CMake/Modules/CMakeCXXCompilerId.cpp.in
Brad King 3e04946f7b Require CMAKE_<LANG>_COMPILER to be found as a full path
All generators now support detection of the full path to the compiler, so
require it to be so.  This will allow CMake<LANG>Information.cmake and
other logic to assume the full path to the compiler tool is available.

The Makefile generators already rejected CMAKE_<LANG>_COMPILER values
that did not name an existing compiler.  Extend this error message to
all generators, make it occur as early as possible, and improve the
message with advice about how to set the compiler.  If the full path to
the compiler is not known, finish enabling languages with a fatal error
so configuration does not continue.

For now, allow the RC language compiler to not be a full path.  Later we
will need to detect the full path to "rc" under the VS IDE.

Add a RunCMake.CompilerNotFound test to cover failure cases.
Fix the RunCMake.CompilerChange test EmptyCompiler case to work
when configuration does not continue past enable_language.
2013-10-28 08:36:14 -04:00

245 lines
8.1 KiB
C++

/* This source file must have a .cpp extension so that all C++ compilers
recognize the extension without flags. Borland does not know .cxx for
example. */
#ifndef __cplusplus
# error "A C compiler has been selected for C++."
#endif
/* Version number components: V=Version, R=Revision, P=Patch
Version date components: YYYY=Year, MM=Month, DD=Day */
#if defined(__COMO__)
# define COMPILER_ID "Comeau"
/* __COMO_VERSION__ = VRR */
# define COMPILER_VERSION_MAJOR DEC(__COMO_VERSION__ / 100)
# define COMPILER_VERSION_MINOR DEC(__COMO_VERSION__ % 100)
#elif defined(__INTEL_COMPILER) || defined(__ICC)
# define COMPILER_ID "Intel"
/* __INTEL_COMPILER = VRP */
# define COMPILER_VERSION_MAJOR DEC(__INTEL_COMPILER/100)
# define COMPILER_VERSION_MINOR DEC(__INTEL_COMPILER/10 % 10)
# define COMPILER_VERSION_PATCH DEC(__INTEL_COMPILER % 10)
# if defined(__INTEL_COMPILER_BUILD_DATE)
/* __INTEL_COMPILER_BUILD_DATE = YYYYMMDD */
# define COMPILER_VERSION_TWEAK DEC(__INTEL_COMPILER_BUILD_DATE)
# endif
# if defined(_MSC_VER)
# define SIMULATE_ID "MSVC"
/* _MSC_VER = VVRR */
# define SIMULATE_VERSION_MAJOR DEC(_MSC_VER / 100)
# define SIMULATE_VERSION_MINOR DEC(_MSC_VER % 100)
# endif
#elif defined(__PATHCC__)
# define COMPILER_ID "PathScale"
# define COMPILER_VERSION_MAJOR DEC(__PATHCC__)
# define COMPILER_VERSION_MINOR DEC(__PATHCC_MINOR__)
# if defined(__PATHCC_PATCHLEVEL__)
# define COMPILER_VERSION_PATCH DEC(__PATHCC_PATCHLEVEL__)
# endif
#elif defined(__clang__)
# if defined(__apple_build_version__)
# define COMPILER_ID "AppleClang"
# define COMPILER_VERSION_TWEAK DEC(__apple_build_version__)
# else
# define COMPILER_ID "Clang"
# endif
# define COMPILER_VERSION_MAJOR DEC(__clang_major__)
# define COMPILER_VERSION_MINOR DEC(__clang_minor__)
# define COMPILER_VERSION_PATCH DEC(__clang_patchlevel__)
# if defined(_MSC_VER)
# define SIMULATE_ID "MSVC"
/* _MSC_VER = VVRR */
# define SIMULATE_VERSION_MAJOR DEC(_MSC_VER / 100)
# define SIMULATE_VERSION_MINOR DEC(_MSC_VER % 100)
# endif
#elif defined(__BORLANDC__) && defined(__CODEGEARC_VERSION__)
# define COMPILER_ID "Embarcadero"
# define COMPILER_VERSION_MAJOR HEX(__CODEGEARC_VERSION__>>24 & 0x00FF)
# define COMPILER_VERSION_MINOR HEX(__CODEGEARC_VERSION__>>16 & 0x00FF)
# define COMPILER_VERSION_PATCH HEX(__CODEGEARC_VERSION__ & 0xFFFF)
#elif defined(__BORLANDC__)
# define COMPILER_ID "Borland"
/* __BORLANDC__ = 0xVRR */
# define COMPILER_VERSION_MAJOR HEX(__BORLANDC__>>8)
# define COMPILER_VERSION_MINOR HEX(__BORLANDC__ & 0xFF)
#elif defined(__WATCOMC__)
# define COMPILER_ID "Watcom"
/* __WATCOMC__ = VVRR */
# define COMPILER_VERSION_MAJOR DEC(__WATCOMC__ / 100)
# define COMPILER_VERSION_MINOR DEC(__WATCOMC__ % 100)
#elif defined(__SUNPRO_CC)
# define COMPILER_ID "SunPro"
# if __SUNPRO_CC >= 0x5100
/* __SUNPRO_CC = 0xVRRP */
# define COMPILER_VERSION_MAJOR HEX(__SUNPRO_CC>>12)
# define COMPILER_VERSION_MINOR HEX(__SUNPRO_CC>>4 & 0xFF)
# define COMPILER_VERSION_PATCH HEX(__SUNPRO_CC & 0xF)
# else
/* __SUNPRO_CC = 0xVRP */
# define COMPILER_VERSION_MAJOR HEX(__SUNPRO_CC>>8)
# define COMPILER_VERSION_MINOR HEX(__SUNPRO_CC>>4 & 0xF)
# define COMPILER_VERSION_PATCH HEX(__SUNPRO_CC & 0xF)
# endif
#elif defined(__HP_aCC)
# define COMPILER_ID "HP"
/* __HP_aCC = VVRRPP */
# define COMPILER_VERSION_MAJOR DEC(__HP_aCC/10000)
# define COMPILER_VERSION_MINOR DEC(__HP_aCC/100 % 100)
# define COMPILER_VERSION_PATCH DEC(__HP_aCC % 100)
#elif defined(__DECCXX)
# define COMPILER_ID "Compaq"
/* __DECCXX_VER = VVRRTPPPP */
# define COMPILER_VERSION_MAJOR DEC(__DECCXX_VER/10000000)
# define COMPILER_VERSION_MINOR DEC(__DECCXX_VER/100000 % 100)
# define COMPILER_VERSION_PATCH DEC(__DECCXX_VER % 10000)
#elif defined(__IBMCPP__)
# if defined(__COMPILER_VER__)
# define COMPILER_ID "zOS"
# else
# if __IBMCPP__ >= 800
# define COMPILER_ID "XL"
# else
# define COMPILER_ID "VisualAge"
# endif
/* __IBMCPP__ = VRP */
# define COMPILER_VERSION_MAJOR DEC(__IBMCPP__/100)
# define COMPILER_VERSION_MINOR DEC(__IBMCPP__/10 % 10)
# define COMPILER_VERSION_PATCH DEC(__IBMCPP__ % 10)
# endif
#elif defined(__PGI)
# define COMPILER_ID "PGI"
# define COMPILER_VERSION_MAJOR DEC(__PGIC__)
# define COMPILER_VERSION_MINOR DEC(__PGIC_MINOR__)
# if defined(__PGIC_PATCHLEVEL__)
# define COMPILER_VERSION_PATCH DEC(__PGIC_PATCHLEVEL__)
# endif
#elif defined(_CRAYC)
# define COMPILER_ID "Cray"
# define COMPILER_VERSION_MAJOR DEC(_RELEASE)
# define COMPILER_VERSION_MINOR DEC(_RELEASE_MINOR)
#elif defined(__TI_COMPILER_VERSION__)
# define COMPILER_ID "TI"
/* __TI_COMPILER_VERSION__ = VVVRRRPPP */
# define COMPILER_VERSION_MAJOR DEC(__TI_COMPILER_VERSION__/1000000)
# define COMPILER_VERSION_MINOR DEC(__TI_COMPILER_VERSION__/1000 % 1000)
# define COMPILER_VERSION_PATCH DEC(__TI_COMPILER_VERSION__ % 1000)
#elif defined(__SCO_VERSION__)
# define COMPILER_ID "SCO"
#elif defined(__GNUC__)
# define COMPILER_ID "GNU"
# define COMPILER_VERSION_MAJOR DEC(__GNUC__)
# define COMPILER_VERSION_MINOR DEC(__GNUC_MINOR__)
# if defined(__GNUC_PATCHLEVEL__)
# define COMPILER_VERSION_PATCH DEC(__GNUC_PATCHLEVEL__)
# endif
#elif defined(_MSC_VER)
# define COMPILER_ID "MSVC"
/* _MSC_VER = VVRR */
# define COMPILER_VERSION_MAJOR DEC(_MSC_VER / 100)
# define COMPILER_VERSION_MINOR DEC(_MSC_VER % 100)
# if defined(_MSC_FULL_VER)
# if _MSC_VER >= 1400
/* _MSC_FULL_VER = VVRRPPPPP */
# define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 100000)
# else
/* _MSC_FULL_VER = VVRRPPPP */
# define COMPILER_VERSION_PATCH DEC(_MSC_FULL_VER % 10000)
# endif
# endif
# if defined(_MSC_BUILD)
# define COMPILER_VERSION_TWEAK DEC(_MSC_BUILD)
# endif
/* Analog VisualDSP++ >= 4.5.6 */
#elif defined(__VISUALDSPVERSION__)
# define COMPILER_ID "ADSP"
/* __VISUALDSPVERSION__ = 0xVVRRPP00 */
# define COMPILER_VERSION_MAJOR HEX(__VISUALDSPVERSION__>>24)
# define COMPILER_VERSION_MINOR HEX(__VISUALDSPVERSION__>>16 & 0xFF)
# define COMPILER_VERSION_PATCH HEX(__VISUALDSPVERSION__>>8 & 0xFF)
/* Analog VisualDSP++ < 4.5.6 */
#elif defined(__ADSPBLACKFIN__) || defined(__ADSPTS__) || defined(__ADSP21000__)
# define COMPILER_ID "ADSP"
/* IAR Systems compiler for embedded systems.
http://www.iar.com */
#elif defined(__IAR_SYSTEMS_ICC__ ) || defined(__IAR_SYSTEMS_ICC)
# define COMPILER_ID "IAR"
#elif defined(_SGI_COMPILER_VERSION) || defined(_COMPILER_VERSION)
# define COMPILER_ID "MIPSpro"
# if defined(_SGI_COMPILER_VERSION)
/* _SGI_COMPILER_VERSION = VRP */
# define COMPILER_VERSION_MAJOR DEC(_SGI_COMPILER_VERSION/100)
# define COMPILER_VERSION_MINOR DEC(_SGI_COMPILER_VERSION/10 % 10)
# define COMPILER_VERSION_PATCH DEC(_SGI_COMPILER_VERSION % 10)
# else
/* _COMPILER_VERSION = VRP */
# define COMPILER_VERSION_MAJOR DEC(_COMPILER_VERSION/100)
# define COMPILER_VERSION_MINOR DEC(_COMPILER_VERSION/10 % 10)
# define COMPILER_VERSION_PATCH DEC(_COMPILER_VERSION % 10)
# endif
/* This compiler is either not known or is too old to define an
identification macro. Try to identify the platform and guess that
it is the native compiler. */
#elif defined(__sgi)
# define COMPILER_ID "MIPSpro"
#elif defined(__hpux) || defined(__hpua)
# define COMPILER_ID "HP"
#else /* unknown compiler */
# define COMPILER_ID ""
#endif
/* Construct the string literal in pieces to prevent the source from
getting matched. Store it in a pointer rather than an array
because some compilers will just produce instructions to fill the
array rather than assigning a pointer to a static array. */
char const* info_compiler = "INFO" ":" "compiler[" COMPILER_ID "]";
#ifdef SIMULATE_ID
char const* info_simulate = "INFO" ":" "simulate[" SIMULATE_ID "]";
#endif
@CMAKE_CXX_COMPILER_ID_PLATFORM_CONTENT@
@CMAKE_CXX_COMPILER_ID_ERROR_FOR_TEST@
/*--------------------------------------------------------------------------*/
int main(int argc, char* argv[])
{
int require = 0;
require += info_compiler[argc];
require += info_platform[argc];
#ifdef COMPILER_VERSION_MAJOR
require += info_version[argc];
#endif
#ifdef SIMULATE_ID
require += info_simulate[argc];
#endif
#ifdef SIMULATE_VERSION_MAJOR
require += info_simulate_version[argc];
#endif
(void)argv;
return require;
}