fi
AM_CONDITIONAL(THREADS, test "$threads" = "yes")
+AC_ARG_ENABLE([plugins],
+[ --enable-plugins linker plugins],
+[case "${enableval}" in
+ yes | "") plugins=yes ;;
+ no) plugins=no ;;
+ *) plugins=yes ;;
+ esac],
+[plugins=no])
+if test "$plugins" = "yes"; then
+ AC_DEFINE(ENABLE_PLUGINS, 1,
+ [Define to enable linker plugins])
+fi
+AM_CONDITIONAL(PLUGINS, test "$plugins" = "yes")
+
AC_ARG_ENABLE([targets],
[ --enable-targets alternative target configurations],
[case "${enableval}" in
default_machine=
default_size=
default_big_endian=
+default_osabi=ELFOSABI_NONE
targ_32_little=
targ_32_big=
targ_64_little=
AC_MSG_ERROR("unsupported target $targ")
else
targetobjs="$targetobjs ${targ_obj}.\$(OBJEXT)"
+ if test "$targ_extra_obj" != ""; then
+ targetobjs="$targetobjs ${targ_extra_obj}.\$(OBJEXT)"
+ fi
if test "$targ_size" = "32" -o "$targ_extra_size" = "32"; then
if test "$targ_big_endian" = "true" \
-o "$targ_extra_big_endian" = "true"; then
default_machine=$targ_machine
default_size=$targ_size
default_big_endian=$targ_big_endian
+ default_osabi=$targ_osabi
fi
fi
fi
[Default size (32 or 64)])
AC_DEFINE_UNQUOTED(GOLD_DEFAULT_BIG_ENDIAN, $default_big_endian,
[Default big endian (true or false)])
+AC_DEFINE_UNQUOTED(GOLD_DEFAULT_OSABI, $default_osabi,
+ [Default OSABI code])
AC_PROG_CC
AC_PROG_CXX
case $target_cpu in
i?86) true;;
x86_64) false;;
+ sparc64) false;;
*) true;;
esac])
AM_CONDITIONAL(STATIC_TLS, test "$gold_cv_lib_glibc24" = "yes")
+dnl Test for #pragma omp threadprivate
+AC_CACHE_CHECK([for omp support], [gold_cv_c_threadprivate],
+[save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -fopenmp"
+AC_COMPILE_IFELSE([
+#include <omp.h>
+int i;
+#pragma omp threadprivate (i)
+], [gold_cv_c_threadprivate=yes], [gold_cv_c_threadprivate=no])
+CFLAGS="$save_CFLAGS"])
+if test "$gold_cv_c_threadprivate" = "yes"; then
+ AC_DEFINE(HAVE_OMP_SUPPORT, 1,
+ [Define if compiler supports #pragma omp threadprivate])
+fi
+AM_CONDITIONAL(OMP_SUPPORT, test "$gold_cv_c_threadprivate" = "yes")
+
dnl Test for the -ftls-dialect=gnu2 option.
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mtls-dialect=gnu2"
AM_CONDITIONAL(TLS_GNU2_DIALECT, test "$have_tls_gnu2" = "yes")
dnl On GNU/Linux TLS descriptors are supported by the dynamic loader
-dnl only with glibc 2.5 or later.
-AC_CACHE_CHECK([for glibc >= 2.5], [gold_cv_lib_glibc25],
+dnl only with glibc 2.9 or later.
+AC_CACHE_CHECK([for glibc >= 2.9], [gold_cv_lib_glibc29],
[AC_COMPILE_IFELSE([
#include <features.h>
#if !defined __GLIBC__
error
-#elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 5)
+#elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 9)
error
#endif
-], [gold_cv_lib_glibc25=yes], [gold_cv_lib_glibc25=no])])
+], [gold_cv_lib_glibc29=yes], [gold_cv_lib_glibc29=no])])
-AM_CONDITIONAL(TLS_DESCRIPTORS, test "$gold_cv_lib_glibc25" = "yes")
+AM_CONDITIONAL(TLS_DESCRIPTORS, test "$gold_cv_lib_glibc29" = "yes")
dnl Check whether the compiler supports constructor priorities in
dnl attributes, which were added in gcc 4.3.
AM_CONDITIONAL(CONSTRUCTOR_PRIORITY, test "$gold_cv_c_conprio" = "yes")
+dnl Test for the -frandom-seed option.
+AC_CACHE_CHECK([for -frandom-seed support], [gold_cv_c_random_seed],
+[save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -frandom-seed=foo"
+AC_COMPILE_IFELSE([int i;], [gold_cv_c_random_seed=yes],
+[gold_cv_c_random_seed=no])
+CFLAGS="$save_CFLAGS"])
+if test "$gold_cv_c_random_seed" = "yes"; then
+ # In Makefile, '$@' will be expanded to be the name of the file
+ # being built, providing a unique seed for each file.
+ RANDOM_SEED_CFLAGS=-frandom-seed=\$@
+fi
+AC_SUBST(RANDOM_SEED_CFLAGS)
+
AM_BINUTILS_WARNINGS
WARN_CXXFLAGS=`echo ${WARN_CFLAGS} | sed -e 's/-Wstrict-prototypes//' -e 's/-Wmissing-prototypes//'`
LFS_CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
AC_SUBST(LFS_CFLAGS)
-AC_REPLACE_FUNCS(pread)
+AC_CHECK_FUNCS(chsize)
+AC_REPLACE_FUNCS(pread ftruncate mremap ffsll)
# Link in zlib if we can. This allows us to write compressed sections.
AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
AC_CHECK_HEADERS(tr1/unordered_set tr1/unordered_map)
AC_CHECK_HEADERS(ext/hash_map ext/hash_set)
-AC_CHECK_FUNCS(mallinfo)
+AC_CHECK_HEADERS(byteswap.h)
+AC_CHECK_FUNCS(mallinfo posix_fallocate)
+
+# Use of ::std::tr1::unordered_map::rehash causes undefined symbols
+# at link time with some versions of GCC.
+AC_CACHE_CHECK([whether ::std::tr1::unordered_map::rehash is usable.],
+[gold_cv_unordered_map_rehash],
+[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
+#include <tr1/unordered_map>
+void bar() { ::std::tr1::unordered_map<int, int> x; x.rehash(10); }
+]])], [gold_cv_unordered_map_rehash=yes], [gold_cv_unordered_map_rehash=no])])
+if test "$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
projects / deliverable / binutils-gdb.git / blobdiff