# DP: Fix --with-long-double-128 for sparc32 when defaulting to 64-bit.

On sparc, the --with-long-double-128 option doesn't change anything for
a 64-bit compiler, as it always default to 128-bit long doubles. For
a 32/64-bit compiler defaulting to 32-bit this correctly control the
size of long double of the 32-bit compiler, however for a 32/64-bit
compiler defaulting to 64-bit, the built-in specs force the 
-mlong-double-64 option. This makes the option useless in this case.

The patch below fixes that by removing the -mlong-double-64 from the
built-in spec, using the default instead.

Changelog gcc/

2013-12-04  Aurelien Jarno  <aurelien@aurel32.net>

	* config/sparc/linux64.h (CC1_SPEC): When defaulting to 64-bit,
	don't force -mlong-double-64 when -m32 or -mv8plus is given.

--- a/src/gcc/config/sparc/linux64.h
+++ b/src/gcc/config/sparc/linux64.h
@@ -160,9 +160,9 @@ extern const char *host_detect_local_cpu
 #else
 #define CC1_SPEC GNU_USER_TARGET_CC1_SPEC ASAN_CC1_SPEC \
 "%{m32:%{m64:%emay not use both -m32 and -m64}} \
-%{m32:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
+%{m32:-mptr32 -mno-stack-bias \
   %{!mcpu*:-mcpu=cypress}} \
-%{mv8plus:-mptr32 -mno-stack-bias %{!mlong-double-128:-mlong-double-64} \
+%{mv8plus:-mptr32 -mno-stack-bias \
   %{!mcpu*:-mcpu=v9}} \
 %{!m32:%{!mcpu*:-mcpu=ultrasparc}} \
 %{!mno-vis:%{!m32:%{!mcpu=v9:-mvis}}}"