Commit Graph

18 Commits

Author SHA1 Message Date
Brad King 5fdf759478 Tests: Suppress WriteCompilerDetectionHeader failure on SunPro
We do support SunPro 5.13 compiler features, but only on Linux.
Suppress the portion of the test that fails on Solaris until
the larger problem can be addressed.
2015-09-30 09:53:52 -04:00
Stephen Kelly fb3487a997 Features: Fix C90 feature detection.
This bug caused c_function_prototypes to not be recorded at configure
time when compiling with -std=gnu99 or similar. In the case of feature
recording, that was not a problem, because the logic in
CMakeDetermineCompileFeatures.cmake currently assumes that a feature
present for an earlier standard is present for a later standard.

However, the detection strings are also used in WriteCompilerDetectionHeader,
so the feature macro has been defined to '0' when using a later language
dialect.

Fix that by not checking the existence of the __STDC_VERSION__ macro at
all when detecting C90 features.
2015-02-04 18:38:21 -05:00
Robert Maynard d3489bdb0b Features: Record for MSVC 2010-2015
Also, in WCDH add MSVC Compatibility for cxx_align{of,as}.

Co-Author: Stephen Kelly <steveire@gmail.com>
Co-Author: Brad King <brad.king@kitware.com>
2015-01-30 09:57:33 -05:00
Stephen Kelly 8dc0c97666 WCDH: Fix the C_STANDARD property in the tests.
The CXX_STANDARD property validates the values allowed for it,
and '90' is not a valid value for it.  However, the validation is only
done for languages enabled for the target, and as C_undefined has no
CXX files, that language is not enabled for it.

This amends commit v3.1.0-rc3~23^2 (WCDH: Make the header -Wundef
safe for the C language., 2014-11-24).
2015-01-19 19:57:54 +01:00
Brad King 813ace90e4 Merge topic 'GNU-4.4-compile-features'
004e1540 Features: Record for GNU 4.4.
2a5ca650 Features: Wrap failure-test in UNIX condition.
1ae2c6b2 Features: Blacklist cxx_constexpr test for GNU 4.5.
c66e3317 Features: Use a more-common feature in cycle-test.
c43a6dc5 Features: Update comment in test to match the code.
78259135 Features: Test presence of cxx_auto_type with genex.
7b9fc88b Features: Remove outdated comment.
2015-01-19 13:55:31 -05:00
Stephen Kelly 2a5ca650c9 Features: Wrap failure-test in UNIX condition.
The use of GNU on non-UNIX for 'compile features' is not
tested and is not well defined.
2015-01-18 15:01:14 +01:00
Stephen Kelly bcb04783f7 Features: Record for SolarisStudio 12.4.
It has similar C++11 capabilities compared to GCC 4.8.
2015-01-17 14:48:28 +01:00
Brad King 0b7e7e277c Revert topic 'feature_record_msvc'
Revert commits:

 2d738ce3 Help: Add notes for topic 'feature_record_msvc'
 f73718c9 Features: Enable writing of MSVC compiler feature header.
 64c30bdc Features: Record for MSVC C++ 2015 and MSVC C 2010-2015.
 225c0ef8 Features: Record for MSVC 2010-2013.

This topic was merged to master prematurely, so remove it.
2015-01-14 13:35:58 -05:00
Robert Maynard f73718c9b8 Features: Enable writing of MSVC compiler feature header.
Notes:
VS2015 and above are the only MSVC versions to support cxx_final, so remove
usages from the tests, and instead only test for cxx_override.

VS2012 and above to conform to cxx_decltype_incomplete_return_types
proposal, but without support for auto return types the dcl.type.simple
example in the proposal doesn't compile.

VS2013 and above to conform to the updated cxx_contextual_conversions proposal,
but VS2010 and above pass the test.

Compilers such as MSVC have no explicit flags to enable C++11 mode,
it just is always on. So only run the link tests with compilers that require
a flag to specify the language version.
2015-01-11 11:32:36 -05:00
Robert Maynard a15675efc3 Features: Quote all compiler names when comparing with COMPILER_ID
In preparation of adding MSVC support we need to quote all compiler names,
as MSVC is also a CMake variable.
2015-01-11 16:47:58 +01:00
Stephen Kelly bd6b42c186 Features: Record for AppleClang 5.1
Apple's Clang 5.1 already supports most of the C and C++ features CMake
enumerates.
2014-12-22 10:44:41 -05:00
Brad King 6b93953615 Merge topic 'WCDH-multi-file'
4cf5179c WCDH: Make it possible to generate multiple files.
2014-11-26 10:37:49 -05:00
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 4cf5179c77 WCDH: Make it possible to generate multiple files.
Extend the write_compiler_detection_header interface to allow
specifying a location for supplementary files, and getting the
list of resulting files as a variable.
2014-11-24 21:54:41 +01:00
Stephen Kelly ddec418a8f Features: Add compiler version support to WriteCompilerDetectionHeader. 2014-06-09 23:42:20 +02:00
Stephen Kelly cda233194f Features: Record for Clang 3.4
Clang 3.4 supports all features currently known to CMake.
2014-05-20 16:03:48 +02:00
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
Stephen Kelly 62a4a67dc5 Add the WriteCompilerDetectionHeader module.
Provide a function to write a portable header to detect compiler
features.  Generate a preprocessor #error for unknown compilers
and compiler versions whose features are not yet recorded.  This
error condition might be relaxed in the future, but for now it
is useful for verification of expectations.
2014-05-14 13:57:30 -04:00