41 строка
1.3 KiB
CMake
41 строка
1.3 KiB
CMake
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#
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# Copyright (c) 2007-2008 High Performance Computing Center Stuttgart,
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# University of Stuttgart. All rights reserved.
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# $COPYRIGHT$
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#
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# Additional copyrights may follow
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#
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# $HEADER$
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#
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MACRO(C_GET_ALIGNMENT TYPE LANG NAME)
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IF(NOT ${NAME}_ALIGNMENT)
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#
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# Try to compile and run a foo grogram.
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# The alignment result will be stored in ${CHECK_TYPE}_ALIGNMENT
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#
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MESSAGE( STATUS "Check alignment of ${TYPE} in ${LANG}...")
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FILE (WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/c_get_${NAME}_alignment.${LANG}"
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"#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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int main(){
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char diff;
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struct foo {char a; ${TYPE} b;};
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struct foo *p = (struct foo *) malloc(sizeof(struct foo));
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diff = ((char *)&p->b) - ((char *)&p->a);
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return diff;}
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")
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TRY_RUN(${NAME}_ALIGNMENT COMPILE_RESULT "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/c_get_${NAME}_alignment.${LANG}")
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MESSAGE( STATUS "Check alignment of ${TYPE} in ${LANG}...${${NAME}_ALIGNMENT}")
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ENDIF(NOT ${NAME}_ALIGNMENT)
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ENDMACRO(C_GET_ALIGNMENT TYPE TYPE_ALIGNMENT LANG )
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