Add --enable-compressed-debug-sections={all,gas,gold,ld}

This patch removes the gas configure option:

--enable-compressed-debug-sections

and adds a toplevel configure option:

--enable-compressed-debug-sections={all,gas,gold,ld}

to enable compressed debug sections for gas, gold or ld by default.  At
the moment, this configure option is ignored by gold and ld.  For x86
Linux targets, default to compressing debug sections in gas.

	PR gas/19109
	* configure.ac: Add
	--enable-compressed-debug-sections={all,gas,gold,ld}.
	* configure: Regenerated.

gas/

	PR gas/19109
	* NEWS: Update --enable-compressed-debug-sections=.
	* configure.ac: Remove --enable-compressed-debug-sections.
	(DEFAULT_FLAG_COMPRESS_DEBUG): Check
	--enable-compressed-debug-sections={all,gas} instead of
	--enable-compressed-debug-sections.  For x86 Linux targets,
	default to compressing debug sections.
	* configure: Regenerated.

1 files changed, 8 insertions, 15 deletions

diff --git a/gas/configure.ac b/gas/configure.ac
index 278b45d..b15da9a 100644
--- a/gas/configure.ac
+++ b/gas/configure.ac
@@ -64,18 +64,6 @@ if test x$ac_checking != x ; then
   AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
 fi
 
-# PR gas/19109
-# Decide the default method for compressing debug sections.
-ac_default_compressed_debug_sections=unset
-# Provide a configure time option to override our default.
-AC_ARG_ENABLE(compressed_debug_sections,
-[  --enable-compressed-debug-sections  compress debug sections by default],
-[case "${enableval}" in
-  yes) ac_default_compressed_debug_sections=yes ;;
-  no)  ac_default_compressed_debug_sections=no ;;
-  *)   ac_default_compressed_debug_sections=unset ;;
-esac])dnl
-
 using_cgen=no
 
 AM_BINUTILS_WARNINGS
@@ -548,9 +536,14 @@ changequote([,])dnl
 
 done
 
-if test x$ac_default_compressed_debug_sections == xyes ; then
-  AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
-fi
+# For x86 Linux targets, default to compressing debug sections unless
+# configured otherwise.
+case x${enable_compressed_debug_sections}-${target_cpu_type}-${target_os} in
+x*gas*|xall*|x-i386-linux-gnu)
+  AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1,
+	    [Define if you want compressed debug sections by default.])
+  ;;
+esac
 
 # Turn on all targets if possible
 if test ${all_targets} = "yes"; then