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],[0.155],[https://bugzilla.redhat.com/],[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.])
71 AS_HELP_STRING([--enable-dwz], [enable experimental GNU ref_alt FORM, dwz multi file support in libdw]),
72 enable_dwz=$enableval, enable_dwz=no)
73 AM_CONDITIONAL(ENABLE_DWZ, test "$enable_dwz" = yes)
74 AS_IF([test "$enable_dwz" = yes], [AC_DEFINE(ENABLE_DWZ)])
76 AH_TEMPLATE([ENABLE_DWZ], [Defined if libdw should support GNU ref_alt FORM, dwz multi files.])
83 AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl
85 CFLAGS="$CFLAGS -std=gnu99"
86 AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
87 int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; }])],
88 ac_cv_c99=yes, ac_cv_c99=no)
89 CFLAGS="$old_CFLAGS"])
90 AS_IF([test "x$ac_cv_c99" != xyes],
91 AC_MSG_ERROR([gcc with C99 support required]))
93 AC_CACHE_CHECK([for __thread support], ac_cv_tls, [dnl
94 # Use the same flags that we use for our DSOs, so the test is representative.
95 # Some old compiler/linker/libc combinations fail some ways and not others.
97 save_LDFLAGS="$LDFLAGS"
98 CFLAGS="-fpic $CFLAGS"
99 LDFLAGS="-shared -Wl,-z,defs,-z,relro $LDFLAGS"
101 AC_LANG_PROGRAM([[#undef __thread
102 static __thread int a; int foo (int b) { return a + b; }]],
103 [[exit (foo (0));]])],
104 ac_cv_tls=yes, ac_cv_tls=no)
105 CFLAGS="$save_CFLAGS"
106 LDFLAGS="$save_LDFLAGS"])
107 AS_IF([test "x$ac_cv_tls" != xyes],
108 AC_MSG_ERROR([__thread support required]))
110 dnl This test must come as early as possible after the compiler configuration
111 dnl tests, because the choice of the file model can (in principle) affect
112 dnl whether functions and headers are available, whether they work, etc.
115 dnl Enable the linker to be build as a native-only linker. By default it
116 dnl can handle all architectures but this comes at a cost. A native
117 dnl will be slightly faster, small, and has fewer dependencies.
119 AC_ARG_ENABLE([generic],
120 AS_HELP_STRING([--disable-generic], [do not build generic linker]), [dnl
121 if test "$enable_generic" = no; then
124 AC_DEFINE(NATIVE_ELF, 32)
129 AC_MSG_ERROR([no machine-specific linker for this configuration available])
133 AH_TEMPLATE([NATIVE_ELF],
134 [Define to 32 or 64 if a specific implementation is wanted.])
135 AM_CONDITIONAL(NATIVE_LD, test "$native_ld" = yes)
136 dnl The automake generated Makefile cannot deal with macros in the name
137 dnl of files if at any time there is no such file, even if the filename
138 dnl would not be used.
139 AS_IF([test -z "$base_cpu"], [base_cpu=none])
141 dnl Support to work around automake's inflexible dependency generation.
142 dnl See src/Makefile.am for more information.
143 AM_CONDITIONAL(NEVER, false)
145 dnl Enable debugging via mudflap. This option will cause most libraries
146 dnl to be built as archives which are statically linked into the applications.
147 dnl All code, as far as possible, is compiled instrumented to catch all
148 dnl the bugs valgrind is able to catch.
150 AC_ARG_ENABLE([mudflap],
151 AS_HELP_STRING([--enable-mudflap],
152 [build binaries with mudflap instrumentation]), [dnl
153 if test "x$enable_mudflap" = xyes; then
154 # Check whether the compiler support -fmudflap.
156 CFLAGS="$CFLAGS -fmudflap"
157 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[use_mudflap=yes],[use_mudflap=fail])
160 if test "$use_mudflap" = fail; then
161 AC_MSG_FAILURE([--enable-mudflap requires a compiler which understands this option])
163 AM_CONDITIONAL(MUDFLAP, test "$use_mudflap" = yes)
165 dnl enable debugging of branch prediction.
166 AC_ARG_ENABLE([debugpred],
167 AS_HELP_STRING([--enable-debugpred],[build binaries with support to debug branch prediction]),
168 [use_debugpred=$enableval], [use_debugpred=no])
169 case $use_debugpred in
170 yes) use_debugpred=1 ;;
171 *) use_debugpred=0 ;;
173 AC_SUBST([DEBUGPRED], $use_debugpred)
175 dnl Enable gprof suport.
176 AC_ARG_ENABLE([gprof],
177 AS_HELP_STRING([--enable-gprof],[build binaries with gprof support]), [use_gprof=$enableval], [use_gprof=no])
178 if test "$use_gprof" = yes; then
180 LDFLAGS="$LDFLAGS -pg"
182 AM_CONDITIONAL(GPROF, test "$use_gprof" = yes)
184 # Enable gcov suport.
185 AC_ARG_ENABLE([gcov],
186 AS_HELP_STRING([--enable-gcov],[build binaries with gcov support]), [use_gcov=$enableval], [use_gcov=no])
187 if test "$use_gcov" = yes; then
188 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
189 LDFLAGS="$LDFLAGS -fprofile-arcs"
191 AM_CONDITIONAL(GCOV, test "$use_gcov" = yes)
193 AM_CONDITIONAL(BUILD_STATIC, [dnl
194 test "$use_mudflap" = yes -o "$use_gprof" = yes -o "$use_gcov" = yes])
196 AC_ARG_ENABLE([tests-rpath],
197 AS_HELP_STRING([--enable-tests-rpath],[build $ORIGIN-using rpath into tests]),
198 [tests_use_rpath=$enableval], [tests_use_rpath=no])
199 AM_CONDITIONAL(TESTS_RPATH, test "$tests_use_rpath" = yes)
201 LIBEBL_SUBDIR="$PACKAGE"
202 AC_ARG_ENABLE([libebl-subdir],
203 AS_HELP_STRING([--enable-libebl-subdir=DIR],
204 [install libebl_CPU modules in $(libdir)/DIR]), [dnl
205 LIBEBL_SUBDIR="$enable_libebl_subdir"])
206 AC_SUBST([LIBEBL_SUBDIR])
207 AC_DEFINE_UNQUOTED(LIBEBL_SUBDIR, "$LIBEBL_SUBDIR")
208 AH_TEMPLATE([LIBEBL_SUBDIR], [$libdir subdirectory containing libebl modules.])
210 dnl Test for zlib and bzlib, gives ZLIB/BZLIB .am
211 dnl conditional and config.h USE_ZLIB/USE_BZLIB #define.
214 eu_ZIPLIB(zlib,ZLIB,z,gzdirect,gzip)
215 eu_ZIPLIB(bzlib,BZLIB,bz2,BZ2_bzdopen,bzip2)
216 eu_ZIPLIB(lzma,LZMA,lzma,lzma_auto_decoder,[LZMA (xz)])
221 AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl
222 AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])])
223 AM_CONDITIONAL(DEMANGLE, test "$ac_cv_lib_stdcpp___cxa_demangle" = yes)
225 dnl The directories with content.
228 dnl Commented out for now.
229 dnl AC_CONFIG_FILES([doc/Makefile])
232 AC_CONFIG_FILES([lib/Makefile])
235 AC_CONFIG_FILES([libelf/Makefile])
237 dnl Higher-level ELF support library.
238 AC_CONFIG_FILES([libebl/Makefile])
241 AC_CONFIG_FILES([libdw/Makefile])
243 dnl Higher-level DWARF support library.
244 AC_CONFIG_FILES([libdwfl/Makefile])
246 dnl CPU handling library.
247 AC_CONFIG_FILES([libcpu/Makefile])
249 dnl Assembler library.
250 AM_CONDITIONAL(HAVE_LIBASM, true)dnl Used in tests/Makefile.am, which see.
251 AC_CONFIG_FILES([libasm/Makefile])
253 dnl CPU-specific backend libraries.
254 AC_CONFIG_FILES([backends/Makefile])
257 AC_CONFIG_FILES([src/Makefile po/Makefile.in])
260 AM_CONDITIONAL(STANDALONE, false)dnl Used in tests/Makefile.am, which see.
261 AC_CONFIG_FILES([tests/Makefile])
263 # Get the definitions necessary to create the Makefiles in the po
264 # subdirectories. This is a small subset of the gettext rules.
265 AC_SUBST(USE_NLS, yes)
268 dnl Appended to the config.h file.
269 dnl We hide all kinds of configuration magic in lib/eu-config.h.
270 AH_BOTTOM([#include <eu-config.h>])
272 dnl Version compatibility header.
273 AC_CONFIG_FILES([version.h:config/version.h.in])
274 AC_SUBST([eu_version])
276 # 1.234<whatever> -> 1234<whatever>
277 case "$PACKAGE_VERSION" in
278 [[0-9]].*) eu_version=`echo "$PACKAGE_VERSION" | sed 's@\.@@'` ;;
279 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
281 case "$eu_version" in
283 # 1234.567 -> "1234", "567"
284 eu_extra_version="${eu_version#*.}"
285 eu_version="${eu_version%%.*}"
286 case "$eu_extra_version" in
287 [[0-9]][[0-9]][[0-9]]) ;;
288 [[0-9]][[0-9]]) eu_extra_version="${eu_extra_version}0" ;;
289 [[0-9]]) eu_extra_version="${eu_extra_version}00" ;;
290 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
298 case "$eu_version" in
299 0[[0-9]][[0-9]][[0-9]]) eu_version="${eu_version#0}$eu_extra_version" ;;
300 [[0-9]][[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}$eu_extra_version" ;;
301 [[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}0$eu_extra_version" ;;
302 [[0-9]][[0-9]]) eu_version="${eu_version}00$eu_extra_version";;
303 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
306 # Round up to the next release API (x.y) version.
307 eu_version=$(( (eu_version + 999) / 1000 ))