sim: trace: add set of system helpers

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

diff --git a/gold/configure.ac b/gold/configure.ac
index c23117b6e75663ec741d045891759c551ff7ba1d..94cae313d0e890ad6879127365c76276ff794982 100644 (file)
--- a/gold/configure.ac
+++ b/gold/configure.ac
@@ -1,7 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 dnl
-dnl   Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
-dnl   Free Software Foundation, Inc.
+dnl   Copyright (C) 2006-2015 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
@@ -200,12 +199,28 @@ for targ in $target $canon_targets; do
        default_big_endian=$targ_big_endian
        default_osabi=$targ_osabi
 
+       AM_CONDITIONAL(DEFAULT_TARGET_AARCH64, test "$targ_obj" = "aarch64")
        AM_CONDITIONAL(DEFAULT_TARGET_ARM, test "$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")
+       target_x86_64=no
+       target_x32=no
+       if test "$targ_obj" = "x86_64"; then
+         case "$target" in
+         x86_64*-linux-gnux32)
+           target_x32=yes
+           default_size=32
+           ;;
+         *)
+           target_x86_64=yes
+           ;;
+         esac
+       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_TILEGX, test "$targ_obj" = "tilegx")
+        AM_CONDITIONAL(DEFAULT_TARGET_MIPS, test "$targ_obj" = "mips")
        DEFAULT_TARGET=${targ_obj}
        AC_SUBST(DEFAULT_TARGET)
       fi
@@ -343,8 +358,8 @@ AC_CACHE_CHECK([whether $CC supports -fmerge-constants],
 save_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -fmerge-constants"
 AC_COMPILE_IFELSE([const char *s = "foo";],
-                 [have_merge_constants=yes],
-                 [have_merge_constants=no])
+                 [gold_cv_merge_constants=yes],
+                 [gold_cv_merge_constants=no])
 CFLAGS="$save_CFLAGS"])
 AC_SUBST([MERGE_CONSTANTS_FLAG])
 AS_IF([test "$gold_cv_merge_constants" = yes],
@@ -513,7 +528,6 @@ 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
@@ -521,16 +535,41 @@ dnl multiple declarations of functions like basename when compiling
 dnl with C++.
 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp])
 
+dnl Check if gcc supports the -gpubnames option.
+dnl Use -Werror in case of compilers that make unknown -g options warnings.
+dnl They would pass the test here, but fail in actual use when $WARN_CFLAGS
+dnl gets set later by default Autoconf magic to include -Werror.  (We are
+dnl assuming here that there is no compiler that groks -gpubnames
+dnl but does not grok -Werror.)
+save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Werror -gpubnames"
+AC_COMPILE_IFELSE([int i;], [have_pubnames=yes], [have_pubnames=no])
+CFLAGS="$save_CFLAGS"
+AM_CONDITIONAL(HAVE_PUBNAMES, test "$have_pubnames" = "yes")
+
+dnl Check if gcc supports the -fno-use-linker-plugin option.
+save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -Werror -fno-use-linker-plugin"
+AC_COMPILE_IFELSE([int i;], [have_no_use_linker_plugin=yes], [have_no_use_linker_plugin=no])
+CFLAGS="$save_CFLAGS"
+AM_CONDITIONAL(HAVE_NO_USE_LINKER_PLUGIN, test "$have_no_use_linker_plugin" = "yes")
+
 AC_LANG_PUSH(C++)
 
+AC_CHECK_HEADERS(unordered_set unordered_map)
 AC_CHECK_HEADERS(tr1/unordered_set tr1/unordered_map)
 AC_CHECK_HEADERS(ext/hash_map ext/hash_set)
 AC_CHECK_HEADERS(byteswap.h)
 
 dnl When plugins enabled dynamic loader interface is required. Check headers
-dnl which may provide this interface. In case of dlfcn.h add libdl to link.
+dnl which may provide this interface. Add the necessary library to link.
 AC_CHECK_HEADERS(windows.h)
-AC_CHECK_HEADERS(dlfcn.h, [DLOPEN_LIBS="-ldl"], [DLOPEN_LIBS=""])
+AC_CHECK_HEADERS(dlfcn.h)
+AC_SEARCH_LIBS(dlopen, [dl dld])
+case "$ac_cv_search_dlopen" in
+  no*) DLOPEN_LIBS="";;
+  *)   DLOPEN_LIBS="$ac_cv_search_dlopen";;
+esac
 AC_SUBST(DLOPEN_LIBS)
 
 AC_CHECK_FUNCS(mallinfo posix_fallocate fallocate readv sysconf times)
@@ -596,18 +635,6 @@ if test "$gold_cv_stat_st_mtim" = "yes"; then
            [Define if struct stat has a field st_mtim with timespec for mtime])
 fi
 
-dnl Check if gcc supports the -gpubnames option.
-dnl Use -Werror in case of compilers that make unknown -g options warnings.
-dnl They would pass the test here, but fail in actual use when $WARN_CFLAGS
-dnl gets set later by default Autoconf magic to include -Werror.  (We are
-dnl assuming here that there is no compiler that groks -gpubnames
-dnl but does not grok -Werror.)
-save_CXXFLAGS="$CXXFLAGS"
-CXXFLAGS="$CXXFLAGS -Werror -gpubnames"
-AC_COMPILE_IFELSE([int i;], [have_pubnames=yes], [have_pubnames=no])
-CXXFLAGS="$save_CXXFLAGS"
-AM_CONDITIONAL(HAVE_PUBNAMES, test "$have_pubnames" = "yes")
-
 AC_LANG_POP(C++)
 
 AC_CHECK_HEADERS(locale.h)