC_CONFIG_MACRO_DIR([m4])
43 AC_CONFIG_FILES([m4/Makefile])
45 dnl The RPM spec file. We substitute a few values in the file.
46 AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in])
51 AC_ARG_ENABLE(deterministic-archives,
52 [AS_HELP_STRING([--enable-deterministic-archives],
53 [ar and ranlib default to -D behavior])], [
54 if test "${enableval}" = no; then
55 default_ar_deterministic=false
57 default_ar_deterministic=true
58 fi], [default_ar_deterministic=false])
59 AC_DEFINE_UNQUOTED(DEFAULT_AR_DETERMINISTIC, $default_ar_deterministic,
60 [Should ar and ranlib use -D behavior by default?])
62 AC_ARG_ENABLE([thread-safety],
63 AS_HELP_STRING([--enable-thread-safety],
64 [enable thread safety of libraries EXPERIMENTAL]),
65 use_locks=$enableval, use_locks=no)
66 AM_CONDITIONAL(USE_LOCKS, test "$use_locks" = yes)
67 AS_IF([test "$use_locks" = yes], [AC_DEFINE(USE_LOCKS)])
68 AS_IF([test "$use_locks" = yes],
69 [AC_MSG_WARN([thread-safety is EXPERIMENTAL tests might fail.])])
71 AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.])
74 AS_HELP_STRING([--enable-dwz], [enable experimental GNU ref_alt FORM, dwz multi file support in libdw]),
75 enable_dwz=$enableval, enable_dwz=no)
76 AM_CONDITIONAL(ENABLE_DWZ, test "$enable_dwz" = yes)
77 AS_IF([test "$enable_dwz" = yes], [AC_DEFINE(ENABLE_DWZ)])
78 AS_IF([test "$enable_dwz" = no -a -d /usr/lib/debug/.dwz],
79 [AC_MSG_WARN([--enable-dwz disabled and /usr/lib/debug/.dwz exists, native tests might fail])])
81 AH_TEMPLATE([ENABLE_DWZ], [Defined if libdw should support GNU ref_alt FORM, dwz multi files.])
87 # Only available since automake 1.12
88 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
89 AC_CHECK_TOOL([READELF], [readelf])
90 AC_CHECK_TOOL([NM], [nm])
92 AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl
94 CFLAGS="$CFLAGS -std=gnu99"
95 AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
96 int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }])],
97 ac_cv_c99=yes, ac_cv_c99=no)
98 CFLAGS="$old_CFLAGS"])
99 AS_IF([test "x$ac_cv_c99" != xyes],
100 AC_MSG_ERROR([gcc with C99 support required]))
102 AC_CACHE_CHECK([for __thread support], ac_cv_tls, [dnl
103 # Use the same flags that we use for our DSOs, so the test is representative.
104 # Some old compiler/linker/libc combinations fail some ways and not others.
105 save_CFLAGS="$CFLAGS"
106 save_LDFLAGS="$LDFLAGS"
107 CFLAGS="-fpic $CFLAGS"
108 LDFLAGS="-shared -Wl,-z,defs,-z,relro $LDFLAGS"
110 AC_LANG_PROGRAM([[#undef __thread
111 static __thread int a; int foo (int b) { return a + b; }]],
112 [[exit (foo (0));]])],
113 ac_cv_tls=yes, ac_cv_tls=no)
114 CFLAGS="$save_CFLAGS"
115 LDFLAGS="$save_LDFLAGS"])
116 AS_IF([test "x$ac_cv_tls" != xyes],
117 AC_MSG_ERROR([__thread support required]))
119 dnl This test must come as early as possible after the compiler configuration
120 dnl tests, because the choice of the file model can (in principle) affect
121 dnl whether functions and headers are available, whether they work, etc.
124 dnl Enable the linker to be build as a native-only linker. By default it
125 dnl can handle all architectures but this comes at a cost. A native
126 dnl will be slightly faster, small, and has fewer dependencies.
128 AC_ARG_ENABLE([generic],
129 AS_HELP_STRING([--disable-generic], [do not build generic linker]), [dnl
130 if test "$enable_generic" = no; then
133 AC_DEFINE(NATIVE_ELF, 32)
138 AC_MSG_ERROR([no machine-specific linker for this configuration available])
142 AH_TEMPLATE([NATIVE_ELF],
143 [Define to 32 or 64 if a specific implementation is wanted.])
144 AM_CONDITIONAL(NATIVE_LD, test "$native_ld" = yes)
145 dnl The automake generated Makefile cannot deal with macros in the name
146 dnl of files if at any time there is no such file, even if the filename
147 dnl would not be used.
148 AS_IF([test -z "$base_cpu"], [base_cpu=none])
150 dnl Support to work around automake's inflexible dependency generation.
151 dnl See src/Makefile.am for more information.
152 AM_CONDITIONAL(NEVER, false)
154 dnl Enable debugging via mudflap. This option will cause most libraries
155 dnl to be built as archives which are statically linked into the applications.
156 dnl All code, as far as possible, is compiled instrumented to catch all
157 dnl the bugs valgrind is able to catch.
159 AC_ARG_ENABLE([mudflap],
160 AS_HELP_STRING([--enable-mudflap],
161 [build binaries with mudflap instrumentation]), [dnl
162 if test "x$enable_mudflap" = xyes; then
163 # Check whether the compiler support -fmudflap.
165 CFLAGS="$CFLAGS -fmudflap"
166 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[use_mudflap=yes],[use_mudflap=fail])
169 if test "$use_mudflap" = fail; then
170 AC_MSG_FAILURE([--enable-mudflap requires a compiler which understands this option])
172 AM_CONDITIONAL(MUDFLAP, test "$use_mudflap" = yes)
174 dnl enable debugging of branch prediction.
175 AC_ARG_ENABLE([debugpred],
176 AS_HELP_STRING([--enable-debugpred],[build binaries with support to debug branch prediction]),
177 [use_debugpred=$enableval], [use_debugpred=no])
178 case $use_debugpred in
179 yes) use_debugpred=1 ;;
180 *) use_debugpred=0 ;;
182 AC_SUBST([DEBUGPRED], $use_debugpred)
184 dnl Enable gprof suport.
185 AC_ARG_ENABLE([gprof],
186 AS_HELP_STRING([--enable-gprof],[build binaries with gprof support]), [use_gprof=$enableval], [use_gprof=no])
187 if test "$use_gprof" = yes; then
189 LDFLAGS="$LDFLAGS -pg"
191 AM_CONDITIONAL(GPROF, test "$use_gprof" = yes)
193 # Enable gcov suport.
194 AC_ARG_ENABLE([gcov],
195 AS_HELP_STRING([--enable-gcov],[build binaries with gcov support]), [use_gcov=$enableval], [use_gcov=no])
196 if test "$use_gcov" = yes; then
197 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
198 LDFLAGS="$LDFLAGS -fprofile-arcs"
200 AM_CONDITIONAL(GCOV, test "$use_gcov" = yes)
202 AC_ARG_ENABLE([valgrind],
203 AS_HELP_STRING([--enable-valgrind],[run all tests under valgrind]),
204 [use_valgrind=$enableval], [use_valgrind=no])
205 if test "$use_valgrind" = yes; then
206 AC_CHECK_PROG(HAVE_VALGRIND, valgrind, yes, no)
207 if test "$HAVE_VALGRIND" = "no"; then
208 AC_MSG_ERROR([valgrind not found])
211 AM_CONDITIONAL(USE_VALGRIND, test "$use_valgrind" = yes)
213 AM_CONDITIONAL(BUILD_STATIC, [dnl
214 test "$use_mudflap" = yes -o "$use_gprof" = yes -o "$use_gcov" = yes])
216 AC_ARG_ENABLE([tests-rpath],
217 AS_HELP_STRING([--enable-tests-rpath],[build $ORIGIN-using rpath into tests]),
218 [tests_use_rpath=$enableval], [tests_use_rpath=no])
219 AM_CONDITIONAL(TESTS_RPATH, test "$tests_use_rpath" = yes)
221 LIBEBL_SUBDIR="$PACKAGE"
222 AC_ARG_ENABLE([libebl-subdir],
223 AS_HELP_STRING([--enable-libebl-subdir=DIR],
224 [install libebl_CPU modules in $(libdir)/DIR]), [dnl
225 LIBEBL_SUBDIR="$enable_libebl_subdir"])
226 AC_SUBST([LIBEBL_SUBDIR])
227 AC_DEFINE_UNQUOTED(LIBEBL_SUBDIR, "$LIBEBL_SUBDIR")
228 AH_TEMPLATE([LIBEBL_SUBDIR], [$libdir subdirectory containing libebl modules.])
230 dnl Test for zlib and bzlib, gives ZLIB/BZLIB .am
231 dnl conditional and config.h USE_ZLIB/USE_BZLIB #define.
234 eu_ZIPLIB(zlib,ZLIB,z,gzdirect,gzip)
235 eu_ZIPLIB(bzlib,BZLIB,bz2,BZ2_bzdopen,bzip2)
236 eu_ZIPLIB(lzma,LZMA,lzma,lzma_auto_decoder,[LZMA (xz)])
241 AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl
242 AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])])
243 AM_CONDITIONAL(DEMANGLE, test "$ac_cv_lib_stdcpp___cxa_demangle" = yes)
245 dnl The directories with content.
248 dnl Commented out for now.
249 dnl AC_CONFIG_FILES([doc/Makefile])
252 AC_CONFIG_FILES([lib/Makefile])
255 AC_CONFIG_FILES([libelf/Makefile])
257 dnl Higher-level ELF support library.
258 AC_CONFIG_FILES([libebl/Makefile])
261 AC_CONFIG_FILES([libdw/Makefile])
263 dnl Higher-level DWARF support library.
264 AC_CONFIG_FILES([libdwfl/Makefile])
266 dnl CPU handling library.
267 AC_CONFIG_FILES([libcpu/Makefile])
269 dnl Assembler library.
270 AM_CONDITIONAL(HAVE_LIBASM, true)dnl Used in tests/Makefile.am, which see.
271 AC_CONFIG_FILES([libasm/Makefile])
273 dnl CPU-specific backend libraries.
274 AC_CONFIG_FILES([backends/Makefile])
277 AC_CONFIG_FILES([src/Makefile po/Makefile.in])
280 AM_CONDITIONAL(STANDALONE, false)dnl Used in tests/Makefile.am, which see.
281 AC_CONFIG_FILES([tests/Makefile])
283 # Get the definitions necessary to create the Makefiles in the po
284 # subdirectories. This is a small subset of the gettext rules.
285 AC_SUBST(USE_NLS, yes)
288 dnl Appended to the config.h file.
289 dnl We hide all kinds of configuration magic in lib/eu-config.h.
290 AH_BOTTOM([#include <eu-config.h>])
292 dnl Version compatibility header.
293 AC_CONFIG_FILES([version.h:config/version.h.in])
294 AC_SUBST([eu_version])
296 # 1.234<whatever> -> 1234<whatever>
297 case "$PACKAGE_VERSION" in
298 [[0-9]].*) eu_version=`echo "$PACKAGE_VERSION" | sed 's@\.@@'` ;;
299 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
301 case "$eu_version" in
303 # 1234.567 -> "1234", "567"
304 eu_extra_version="${eu_version#*.}"
305 eu_version="${eu_version%%.*}"
306 case "$eu_extra_version" in
307 [[0-9]][[0-9]][[0-9]]) ;;
308 [[0-9]][[0-9]]) eu_extra_version="${eu_extra_version}0" ;;
309 [[0-9]]) eu_extra_version="${eu_extra_version}00" ;;
310 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
318 case "$eu_version" in
319 0[[0-9]][[0-9]][[0-9]]) eu_version="${eu_version#0}$eu_extra_version" ;;
320 [[0-9]][[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}$eu_extra_version" ;;
321 [[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}0$eu_extra_version" ;;
322 [[0-9]][[0-9]]) eu_version="${eu_version}00$eu_extra_version";;
323 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
326 # Round up to the next release API (x.y) version.
327 eu_version=$(( (eu_version + 999) / 1000 ))
329 AC_CHECK_SIZEOF(long)
331 # On a 64-bit host where can can use $CC -m32, we'll run two sets of tests.
332 # Likewise in a 32-bit build on a host where $CC -m64 works.
334 # `$utrace_biarch' will be `-m64' even on an uniarch i386 machine.
335 CC_BIARCH="$CC $utrace_biarch"
336 AC_SUBST([CC_BIARCH])