gcc.c: Document %{, in big comment at top.

	* gcc.c: Document %{, in big comment at top.
	(input_suffix_matches): Remove special handling for .s and
	.S.
	(input_spec_matches): New.
	(handle_braces): Handle %{,.
	(validate_switches): ',' indicates a value which is not a switch.
	* config/alpha/osf.h (ASM_FINAL_SPEC): Use %{, rather than %{.
	to detect assembler input.
	* config/i386/sol2.h (CPP_SPEC): Likewise.
	* config/rs6000/sysv4.h (ASM_SPEC): Likewise.
	* config/rs6000/vxworks.h (ASM_SPEC): Likewise.
	* config/rs6000/lynx.h (ASM_SPEC): Likewise.
	* config/rs6000/linux64.h (ASM_SPEC_COMMON): Likewise.
	* config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Objective-C plus
	-m64 causes deployment target to default to 10.5.
	* config/rs6000/darwin.h (DARWIN_MINVERSION_SPEC): Likewise.

From-SVN: r122783

5 files changed, 10 insertions, 8 deletions

diff --git a/gcc/config/rs6000/darwin.h b/gcc/config/rs6000/darwin.h
index 6aa7d65..23e387b 100644
--- a/gcc/config/rs6000/darwin.h
+++ b/gcc/config/rs6000/darwin.h
@@ -122,9 +122,12 @@
   "%{!m64:%:version-compare(!> 10.4 mmacosx-version-min= crt2.o%s)}"
 
 /* Determine a minimum version based on compiler options.  */
-#define DARWIN_MINVERSION_SPEC	\
-  "%{m64:10.4;			\
-     shared-libgcc:10.3;	\
+#define DARWIN_MINVERSION_SPEC					\
+  "%{m64:%{fgnu-runtime:10.4;					\
+	   ,objective-c|,objc-cpp-output:10.5;			\
+	   ,objective-c++|,objective-c++-cpp-output:10.5;	\
+	   :10.4};						\
+     shared-libgcc:10.3;					\
      :10.1}"
 
 #undef SUBTARGET_EXTRA_SPECS
diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h
index 8937dcd..00853fe 100644
--- a/gcc/config/rs6000/linux64.h
+++ b/gcc/config/rs6000/linux64.h
@@ -165,7 +165,7 @@ extern int dot_symbols;
 #define ASM_SPEC64 "-a64"
 
 #define ASM_SPEC_COMMON "%(asm_cpu) \
-%{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
+%{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
 %{v:-V} %{Qy:} %{!Qn:-Qy} %{Wa,*:%*} \
 %{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}"
 
diff --git a/gcc/config/rs6000/lynx.h b/gcc/config/rs6000/lynx.h
index ab2d16f..0dbd747 100644
--- a/gcc/config/rs6000/lynx.h
+++ b/gcc/config/rs6000/lynx.h
@@ -54,8 +54,7 @@
 #undef ASM_SPEC
 #define ASM_SPEC \
 "%(asm_cpu) \
- %{.s: %{mregnames} %{mno-regnames}} \
- %{.S: %{mregnames} %{mno-regnames}}"
+ %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}}"
 
 #undef STARTFILE_SPEC
 #undef ENDFILE_SPEC
diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
index 0b1eb1e..1aad6af 100644
--- a/gcc/config/rs6000/sysv4.h
+++ b/gcc/config/rs6000/sysv4.h
@@ -578,7 +578,7 @@ extern int fixuplabelno;
 /* Override svr4.h definition.  */
 #undef	ASM_SPEC
 #define	ASM_SPEC "%(asm_cpu) \
-%{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
+%{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
 %{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
 %{memb|msdata|msdata=eabi: -memb} \
diff --git a/gcc/config/rs6000/vxworks.h b/gcc/config/rs6000/vxworks.h
index f15369c..2bd7872 100644
--- a/gcc/config/rs6000/vxworks.h
+++ b/gcc/config/rs6000/vxworks.h
@@ -84,7 +84,7 @@ VXWORKS_ADDITIONAL_CPP_SPEC
 
 #define ASM_SPEC \
 "%(asm_cpu) \
- %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
+ %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
  %{v:-v} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
  %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} -mbig"