Commit 5a08e1b6 authored by Andy Cedilnik's avatar Andy Cedilnik

Add macro which checks if the header file exists

parent fdcd1973
#ifdef CHECK_INCLUDE_FILE
#include <${CHECK_INCLUDE_FILE_VAR}>
int main()
{
return 0;
}
#else /* CHECK_INCLUDE_FILE */
# error "CHECK_INCLUDE_FILE has to specify the include file"
#endif /* CHECK_INCLUDE_FILE */
#
# Check if the include file exists.
#
# CHECK_INCLUDE_FILE - macro which checks the include file exists.
# INCLUDE - name of include file
# VARIABLE - variable to return result
#
MACRO(CHECK_INCLUDE_FILE INCLUDE VARIABLE)
SET(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
CONFIGURE_FILE(${CMAKE_ROOT}/Modules/CheckIncludeFile.c.in
${PROJECT_BINARY_DIR}/CheckIncludeFile.c IMMEDIATE)
TRY_COMPILE(COMPILE_OK
${PROJECT_BINARY_DIR}
${PROJECT_BINARY_DIR}/CheckIncludeFile.c
COMPILE_DEFINITIONS -DCHECK_INCLUDE_FILE="${INCLUDE}"
OUTPUT_VARIABLE OUTPUT)
IF(COMPILE_OK)
SET(${VARIABLE} ${COMPILE_OK})
ELSE(COMPILE_OK)
WRITE_FILE(${PROJECT_BINARY_DIR}/CMakeError.log
"Determining if the include file ${INCLUDE} "
"exists failed with the following output:\n"
"${OUTPUT}\n")
ENDIF(COMPILE_OK)
ENDMACRO(CHECK_INCLUDE_FILE)
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