Support compressed debug sections

	* configure.ac (gcc_cv_as_compress_debug): Check for assembler
	compressed debug support.
	(gcc_cv_ld_compress_debug): Check for linker compressed debug
	support.
	* configure: Regenerate.
	* config.in: Regenerate.
	* common.opt (compressed_debug_sections): New enum.
	(gz, gz=): New options.
	* gcc.c (LINK_COMPRESS_DEBUG_SPEC, ASM_COMPRESS_DEBUG_SPEC):
	Define.
	(LINK_COMMAND_SPEC): Invoke LINK_COMPRESS_DEBUG_SPEC.
	(asm_options): Invoke ASM_COMPRESS_DEBUG_SPEC.
	* config/darwin.h (LINK_COMMAND_SPEC_A): Invoke
	LINK_COMPRESS_DEBUG_SPEC.
	* config/i386/djgpp.h (LINK_COMMAND_SPEC): Likewise.
	* opts.c (common_handle_option): Handle OPT_gz, OPT_gz_.
	* doc/invoke.texi (Option Summary, Debugging Options): Add
	-gz[=type].
	(Debugging Options): Document -gz[=type].

From-SVN: r212072

1 files changed, 5 insertions, 0 deletions

diff --git a/gcc/opts.c b/gcc/opts.c
index 19203dc..419a074 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -1879,6 +1879,11 @@ common_handle_option (struct gcc_options *opts,
 		       loc);
       break;
 
+    case OPT_gz:
+    case OPT_gz_:
+      /* Handled completely via specs.  */
+      break;
+
     case OPT_pedantic_errors:
       dc->pedantic_errors = 1;
       control_warning_option (OPT_Wpedantic, DK_ERROR, value,