ASM_COMMENT_START and gas divide operator

[Alan Modra]

There is a problem with using "/" to start comments, such as those
emitted by gcc's -fverbose-asm.  If gas needs to support "/" meaning
the start of a comment anywhere on a line, then the gas division
operator is killed, sometimes silently.  For instance:
  asm("pushl $FOO/2")
is treated as if the programmer wrote
  asm("pushl $FOO")

Of course, this is only a problem with hand-coded assembly, but it
would be nice to fix gas and gcc.  At least on linux, where the only
assembler used with gcc is gas, we should be able to make the
following change without causing too many problems.

	* config/linux.h (ASM_COMMENT_START): Define as "#"
	* config/linux-aout.h (ASM_COMMENT_START): Likewise

--- gcc/config/linux.h~	Sun Apr  5 03:08:45 1998
+++ gcc/config/linux.h	Fri May  1 10:54:14 1998
@@ -34,6 +34,9 @@
 #define MULTIBYTE_CHARS 1
 #endif
 
+#undef ASM_COMMENT_START
+#define ASM_COMMENT_START "#"
+
 #undef ASM_APP_ON
 #define ASM_APP_ON "#APP\n"
 
--- gcc/config/linux-aout.h~	Sun Dec  7 03:54:04 1997
+++ gcc/config/linux-aout.h	Fri May  1 10:54:14 1998
@@ -36,6 +36,9 @@
 #undef STARTFILE_SPEC
 #define STARTFILE_SPEC  "%{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}} %{static:-static}"
 
+#undef ASM_COMMENT_START
+#define ASM_COMMENT_START "#"
+
 #undef ASM_APP_ON
 #define ASM_APP_ON "#APP\n"