dnl Process this file with autoconf to produce a configure script. dnl Configure input file for elfutils. -*-autoconf-*- dnl dnl Copyright (C) 1996-2019 Red Hat, Inc. dnl Copyright (C) 2022, 2023 Mark J. Wielaard dnl dnl This file is part of elfutils. dnl dnl This file is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 3 of the License, or dnl (at your option) any later version. dnl dnl elfutils is distributed in the hope that it will be useful, but dnl WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program. If not, see . AC_INIT([elfutils],[0.191],[https://sourceware.org/bugzilla],[elfutils],[http://elfutils.org/]) dnl Workaround for older autoconf < 2.64 m4_ifndef([AC_PACKAGE_URL], [AC_DEFINE([PACKAGE_URL], ["http://elfutils.org/"], [Define to home page for this package]) AC_SUBST([PACKAGE_URL], ["http://elfutils.org/"])]) LIBDEBUGINFOD_SONAME=libdebuginfod.so.1 AC_SUBST([LIBDEBUGINFOD_SONAME]) # We want eu- as default program prefix if none was given by the user. # But if the user explicitly provided --program-prefix="" then pretend # it wasn't set at all (NONE). We want to test this really early before # configure has a chance to use the value. if test "x$program_prefix" = "xNONE"; then AC_MSG_NOTICE([No --program-prefix given, using "eu-"]) program_prefix="eu-" elif test "x$program_prefix" = "x"; then AC_MSG_NOTICE([Using no program-prefix]) program_prefix=NONE fi AC_CONFIG_AUX_DIR([config]) AC_CONFIG_FILES([config/Makefile]) AC_CONFIG_FILES([libgnu/Makefile]) AC_COPYRIGHT([Copyright (C) 1996-2024 The elfutils developers.]) AC_PREREQ(2.63) dnl Minimum Autoconf version required. dnl We use GNU make extensions; automake 1.10 defaults to -Wportability. AM_INIT_AUTOMAKE([gnits 1.11 -Wno-portability dist-bzip2 no-dist-gzip parallel-tests]) AM_MAINTAINER_MODE AM_SILENT_RULES([yes]) AC_CONFIG_SRCDIR([libelf/libelf.h]) AC_CONFIG_FILES([Makefile]) AC_CONFIG_HEADERS([config.h]) dnl The RPM spec file. We substitute a few values in the file. AC_CONFIG_FILES([elfutils.spec:config/elfutils.spec.in]) dnl debuginfo-server client & server parts. AC_CONFIG_FILES([debuginfod/Makefile debuginfod/debuginfod.h]) AC_CANONICAL_HOST AC_ARG_ENABLE(deterministic-archives, [AS_HELP_STRING([--enable-deterministic-archives], [ar and ranlib default to -D behavior])], [ if test "${enableval}" = no; then default_ar_deterministic=false else default_ar_deterministic=true fi], [default_ar_deterministic=false]) AC_DEFINE_UNQUOTED(DEFAULT_AR_DETERMINISTIC, $default_ar_deterministic, [Should ar and ranlib use -D behavior by default?]) AC_ARG_ENABLE([thread-safety], AS_HELP_STRING([--enable-thread-safety], [enable thread safety of libraries EXPERIMENTAL]), use_locks=$enableval, use_locks=no) AM_CONDITIONAL(USE_LOCKS, test "$use_locks" = yes) AS_IF([test "$use_locks" = yes], [AC_DEFINE(USE_LOCKS)]) AS_IF([test "$use_locks" = yes], [AC_MSG_WARN([thread-safety is EXPERIMENTAL tests might fail.])]) AH_TEMPLATE([USE_LOCKS], [Defined if libraries should be thread-safe.]) AC_USE_SYSTEM_EXTENSIONS() m4_version_prereq([2.70], [AC_PROG_CC], [AC_PROG_CC_C99]) AC_PROG_CXX AC_PROG_RANLIB AC_PROG_YACC AC_PROG_LEX([noyywrap]) gl_EARLY # Only available since automake 1.12 m4_ifdef([AM_PROG_AR], [AM_PROG_AR]) AC_CHECK_TOOL([READELF], [readelf]) AC_CHECK_TOOL([NM], [nm]) LT_INIT([shared disable-static]) AC_CACHE_CHECK([whether gcc supports __attribute__((visibility()))], ac_cv_visibility, [dnl save_CFLAGS="$CFLAGS" CFLAGS="$save_CFLAGS -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl int __attribute__((visibility("hidden"))) foo (int a) { return a; }])], ac_cv_visibility=yes, ac_cv_visibility=no) CFLAGS="$save_CFLAGS"]) if test "$ac_cv_visibility" = "yes"; then AC_DEFINE([HAVE_VISIBILITY], [1], [Defined if __attribute__((visibility())) is supported]) fi AC_CACHE_CHECK([whether gcc supports __attribute__((gcc_struct))], ac_cv_gcc_struct, [dnl save_CFLAGS="$CFLAGS" CFLAGS="$save_CFLAGS -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl struct test { int x; } __attribute__((gcc_struct)); ])], ac_cv_gcc_struct=yes, ac_cv_gcc_struct=no) CFLAGS="$save_CFLAGS"]) if test "$ac_cv_gcc_struct" = "yes"; then AC_DEFINE([HAVE_GCC_STRUCT], [1], [Defined if __attribute__((gcc_struct)) is supported]) fi AC_CACHE_CHECK([whether gcc supports -fPIC], ac_cv_fpic, [dnl save_CFLAGS="$CFLAGS" CFLAGS="$save_CFLAGS -fPIC -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE()], ac_cv_fpic=yes, ac_cv_fpic=no) CFLAGS="$save_CFLAGS" ]) if test "$ac_cv_fpic" = "yes"; then fpic_CFLAGS="-fPIC" else fpic_CFLAGS="" fi AC_SUBST([fpic_CFLAGS]) AC_CACHE_CHECK([whether gcc supports -fPIE], ac_cv_fpie, [dnl save_CFLAGS="$CFLAGS" CFLAGS="$save_CFLAGS -fPIE -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE()], ac_cv_fpie=yes, ac_cv_fpie=no) CFLAGS="$save_CFLAGS" ]) if test "$ac_cv_fpie" = "yes"; then fpie_CFLAGS="-fPIE" else fpie_CFLAGS="" fi AC_SUBST([fpie_CFLAGS]) dso_LDFLAGS="-shared" NO_UNDEFINED=-Wl,--no-undefined AC_ARG_ENABLE([sanitize-memory], AS_HELP_STRING([--enable-sanitize-memory], [Use clang memory sanitizer]), [use_msan=$enableval], [use_msan=no]) if test "$use_msan" = yes; then old_CFLAGS="$CFLAGS" old_CXXFLAGS="$CXXFLAGS" old_LDFLAGS="$LDFLAGS" # -fsanitize=memory is not compatible with -D_FORTIFY_SOURCE, -Wl,-z,defs and --no-undefined CFLAGS="$CFLAGS -fsanitize=memory -fsanitize-memory-track-origins -D_FORTIFY_SOURCE=0" CXXFLAGS="$CXXFLAGS -fsanitize=memory -fsanitize-memory-track-origins -D_FORTIFY_SOURCE=0" LDFLAGS="-shared" AC_LINK_IFELSE([AC_LANG_SOURCE([int main (int argc, char **argv) { return 0; }])], use_msan=yes, use_msan=no) AS_IF([test "x$use_msan" = xyes], ac_cv_zdefs=no NO_UNDEFINED=, AC_MSG_WARN([clang memory sanitizer not available]) CFLAGS="$old_CFLAGS" CXXFLAGS="$old_CXXFLAGS") LDFLAGS="$old_LDFLAGS" fi AC_SUBST(NO_UNDEFINED) AM_CONDITIONAL(USE_MEMORY_SANITIZER, test "$use_msan" = yes) ZDEFS_LDFLAGS="-Wl,-z,defs" AC_CACHE_CHECK([whether gcc supports $ZDEFS_LDFLAGS], ac_cv_zdefs, [dnl save_LDFLAGS="$LDFLAGS" LDFLAGS="$ZDEFS_LDFLAGS $save_LDFLAGS" AC_LINK_IFELSE([AC_LANG_PROGRAM()], ac_cv_zdefs=yes, ac_cv_zdefs=no) LDFLAGS="$save_LDFLAGS" ]) if test "$ac_cv_zdefs" = "yes"; then dso_LDFLAGS="$dso_LDFLAGS $ZDEFS_LDFLAGS" fi # We really want build-ids. 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Add define to CFLAGS (not AC_DEFINE it) since we need to dnl check it before including config.h (which might define _FILE_OFFSET_BITS). AC_CACHE_CHECK([whether fts.h is bad when included (with LFS)], ac_cv_bad_fts, [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include ]])], ac_cv_bad_fts=no, ac_cv_bad_fts=yes)]) AS_IF([test "x$ac_cv_bad_fts" = "xyes"], [CFLAGS="$CFLAGS -DBAD_FTS=1" CXXFLAGS="$CXXFLAGS -DBAD_FTS=1"]) # See if we can add -D_FORTIFY_SOURCE=2 or =3. Don't do it if it is already # (differently) defined or if it generates warnings/errors because we # don't use the right optimisation level (string.h will warn about that). AC_MSG_CHECKING([whether to add -D_FORTIFY_SOURCE=2 or =3 to CFLAGS]) case "$CFLAGS" in *-D_FORTIFY_SOURCE=*) AC_MSG_RESULT([no, already there]) ;; *) save_CFLAGS="$CFLAGS" # Try 3 first. 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AC_ARG_ENABLE([debugpred], AS_HELP_STRING([--enable-debugpred],[build binaries with support to debug branch prediction]), [use_debugpred=$enableval], [use_debugpred=no]) case $use_debugpred in yes) use_debugpred_val=1 ;; *) use_debugpred_val=0 ;; esac AC_SUBST([DEBUGPRED], $use_debugpred_val) dnl Enable gprof support. AC_ARG_ENABLE([gprof], AS_HELP_STRING([--enable-gprof],[build binaries with gprof support]), [use_gprof=$enableval], [use_gprof=no]) if test "$use_gprof" = yes; then CFLAGS="$CFLAGS -pg" LDFLAGS="$LDFLAGS -pg" fi AM_CONDITIONAL(GPROF, test "$use_gprof" = yes) # Enable gcov support. AC_ARG_ENABLE([gcov], AS_HELP_STRING([--enable-gcov],[build binaries with gcov support]), [use_gcov=$enableval], [use_gcov=no]) if test "$use_gcov" = yes; then CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage" CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage" LDFLAGS="$LDFLAGS -fprofile-arcs" AC_CHECK_PROG([GCOV], [gcov], [gcov]) AC_CHECK_PROG([LCOV], [lcov], [lcov]) AC_CHECK_PROG([GENHTML], [genhtml], [genhtml]) fi AM_CONDITIONAL(GCOV, test "$use_gcov" = yes) AC_ARG_ENABLE([sanitize-undefined], AS_HELP_STRING([--enable-sanitize-undefined], [Use gcc undefined behaviour sanitizer]), [use_undefined=$enableval], [use_undefined=no]) if test "$use_undefined" = yes; then old_CFLAGS="$CFLAGS" old_CXXFLAGS="$CXXFLAGS" # We explicitly use unaligned access when possible (see ALLOW_UNALIGNED) # We want to fail immediately on first error, don't try to recover. 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CFLAGS="$CFLAGS -fsanitize=address -fno-sanitize-recover" CXXFLAGS="$CXXFLAGS -fsanitize=address -fno-sanitize-recover" # Some compilers don't handle -fsanatize=address correctly with --no-undefined LDFLAGS="-Wl,-z,defs -shared" AC_LINK_IFELSE([AC_LANG_SOURCE([int main (int argc, char **argv) { return 0; }])], use_address=yes, use_address=no) AS_IF([test "x$use_address" != xyes], AC_MSG_WARN([gcc address sanitizer not available]) CFLAGS="$old_CFLAGS" CXXFLAGS="$old_CXXFLAGS") LDFLAGS="$old_LDFLAGS" fi AM_CONDITIONAL(USE_ADDRESS_SANITIZER, test "$use_address" = yes) AC_ARG_ENABLE([valgrind], AS_HELP_STRING([--enable-valgrind],[run all tests under valgrind]), [use_valgrind=$enableval], [use_valgrind=no]) if test "$use_valgrind" = yes; then if test "$use_address" = yes; then AC_MSG_ERROR([cannot enable valgrind and sanitize address together]) fi AC_CHECK_PROG(HAVE_VALGRIND, valgrind, yes, no) if test "$HAVE_VALGRIND" = "no"; then AC_MSG_ERROR([valgrind not found]) fi fi AM_CONDITIONAL(USE_VALGRIND, test "$use_valgrind" = yes) AC_ARG_WITH([valgrind], AS_HELP_STRING([--with-valgrind],[include directory for Valgrind headers]), [with_valgrind_headers=$withval], [with_valgrind_headers=no]) if test "x$with_valgrind_headers" != xno; then save_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -I$with_valgrind_headers" AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #include int main() { return 0; } ]])], [ HAVE_VALGRIND_HEADERS="yes" CFLAGS="$save_CFLAGS -I$with_valgrind_headers" ], [ AC_MSG_ERROR([invalid valgrind include directory: $with_valgrind_headers]) ]) fi AC_ARG_ENABLE([valgrind-annotations], AS_HELP_STRING([--enable-valgrind-annotations],[insert extra annotations for better valgrind support]), [use_vg_annotations=$enableval], [use_vg_annotations=no]) if test "$use_vg_annotations" = yes; then if test "x$HAVE_VALGRIND_HEADERS" != "xyes"; then AC_MSG_CHECKING([whether Valgrind headers are available]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ #include int main() { return 0; } ]])], [ AC_MSG_RESULT([yes]) ], [ AC_MSG_ERROR([valgrind annotations requested but no headers are available]) ]) fi fi AM_CONDITIONAL(USE_VG_ANNOTATIONS, test "$use_vg_annotations" = yes) AC_ARG_ENABLE([install-elfh], AS_HELP_STRING([--enable-install-elfh],[install elf.h in include dir]), [install_elfh=$enableval], [install_elfh=no]) AM_CONDITIONAL(INSTALL_ELFH, test "$install_elfh" = yes) AM_CONDITIONAL(BUILD_STATIC, [dnl test "$use_gprof" = yes -o "$use_gcov" = yes -o "$enable_static" = yes]) AM_CONDITIONAL(BUILD_SHARED, [dnl test "$enable_shared" = yes]) AC_ARG_ENABLE([tests-rpath], AS_HELP_STRING([--enable-tests-rpath],[build $ORIGIN-using rpath into tests]), [tests_use_rpath=$enableval], [tests_use_rpath=no]) AM_CONDITIONAL(TESTS_RPATH, test "$tests_use_rpath" = yes) dnl zlib is mandatory. save_LIBS="$LIBS" LIBS= eu_ZIPLIB(zlib,ZLIB,z,gzdirect,gzip) AS_IF([test "x$with_zlib" = xno], [AC_MSG_ERROR([zlib not found but is required])]) LIBS="$save_LIBS" dnl Test for bzlib and xz/lzma/zstd, gives BZLIB/LZMALIB/ZSTD .am dnl conditional and config.h USE_BZLIB/USE_LZMALIB/USE_ZSTD #define. save_LIBS="$LIBS" LIBS= eu_ZIPLIB(bzlib,BZLIB,bz2,BZ2_bzdopen,bzip2) # We need this since bzip2 doesn't have a pkgconfig file. BZ2_LIB="$LIBS" AC_SUBST([BZ2_LIB]) eu_ZIPLIB(lzma,LZMA,lzma,lzma_auto_decoder,[LZMA (xz)]) AS_IF([test "x$with_lzma" = xyes], [LIBLZMA="liblzma"], [LIBLZMA=""]) AC_SUBST([LIBLZMA]) eu_ZIPLIB(zstd,ZSTD,zstd,ZSTD_decompress,[ZSTD (zst)]) AS_IF([test "x$with_zstd" = xyes], [LIBZSTD="libzstd"], [LIBLZSTD=""]) AC_SUBST([LIBZSTD]) zstd_LIBS="$LIBS" AC_SUBST([zstd_LIBS]) zip_LIBS="$LIBS" LIBS="$save_LIBS" AC_SUBST([zip_LIBS]) dnl zstd compression support requires libzstd 1.4.0+ AS_IF([test "x$with_zstd" = xyes], [ PKG_PROG_PKG_CONFIG PKG_CHECK_MODULES([ZSTD_COMPRESS],[libzstd >= 1.4.0], [with_zstd_compress="yes"],[with_zstd_compress="no"])], [with_zstd_compress="no"]) AM_CONDITIONAL(USE_ZSTD_COMPRESS, test "x$with_zstd_compress" = "xyes") AS_IF([test "x$with_zstd_compress" = "xyes"], [AC_DEFINE([USE_ZSTD_COMPRESS], [1], [zstd compression support])]) AC_CHECK_DECLS([memrchr, rawmemchr],[],[], [#define _GNU_SOURCE #include ]) AC_CHECK_DECLS([powerof2],[],[],[#include ]) AC_CHECK_DECLS([mempcpy],[],[], [#define _GNU_SOURCE #include ]) AC_CHECK_DECLS([reallocarray],[],[], [#define _GNU_SOURCE #include ]) AC_CHECK_FUNCS([process_vm_readv mremap]) AS_IF([test "x$ac_cv_func_mremap" = "xno"], [AC_MSG_WARN([elf_update needs mremap to support ELF_C_RDWR_MMAP])]) AC_CHECK_HEADERS([error.h]) AC_CHECK_HEADERS([err.h]) dnl for debuginfod concurrency heuristics AC_CHECK_HEADERS([sched.h]) AC_CHECK_FUNCS([sched_getaffinity]) AC_CHECK_HEADERS([sys/resource.h]) AC_CHECK_FUNCS([getrlimit]) old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -D_GNU_SOURCE" AC_FUNC_STRERROR_R() CFLAGS="$old_CFLAGS" AC_ARG_ENABLE([demangler], AS_HELP_STRING([--disable-demangler], [Disable libstdc++ demangle support]), [], [enable_demangler=yes]) AS_IF([test "x$enable_demangler" = xyes], AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])]) AM_CONDITIONAL(DEMANGLE, test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes") AS_IF([test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes"], [enable_demangler=yes], [AC_MSG_ERROR([[__cxa_demangle not found in libstdc++, use --disable-demangler to disable demangler support.]])]), AM_CONDITIONAL(DEMANGLE, false)) AC_ARG_ENABLE([textrelcheck], AS_HELP_STRING([--disable-textrelcheck], [Disable textrelcheck being a fatal error])) AM_CONDITIONAL(FATAL_TEXTREL, [test "x$enable_textrelcheck" != "xno"]) AS_IF([test "x$enable_textrelcheck" != "xno"], [enable_textrelcheck=yes],[enable_textrelcheck=no]) AC_ARG_ENABLE([symbol-versioning], AS_HELP_STRING([--disable-symbol-versioning], [Disable symbol versioning in shared objects])) AC_CACHE_CHECK([whether symbol versioning is supported], ac_cv_symbol_versioning, [dnl AC_COMPILE_IFELSE([AC_LANG_SOURCE([dnl #define NEW_VERSION(name, version) \ asm (".symver " #name "," #name "@@@" #version); int foo(int x) { return x + 1; } NEW_VERSION (foo, ELFUTILS_12.12) ])], ac_cv_symbol_versioning=yes, ac_cv_symbol_versioning=no)]) if test "$ac_cv_symbol_versioning" = "no"; then if test "x$enable_symbol_versioning" != "xno"; then AC_MSG_ERROR([Symbol versioning is not supported. Use --disable-symbol-versioning to build without.]) fi fi AM_CONDITIONAL(SYMBOL_VERSIONING, [test "x$enable_symbol_versioning" != "xno"]) AS_IF([test "x$enable_symbol_versioning" = "xno"], [AC_MSG_WARN([Disabling symbol versioning breaks ABI compatibility.]) enable_symbol_versioning=no],[enable_symbol_versioning=yes]) AC_CACHE_CHECK([whether gcc accepts -Wstack-usage], ac_cv_stack_usage, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wstack-usage=262144 -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_stack_usage=yes, ac_cv_stack_usage=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(ADD_STACK_USAGE_WARNING, [test "x$ac_cv_stack_usage" != "xno"]) # -Wlogical-op was too fragile in the past, make sure we get a sane one. AC_CACHE_CHECK([whether gcc has a sane -Wlogical-op], ac_cv_logical_op, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wlogical-op -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE( [#define FLAG 1 int f (int r, int f) { return (r && (FLAG || (FLAG & f))); }])], ac_cv_logical_op=yes, ac_cv_logical_op=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(SANE_LOGICAL_OP_WARNING, [test "x$ac_cv_logical_op" != "xno"]) # -Wduplicated-cond was added by GCC6 AC_CACHE_CHECK([whether gcc accepts -Wduplicated-cond], ac_cv_duplicated_cond, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wduplicated-cond -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_duplicated_cond=yes, ac_cv_duplicated_cond=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(HAVE_DUPLICATED_COND_WARNING, [test "x$ac_cv_duplicated_cond" != "xno"]) # -Wnull-dereference was added by GCC6 AC_CACHE_CHECK([whether gcc accepts -Wnull-dereference], ac_cv_null_dereference, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wnull-dereference -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_null_dereference=yes, ac_cv_null_dereference=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(HAVE_NULL_DEREFERENCE_WARNING, [test "x$ac_cv_null_dereference" != "xno"]) # -Wimplicit-fallthrough was added by GCC7 AC_CACHE_CHECK([whether gcc accepts -Wimplicit-fallthrough], ac_cv_implicit_fallthrough, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wimplicit-fallthrough -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_implicit_fallthrough=yes, ac_cv_implicit_fallthrough=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(HAVE_IMPLICIT_FALLTHROUGH_WARNING, [test "x$ac_cv_implicit_fallthrough" != "xno"]) # Check whether the compiler additionally accepts -Wimplicit-fallthrough=5 # GCC accepts this and 5 means "don't parse any fallthrough comments and # only accept the fallthrough attribute" AC_CACHE_CHECK([whether the compiler accepts -Wimplicit-fallthrough=5], ac_cv_implicit_fallthrough_5, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wimplicit-fallthrough=5 -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_implicit_fallthrough_5=yes, ac_cv_implicit_fallthrough_5=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(HAVE_IMPLICIT_FALLTHROUGH_5_WARNING, [test "x$ac_cv_implicit_fallthrough_5" != "xno"]) # Assume the fallthrough attribute is supported if -Wimplict-fallthrough is supported if test "$ac_cv_implicit_fallthrough" = "yes"; then AC_DEFINE([HAVE_FALLTHROUGH], [1], [Defined if __attribute__((fallthrough)) is supported]) fi AC_CACHE_CHECK([whether the compiler accepts -Wtrampolines], ac_cv_trampolines, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wtrampolines -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_trampolines=yes, ac_cv_trampolines=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(HAVE_TRAMPOLINES_WARNING, [test "x$ac_cv_trampolines" != "xno"]) AC_CACHE_CHECK([whether the compiler accepts -Wno-packed-not-aligned], ac_cv_no_packed_not_aligned, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wno-packed-not-aligned -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_no_packed_not_aligned=yes, ac_cv_no_packed_not_aligned=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(HAVE_NO_PACKED_NOT_ALIGNED_WARNING, [test "x$ac_cv_no_packed_not_aligned" != "xno"]) AC_CACHE_CHECK([whether the compiler accepts -Wuse-after-free=3], ac_cv_use_after_free3, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wuse-after-free=3 -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_use_after_free3=yes, ac_cv_use_after_free3=no) CFLAGS="$old_CFLAGS"]) AM_CONDITIONAL(HAVE_USE_AFTER_FREE3_WARNING, [test "x$ac_cv_use_after_free3" != "xno"]) AC_CACHE_CHECK([whether the compiler accepts -fno-addrsig], ac_cv_fno_addrsig, [dnl old_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -fno-addrsig -Werror" AC_COMPILE_IFELSE([AC_LANG_SOURCE([])], ac_cv_fno_addrsig=yes, ac_cv_fno_addrsig=no) CFLAGS="$old_CFLAGS"]) AS_IF([test "x$ac_cv_fno_addrsig" = "xyes"], CFLAGS="$CFLAGS -fno-addrsig") gl_INIT saved_LIBS="$LIBS" AC_SEARCH_LIBS([argp_parse], [argp]) LIBS="$saved_LIBS" case "$ac_cv_search_argp_parse" in no) AC_MSG_FAILURE([failed to find argp_parse]) ;; -l*) argp_LDADD="$ac_cv_search_argp_parse" ;; *) argp_LDADD= ;; esac AC_SUBST([argp_LDADD]) saved_LIBS="$LIBS" AC_SEARCH_LIBS([fts_close], [fts]) LIBS="$saved_LIBS" case "$ac_cv_search_fts_close" in no) AC_MSG_FAILURE([failed to find fts_close]) ;; -l*) fts_LIBS="$ac_cv_search_fts_close" ;; *) fts_LIBS= ;; esac AC_SUBST([fts_LIBS]) saved_LIBS="$LIBS" AC_SEARCH_LIBS([_obstack_free], [obstack]) LIBS="$saved_LIBS" case "$ac_cv_search__obstack_free" in no) AC_MSG_FAILURE([failed to find _obstack_free]) ;; -l*) obstack_LIBS="$ac_cv_search__obstack_free" ;; *) obstack_LIBS= ;; esac AC_SUBST([obstack_LIBS]) dnl The directories with content. dnl Documentation. AC_CONFIG_FILES([doc/Makefile]) dnl Support library. AC_CONFIG_FILES([lib/Makefile]) dnl ELF library. AC_CONFIG_FILES([libelf/Makefile]) dnl Higher-level ELF support library. AC_CONFIG_FILES([libebl/Makefile]) dnl DWARF-ELF Lower-level Functions support library. AC_CONFIG_FILES([libdwelf/Makefile]) dnl DWARF library. AC_CONFIG_FILES([libdw/Makefile]) dnl Higher-level DWARF support library. AC_CONFIG_FILES([libdwfl/Makefile]) dnl CPU handling library. AC_CONFIG_FILES([libcpu/Makefile]) dnl Assembler library. AC_CONFIG_FILES([libasm/Makefile]) dnl CPU-specific backend libraries. AC_CONFIG_FILES([backends/Makefile]) dnl Tools. AC_CONFIG_FILES([src/Makefile po/Makefile.in]) dnl Test suite. AC_CONFIG_FILES([tests/Makefile]) dnl pkgconfig files AC_CONFIG_FILES([config/libelf.pc config/libdw.pc config/libdebuginfod.pc]) dnl As long as "git grep 'PRI[diouxX]' po" reports matches in dnl translatable strings, we must use need-formatstring-macros here. AM_GNU_GETTEXT([external], [need-formatstring-macros]) dnl AM_GNU_GETTEXT_VERSION is still needed for old versions dnl of autoreconf that do not recognize AM_GNU_GETTEXT_REQUIRE_VERSION. dnl 0.19.6 is the first version of gettext that provides dnl AM_GNU_GETTEXT_REQUIRE_VERSION support. AM_GNU_GETTEXT_VERSION([0.19.6]) AM_GNU_GETTEXT_REQUIRE_VERSION([0.19.6]) dnl Appended to the config.h file. dnl We hide all kinds of configuration magic in lib/eu-config.h. AH_BOTTOM([#include ]) dnl Version compatibility header. AC_CONFIG_FILES([version.h:config/version.h.in]) AC_SUBST([eu_version]) # 1.234 -> 1234 case "$PACKAGE_VERSION" in [[0-9]].*) eu_version=`echo "$PACKAGE_VERSION" | sed 's@\.@@'` ;; *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;; esac case "$eu_version" in *.*) # 1234.567 -> "1234", "567" eu_extra_version="${eu_version#*.}" eu_version="${eu_version%%.*}" case "$eu_extra_version" in [[0-9]][[0-9]][[0-9]]) ;; [[0-9]][[0-9]]) eu_extra_version="${eu_extra_version}0" ;; [[0-9]]) eu_extra_version="${eu_extra_version}00" ;; *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;; esac ;; *) eu_extra_version=000 ;; esac case "$eu_version" in 0[[0-9]][[0-9]][[0-9]]) eu_version="${eu_version#0}$eu_extra_version" ;; [[0-9]][[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}$eu_extra_version" ;; [[0-9]][[0-9]][[0-9]]) eu_version="${eu_version}0$eu_extra_version" ;; [[0-9]][[0-9]]) eu_version="${eu_version}00$eu_extra_version";; *) AC_MSG_ERROR([confused by version number '$PACKAGE_VERSION']) ;; esac # Round up to the next release API (x.y) version. eu_version=$(( (eu_version + 999) / 1000 )) AC_CHECK_SIZEOF(long) # On aarch64 before glibc 2.20 we would get the kernel user_pt_regs instead # of the user_regs_struct from sys/user.h. They are structurally the same # but we get either one or the other. AC_CHECK_TYPE([struct user_regs_struct], [sys_user_has_user_regs=yes], [sys_user_has_user_regs=no], [[#include ] [#include ] [#include ]]) if test "$sys_user_has_user_regs" = "yes"; then AC_DEFINE(HAVE_SYS_USER_REGS, 1, [Define to 1 if defines struct user_regs_struct]) fi # On a 64-bit host where can can use $CC -m32, we'll run two sets of tests. utrace_BIARCH CC_BIARCH="$CC $utrace_biarch" AC_SUBST([CC_BIARCH]) # In maintainer mode we really need flex and bison. # Otherwise we really need a release dir with maintainer files generated. if test "x$enable_maintainer_mode" = xyes; then AC_CHECK_PROG(HAVE_FLEX, flex, yes, no) if test "$HAVE_FLEX" = "no"; then AC_MSG_ERROR([flex needed in maintainer mode]) fi AC_CHECK_PROG(HAVE_BISON, bison, yes, no) if test "$HAVE_BISON" = "no"; then AC_MSG_ERROR([bison needed in maintainer mode]) fi AC_CHECK_PROG(HAVE_GAWK, gawk, yes, no) if test "$HAVE_GAWK" = "no"; then AC_MSG_ERROR([gawk needed in maintainer mode]) fi else if test ! -f ${srcdir}/libdw/known-dwarf.h; then AC_MSG_ERROR([No libdw/known-dwarf.h. configure --enable-maintainer-mode]) fi fi # The testfiles are all compressed, we need bunzip2 when running make check AC_CHECK_PROG(HAVE_BUNZIP2, bunzip2, yes, no) if test "$HAVE_BUNZIP2" = "no"; then AC_MSG_WARN([No bunzip2, needed to run make check]) fi # For tests that need to use zstd compression AC_CHECK_PROG(HAVE_ZSTD, zstd, yes, no) AM_CONDITIONAL([HAVE_ZSTD],[test "x$HAVE_ZSTD" = "xyes"]) # For tests that need to use C++11 AX_CXX_COMPILE_STDCXX(11, noext, optional) AS_IF([test "x$HAVE_CXX11" = "x1"], [HAVE_CXX11=yes], [HAVE_CXX11=no]) AM_CONDITIONAL([HAVE_CXX11],[test "x$HAVE_CXX11" = "xyes"]) # Look for libcurl for libdebuginfod minimum version as per rhel7. AC_ARG_ENABLE([libdebuginfod],AS_HELP_STRING([--enable-libdebuginfod], [Build debuginfod client library (can be =dummy)])) AS_IF([test "x$enable_libdebuginfod" != "xno"], [ if test "x$enable_libdebuginfod" != "xdummy"; then AC_MSG_NOTICE([checking libdebuginfod dependencies, --disable-libdebuginfod or --enable-libdebuginfo=dummy to skip]) enable_libdebuginfod=yes # presume success PKG_PROG_PKG_CONFIG PKG_CHECK_MODULES([libcurl],[libcurl >= 7.29.0],[],[enable_libdebuginfod=no]) if test "x$enable_libdebuginfod" = "xno"; then AC_MSG_ERROR([dependencies not found, use --disable-libdebuginfod to disable or --enable-libdebuginfod=dummy to build a (bootstrap) dummy library.]) fi else AC_MSG_NOTICE([building (bootstrap) dummy libdebuginfo library]) fi ]) AC_CHECK_LIB(pthread, pthread_setname_np, [ AC_DEFINE([HAVE_PTHREAD_SETNAME_NP],[1],[Enable pthread_setname_np])]) AS_IF([test "x$enable_libdebuginfod" = "xyes" || test "x$enable_libdebuginfod" = "xdummy"], [AC_DEFINE([ENABLE_LIBDEBUGINFOD], [1], [Enable libdebuginfod])]) AS_IF([test "x$enable_libdebuginfod" = "xdummy"], [AC_DEFINE([DUMMY_LIBDEBUGINFOD], [1], [Build dummy libdebuginfod])]) AM_CONDITIONAL([LIBDEBUGINFOD],[test "x$enable_libdebuginfod" = "xyes" || test "x$enable_libdebuginfod" = "xdummy"]) AM_CONDITIONAL([DUMMY_LIBDEBUGINFOD],[test "x$enable_libdebuginfod" = "xdummy"]) AC_CHECK_HEADERS([execinfo.h]) # Look for libmicrohttpd, libarchive, sqlite for debuginfo server and srcfiles tool # minimum versions as per rhel7. AC_ARG_ENABLE([debuginfod],AS_HELP_STRING([--enable-debuginfod], [Build debuginfod server])) AS_IF([test "x$enable_debuginfod" != "xno"], [ if test "x$HAVE_CXX11" = "xno"; then AC_MSG_ERROR([the compiler does not support C++11, use --disable-debuginfod to disable.]) fi AC_MSG_NOTICE([checking debuginfod dependencies, --disable-debuginfod to skip]) if test "x$enable_libdebuginfod" = "xno"; then AC_MSG_ERROR([need libdebuginfod (or dummy), use --disable-debuginfod to disable.]) fi enable_debuginfod=yes # presume success AC_DEFINE([HAVE_LIBARCHIVE], [1], [Define to 1 if libarchive is available]) # presume success PKG_PROG_PKG_CONFIG PKG_CHECK_MODULES([libmicrohttpd],[libmicrohttpd >= 0.9.33],[],[enable_debuginfod=no]) PKG_CHECK_MODULES([oldlibmicrohttpd],[libmicrohttpd < 0.9.51],[old_libmicrohttpd=yes],[old_libmicrohttpd=no]) PKG_CHECK_MODULES([sqlite3],[sqlite3 >= 3.7.17],[],[enable_debuginfod=no]) PKG_CHECK_MODULES([libarchive],[libarchive >= 3.1.2],[],[enable_debuginfod=no], AC_DEFINE([HAVE_LIBARCHIVE], [0], [Define to 0 if libarchive is not available])) if test "x$enable_debuginfod" = "xno"; then AC_MSG_ERROR([dependencies not found, use --disable-debuginfod to disable.]) fi ]) AS_IF([test "x$enable_debuginfod" != "xno"],AC_DEFINE([ENABLE_DEBUGINFOD],[1],[Build debuginfod])) AM_CONDITIONAL([DEBUGINFOD],[test "x$enable_debuginfod" = "xyes"]) AM_CONDITIONAL([OLD_LIBMICROHTTPD],[test "x$old_libmicrohttpd" = "xyes"]) dnl for /etc/profile.d/elfutils.{csh,sh} default_debuginfod_urls="" AC_ARG_ENABLE(debuginfod-urls, [AS_HELP_STRING([--enable-debuginfod-urls@<:@=URLS@:>@],[add URLS to profile.d DEBUGINFOD_URLS])], [if test "x${enableval}" = "xyes"; then default_debuginfod_urls="https://debuginfod.elfutils.org/"; elif test "x${enableval}" != "xno"; then default_debuginfod_urls="${enableval}"; fi], [default_debuginfod_urls=""]) AC_SUBST(DEBUGINFOD_URLS, $default_debuginfod_urls) AC_CONFIG_FILES([config/profile.sh config/profile.csh]) AC_OUTPUT AC_MSG_NOTICE([ ===================================================================== elfutils: ${PACKAGE_VERSION} (eu_version: ${eu_version}) ===================================================================== Prefix : ${prefix} Program prefix ("eu-" recommended) : ${program_prefix} Source code location : ${srcdir} Maintainer mode : ${enable_maintainer_mode} build arch : ${ac_cv_build} CFLAGS=${CFLAGS} CXXFLAGS=${CXXFLAGS} RECOMMENDED FEATURES (should all be yes) gzip support : ${with_zlib} bzip2 support : ${with_bzlib} lzma/xz support : ${with_lzma} zstd support : ${with_zstd} zstd compression support : ${with_zstd_compress} libstdc++ demangle support : ${enable_demangler} File textrel check : ${enable_textrelcheck} Symbol versioning : ${enable_symbol_versioning} NOT RECOMMENDED FEATURES (should all be no) Experimental thread safety : ${use_locks} install elf.h : ${install_elfh} OTHER FEATURES Deterministic archives by default : ${default_ar_deterministic} Native language support : ${USE_NLS} Extra Valgrind annotations : ${use_vg_annotations} libdebuginfod client support : ${enable_libdebuginfod} Debuginfod server support : ${enable_debuginfod} Default DEBUGINFOD_URLS : ${default_debuginfod_urls} EXTRA TEST FEATURES (used with make check) have bunzip2 installed (required) : ${HAVE_BUNZIP2} have zstd installed : ${HAVE_ZSTD} C++11 : ${HAVE_CXX11} debug branch prediction : ${use_debugpred} gprof support : ${use_gprof} gcov support : ${use_gcov} run all tests under valgrind : ${use_valgrind} gcc undefined behaviour sanitizer : ${use_undefined} gcc address sanitizer : ${use_address} clang memory sanitizer : ${use_msan} use rpath in tests : ${tests_use_rpath} test biarch : ${utrace_cv_cc_biarch} ]) if test "$install_elfh" = yes; then if test "${prefix}" = "/usr/local" -o "${prefix}" = "/usr"; then AC_MSG_WARN([installing elf.h in ${includedir} might conflict with glibc/system elf.h]) fi fi