Introduce dw2_linkage_name and dw2_linkage_name_attr.

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

diff --git a/gold/configure.ac b/gold/configure.ac
index c08d0a2de228316f477664ec28861d839b37cdec..d7fa1f88e8bdae617f04eeee76dd6f1ad9ec8d84 100644 (file)
--- a/gold/configure.ac
+++ b/gold/configure.ac
@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 dnl
-dnl   Copyright (C) 2006-2015 Free Software Foundation, Inc.
+dnl   Copyright (C) 2006-2017 Free Software Foundation, Inc.
 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
@@ -49,7 +49,7 @@ fi
 
 sysroot_relocatable=0
 if test -n "$sysroot"; then
-  case "sysroot" in
+  case "$sysroot" in
     "${prefix}" | "${prefix}/"* | \
     "${exec_prefix}" | "${exec_prefix}/"* | \
     '${prefix}' | '${prefix}/'*| \
@@ -114,6 +114,23 @@ if test "$plugins" = "yes"; then
 fi
 AM_CONDITIONAL(PLUGINS, test "$plugins" = "yes")
 
+# Decide if -z relro should be enabled in ELF linker by default.
+ac_default_ld_z_relro=unset
+# Provide a configure time option to override our default.
+AC_ARG_ENABLE(relro,
+             AS_HELP_STRING([--enable-relro],
+             [enable -z relro in ELF linker by default]),
+[case "${enableval}" in
+  yes)  ac_default_ld_z_relro=1 ;;
+  no)  ac_default_ld_z_relro=0 ;;
+esac])dnl
+if test "${ac_default_ld_z_relro}" = unset; then
+  ac_default_ld_z_relro=1
+fi
+AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_RELRO,
+  $ac_default_ld_z_relro,
+  [Define to 1 if you want to enable -z relro in ELF linker by default.])
+
 AC_ARG_ENABLE([targets],
 [  --enable-targets        alternative target configurations],
 [case "${enableval}" in
@@ -144,6 +161,26 @@ if test -n "$enable_targets"; then
   done
 fi
 
+# Decide which "--hash-style" to use by default
+# Provide a configure time option to override our default.
+AC_ARG_ENABLE([default-hash-style],
+AS_HELP_STRING([--enable-default-hash-style={sysv,gnu,both}],
+              [use this default hash style]),
+[case "${enable_default_hash_style}" in
+  sysv | gnu | both) ;;
+  *) AC_MSG_ERROR([bad value ${enable_default_hash_style} for enable-default-hash-style option]) ;;
+esac],
+[case "${target}" in
+  # Enable gnu hash only on GNU targets, but not mips
+  mips*-*-*) enable_default_hash_style=sysv ;;
+  *-*-gnu* | *-*-linux* | *-*-nacl*) enable_default_hash_style=both ;;
+  *) enable_default_hash_style=sysv ;;
+esac])
+
+AC_DEFINE_UNQUOTED([DEFAULT_HASH_STYLE],
+  ["${enable_default_hash_style}"],
+  [Set the default --hash-style value])
+
 # See which specific instantiations we need.
 targetobjs=
 all_targets=
@@ -204,6 +241,7 @@ for targ in $target $canon_targets; do
        AM_CONDITIONAL(DEFAULT_TARGET_I386, test "$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_S390, test "$targ_obj" = "s390")
        target_x86_64=no
        target_x32=no
        if test "$targ_obj" = "x86_64"; then
@@ -219,6 +257,8 @@ for targ in $target $canon_targets; do
        fi
        AM_CONDITIONAL(DEFAULT_TARGET_X86_64, test "$target_x86_64" = "yes")
        AM_CONDITIONAL(DEFAULT_TARGET_X32, test "$target_x32" = "yes")
+       AM_CONDITIONAL(DEFAULT_TARGET_X86_64_OR_X32,
+                      test "$target_x86_64" = "yes" -o "$target_x32" = "yes")
        AM_CONDITIONAL(DEFAULT_TARGET_TILEGX, test "$targ_obj" = "tilegx")
         AM_CONDITIONAL(DEFAULT_TARGET_MIPS, test "$targ_obj" = "mips")
        DEFAULT_TARGET=${targ_obj}
@@ -331,6 +371,7 @@ AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC, [
     powerpc*) false;;
     x86_64) false;;
     sparc64) false;;
+    s390x) false;;
     *) true;;
   esac])
 
@@ -528,7 +569,6 @@ fi
 
 # Link in zlib if we can.  This allows us to write compressed sections.
 AM_ZLIB
-AM_CONDITIONAL(HAVE_ZLIB, test "$ac_cv_header_zlib_h" = "yes")
 
 dnl We have to check these in C, not C++, because autoconf generates
 dnl tests which have no type information, and current glibc provides