mirror of
https://github.com/moparisthebest/curl
synced 2024-11-16 14:35:03 -05:00
72 lines
2.9 KiB
CMake
72 lines
2.9 KiB
CMake
# - Check if the source code provided in the SOURCE argument compiles.
|
|
# CURL_CHECK_C_SOURCE_COMPILES(SOURCE VAR)
|
|
# - macro which checks if the source code compiles
|
|
# SOURCE - source code to try to compile
|
|
# VAR - variable to store whether the source code compiled
|
|
#
|
|
# The following variables may be set before calling this macro to
|
|
# modify the way the check is run:
|
|
#
|
|
# CMAKE_REQUIRED_FLAGS = string of compile command line flags
|
|
# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
|
|
# CMAKE_REQUIRED_INCLUDES = list of include directories
|
|
# CMAKE_REQUIRED_LIBRARIES = list of libraries to link
|
|
|
|
macro(CURL_CHECK_C_SOURCE_COMPILES SOURCE VAR)
|
|
if("${VAR}" MATCHES "^${VAR}$" OR "${VAR}" MATCHES "UNKNOWN")
|
|
set(message "${VAR}")
|
|
# If the number of arguments is greater than 2 (SOURCE VAR)
|
|
if(${ARGC} GREATER 2)
|
|
# then add the third argument as a message
|
|
set(message "${ARGV2} (${VAR})")
|
|
endif()
|
|
set(MACRO_CHECK_FUNCTION_DEFINITIONS
|
|
"-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
|
|
if(CMAKE_REQUIRED_LIBRARIES)
|
|
set(CURL_CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
|
|
"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
|
|
endif()
|
|
if(CMAKE_REQUIRED_INCLUDES)
|
|
set(CURL_CHECK_C_SOURCE_COMPILES_ADD_INCLUDES
|
|
"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
|
|
endif()
|
|
set(src "")
|
|
foreach(def ${EXTRA_DEFINES})
|
|
set(src "${src}#define ${def} 1\n")
|
|
endforeach(def)
|
|
foreach(inc ${HEADER_INCLUDES})
|
|
set(src "${src}#include <${inc}>\n")
|
|
endforeach(inc)
|
|
|
|
set(src "${src}\nint main() { ${SOURCE} ; return 0; }")
|
|
set(CMAKE_CONFIGURABLE_FILE_CONTENT "${src}")
|
|
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/CMake/CMakeConfigurableFile.in
|
|
"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c"
|
|
IMMEDIATE)
|
|
message(STATUS "Performing Test ${message}")
|
|
try_compile(${VAR}
|
|
${CMAKE_BINARY_DIR}
|
|
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c
|
|
COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
|
|
CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS}
|
|
"${CURL_CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES}"
|
|
"${CURL_CHECK_C_SOURCE_COMPILES_ADD_INCLUDES}"
|
|
OUTPUT_VARIABLE OUTPUT)
|
|
if(${VAR})
|
|
set(${VAR} 1 CACHE INTERNAL "Test ${message}")
|
|
message(STATUS "Performing Test ${message} - Success")
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
|
"Performing C SOURCE FILE Test ${message} succeded with the following output:\n"
|
|
"${OUTPUT}\n"
|
|
"Source file was:\n${src}\n")
|
|
else()
|
|
message(STATUS "Performing Test ${message} - Failed")
|
|
set(${VAR} "" CACHE INTERNAL "Test ${message}")
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
|
"Performing C SOURCE FILE Test ${message} failed with the following output:\n"
|
|
"${OUTPUT}\n"
|
|
"Source file was:\n${src}\n")
|
|
endif()
|
|
endif()
|
|
endmacro()
|