1 dnl Process this file with autoconf to produce a configure script.
2 dnl Configure input file for elfutils. -*-autoconf-*-
4 dnl Copyright (C) 1996-2015 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],[0.161],[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 "$use_locks" = yes],
69 [AC_MSG_WARN([thread-safety is EXPERIMENTAL tests might fail.])])
71 AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.])
77 # Only available since automake 1.12
78 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
79 AC_CHECK_TOOL([READELF], [readelf])
80 AC_CHECK_TOOL([NM], [nm])
82 AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl
84 CFLAGS="$CFLAGS -std=gnu99"
85 AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl
86 int foo (int a) { for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; return s;}])],
87 ac_cv_c99=yes, ac_cv_c99=no)
88 CFLAGS="$old_CFLAGS"])
89 AS_IF([test "x$ac_cv_c99" != xyes],
90 AC_MSG_ERROR([gcc with C99 support required]))
92 AC_CACHE_CHECK([for __thread support], ac_cv_tls, [dnl
93 # Use the same flags that we use for our DSOs, so the test is representative.
94 # Some old compiler/linker/libc combinations fail some ways and not others.
96 save_LDFLAGS="$LDFLAGS"
97 CFLAGS="-fpic $CFLAGS"
98 LDFLAGS="-shared -Wl,-z,defs,-z,relro $LDFLAGS"
100 AC_LANG_PROGRAM([[#include <stdlib.h>
102 static __thread int a; int foo (int b) { return a + b; }]],
103 [[exit (foo (0));]])],
104 ac_cv_tls=yes, ac_cv_tls=no)
105 CFLAGS="$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 "$base_cpu"], [base_cpu=none])
141 dnl Support to work around automake's inflexible dependency generation.
142 dnl See src/Makefile.am for more information.
143 AM_CONDITIONAL(NEVER, false)
145 dnl enable debugging of branch prediction.
146 AC_ARG_ENABLE([debugpred],
147 AS_HELP_STRING([--enable-debugpred],[build binaries with support to debug branch prediction]),
148 [use_debugpred=$enableval], [use_debugpred=no])
149 case $use_debugpred in
150 yes) use_debugpred=1 ;;
151 *) use_debugpred=0 ;;
153 AC_SUBST([DEBUGPRED], $use_debugpred)
155 dnl Enable gprof suport.
156 AC_ARG_ENABLE([gprof],
157 AS_HELP_STRING([--enable-gprof],[build binaries with gprof support]), [use_gprof=$enableval], [use_gprof=no])
158 if test "$use_gprof" = yes; then
160 LDFLAGS="$LDFLAGS -pg"
162 AM_CONDITIONAL(GPROF, test "$use_gprof" = yes)
164 # Enable gcov suport.
165 AC_ARG_ENABLE([gcov],
166 AS_HELP_STRING([--enable-gcov],[build binaries with gcov support]), [use_gcov=$enableval], [use_gcov=no])
167 if test "$use_gcov" = yes; then
168 CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
169 LDFLAGS="$LDFLAGS -fprofile-arcs"
171 AM_CONDITIONAL(GCOV, test "$use_gcov" = yes)
173 AC_ARG_ENABLE([valgrind],
174 AS_HELP_STRING([--enable-valgrind],[run all tests under valgrind]),
175 [use_valgrind=$enableval], [use_valgrind=no])
176 if test "$use_valgrind" = yes; then
177 AC_CHECK_PROG(HAVE_VALGRIND, valgrind, yes, no)
178 if test "$HAVE_VALGRIND" = "no"; then
179 AC_MSG_ERROR([valgrind not found])
182 AM_CONDITIONAL(USE_VALGRIND, test "$use_valgrind" = yes)
184 AM_CONDITIONAL(BUILD_STATIC, [dnl
185 test "$use_gprof" = yes -o "$use_gcov" = yes])
187 AC_ARG_ENABLE([tests-rpath],
188 AS_HELP_STRING([--enable-tests-rpath],[build $ORIGIN-using rpath into tests]),
189 [tests_use_rpath=$enableval], [tests_use_rpath=no])
190 AM_CONDITIONAL(TESTS_RPATH, test "$tests_use_rpath" = yes)
192 LIBEBL_SUBDIR="$PACKAGE"
193 AC_ARG_ENABLE([libebl-subdir],
194 AS_HELP_STRING([--enable-libebl-subdir=DIR],
195 [install libebl_CPU modules in $(libdir)/DIR]), [dnl
196 LIBEBL_SUBDIR="$enable_libebl_subdir"])
197 AC_SUBST([LIBEBL_SUBDIR])
198 AC_DEFINE_UNQUOTED(LIBEBL_SUBDIR, "$LIBEBL_SUBDIR")
199 AH_TEMPLATE([LIBEBL_SUBDIR], [$libdir subdirectory containing libebl modules.])
201 dnl Test for zlib and bzlib, gives ZLIB/BZLIB .am
202 dnl conditional and config.h USE_ZLIB/USE_BZLIB #define.
205 eu_ZIPLIB(zlib,ZLIB,z,gzdirect,gzip)
206 eu_ZIPLIB(bzlib,BZLIB,bz2,BZ2_bzdopen,bzip2)
207 eu_ZIPLIB(lzma,LZMA,lzma,lzma_auto_decoder,[LZMA (xz)])
212 AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl
213 AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])])
214 AM_CONDITIONAL(DEMANGLE, test "$ac_cv_lib_stdcpp___cxa_demangle" = yes)
216 AC_ARG_ENABLE([textrelcheck],
217 AS_HELP_STRING([--disable-textrelcheck],
218 [Disable textrelcheck being a fatal error]))
219 AM_CONDITIONAL(FATAL_TEXTREL, [test "x$enable_textrelcheck" != "xno"])
221 dnl The directories with content.
224 dnl Commented out for now.
225 dnl AC_CONFIG_FILES([doc/Makefile])
228 AC_CONFIG_FILES([lib/Makefile])
231 AC_CONFIG_FILES([libelf/Makefile])
233 dnl Higher-level ELF support library.
234 AC_CONFIG_FILES([libebl/Makefile])
236 dnl DWARF-ELF Lower-level Functions support library.
237 AC_CONFIG_FILES([libdwelf/Makefile])
240 AC_CONFIG_FILES([libdw/Makefile])
242 dnl Higher-level DWARF support library.
243 AC_CONFIG_FILES([libdwfl/Makefile])
245 dnl CPU handling library.
246 AC_CONFIG_FILES([libcpu/Makefile])
248 dnl Assembler library.
249 AM_CONDITIONAL(HAVE_LIBASM, true)dnl Used in tests/Makefile.am, which see.
250 AC_CONFIG_FILES([libasm/Makefile])
252 dnl CPU-specific backend libraries.
253 AC_CONFIG_FILES([backends/Makefile])
256 AC_CONFIG_FILES([src/Makefile po/Makefile.in])
259 AM_CONDITIONAL(STANDALONE, false)dnl Used in tests/Makefile.am, which see.
260 AC_CONFIG_FILES([tests/Makefile])
262 # Get the definitions necessary to create the Makefiles in the po
263 # subdirectories. This is a small subset of the gettext rules.
264 AC_SUBST(USE_NLS, yes)
267 dnl Appended to the config.h file.
268 dnl We hide all kinds of configuration magic in lib/eu-config.h.
269 AH_BOTTOM([#include <eu-config.h>])
271 dnl Version compatibility header.
272 AC_CONFIG_FILES([version.h:config/version.h.in])
273 AC_SUBST([eu_version])
275 # 1.234<whatever> -> 1234<whatever>
276 case "$PACKAGE_VERSION" in
277 [[0-9]].*) eu_version=`echo "$PACKAGE_VERSION" | sed 's@\.@@'` ;;
278 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
280 case "$eu_version" in
282 # 1234.567 -> "1234", "567"
283 eu_extra_version="${eu_version#*.}"
284 eu_version="${eu_version%%.*}"
285 case "$eu_extra_version" in
286 [[0-9]][[0-9]][[0-9]]) ;;
287 [[0-9]][[0-9]]) eu_extra_version="${eu_extra_version}0" ;;
288 [[0-9]]) eu_extra_version="${eu_extra_version}00" ;;
289 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
297 case "$eu_version" in
298 0[[0-9]][[0-9]][[0-9]]) eu_version="${eu_version#0}$eu_extra_version" ;;
299 [[0-9]][[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}$eu_extra_version" ;;
300 [[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}0$eu_extra_version" ;;
301 [[0-9]][[0-9]]) eu_version="${eu_version}00$eu_extra_version";;
302 *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;;
305 # Round up to the next release API (x.y) version.
306 eu_version=$(( (eu_version + 999) / 1000 ))
308 AC_CHECK_SIZEOF(long)
310 # On aarch64 before glibc 2.20 we would get the kernel user_pt_regs instead
311 # of the user_regs_struct from sys/user.h. They are structurally the same
312 # but we get either one or the other.
313 AC_CHECK_TYPE([struct user_regs_struct],
314 [sys_user_has_user_regs=yes], [sys_user_has_user_regs=no],
315 [[#include <sys/ptrace.h>]
316 [#include <sys/time.h>]
317 [#include <sys/user.h>]])
318 if test "$sys_user_has_user_regs" = "yes"; then
319 AC_DEFINE(HAVE_SYS_USER_REGS, 1,
320 [Define to 1 if <sys/user.h> defines struct user_regs_struct])
323 # On a 64-bit host where can can use $CC -m32, we'll run two sets of tests.
324 # Likewise in a 32-bit build on a host where $CC -m64 works.
326 # `$utrace_biarch' will be `-m64' even on an uniarch i386 machine.
327 CC_BIARCH="$CC $utrace_biarch"
328 AC_SUBST([CC_BIARCH])