* x86_64.cc (Target_x86_64::saw_tls_block_reloc_): Remove member.

[binutils-gdb.git] / gold / configure.ac

diff --git a/gold/configure.ac b/gold/configure.ac
index 2f9cc43a99ebef2578980186d3fb4ea6e2dce533..ba6bd172353c838b42b3120038c1dccaecdb50d4 100644 (file)
--- a/gold/configure.ac
+++ b/gold/configure.ac
@@ -7,7 +7,7 @@ AC_CONFIG_SRCDIR(gold.cc)
 
 AC_CANONICAL_TARGET
 
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([no-dist parallel-tests])
 
 AM_CONFIG_HEADER(config.h:config.in)
 
@@ -38,6 +38,33 @@ AC_DEFINE_UNQUOTED(TARGET_SYSTEM_ROOT, "$sysroot",
 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.
+AC_ARG_ENABLE(gold,
+[[  --enable-gold[=ARG]     build gold [ARG={both}[/{gold,ld}]]]],
+[case "${enableval}" in 
+ yes)
+   install_as_default=gold
+   installed_linker=ld
+   ;;
+ both/gold)
+   install_as_default=yes
+   installed_linker=ld.gold
+   ;;
+ both|both/ld)
+   install_as_default=no
+   installed_linker=ld.gold
+   ;;
+ *)
+   AC_MSG_ERROR([invalid --enable-gold argument])
+   ;;
+ esac],
+[install_as_default=gold
+ installed_linker=ld])
+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],
@@ -162,6 +189,16 @@ for targ in $target $canon_targets; do
   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])
@@ -227,8 +264,20 @@ AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC, [
     *) 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 "$target_cpu" = "x86_64"])
+AM_CONDITIONAL(MCMODEL_MEDIUM,
+[test "$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],
@@ -310,6 +359,20 @@ if test "$gold_cv_c_random_seed" = "yes"; then
 fi
 AC_SUBST(RANDOM_SEED_CFLAGS)
 
+dnl On GNU/Linux ifunc is supported by the dynamic linker in glibc
+dnl 2.11 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
+], [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//' -e 's/-Wshadow//'`
@@ -338,7 +401,7 @@ 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 readv)
+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