Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | dnl Process this file with autoconf to produce a configure script. |
| 2 | dnl Configure input file for elfutils. -*-autoconf-*- |
| 3 | dnl |
Mark Wielaard | afffdff | 2018-03-18 00:24:08 +0100 | [diff] [blame] | 4 | dnl Copyright (C) 1996-2018 Red Hat, Inc. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 5 | dnl |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 6 | dnl This file is part of elfutils. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 7 | dnl |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 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. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 12 | dnl |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 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. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 17 | dnl |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 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/>. |
Mark Wielaard | 89f5c7b | 2019-02-14 13:29:39 +0100 | [diff] [blame] | 20 | AC_INIT([elfutils],[0.176],[https://sourceware.org/bugzilla],[elfutils],[http://elfutils.org/]) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 21 | |
Mark Wielaard | 34b037b | 2017-01-12 11:43:30 +0100 | [diff] [blame] | 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/"])]) |
| 27 | |
Mark Wielaard | 9ba2458 | 2016-03-02 15:04:43 +0100 | [diff] [blame] | 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. |
| 32 | |
| 33 | if test "x$program_prefix" = "xNONE"; then |
| 34 | AC_MSG_NOTICE([No --program-prefix given, using "eu-"]) |
| 35 | program_prefix="eu-" |
| 36 | elif test "x$program_prefix" = "x"; then |
| 37 | AC_MSG_NOTICE([Using no program-prefix]) |
| 38 | program_prefix=NONE |
| 39 | fi |
| 40 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 41 | AC_CONFIG_AUX_DIR([config]) |
| 42 | AC_CONFIG_FILES([config/Makefile]) |
| 43 | |
Mark Wielaard | afffdff | 2018-03-18 00:24:08 +0100 | [diff] [blame] | 44 | AC_COPYRIGHT([Copyright (C) 1996-2018 The elfutils developers.]) |
Ulrich Drepper | db12f16 | 2009-09-21 08:04:38 -0700 | [diff] [blame] | 45 | AC_PREREQ(2.63) dnl Minimum Autoconf version required. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 46 | |
Roland McGrath | 9aa8ef7 | 2007-05-18 08:59:43 +0000 | [diff] [blame] | 47 | dnl We use GNU make extensions; automake 1.10 defaults to -Wportability. |
Mark Wielaard | 86be792 | 2013-04-26 23:44:25 +0200 | [diff] [blame] | 48 | AM_INIT_AUTOMAKE([gnits 1.11 -Wno-portability dist-bzip2 no-dist-gzip parallel-tests]) |
Roland McGrath | c373d85 | 2006-10-10 00:25:21 +0000 | [diff] [blame] | 49 | AM_MAINTAINER_MODE |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 50 | |
Mark Wielaard | c04f491 | 2015-10-07 13:37:56 +0200 | [diff] [blame] | 51 | AM_SILENT_RULES([yes]) |
| 52 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 53 | AC_CONFIG_SRCDIR([libelf/libelf.h]) |
| 54 | AC_CONFIG_FILES([Makefile]) |
| 55 | AC_CONFIG_HEADERS([config.h]) |
| 56 | |
| 57 | AC_CONFIG_MACRO_DIR([m4]) |
| 58 | AC_CONFIG_FILES([m4/Makefile]) |
| 59 | |
| 60 | dnl The RPM spec file. We substitute a few values in the file. |
| 61 | AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in]) |
| 62 | |
| 63 | |
| 64 | AC_CANONICAL_HOST |
| 65 | |
Roland McGrath | 3284b79 | 2012-01-20 12:51:46 -0800 | [diff] [blame] | 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 |
| 71 | else |
| 72 | default_ar_deterministic=true |
| 73 | fi], [default_ar_deterministic=false]) |
| 74 | AC_DEFINE_UNQUOTED(DEFAULT_AR_DETERMINISTIC, $default_ar_deterministic, |
| 75 | [Should ar and ranlib use -D behavior by default?]) |
| 76 | |
Ulrich Drepper | 7e678fa | 2009-01-10 18:02:05 -0800 | [diff] [blame] | 77 | AC_ARG_ENABLE([thread-safety], |
Mark Wielaard | 09c9bb9 | 2013-11-06 12:21:32 +0100 | [diff] [blame] | 78 | AS_HELP_STRING([--enable-thread-safety], |
| 79 | [enable thread safety of libraries EXPERIMENTAL]), |
| 80 | use_locks=$enableval, use_locks=no) |
Ulrich Drepper | 7e678fa | 2009-01-10 18:02:05 -0800 | [diff] [blame] | 81 | AM_CONDITIONAL(USE_LOCKS, test "$use_locks" = yes) |
| 82 | AS_IF([test "$use_locks" = yes], [AC_DEFINE(USE_LOCKS)]) |
Mark Wielaard | 09c9bb9 | 2013-11-06 12:21:32 +0100 | [diff] [blame] | 83 | AS_IF([test "$use_locks" = yes], |
| 84 | [AC_MSG_WARN([thread-safety is EXPERIMENTAL tests might fail.])]) |
Ulrich Drepper | d56e232 | 2008-08-16 03:09:13 +0000 | [diff] [blame] | 85 | |
Ulrich Drepper | 7e678fa | 2009-01-10 18:02:05 -0800 | [diff] [blame] | 86 | AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.]) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 87 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 88 | AC_PROG_CC |
| 89 | AC_PROG_RANLIB |
| 90 | AC_PROG_YACC |
| 91 | AM_PROG_LEX |
Michael Forney | a45c804 | 2013-11-01 00:51:04 -0700 | [diff] [blame] | 92 | # Only available since automake 1.12 |
| 93 | m4_ifdef([AM_PROG_AR], [AM_PROG_AR]) |
| 94 | AC_CHECK_TOOL([READELF], [readelf]) |
| 95 | AC_CHECK_TOOL([NM], [nm]) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 96 | |
Mark Wielaard | aba6d76 | 2015-04-14 10:18:37 +0200 | [diff] [blame] | 97 | # We use -std=gnu99 but have explicit checks for some language constructs |
| 98 | # and GNU extensions since some compilers claim GNU99 support, but don't |
| 99 | # really support all language extensions. In particular we need |
| 100 | # Mixed Declarations and Code |
| 101 | # https://gcc.gnu.org/onlinedocs/gcc/Mixed-Declarations.html |
| 102 | # Nested Functions |
| 103 | # https://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html |
| 104 | # Arrays of Variable Length |
| 105 | # https://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html |
| 106 | AC_CACHE_CHECK([for gcc with GNU99 support], ac_cv_c99, [dnl |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 107 | old_CFLAGS="$CFLAGS" |
| 108 | CFLAGS="$CFLAGS -std=gnu99" |
Roland McGrath | f64e25f | 2011-02-08 19:36:50 -0800 | [diff] [blame] | 109 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl |
Mark Wielaard | aba6d76 | 2015-04-14 10:18:37 +0200 | [diff] [blame] | 110 | int foo (int a) |
| 111 | { |
| 112 | for (int i = 0; i < a; ++i) if (i % 4) break; int s = a; return s; |
| 113 | } |
| 114 | |
| 115 | double bar (double a, double b) |
| 116 | { |
| 117 | double square (double z) { return z * z; } |
| 118 | return square (a) + square (b); |
| 119 | } |
| 120 | |
| 121 | void baz (int n) |
| 122 | { |
| 123 | struct S { int x[[n]]; }; |
| 124 | }])], |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 125 | ac_cv_c99=yes, ac_cv_c99=no) |
| 126 | CFLAGS="$old_CFLAGS"]) |
| 127 | AS_IF([test "x$ac_cv_c99" != xyes], |
Mark Wielaard | aba6d76 | 2015-04-14 10:18:37 +0200 | [diff] [blame] | 128 | AC_MSG_ERROR([gcc with GNU99 support required])) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 129 | |
Ulf Hermann | 1127470 | 2017-08-18 13:06:36 +0200 | [diff] [blame] | 130 | AC_CACHE_CHECK([whether gcc supports __attribute__((visibility()))], |
| 131 | ac_cv_visibility, [dnl |
| 132 | save_CFLAGS="$CFLAGS" |
| 133 | CFLAGS="$save_CFLAGS -Werror" |
| 134 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl |
| 135 | int __attribute__((visibility("hidden"))) |
| 136 | foo (int a) |
| 137 | { |
| 138 | return a; |
| 139 | }])], ac_cv_visibility=yes, ac_cv_visibility=no) |
| 140 | CFLAGS="$save_CFLAGS"]) |
| 141 | if test "$ac_cv_visibility" = "yes"; then |
| 142 | AC_DEFINE([HAVE_VISIBILITY], [1], |
| 143 | [Defined if __attribute__((visibility())) is supported]) |
| 144 | fi |
| 145 | |
Ulf Hermann | 17d7194 | 2017-08-18 14:05:10 +0200 | [diff] [blame] | 146 | AC_CACHE_CHECK([whether gcc supports __attribute__((gcc_struct))], |
| 147 | ac_cv_gcc_struct, [dnl |
| 148 | save_CFLAGS="$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 "$ac_cv_gcc_struct" = "yes"; then |
| 155 | AC_DEFINE([HAVE_GCC_STRUCT], [1], |
| 156 | [Defined if __attribute__((gcc_struct)) is supported]) |
| 157 | fi |
| 158 | |
Ulf Hermann | 0773758 | 2017-08-18 12:41:11 +0200 | [diff] [blame] | 159 | AC_CACHE_CHECK([whether gcc supports -fPIC], ac_cv_fpic, [dnl |
| 160 | save_CFLAGS="$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" |
| 164 | ]) |
| 165 | if test "$ac_cv_fpic" = "yes"; then |
| 166 | fpic_CFLAGS="-fPIC" |
| 167 | else |
| 168 | fpic_CFLAGS="" |
| 169 | fi |
| 170 | AC_SUBST([fpic_CFLAGS]) |
| 171 | |
| 172 | AC_CACHE_CHECK([whether gcc supports -fPIE], ac_cv_fpie, [dnl |
| 173 | save_CFLAGS="$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" |
| 177 | ]) |
| 178 | if test "$ac_cv_fpie" = "yes"; then |
| 179 | fpie_CFLAGS="-fPIE" |
| 180 | else |
| 181 | fpie_CFLAGS="" |
| 182 | fi |
| 183 | AC_SUBST([fpie_CFLAGS]) |
| 184 | |
| 185 | dso_LDFLAGS="-shared" |
| 186 | |
| 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" |
| 193 | ]) |
| 194 | if test "$ac_cv_zdefs" = "yes"; then |
| 195 | dso_LDFLAGS="$dso_LDFLAGS $ZDEFS_LDFLAGS" |
| 196 | fi |
| 197 | |
| 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" |
| 204 | ]) |
| 205 | if test "$ac_cv_zrelro" = "yes"; then |
| 206 | dso_LDFLAGS="$dso_LDFLAGS $ZRELRO_LDFLAGS" |
| 207 | fi |
| 208 | |
| 209 | AC_SUBST([dso_LDFLAGS]) |
| 210 | |
Roland McGrath | 8181739 | 2009-01-23 03:23:02 -0800 | [diff] [blame] | 211 | AC_CACHE_CHECK([for __thread support], ac_cv_tls, [dnl |
Roland McGrath | e72bf15 | 2009-01-23 14:27:39 -0800 | [diff] [blame] | 212 | # Use the same flags that we use for our DSOs, so the test is representative. |
| 213 | # Some old compiler/linker/libc combinations fail some ways and not others. |
| 214 | save_CFLAGS="$CFLAGS" |
| 215 | save_LDFLAGS="$LDFLAGS" |
Ulf Hermann | 0773758 | 2017-08-18 12:41:11 +0200 | [diff] [blame] | 216 | CFLAGS="$fpic_CFLAGS $CFLAGS" |
| 217 | LDFLAGS="$dso_LDFLAGS $LDFLAGS" |
Roland McGrath | 8181739 | 2009-01-23 03:23:02 -0800 | [diff] [blame] | 218 | AC_LINK_IFELSE([dnl |
Mark Wielaard | 0a35e3a | 2015-03-13 23:51:40 +0100 | [diff] [blame] | 219 | AC_LANG_PROGRAM([[#include <stdlib.h> |
| 220 | #undef __thread |
Roland McGrath | e72bf15 | 2009-01-23 14:27:39 -0800 | [diff] [blame] | 221 | static __thread int a; int foo (int b) { return a + b; }]], |
Roland McGrath | 8181739 | 2009-01-23 03:23:02 -0800 | [diff] [blame] | 222 | [[exit (foo (0));]])], |
Roland McGrath | e72bf15 | 2009-01-23 14:27:39 -0800 | [diff] [blame] | 223 | ac_cv_tls=yes, ac_cv_tls=no) |
| 224 | CFLAGS="$save_CFLAGS" |
| 225 | LDFLAGS="$save_LDFLAGS"]) |
Ulrich Drepper | 7e678fa | 2009-01-10 18:02:05 -0800 | [diff] [blame] | 226 | AS_IF([test "x$ac_cv_tls" != xyes], |
Roland McGrath | 8181739 | 2009-01-23 03:23:02 -0800 | [diff] [blame] | 227 | AC_MSG_ERROR([__thread support required])) |
Ulrich Drepper | 7e678fa | 2009-01-10 18:02:05 -0800 | [diff] [blame] | 228 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 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. |
| 232 | AC_SYS_LARGEFILE |
| 233 | |
Mark Wielaard | ee22502 | 2016-11-23 20:51:35 +0100 | [diff] [blame] | 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"]) |
| 242 | |
Mark Wielaard | 01b994e | 2017-02-09 21:09:54 +0100 | [diff] [blame] | 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]) |
| 247 | case "$CFLAGS" in |
| 248 | *-D_FORTIFY_SOURCE=2*) |
| 249 | AC_MSG_RESULT([no, already there]) |
| 250 | ;; |
| 251 | *) |
| 252 | save_CFLAGS="$CFLAGS" |
| 253 | CFLAGS="-D_FORTIFY_SOURCE=2 -Werror $CFLAGS" |
| 254 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ |
| 255 | #include <string.h> |
| 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"]) |
| 261 | ;; |
| 262 | esac |
| 263 | |
Ulrich Drepper | 3cbdd38 | 2008-01-02 17:44:39 +0000 | [diff] [blame] | 264 | dnl enable debugging of branch prediction. |
Ulrich Drepper | 28a0c61 | 2008-01-21 18:57:48 +0000 | [diff] [blame] | 265 | AC_ARG_ENABLE([debugpred], |
Ulrich Drepper | db12f16 | 2009-09-21 08:04:38 -0700 | [diff] [blame] | 266 | AS_HELP_STRING([--enable-debugpred],[build binaries with support to debug branch prediction]), |
Mike Frysinger | 8f3002e | 2011-10-08 15:09:15 -0700 | [diff] [blame] | 267 | [use_debugpred=$enableval], [use_debugpred=no]) |
| 268 | case $use_debugpred in |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 269 | yes) use_debugpred_val=1 ;; |
| 270 | *) use_debugpred_val=0 ;; |
Mike Frysinger | 8f3002e | 2011-10-08 15:09:15 -0700 | [diff] [blame] | 271 | esac |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 272 | AC_SUBST([DEBUGPRED], $use_debugpred_val) |
Ulrich Drepper | 3cbdd38 | 2008-01-02 17:44:39 +0000 | [diff] [blame] | 273 | |
| 274 | dnl Enable gprof suport. |
Ulrich Drepper | 47be795 | 2005-08-07 04:41:39 +0000 | [diff] [blame] | 275 | AC_ARG_ENABLE([gprof], |
Mike Frysinger | 8f3002e | 2011-10-08 15:09:15 -0700 | [diff] [blame] | 276 | AS_HELP_STRING([--enable-gprof],[build binaries with gprof support]), [use_gprof=$enableval], [use_gprof=no]) |
Ulrich Drepper | 47be795 | 2005-08-07 04:41:39 +0000 | [diff] [blame] | 277 | if test "$use_gprof" = yes; then |
| 278 | CFLAGS="$CFLAGS -pg" |
| 279 | LDFLAGS="$LDFLAGS -pg" |
| 280 | fi |
| 281 | AM_CONDITIONAL(GPROF, test "$use_gprof" = yes) |
Ulrich Drepper | fbe998a | 2005-08-29 16:27:10 +0000 | [diff] [blame] | 282 | |
| 283 | # Enable gcov suport. |
| 284 | AC_ARG_ENABLE([gcov], |
Mike Frysinger | 8f3002e | 2011-10-08 15:09:15 -0700 | [diff] [blame] | 285 | AS_HELP_STRING([--enable-gcov],[build binaries with gcov support]), [use_gcov=$enableval], [use_gcov=no]) |
Ulrich Drepper | fbe998a | 2005-08-29 16:27:10 +0000 | [diff] [blame] | 286 | if test "$use_gcov" = yes; then |
| 287 | CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage" |
| 288 | LDFLAGS="$LDFLAGS -fprofile-arcs" |
| 289 | fi |
Ulrich Drepper | 39cec7a | 2005-08-30 01:22:01 +0000 | [diff] [blame] | 290 | AM_CONDITIONAL(GCOV, test "$use_gcov" = yes) |
Ulrich Drepper | fbe998a | 2005-08-29 16:27:10 +0000 | [diff] [blame] | 291 | |
Mark Wielaard | 2b250b7 | 2015-05-21 23:36:51 +0200 | [diff] [blame] | 292 | AC_ARG_ENABLE([sanitize-undefined], |
| 293 | AS_HELP_STRING([--enable-sanitize-undefined], |
| 294 | [Use gcc undefined behaviour sanitizer]), |
| 295 | [use_undefined=$enableval], [use_undefined=no]) |
| 296 | if test "$use_undefined" = yes; then |
| 297 | old_CFLAGS="$CFLAGS" |
| 298 | old_CXXFLAGS="$CXXFLAGS" |
| 299 | # We explicitly use unaligned access when possible (see ALLOW_UNALIGNED) |
| 300 | # We want to fail immediately on first error, don't try to recover. |
Mark Wielaard | 170f1bb | 2015-05-31 22:37:19 +0200 | [diff] [blame] | 301 | CFLAGS="$CFLAGS -fsanitize=undefined -fno-sanitize-recover" |
| 302 | CXXFLAGS="$CXXFLAGS -fsanitize=undefined -fno-sanitize-recover" |
| 303 | AC_LINK_IFELSE([AC_LANG_SOURCE([int main (int argc, char **argv) { return 0; }])], use_undefined=yes, use_undefined=no) |
Mark Wielaard | 2b250b7 | 2015-05-21 23:36:51 +0200 | [diff] [blame] | 304 | AS_IF([test "x$use_undefined" != xyes], |
| 305 | AC_MSG_WARN([gcc undefined behaviour sanitizer not available]) |
| 306 | CFLAGS="$old_CFLAGS" CXXFLAGS="$old_CXXFLAGS") |
| 307 | fi |
Mark Wielaard | 170f1bb | 2015-05-31 22:37:19 +0200 | [diff] [blame] | 308 | case $use_undefined in |
| 309 | yes) check_undefined_val=1 ;; |
| 310 | *) check_undefined_val=0 ;; |
| 311 | esac |
| 312 | AC_DEFINE_UNQUOTED(CHECK_UNDEFINED, $check_undefined_val, |
| 313 | [Building with -fsanitize=undefined or not]) |
Mark Wielaard | 2b250b7 | 2015-05-21 23:36:51 +0200 | [diff] [blame] | 314 | |
Mark Wielaard | e3e3ee2 | 2012-10-01 16:14:12 +0200 | [diff] [blame] | 315 | AC_ARG_ENABLE([valgrind], |
| 316 | AS_HELP_STRING([--enable-valgrind],[run all tests under valgrind]), |
| 317 | [use_valgrind=$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]) |
| 322 | fi |
| 323 | fi |
| 324 | AM_CONDITIONAL(USE_VALGRIND, test "$use_valgrind" = yes) |
| 325 | |
Mark Wielaard | b63007e | 2019-01-18 14:18:22 +0100 | [diff] [blame] | 326 | AC_ARG_ENABLE([install-elfh], |
| 327 | AS_HELP_STRING([--enable-install-elfh],[install elf.h in include dir]), |
| 328 | [install_elfh=$enableval], [install_elfh=no]) |
| 329 | AM_CONDITIONAL(INSTALL_ELFH, test "$install_elfh" = yes) |
| 330 | |
Ulrich Drepper | 47be795 | 2005-08-07 04:41:39 +0000 | [diff] [blame] | 331 | AM_CONDITIONAL(BUILD_STATIC, [dnl |
Mark Wielaard | 3232479 | 2014-04-13 17:39:57 +0200 | [diff] [blame] | 332 | test "$use_gprof" = yes -o "$use_gcov" = yes]) |
Ulrich Drepper | 47be795 | 2005-08-07 04:41:39 +0000 | [diff] [blame] | 333 | |
Roland McGrath | 1b8b446 | 2005-11-16 01:33:38 +0000 | [diff] [blame] | 334 | AC_ARG_ENABLE([tests-rpath], |
Ulrich Drepper | db12f16 | 2009-09-21 08:04:38 -0700 | [diff] [blame] | 335 | AS_HELP_STRING([--enable-tests-rpath],[build $ORIGIN-using rpath into tests]), |
Mike Frysinger | 8f3002e | 2011-10-08 15:09:15 -0700 | [diff] [blame] | 336 | [tests_use_rpath=$enableval], [tests_use_rpath=no]) |
Roland McGrath | 1b8b446 | 2005-11-16 01:33:38 +0000 | [diff] [blame] | 337 | AM_CONDITIONAL(TESTS_RPATH, test "$tests_use_rpath" = yes) |
| 338 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 339 | LIBEBL_SUBDIR="$PACKAGE" |
| 340 | AC_ARG_ENABLE([libebl-subdir], |
| 341 | AS_HELP_STRING([--enable-libebl-subdir=DIR], |
| 342 | [install libebl_CPU modules in $(libdir)/DIR]), [dnl |
| 343 | LIBEBL_SUBDIR="$enable_libebl_subdir"]) |
| 344 | AC_SUBST([LIBEBL_SUBDIR]) |
| 345 | AC_DEFINE_UNQUOTED(LIBEBL_SUBDIR, "$LIBEBL_SUBDIR") |
| 346 | AH_TEMPLATE([LIBEBL_SUBDIR], [$libdir subdirectory containing libebl modules.]) |
| 347 | |
Mark Wielaard | 528cb45 | 2015-10-16 23:07:12 +0200 | [diff] [blame] | 348 | dnl zlib is mandatory. |
Roland McGrath | bca4315 | 2009-01-05 23:59:32 -0800 | [diff] [blame] | 349 | save_LIBS="$LIBS" |
| 350 | LIBS= |
Roland McGrath | 2416964 | 2009-08-26 02:26:34 -0700 | [diff] [blame] | 351 | eu_ZIPLIB(zlib,ZLIB,z,gzdirect,gzip) |
Mike Frysinger | 2d703bf | 2016-01-14 13:46:18 -0500 | [diff] [blame] | 352 | AS_IF([test "x$with_zlib" = xno], [AC_MSG_ERROR([zlib not found but is required])]) |
Mark Wielaard | 528cb45 | 2015-10-16 23:07:12 +0200 | [diff] [blame] | 353 | LIBS="$save_LIBS" |
| 354 | |
| 355 | dnl Test for bzlib and xz/lzma, gives BZLIB/LZMALIB .am |
| 356 | dnl conditional and config.h USE_BZLIB/USE_LZMALIB #define. |
| 357 | save_LIBS="$LIBS" |
| 358 | LIBS= |
Roland McGrath | 2416964 | 2009-08-26 02:26:34 -0700 | [diff] [blame] | 359 | eu_ZIPLIB(bzlib,BZLIB,bz2,BZ2_bzdopen,bzip2) |
Mark Wielaard | 0aa60ac | 2016-01-04 21:41:52 +0100 | [diff] [blame] | 360 | # We need this since bzip2 doesn't have a pkgconfig file. |
| 361 | BZ2_LIB="$LIBS" |
| 362 | AC_SUBST([BZ2_LIB]) |
Roland McGrath | 2416964 | 2009-08-26 02:26:34 -0700 | [diff] [blame] | 363 | eu_ZIPLIB(lzma,LZMA,lzma,lzma_auto_decoder,[LZMA (xz)]) |
Mark Wielaard | 0aa60ac | 2016-01-04 21:41:52 +0100 | [diff] [blame] | 364 | AS_IF([test "x$with_lzma" = xyes], [LIBLZMA="liblzma"], [LIBLZMA=""]) |
| 365 | AC_SUBST([LIBLZMA]) |
Roland McGrath | bca4315 | 2009-01-05 23:59:32 -0800 | [diff] [blame] | 366 | zip_LIBS="$LIBS" |
| 367 | LIBS="$save_LIBS" |
| 368 | AC_SUBST([zip_LIBS]) |
| 369 | |
Akihiko Odaki | a24d52a | 2016-10-13 09:16:48 +0900 | [diff] [blame] | 370 | AC_CHECK_DECLS([memrchr, rawmemchr],[],[], |
| 371 | [#define _GNU_SOURCE |
| 372 | #include <string.h>]) |
| 373 | AC_CHECK_DECLS([powerof2],[],[],[#include <sys/param.h>]) |
Ulf Hermann | b3248e6 | 2017-02-16 10:10:30 +0100 | [diff] [blame] | 374 | AC_CHECK_DECLS([mempcpy],[],[], |
| 375 | [#define _GNU_SOURCE |
| 376 | #include <string.h>]) |
Akihiko Odaki | a24d52a | 2016-10-13 09:16:48 +0900 | [diff] [blame] | 377 | |
Mark Wielaard | afffdff | 2018-03-18 00:24:08 +0100 | [diff] [blame] | 378 | AC_CHECK_FUNCS([process_vm_readv]) |
| 379 | |
Ulrich Drepper | b4a16cf | 2011-10-02 08:33:19 -0400 | [diff] [blame] | 380 | AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl |
| 381 | AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])]) |
Max Filippov | 1ce4a45 | 2015-05-03 21:14:09 +0300 | [diff] [blame] | 382 | AM_CONDITIONAL(DEMANGLE, test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes") |
| 383 | AS_IF([test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes"], |
Mark Wielaard | e6e80da | 2015-05-01 10:31:36 +0200 | [diff] [blame] | 384 | [enable_demangler=yes],[enable_demangler=no]) |
Ulrich Drepper | b4a16cf | 2011-10-02 08:33:19 -0400 | [diff] [blame] | 385 | |
Mark Wielaard | 805ec83 | 2014-11-27 23:53:30 +0100 | [diff] [blame] | 386 | AC_ARG_ENABLE([textrelcheck], |
| 387 | AS_HELP_STRING([--disable-textrelcheck], |
| 388 | [Disable textrelcheck being a fatal error])) |
| 389 | AM_CONDITIONAL(FATAL_TEXTREL, [test "x$enable_textrelcheck" != "xno"]) |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 390 | AS_IF([test "x$enable_textrelcheck" != "xno"], |
| 391 | [enable_textrelcheck=yes],[enable_textrelcheck=no]) |
Mark Wielaard | 805ec83 | 2014-11-27 23:53:30 +0100 | [diff] [blame] | 392 | |
Max Filippov | bafacac | 2015-04-23 20:46:59 +0200 | [diff] [blame] | 393 | AC_ARG_ENABLE([symbol-versioning], |
| 394 | AS_HELP_STRING([--disable-symbol-versioning], |
| 395 | [Disable symbol versioning in shared objects])) |
Ulf Hermann | 4a3330a | 2017-08-18 15:50:42 +0200 | [diff] [blame] | 396 | |
| 397 | AC_CACHE_CHECK([whether symbol versioning is supported], ac_cv_symbol_versioning, [dnl |
| 398 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl |
| 399 | #define NEW_VERSION(name, version) \ |
| 400 | asm (".symver " #name "," #name "@@@" #version); |
| 401 | int foo(int x) { return x + 1; } |
| 402 | NEW_VERSION (foo, ELFUTILS_12.12) |
| 403 | ])], ac_cv_symbol_versioning=yes, ac_cv_symbol_versioning=no)]) |
| 404 | if test "$ac_cv_symbol_versioning" = "no"; then |
| 405 | if test "x$enable_symbol_versioning" != "xno"; then |
| 406 | AC_MSG_ERROR([Symbol versioning is not supported. |
| 407 | Use --disable-symbol-versioning to build without.]) |
| 408 | fi |
| 409 | fi |
| 410 | |
Max Filippov | bafacac | 2015-04-23 20:46:59 +0200 | [diff] [blame] | 411 | AM_CONDITIONAL(SYMBOL_VERSIONING, [test "x$enable_symbol_versioning" != "xno"]) |
| 412 | AS_IF([test "x$enable_symbol_versioning" = "xno"], |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 413 | [AC_MSG_WARN([Disabling symbol versioning breaks ABI compatibility.]) |
| 414 | enable_symbol_versioning=no],[enable_symbol_versioning=yes]) |
Max Filippov | bafacac | 2015-04-23 20:46:59 +0200 | [diff] [blame] | 415 | |
Mark Wielaard | 4b7953d | 2015-06-09 00:28:13 +0200 | [diff] [blame] | 416 | AC_CACHE_CHECK([whether gcc accepts -Wstack-usage], ac_cv_stack_usage, [dnl |
| 417 | old_CFLAGS="$CFLAGS" |
Filipe Brandenburger | 239cd48 | 2016-05-02 13:26:13 -0700 | [diff] [blame] | 418 | CFLAGS="$CFLAGS -Wstack-usage=262144 -Werror" |
Mark Wielaard | 4b7953d | 2015-06-09 00:28:13 +0200 | [diff] [blame] | 419 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], |
| 420 | ac_cv_stack_usage=yes, ac_cv_stack_usage=no) |
| 421 | CFLAGS="$old_CFLAGS"]) |
| 422 | AM_CONDITIONAL(ADD_STACK_USAGE_WARNING, [test "x$ac_cv_stack_usage" != "xno"]) |
| 423 | |
Mark Wielaard | 8bc1423 | 2016-02-09 16:10:22 +0100 | [diff] [blame] | 424 | # -Wlogical-op was too fragile in the past, make sure we get a sane one. |
| 425 | AC_CACHE_CHECK([whether gcc has a sane -Wlogical-op], ac_cv_logical_op, [dnl |
| 426 | old_CFLAGS="$CFLAGS" |
| 427 | CFLAGS="$CFLAGS -Wlogical-op -Werror" |
| 428 | AC_COMPILE_IFELSE([AC_LANG_SOURCE( |
| 429 | [#define FLAG 1 |
| 430 | int f (int r, int f) { return (r && (FLAG || (FLAG & f))); }])], |
| 431 | ac_cv_logical_op=yes, ac_cv_logical_op=no) |
| 432 | CFLAGS="$old_CFLAGS"]) |
| 433 | AM_CONDITIONAL(SANE_LOGICAL_OP_WARNING, |
| 434 | [test "x$ac_cv_logical_op" != "xno"]) |
| 435 | |
| 436 | # -Wduplicated-cond was added by GCC6 |
| 437 | AC_CACHE_CHECK([whether gcc accepts -Wduplicated-cond], ac_cv_duplicated_cond, [dnl |
| 438 | old_CFLAGS="$CFLAGS" |
Filipe Brandenburger | 239cd48 | 2016-05-02 13:26:13 -0700 | [diff] [blame] | 439 | CFLAGS="$CFLAGS -Wduplicated-cond -Werror" |
Mark Wielaard | 8bc1423 | 2016-02-09 16:10:22 +0100 | [diff] [blame] | 440 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], |
| 441 | ac_cv_duplicated_cond=yes, ac_cv_duplicated_cond=no) |
| 442 | CFLAGS="$old_CFLAGS"]) |
| 443 | AM_CONDITIONAL(HAVE_DUPLICATED_COND_WARNING, |
| 444 | [test "x$ac_cv_duplicated_cond" != "xno"]) |
| 445 | |
Mark Wielaard | 6993d40 | 2016-02-13 19:10:00 +0100 | [diff] [blame] | 446 | # -Wnull-dereference was added by GCC6 |
| 447 | AC_CACHE_CHECK([whether gcc accepts -Wnull-dereference], ac_cv_null_dereference, [dnl |
| 448 | old_CFLAGS="$CFLAGS" |
Filipe Brandenburger | 239cd48 | 2016-05-02 13:26:13 -0700 | [diff] [blame] | 449 | CFLAGS="$CFLAGS -Wnull-dereference -Werror" |
Mark Wielaard | 6993d40 | 2016-02-13 19:10:00 +0100 | [diff] [blame] | 450 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], |
| 451 | ac_cv_null_dereference=yes, ac_cv_null_dereference=no) |
| 452 | CFLAGS="$old_CFLAGS"]) |
| 453 | AM_CONDITIONAL(HAVE_NULL_DEREFERENCE_WARNING, |
| 454 | [test "x$ac_cv_null_dereference" != "xno"]) |
| 455 | |
Mark Wielaard | a3cc818 | 2016-11-02 13:29:26 +0100 | [diff] [blame] | 456 | # -Wimplicit-fallthrough was added by GCC7 |
| 457 | AC_CACHE_CHECK([whether gcc accepts -Wimplicit-fallthrough], ac_cv_implicit_fallthrough, [dnl |
| 458 | old_CFLAGS="$CFLAGS" |
| 459 | CFLAGS="$CFLAGS -Wimplicit-fallthrough -Werror" |
| 460 | AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], |
| 461 | ac_cv_implicit_fallthrough=yes, ac_cv_implicit_fallthrough=no) |
| 462 | CFLAGS="$old_CFLAGS"]) |
| 463 | AM_CONDITIONAL(HAVE_IMPLICIT_FALLTHROUGH_WARNING, |
| 464 | [test "x$ac_cv_implicit_fallthrough" != "xno"]) |
| 465 | |
Joshua Watt | 555e15e | 2018-02-09 10:27:18 -0600 | [diff] [blame] | 466 | # Assume the fallthrough attribute is supported if -Wimplict-fallthrough is supported |
| 467 | if test "$ac_cv_implicit_fallthrough" = "yes"; then |
| 468 | AC_DEFINE([HAVE_FALLTHROUGH], [1], |
| 469 | [Defined if __attribute__((fallthrough)) is supported]) |
| 470 | fi |
| 471 | |
Anthony G. Basile | 1ab3c2b | 2015-05-04 02:25:39 +0300 | [diff] [blame] | 472 | dnl Check if we have argp available from our libc |
| 473 | AC_LINK_IFELSE( |
| 474 | [AC_LANG_PROGRAM( |
| 475 | [#include <argp.h>], |
Filipe Brandenburger | afeccd4 | 2016-05-02 12:18:47 -0700 | [diff] [blame] | 476 | [int argc=1; char *argv[]={"test"}; argp_parse(0,argc,&argv,0,0,0); return 0;] |
Anthony G. Basile | 1ab3c2b | 2015-05-04 02:25:39 +0300 | [diff] [blame] | 477 | )], |
| 478 | [libc_has_argp="true"], |
| 479 | [libc_has_argp="false"] |
| 480 | ) |
| 481 | |
| 482 | dnl If our libc doesn't provide argp, then test for libargp |
| 483 | if test "$libc_has_argp" = "false" ; then |
| 484 | AC_MSG_WARN("libc does not have argp") |
| 485 | AC_CHECK_LIB([argp], [argp_parse], [have_argp="true"], [have_argp="false"]) |
| 486 | |
| 487 | if test "$have_argp" = "false"; then |
| 488 | AC_MSG_ERROR("no libargp found") |
| 489 | else |
| 490 | argp_LDADD="-largp" |
| 491 | fi |
| 492 | else |
| 493 | argp_LDADD="" |
| 494 | fi |
| 495 | AC_SUBST([argp_LDADD]) |
| 496 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 497 | dnl The directories with content. |
| 498 | |
| 499 | dnl Documentation. |
| 500 | dnl Commented out for now. |
| 501 | dnl AC_CONFIG_FILES([doc/Makefile]) |
| 502 | |
| 503 | dnl Support library. |
| 504 | AC_CONFIG_FILES([lib/Makefile]) |
| 505 | |
| 506 | dnl ELF library. |
Ulrich Drepper | 2c9ee4f | 2007-06-06 02:49:30 +0000 | [diff] [blame] | 507 | AC_CONFIG_FILES([libelf/Makefile]) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 508 | |
| 509 | dnl Higher-level ELF support library. |
| 510 | AC_CONFIG_FILES([libebl/Makefile]) |
| 511 | |
Mark Wielaard | 9380297 | 2014-04-11 23:52:47 +0200 | [diff] [blame] | 512 | dnl DWARF-ELF Lower-level Functions support library. |
| 513 | AC_CONFIG_FILES([libdwelf/Makefile]) |
| 514 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 515 | dnl DWARF library. |
| 516 | AC_CONFIG_FILES([libdw/Makefile]) |
| 517 | |
| 518 | dnl Higher-level DWARF support library. |
| 519 | AC_CONFIG_FILES([libdwfl/Makefile]) |
| 520 | |
| 521 | dnl CPU handling library. |
| 522 | AC_CONFIG_FILES([libcpu/Makefile]) |
| 523 | |
| 524 | dnl Assembler library. |
Roland McGrath | d7f8d0c | 2005-11-17 02:32:03 +0000 | [diff] [blame] | 525 | AM_CONDITIONAL(HAVE_LIBASM, true)dnl Used in tests/Makefile.am, which see. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 526 | AC_CONFIG_FILES([libasm/Makefile]) |
| 527 | |
Roland McGrath | e47ab76 | 2005-11-17 03:16:00 +0000 | [diff] [blame] | 528 | dnl CPU-specific backend libraries. |
| 529 | AC_CONFIG_FILES([backends/Makefile]) |
| 530 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 531 | dnl Tools. |
| 532 | AC_CONFIG_FILES([src/Makefile po/Makefile.in]) |
| 533 | |
| 534 | dnl Test suite. |
Roland McGrath | d7f8d0c | 2005-11-17 02:32:03 +0000 | [diff] [blame] | 535 | AM_CONDITIONAL(STANDALONE, false)dnl Used in tests/Makefile.am, which see. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 536 | AC_CONFIG_FILES([tests/Makefile]) |
| 537 | |
Mark Wielaard | 0aa60ac | 2016-01-04 21:41:52 +0100 | [diff] [blame] | 538 | dnl pkgconfig files |
| 539 | AC_CONFIG_FILES([config/libelf.pc config/libdw.pc]) |
| 540 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 541 | # Get the definitions necessary to create the Makefiles in the po |
| 542 | # subdirectories. This is a small subset of the gettext rules. |
| 543 | AC_SUBST(USE_NLS, yes) |
| 544 | AM_PO_SUBDIRS |
| 545 | |
Roland McGrath | b4d6f0f | 2008-08-25 22:55:17 +0000 | [diff] [blame] | 546 | dnl Appended to the config.h file. |
| 547 | dnl We hide all kinds of configuration magic in lib/eu-config.h. |
| 548 | AH_BOTTOM([#include <eu-config.h>]) |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 549 | |
Roland McGrath | fbc7245 | 2008-12-16 17:03:03 -0800 | [diff] [blame] | 550 | dnl Version compatibility header. |
| 551 | AC_CONFIG_FILES([version.h:config/version.h.in]) |
| 552 | AC_SUBST([eu_version]) |
Roland McGrath | ee9d60d | 2009-04-17 13:18:35 -0700 | [diff] [blame] | 553 | |
| 554 | # 1.234<whatever> -> 1234<whatever> |
| 555 | case "$PACKAGE_VERSION" in |
Roland McGrath | e9bf1d3 | 2011-10-08 15:14:30 -0700 | [diff] [blame] | 556 | [[0-9]].*) eu_version=`echo "$PACKAGE_VERSION" | sed 's@\.@@'` ;; |
Roland McGrath | ee9d60d | 2009-04-17 13:18:35 -0700 | [diff] [blame] | 557 | *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;; |
| 558 | esac |
| 559 | case "$eu_version" in |
| 560 | *.*) |
| 561 | # 1234.567 -> "1234", "567" |
| 562 | eu_extra_version="${eu_version#*.}" |
| 563 | eu_version="${eu_version%%.*}" |
| 564 | case "$eu_extra_version" in |
| 565 | [[0-9]][[0-9]][[0-9]]) ;; |
| 566 | [[0-9]][[0-9]]) eu_extra_version="${eu_extra_version}0" ;; |
| 567 | [[0-9]]) eu_extra_version="${eu_extra_version}00" ;; |
| 568 | *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;; |
| 569 | esac |
| 570 | ;; |
| 571 | *) |
| 572 | eu_extra_version=000 |
| 573 | ;; |
| 574 | esac |
| 575 | |
| 576 | case "$eu_version" in |
| 577 | 0[[0-9]][[0-9]][[0-9]]) eu_version="${eu_version#0}$eu_extra_version" ;; |
| 578 | [[0-9]][[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}$eu_extra_version" ;; |
| 579 | [[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}0$eu_extra_version" ;; |
Ulrich Drepper | 2c71252 | 2010-06-28 12:10:53 -0700 | [diff] [blame] | 580 | [[0-9]][[0-9]]) eu_version="${eu_version}00$eu_extra_version";; |
Roland McGrath | ee9d60d | 2009-04-17 13:18:35 -0700 | [diff] [blame] | 581 | *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;; |
Roland McGrath | fbc7245 | 2008-12-16 17:03:03 -0800 | [diff] [blame] | 582 | esac |
| 583 | |
Roland McGrath | 105e398 | 2009-04-19 16:07:45 -0700 | [diff] [blame] | 584 | # Round up to the next release API (x.y) version. |
Roland McGrath | e9bf1d3 | 2011-10-08 15:14:30 -0700 | [diff] [blame] | 585 | eu_version=$(( (eu_version + 999) / 1000 )) |
Roland McGrath | 105e398 | 2009-04-19 16:07:45 -0700 | [diff] [blame] | 586 | |
Mark Wielaard | f17a9bb | 2015-05-31 23:03:30 +0200 | [diff] [blame] | 587 | dnl Unique ID for this build. |
| 588 | MODVERSION="Build for ${LIBEBL_SUBDIR} ${eu_version} ${ac_cv_build}" |
| 589 | AC_SUBST([MODVERSION]) |
| 590 | AC_DEFINE_UNQUOTED(MODVERSION, "$MODVERSION") |
| 591 | AH_TEMPLATE([MODVERSION], [Identifier for modules in the build.]) |
| 592 | |
Jan Kratochvil | 0b86746 | 2013-05-30 14:37:38 +0200 | [diff] [blame] | 593 | AC_CHECK_SIZEOF(long) |
| 594 | |
Kyle McMartin | c1e0fcb | 2014-06-09 21:06:26 +0200 | [diff] [blame] | 595 | # On aarch64 before glibc 2.20 we would get the kernel user_pt_regs instead |
| 596 | # of the user_regs_struct from sys/user.h. They are structurally the same |
| 597 | # but we get either one or the other. |
| 598 | AC_CHECK_TYPE([struct user_regs_struct], |
| 599 | [sys_user_has_user_regs=yes], [sys_user_has_user_regs=no], |
| 600 | [[#include <sys/ptrace.h>] |
| 601 | [#include <sys/time.h>] |
| 602 | [#include <sys/user.h>]]) |
| 603 | if test "$sys_user_has_user_regs" = "yes"; then |
| 604 | AC_DEFINE(HAVE_SYS_USER_REGS, 1, |
| 605 | [Define to 1 if <sys/user.h> defines struct user_regs_struct]) |
| 606 | fi |
| 607 | |
Jan Kratochvil | 0b86746 | 2013-05-30 14:37:38 +0200 | [diff] [blame] | 608 | # On a 64-bit host where can can use $CC -m32, we'll run two sets of tests. |
| 609 | # Likewise in a 32-bit build on a host where $CC -m64 works. |
| 610 | utrace_BIARCH |
| 611 | # `$utrace_biarch' will be `-m64' even on an uniarch i386 machine. |
Jan Kratochvil | 8ae9bc9 | 2013-12-02 20:54:28 +0100 | [diff] [blame] | 612 | CC_BIARCH="$CC $utrace_biarch" |
Jan Kratochvil | 0b86746 | 2013-05-30 14:37:38 +0200 | [diff] [blame] | 613 | AC_SUBST([CC_BIARCH]) |
| 614 | |
Mark Wielaard | 4664fd5 | 2015-05-30 22:50:37 +0200 | [diff] [blame] | 615 | # In maintainer mode we really need flex and bison. |
| 616 | # Otherwise we really need a release dir with maintainer files generated. |
| 617 | if test "x$enable_maintainer_mode" = xyes; then |
| 618 | AC_CHECK_PROG(HAVE_FLEX, flex, yes, no) |
| 619 | if test "$HAVE_FLEX" = "no"; then |
| 620 | AC_MSG_ERROR([flex needed in maintainer mode]) |
| 621 | fi |
| 622 | AC_CHECK_PROG(HAVE_BISON, bison, yes, no) |
| 623 | if test "$HAVE_BISON" = "no"; then |
| 624 | AC_MSG_ERROR([bison needed in maintainer mode]) |
| 625 | fi |
Ross Burton | d612684 | 2018-07-04 12:11:07 +0100 | [diff] [blame] | 626 | AC_CHECK_PROG(HAVE_GAWK, gawk, yes, no) |
| 627 | if test "$HAVE_GAWK" = "no"; then |
| 628 | AC_MSG_ERROR([gawk needed in maintainer mode]) |
| 629 | fi |
Mark Wielaard | 4664fd5 | 2015-05-30 22:50:37 +0200 | [diff] [blame] | 630 | else |
| 631 | if test ! -f ${srcdir}/libdw/known-dwarf.h; then |
| 632 | AC_MSG_ERROR([No libdw/known-dwarf.h. configure --enable-maintainer-mode]) |
| 633 | fi |
| 634 | fi |
| 635 | |
| 636 | # The testfiles are all compressed, we need bunzip2 when running make check |
| 637 | AC_CHECK_PROG(HAVE_BUNZIP2, bunzip2, yes, no) |
| 638 | if test "$HAVE_BUNZIP2" = "no"; then |
| 639 | AC_MSG_WARN([No bunzip2, needed to run make check]) |
| 640 | fi |
| 641 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 642 | AC_OUTPUT |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 643 | |
| 644 | AC_MSG_NOTICE([ |
| 645 | ===================================================================== |
| 646 | elfutils: ${PACKAGE_VERSION} (eu_version: ${eu_version}) |
| 647 | ===================================================================== |
| 648 | |
| 649 | Prefix : ${prefix} |
| 650 | Program prefix ("eu-" recommended) : ${program_prefix} |
| 651 | Source code location : ${srcdir} |
| 652 | Maintainer mode : ${enable_maintainer_mode} |
| 653 | libebl modules subdirectory : ${LIBEBL_SUBDIR} |
| 654 | build arch : ${ac_cv_build} |
| 655 | |
| 656 | RECOMMENDED FEATURES (should all be yes) |
| 657 | gzip support : ${with_zlib} |
| 658 | bzip2 support : ${with_bzlib} |
| 659 | lzma/xz support : ${with_lzma} |
Mark Wielaard | e6e80da | 2015-05-01 10:31:36 +0200 | [diff] [blame] | 660 | libstdc++ demangle support : ${enable_demangler} |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 661 | File textrel check : ${enable_textrelcheck} |
| 662 | Symbol versioning : ${enable_symbol_versioning} |
| 663 | |
| 664 | NOT RECOMMENDED FEATURES (should all be no) |
| 665 | Experimental thread safety : ${use_locks} |
Mark Wielaard | b63007e | 2019-01-18 14:18:22 +0100 | [diff] [blame] | 666 | install elf.h : ${install_elfh} |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 667 | |
| 668 | OTHER FEATURES |
| 669 | Deterministic archives by default : ${default_ar_deterministic} |
| 670 | Native language support : ${USE_NLS} |
| 671 | |
| 672 | EXTRA TEST FEATURES (used with make check) |
Mark Wielaard | 4664fd5 | 2015-05-30 22:50:37 +0200 | [diff] [blame] | 673 | have bunzip2 installed (required) : ${HAVE_BUNZIP2} |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 674 | debug branch prediction : ${use_debugpred} |
| 675 | gprof support : ${use_gprof} |
| 676 | gcov support : ${use_gcov} |
| 677 | run all tests under valgrind : ${use_valgrind} |
Mark Wielaard | 2b250b7 | 2015-05-21 23:36:51 +0200 | [diff] [blame] | 678 | gcc undefined behaviour sanitizer : ${use_undefined} |
Mark Wielaard | 7702a3c | 2015-05-01 09:23:57 +0200 | [diff] [blame] | 679 | use rpath in tests : ${tests_use_rpath} |
| 680 | test biarch : ${utrace_cv_cc_biarch} |
| 681 | ]) |
Mark Wielaard | b63007e | 2019-01-18 14:18:22 +0100 | [diff] [blame] | 682 | |
| 683 | if test "$install_elfh" = yes; then |
| 684 | if test "${prefix}" = "/usr/local" -o "${prefix}" = "/usr"; then |
| 685 | AC_MSG_WARN([installing elf.h in ${includedir} might conflict with glibc/system elf.h]) |
| 686 | fi |
| 687 | fi |