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re PR other/54324 (GCC install document does not list minimum required g++ version)

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PR other/54324
	* ansidecl.h (ATTRIBUTE_UNUSED): Do not set __attribute__ for GCC
	< 3.4.

From-SVN: r194583
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Aldy Hernandez 2012-12-18 15:19:43 +00:00 • committed by Aldy Hernandez
parent 867fdd05e4
commit 9654e9c299
2 changed files with 14 additions and 1 deletions
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6
include/ChangeLog
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@ -1,3 +1,9 @@
2012-12-18 Aldy Hernandez <aldyh@redhat.com>
PR other/54324
* ansidecl.h (ATTRIBUTE_UNUSED): Do not set __attribute__ for GCC
< 3.4.
2012-11-09 Jason Merrill <jason@redhat.com>
* demangle.h (enum demangle_component_type): Add

9
include/ansidecl.h
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@ -279,8 +279,15 @@ So instead we use the macro below and test it against specific values. */
# endif
#endif
/* Similarly to ARG_UNUSED below. Prior to GCC 3.4, the C++ frontend
couldn't parse attributes placed after the identifier name, and now
the entire compiler is built with C++. */
#ifndef ATTRIBUTE_UNUSED
#define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#if GCC_VERSION >= 3004
# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#else
#define ATTRIBUTE_UNUSED
#endif
#endif /* ATTRIBUTE_UNUSED */
/* Before GCC 3.4, the C++ frontend couldn't parse attributes placed after the