AC_CANONICAL_TARGET
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([no-dist parallel-tests])
AM_CONFIG_HEADER(config.h:config.in)
AC_DEFINE_UNQUOTED(TARGET_SYSTEM_ROOT_RELOCATABLE, $sysroot_relocatable,
[Whether the system root can be relocated])
+dnl "install_as_default" is true if the linker to be installed as the
+dnl default linker, ld.
+dnl "installed_linker" is the installed gold linker name.
+
+default_ld=
+AC_ARG_ENABLE(ld,
+[[ --enable-ld[=ARG] build ld [ARG={default,yes,no}]]],
+[case "${enableval}" in
+ default)
+ default_ld=ld.bfd
+ ;;
+esac])
+
+AC_ARG_ENABLE(gold,
+[[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]],
+[case "${enableval}" in
+ yes|default)
+ if test x${default_ld} = x; then
+ install_as_default=yes
+ fi
+ installed_linker=ld.gold
+ ;;
+ no)
+ ;;
+ *)
+ AC_MSG_ERROR([invalid --enable-gold argument])
+ ;;
+ esac],
+[install_as_default=no
+ installed_linker=ld.gold])
+AC_SUBST(install_as_default)
+AC_SUBST(installed_linker)
+
dnl For now threads are a configure time option.
AC_ARG_ENABLE([threads],
[ --enable-threads multi-threaded linking],
default_size=$targ_size
default_big_endian=$targ_big_endian
default_osabi=$targ_osabi
+
+ AM_CONDITIONAL(DEFAULT_TARGET_ARM, test "$targ_obj" = "arm")
+ AM_CONDITIONAL(DEFAULT_TARGET_I386, test "$targ_obj" = "i386")
+ AM_CONDITIONAL(DEFAULT_TARGET_POWERPC, test "$targ_obj" = "powerpc")
+ AM_CONDITIONAL(DEFAULT_TARGET_SPARC, test "$targ_obj" = "sparc")
+ AM_CONDITIONAL(DEFAULT_TARGET_X86_64, test "$targ_obj" = "x86_64")
fi
fi
fi
done
+# Remove any duplicates.
+to=""
+for t in $targetobjs; do
+ case " $to " in
+ *" $t "*) ;;
+ *) to="$to $t" ;;
+ esac
+done
+targetobjs=$to
+
if test -n "$targ_32_little"; then
AC_DEFINE(HAVE_TARGET_32_LITTLE, 1,
[Define to support 32-bit little-endian targets])
test "x$target_alias" = "x" -o "x$host_alias" = "x$target_alias")
AM_CONDITIONAL(GCC, test "$GCC" = yes)
+AM_CONDITIONAL(NATIVE_OR_CROSS_LINKER,
+ test "x$target_alias" = "x" -o "x$host_alias" = "x$target_alias" -o "x$host_alias" = "x$build_alias")
+
dnl Some architectures do not support taking pointers of functions
dnl defined in shared libraries except in -fPIC mode. We need to
dnl tell the unittest framework if we're compiling for one of those
*) true;;
esac])
+dnl Test for gcc 4.1 or later. Full support for -mcmodel=medium is
+dnl only available in gcc 4.1.
+AC_CACHE_CHECK([for gcc >= 4.1], [gold_cv_prog_gcc41],
+[AC_COMPILE_IFELSE([
+#if !defined __GNUC__
+error
+#elif __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
+error
+#endif
+], [gold_cv_prog_gcc41=yes], [gold_cv_prog_gcc41=no])])
+
+dnl Whether we can test -mcmodel=medium.
+AM_CONDITIONAL(MCMODEL_MEDIUM,
+[test "$target_cpu" = "x86_64" -a "$gold_cv_prog_gcc41" = "yes"])
+
dnl Test for __thread support.
AC_CACHE_CHECK([for thread support], [gold_cv_c_thread],
[AC_COMPILE_IFELSE([__thread int i = 1;],
fi
AC_SUBST(RANDOM_SEED_CFLAGS)
+dnl On GNU/Linux ifunc is supported by the dynamic linker in glibc
+dnl 2.11 or later, and by binutils 2.20.1 or later.
+AC_CACHE_CHECK([for glibc >= 2.11], [gold_cv_lib_glibc2_11],
+[AC_COMPILE_IFELSE([
+#include <features.h>
+#if !defined __GLIBC__
+error
+#elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 11)
+error
+#endif
+__asm__(".type foo, %gnu_indirect_function");
+], [gold_cv_lib_glibc2_11=yes], [gold_cv_lib_glibc2_11=no])])
+
+AM_CONDITIONAL(IFUNC, test "$gold_cv_lib_glibc2_11" = "yes")
+
AM_BINUTILS_WARNINGS
-WARN_CXXFLAGS=`echo ${WARN_CFLAGS} | sed -e 's/-Wstrict-prototypes//' -e 's/-Wmissing-prototypes//'`
+WARN_CXXFLAGS=`echo ${WARN_CFLAGS} | sed -e 's/-Wstrict-prototypes//' -e 's/-Wmissing-prototypes//' -e 's/-Wshadow//'`
AC_SUBST(WARN_CXXFLAGS)
dnl Force support for large files by default. This may need to be
AC_SUBST(LFS_CFLAGS)
AC_CHECK_FUNCS(chsize)
-AC_REPLACE_FUNCS(pread ftruncate mremap)
+AC_REPLACE_FUNCS(pread ftruncate mremap ffsll)
# Link in zlib if we can. This allows us to write compressed sections.
AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
AM_CONDITIONAL(HAVE_ZLIB, test "$ac_cv_search_zlibVersion" != "no")
+dnl We have to check these in C, not C++, because autoconf generates
+dnl tests which have no type information, and current glibc provides
+dnl multiple declarations of functions like basename when compiling
+dnl with C++.
+AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp])
+
AC_LANG_PUSH(C++)
AC_CHECK_HEADERS(tr1/unordered_set tr1/unordered_map)
AC_CHECK_HEADERS(ext/hash_map ext/hash_set)
AC_CHECK_HEADERS(byteswap.h)
-AC_CHECK_FUNCS(mallinfo posix_fallocate)
+AC_CHECK_FUNCS(mallinfo posix_fallocate readv sysconf times)
+AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp, strndup, memmem])
+
+# Use of ::std::tr1::unordered_map::rehash causes undefined symbols
+# at link time with some versions of GCC.
+AC_CACHE_CHECK([whether ::std::tr1::unordered_map::rehash is usable.],
+[gold_cv_unordered_map_rehash],
+[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+#include <tr1/unordered_map>
+void bar() { ::std::tr1::unordered_map<int, int> x; x.rehash(10); }
+]])], [gold_cv_unordered_map_rehash=yes], [gold_cv_unordered_map_rehash=no])])
+if test "$gold_cv_unordered_map_rehash" = "yes"; then
+ AC_DEFINE(HAVE_TR1_UNORDERED_MAP_REHASH, 1,
+ [Define if ::std::tr1::unordered_map::rehash is usable])
+fi
# gcc 4.3.0 doesn't recognize the printf attribute on a template
# function. Check for that. This is gcc bug 35546. This test can
[Define if attributes work on C++ templates])
fi
+dnl Check if the system has struct stat::st_mtim.
+AC_CACHE_CHECK([for struct stat::st_mtim.],
+[gold_cv_stat_st_mtim],
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/stat.h>
+long bar() { struct stat s; return (long)(s.st_mtim.tv_sec + s.st_mtim.tv_sec);}
+]])], [gold_cv_stat_st_mtim=yes], [gold_cv_stat_st_mtim=no])])
+if test "$gold_cv_stat_st_mtim" = "yes"; then
+ AC_DEFINE(HAVE_STAT_ST_MTIM, 1,
+ [Define if struct stat has a field st_mtim with timespec for mtime])
+fi
+
AC_LANG_POP(C++)
AM_MAINTAINER_MODE
projects / deliverable / binutils-gdb.git / blobdiff