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Author SHA1 Message Date
Douglas Gregor 1a347f76c2 Reinstate r173952, this time limiting it to exactly the form 
#define X X

for which there is no point warning, ever.

llvm-svn: 173991
 2013-01-30 23:10:17 +00:00
Argyrios Kyrtzidis a94bd438f8 Revert "[preprocessor] Don't warn about "disabled expansion of recursive macro"" 
This reverts commit r173952

llvm-svn: 173970
 2013-01-30 20:42:17 +00:00
Argyrios Kyrtzidis 8c8684bbe1 [preprocessor] Don't warn about "disabled expansion of recursive macro" 
for "#define X X".

This is a pattern that, for example, stdbool.h uses.
rdar://12435773

llvm-svn: 173952
 2013-01-30 18:55:52 +00:00
Douglas Gregor 1f7d02fb6d Define _Bool, bool, true, and false macros in <stdbool.h> when we're 
in a GNU-compatible C++ dialect. Fixes <rdar://problem/8477819>.

llvm-svn: 115028
 2010-09-29 04:57:11 +00:00