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authorRobert Maynard <robert.maynard@kitware.com>2016-04-15 17:40:30 (GMT)
committerBrad King <brad.king@kitware.com>2016-04-28 13:16:35 (GMT)
commit36f32ede8d1a2aa1578a726f687a24dec4cc3f33 (patch)
tree8258a383b95b406a7a5dd0ab3f8c760c355d33ff /Modules/Compiler/Intel-C-FeatureTests.cmake
parentd028b948721d7a6042b87e238542a11fea78edb0 (diff)
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Features: Record standards and features for Intel C on UNIX
Record features for Intel C 12.1 and above. Skip this for now on Windows (where Intel C simulates MSVC).
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+# References:
+# - https://software.intel.com/en-us/articles/iso-iec-standards-language-conformance-for-intel-c-compiler
+# - https://software.intel.com/en-us/articles/c99-support-in-intel-c-compiler
+# - https://software.intel.com/en-us/articles/c11-support-in-intel-c-compiler
+
+# FIXME: Intel C feature detection works only when simulating the GNU compiler.
+if("x${CMAKE_C_SIMULATE_ID}" STREQUAL "xMSVC")
+ return()
+endif()
+
+set(DETECT_C99 "defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L")
+
+#static assert is only around in version 1500 update 2 and above
+set(_cmake_feature_test_c_static_assert "(__INTEL_COMPILER > 1500 || (__INTEL_COMPILER == 1500 && __INTEL_COMPILER_UPDATE > 1) ) && ${DETECT_C99}")
+
+set(_cmake_oldestSupported "__INTEL_COMPILER >= 1110")
+set(Intel_C99 "${_cmake_oldestSupported} && ${DETECT_C99}")
+set(_cmake_feature_test_c_restrict "${Intel_C99}")
+set(_cmake_feature_test_c_variadic_macros "${Intel_C99}")
+set(_cmake_feature_test_c_function_prototypes "${_cmake_oldestSupported}")
+unset(Intel_C99)
+
+unset(DETECT_C99)