1 dnl Process this file with autoconf to produce a configure script.
2 dnl Configure input file for elfutils. -*-autoconf-*-
4 dnl Copyright (C) 1996-2012 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],[0.154],[http://bugzilla.redhat.com/bugzilla/],[elfutils])
22 AC_CONFIG_AUX_DIR([config])
23 AC_CONFIG_FILES([config/Makefile])
25 AC_COPYRIGHT([Copyright (C) 1996-2012 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 1.8 -Wno-portability dist-bzip2 no-dist-gzip])
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, $default_ar_deterministic,
60 [Should ar and ranlib use -D behavior by default?])
62 AC_ARG_ENABLE([thread-safety],
63 AS_HELP_STRING([--enable-thread-safety], [enable thread safety of libraries]),
64 use_locks=$enableval, use_locks=no)
65 AM_CONDITIONAL(USE_LOCKS, test "$use_locks" = yes)
66 AS_IF([test "$use_locks" = yes], [AC_DEFINE(USE_LOCKS)])
68 AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.])
75 AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl
77 CFLAGS="$CFLAGS -std=gnu99"
78 AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
79 int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }])],
80 ac_cv_c99=yes, ac_cv_c99=no)
81 CFLAGS="$old_CFLAGS"])
82 AS_IF([test "x$ac_cv_c99" != xyes],
83 AC_MSG_ERROR([gcc with C99 support required]))
85 AC_CACHE_CHECK([for __thread support], ac_cv_tls, [dnl
86 # Use the same flags that we use for our DSOs, so the test is representative.
87 # Some old compiler/linker/libc combinations fail some ways and not others.
89 save_LDFLAGS="$LDFLAGS"
90 CFLAGS="-fpic $CFLAGS"
91 LDFLAGS="-shared -Wl,-z,defs,-z,relro $LDFLAGS"
93 AC_LANG_PROGRAM([[#undef __thread
94 static __thread int a; int foo (int b) { return a + b; }]],
95 [[exit (foo (0));]])],
96 ac_cv_tls=yes, ac_cv_tls=no)
98 LDFLAGS="$save_LDFLAGS"])
99 AS_IF([test "x$ac_cv_tls" != xyes],
100 AC_MSG_ERROR([__thread support required]))
102 dnl This test must come as early as possible after the compiler configuration
103 dnl tests, because the choice of the file model can (in principle) affect
104 dnl whether functions and headers are available, whether they work, etc.
107 dnl Enable the linker to be build as a native-only linker. By default it
108 dnl can handle all architectures but this comes at a cost. A native
109 dnl will be slightly faster, small, and has fewer dependencies.
111 AC_ARG_ENABLE([generic],
112 AS_HELP_STRING([--disable-generic], [do not build generic linker]), [dnl
113 if test "$enable_generic" = no; then
116 AC_DEFINE(NATIVE_ELF, 32)
121 AC_MSG_ERROR([no machine-specific linker for this configuration available])
125 AH_TEMPLATE([NATIVE_ELF],
126 [Define to 32 or 64 if a specific implementation is wanted.])
127 AM_CONDITIONAL(NATIVE_LD, test "$native_ld" = yes)
128 dnl The automake generated Makefile cannot deal with macros in the name
129 dnl of files if at any time there is no such file, even if the filename
130 dnl would not be used.
131 AS_IF([test -z "$base_cpu"], [base_cpu=none])
133 dnl Support to work around automake's inflexible dependency generation.
134 dnl See src/Makefile.am for more information.
135 AM_CONDITIONAL(NEVER, false)
137 dnl Enable debugging via mudflap. This option will cause most libraries
138 dnl to be built as archives which are statically linked into the applications.
139 dnl All code, as far as possible, is compiled instrumented to catch all
140 dnl the bugs valgrind is able to catch.
142 AC_ARG_ENABLE([mudflap],
143 AS_HELP_STRING([--enable-mudflap],
144 [build binaries with mudflap instrumentation]), [dnl
145 if test "x$enable_mudflap" = xyes; then
146 # Check whether the compiler support -fmudflap.
148 CFLAGS="$CFLAGS -fmudflap"
149 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[use_mudflap=yes],[use_mudflap=fail])
152 if test "$use_mudflap" = fail; then
153 AC_MSG_FAILURE([--enable-mudflap requires a compiler which understands this option])
155 AM_CONDITIONAL(MUDFLAP, test "$use_mudflap" = yes)
157 dnl enable debugging of branch prediction.
158 AC_ARG_ENABLE([debugpred],
159 AS_HELP_STRING([--enable-debugpred],[build binaries with support to debug branch prediction]),
160 [use_debugpred=$enableval], [use_debugpred=no])
161 case $use_debugpred in
162 yes) use_debugpred=1 ;;
163 *) use_debugpred=0 ;;
165 AC_SUBST([DEBUGPRED], $use_debugpred)
167 dnl Enable gprof suport.
168 AC_ARG_ENABLE([gprof],
169 AS_HELP_STRING([--enable-gprof],[build binaries with gprof support]), [use_gprof=$enableval], [use_gprof=no])
170 if test "$use_gprof" = yes; then
172 LDFLAGS="$LDFLAGS -pg"
174 AM_CONDITIONAL(GPROF, test "$use_gprof" = yes)
176 # Enable gcov suport.
177 AC_ARG_ENABLE([gcov],
178 AS_HELP_STRING([--enable-gcov],[build binaries with gcov support]), [use_gcov=$enableval], [use_gcov=no])
179 if test "$use_gcov" = yes; then
180 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
181 LDFLAGS="$LDFLAGS -fprofile-arcs"
183 AM_CONDITIONAL(GCOV, test "$use_gcov" = yes)
185 AM_CONDITIONAL(BUILD_STATIC, [dnl
186 test "$use_mudflap" = yes -o "$use_gprof" = yes -o "$use_gcov" = yes])
188 AC_ARG_ENABLE([tests-rpath],
189 AS_HELP_STRING([--enable-tests-rpath],[build $ORIGIN-using rpath into tests]),
190 [tests_use_rpath=$enableval], [tests_use_rpath=no])
191 AM_CONDITIONAL(TESTS_RPATH, test "$tests_use_rpath" = yes)
193 LIBEBL_SUBDIR="$PACKAGE"
194 AC_ARG_ENABLE([libebl-subdir],
195 AS_HELP_STRING([--enable-libebl-subdir=DIR],
196 [install libebl_CPU modules in $(libdir)/DIR]), [dnl
197 LIBEBL_SUBDIR="$enable_libebl_subdir"])
198 AC_SUBST([LIBEBL_SUBDIR])
199 AC_DEFINE_UNQUOTED(LIBEBL_SUBDIR, "$LIBEBL_SUBDIR")
200 AH_TEMPLATE([LIBEBL_SUBDIR], [$libdir subdirectory containing libebl modules.])
202 dnl Test for zlib and bzlib, gives ZLIB/BZLIB .am
203 dnl conditional and config.h USE_ZLIB/USE_BZLIB #define.
206 eu_ZIPLIB(zlib,ZLIB,z,gzdirect,gzip)
207 eu_ZIPLIB(bzlib,BZLIB,bz2,BZ2_bzdopen,bzip2)
208 eu_ZIPLIB(lzma,LZMA,lzma,lzma_auto_decoder,[LZMA (xz)])
213 AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl
214 AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])])
215 AM_CONDITIONAL(DEMANGLE, test "$ac_cv_lib_stdcpp___cxa_demangle" = yes)
217 dnl The directories with content.
220 dnl Commented out for now.
221 dnl AC_CONFIG_FILES([doc/Makefile])
224 AC_CONFIG_FILES([lib/Makefile])
227 AC_CONFIG_FILES([libelf/Makefile])
229 dnl Higher-level ELF support library.
230 AC_CONFIG_FILES([libebl/Makefile])
233 AC_CONFIG_FILES([libdw/Makefile])
235 dnl Higher-level DWARF support library.
236 AC_CONFIG_FILES([libdwfl/Makefile])
238 dnl CPU handling library.
239 AC_CONFIG_FILES([libcpu/Makefile])
241 dnl Assembler library.
242 AM_CONDITIONAL(HAVE_LIBASM, true)dnl Used in tests/Makefile.am, which see.
243 AC_CONFIG_FILES([libasm/Makefile])
245 dnl CPU-specific backend libraries.
246 AC_CONFIG_FILES([backends/Makefile])
249 AC_CONFIG_FILES([src/Makefile po/Makefile.in])
252 AM_CONDITIONAL(STANDALONE, false)dnl Used in tests/Makefile.am, which see.
253 AC_CONFIG_FILES([tests/Makefile])
255 # Get the definitions necessary to create the Makefiles in the po
256 # subdirectories. This is a small subset of the gettext rules.
257 AC_SUBST(USE_NLS, yes)
260 dnl Appended to the config.h file.
261 dnl We hide all kinds of configuration magic in lib/eu-config.h.
262 AH_BOTTOM([#include <eu-config.h>])
264 dnl Version compatibility header.
265 AC_CONFIG_FILES([version.h:config/version.h.in])
266 AC_SUBST([eu_version])
268 # 1.234<whatever> -> 1234<whatever>
269 case "$PACKAGE_VERSION" in
270 [[0-9]].*) eu_version=`echo "$PACKAGE_VERSION" | sed 's@\.@@'` ;;
271 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
273 case "$eu_version" in
275 # 1234.567 -> "1234", "567"
276 eu_extra_version="${eu_version#*.}"
277 eu_version="${eu_version%%.*}"
278 case "$eu_extra_version" in
279 [[0-9]][[0-9]][[0-9]]) ;;
280 [[0-9]][[0-9]]) eu_extra_version="${eu_extra_version}0" ;;
281 [[0-9]]) eu_extra_version="${eu_extra_version}00" ;;
282 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
290 case "$eu_version" in
291 0[[0-9]][[0-9]][[0-9]]) eu_version="${eu_version#0}$eu_extra_version" ;;
292 [[0-9]][[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}$eu_extra_version" ;;
293 [[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}0$eu_extra_version" ;;
294 [[0-9]][[0-9]]) eu_version="${eu_version}00$eu_extra_version";;
295 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
298 # Round up to the next release API (x.y) version.
299 eu_version=$(( (eu_version + 999) / 1000 ))