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Bug#42733: Type-punning warnings when compiling MySQL --

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strict aliasing violations.

Post-merge fix: include my_compiler.h before my_attribute.h
as the latter will undef __attribute__ if the compiler is not
GCC. Based on the compiler version, in my_compiler.h we know
for sure whether the aligned attribute is supported. Furthermore,
undefining attribute might cause bugs if some system header
uses it.

include/my_compiler.h:
  Drop aligned attribute support from Sun Studio C++ compiler
  as its not clear exactly which version of it supports the
  attribute.
This commit is contained in:
Davi Arnaut
2010-07-14 16:39:40 -03:00
parent f317d3a6fb
commit d7944b621e
3 changed files with 4 additions and 4 deletions
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4
include/my_compiler.h
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@@ -42,7 +42,7 @@
/* Oracle Solaris Studio */
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
# if (__SUNPRO_C >= 0x590) || (__SUNPRO_CC >= 0x590)
# if __SUNPRO_C >= 0x590
# define MY_ALIGN_EXT
# endif
@@ -124,4 +124,6 @@ struct my_aligned_storage
#endif /* __cplusplus */
#include <my_attribute.h>
#endif /* MY_COMPILER_INCLUDED */