x86: Extend assembler to generate GNU property notes

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

diff --git a/gas/configure.ac b/gas/configure.ac
index 79714eb3dca98a4ea51810a6cf391fedccddfa84..d8fddfb19e41b47cdbdf878f758e7bdff2146535 100644 (file)
--- a/gas/configure.ac
+++ b/gas/configure.ac
@@ -113,6 +113,19 @@ AC_ARG_ENABLE(generate_build_notes,
 esac])dnl
 
 
+# Decide if the x86 ELF assembler should default to generating GNU x86
+# used ISA and feature properties.
+ac_default_generate_x86_used_note=unset
+# Provide a configuration option to override the default.
+AC_ARG_ENABLE(x86-used-note,
+             AS_HELP_STRING([--enable-x86-used-note],
+             [generate GNU x86 used ISA and feature properties]),
+[case "${enableval}" in
+  yes)  ac_default_generate_x86_used_note=1 ;;
+  no)   ac_default_generate_x86_used_note=0 ;;
+esac])dnl
+
+
 using_cgen=no
 
 AM_BINUTILS_WARNINGS
@@ -613,6 +626,14 @@ AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_BUILD_NOTES,
   [Define to 1 if you want to generate GNU Build attribute notes
    by default, if none are contained in the input.])
 
+if test ${ac_default_generate_x86_used_note} = unset; then
+  ac_default_generate_x86_used_note=0
+fi
+AC_DEFINE_UNQUOTED(DEFAULT_X86_USED_NOTE,
+  $ac_default_generate_x86_used_note,
+  [Define to 1 if you want to generate GNU x86 used ISA and feature
+   properties by default.])
+
 if test x$ac_default_compressed_debug_sections = xyes ; then
   AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
 fi