79 lines
1.9 KiB
CMake
79 lines
1.9 KiB
CMake
##
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## Author: Hank Anderson <hank@statease.com>
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## Description: Ported from the OpenBLAS/c_check perl script.
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## This is triggered by prebuild.cmake and runs before any of the code is built.
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## Creates config.h and Makefile.conf.
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# CMake vars set by this file:
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# OSNAME (use CMAKE_SYSTEM_NAME)
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# ARCH
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# C_COMPILER (use CMAKE_C_COMPILER)
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# BINARY32
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# BINARY64
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# FU
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# CROSS_SUFFIX
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# CROSS
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# CEXTRALIB
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# Defines set by this file:
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# OS_
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# ARCH_
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# C_
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# __32BIT__
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# __64BIT__
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# FUNDERSCORE
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# PTHREAD_CREATE_FUNC
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# N.B. c_check (and ctest.c) is not cross-platform, so instead try to use CMake variables.
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# TODO: detect NEED_FU
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set(NEED_FU 1)
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# Convert CMake vars into the format that OpenBLAS expects
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string(TOUPPER ${CMAKE_SYSTEM_NAME} HOST_OS)
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if (${HOST_OS} STREQUAL "WINDOWS")
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set(HOST_OS WINNT)
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endif ()
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# added by hpa - check size of void ptr to detect 64-bit compile
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if (NOT DEFINED BINARY)
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set(BINARY 32)
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if (CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(BINARY 64)
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endif ()
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endif ()
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if (BINARY EQUAL 64)
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set(BINARY64 1)
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else ()
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set(BINARY32 1)
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endif ()
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# CMake docs define these:
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# CMAKE_SYSTEM_PROCESSOR - The name of the CPU CMake is building for.
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# CMAKE_HOST_SYSTEM_PROCESSOR - The name of the CPU CMake is running on.
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#
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# TODO: CMAKE_SYSTEM_PROCESSOR doesn't seem to be correct - instead get it from the compiler a la c_check
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set(ARCH ${CMAKE_SYSTEM_PROCESSOR})
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if (${ARCH} STREQUAL "AMD64")
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set(ARCH "X86_64")
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endif ()
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# If you are using a 32-bit compiler on a 64-bit system CMAKE_SYSTEM_PROCESSOR will be wrong
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if (${ARCH} STREQUAL "X86_64" AND BINARY EQUAL 32)
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set(ARCH X86)
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endif ()
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set(COMPILER_ID ${CMAKE_CXX_COMPILER_ID})
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if (${COMPILER_ID} STREQUAL "GNU")
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set(COMPILER_ID "GCC")
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endif ()
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file(WRITE ${TARGET_CONF}
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"#define OS_${HOST_OS}\t1\n"
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"#define ARCH_${ARCH}\t1\n"
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"#define C_${COMPILER_ID}\t1\n"
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"#define __${BINARY}BIT__\t1\n"
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"#define FUNDERSCORE\t${NEED_FU}\n")
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