Commit 7ed82326 authored Apr 04, 2014 by Bob Moore Committed by Rafael J. Wysocki Apr 20, 2014

ACPICA: gcc-specific: Fix possible issue with the strchr function.



Some versions of gcc implement strchr via a macro, which either
contains bugs or can provoke a bug in the compiler. This change
fixes a possible compile-time error when using this function.
The problem is usually seen when compiling the getopt.c module.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent 6085bb18

include/acpi/platform/acgcc.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -64,4 +64,15 @@
		*/
		#define ACPI_UNUSED_VAR __attribute__ ((unused))

		/*
		* Some versions of gcc implement strchr() with a buggy macro. So,
		* undef it here. Prevents error messages of this form (usually from the
		* file getopt.c):
		*
		* error: logical '&&' with non-zero constant will always evaluate as true
		*/
		#ifdef strchr
		#undef strchr
		#endif

		#endif /* __ACGCC_H__ */