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Author SHA1 Message Date
Stephen Kelly
b15c008fac Features: Record for GNU 4.6. 
Adjust the CompileFeatures genex_test for the expectation of the
OVERRIDE_CONTROL feature group.
 2015-01-16 00:11:01 +01:00
Stephen Kelly
222ec86f7d Features: Test an old value of __STDC_VERSION__ for GNU < 4.7 compatibility. 2015-01-15 22:13:22 +01:00
Stephen Kelly
d0af0faefb WCDH: Make the header -Wundef safe for the C language. 
The __STDC_VERSION__ macro may be defined or not depending on the
implementation dialect of C.  Test that it is defined before testing
its value.

The CXX tests do not need such a change because they define __cplusplus
in all dialects.
 2014-11-25 14:44:21 +01:00
Stephen Kelly
e0890d03a4 Features: Extend concept to C language. 
Add properties and variables corresponding to CXX equivalents.

Add features for c_function_prototypes (C90), c_restrict (C99),
c_variadic_macros (C99) and c_static_assert (C11). This feature
set can be extended later.

Add a <PREFIX>_RESTRICT symbol define to WriteCompilerDetectionHeader
to conditionally represent the c_restrict feature.
 2014-05-15 00:15:18 +02:00