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-rw-r--r--CMake/CurlCheckCSourceRuns.cmake83
1 files changed, 83 insertions, 0 deletions
diff --git a/CMake/CurlCheckCSourceRuns.cmake b/CMake/CurlCheckCSourceRuns.cmake
new file mode 100644
index 000000000..19681bd85
--- /dev/null
+++ b/CMake/CurlCheckCSourceRuns.cmake
@@ -0,0 +1,83 @@
+# - Check if the source code provided in the SOURCE argument compiles and runs.
+# CURL_CHECK_C_SOURCE_RUNS(SOURCE VAR)
+# - macro which checks if the source code runs
+# SOURCE - source code to try to compile
+# VAR - variable to store size if the type exists.
+#
+# 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_RUNS 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(${ARGC} GREATER 2)
+ SET(MACRO_CHECK_FUNCTION_DEFINITIONS
+ "-D${VAR} ${CMAKE_REQUIRED_FLAGS}")
+ IF(CMAKE_REQUIRED_LIBRARIES)
+ SET(CURL_CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES
+ "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}")
+ ELSE(CMAKE_REQUIRED_LIBRARIES)
+ SET(CURL_CHECK_C_SOURCE_COMPILES_ADD_LIBRARIES)
+ ENDIF(CMAKE_REQUIRED_LIBRARIES)
+ IF(CMAKE_REQUIRED_INCLUDES)
+ SET(CURL_CHECK_C_SOURCE_COMPILES_ADD_INCLUDES
+ "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
+ ELSE(CMAKE_REQUIRED_INCLUDES)
+ SET(CURL_CHECK_C_SOURCE_COMPILES_ADD_INCLUDES)
+ ENDIF(CMAKE_REQUIRED_INCLUDES)
+ 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 ${message}")
+ TRY_RUN(${VAR} ${VAR}_COMPILED
+ ${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 it did not compile make the return value fail code of 1
+ IF(NOT ${VAR}_COMPILED)
+ SET(${VAR} 1)
+ ENDIF(NOT ${VAR}_COMPILED)
+ # if the return value was 0 then it worked
+ SET(result_var ${${VAR}})
+ IF("${result_var}" EQUAL 0)
+ SET(${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"
+ "Return value: ${${VAR}}\n"
+ "Source file was:\n${src}\n")
+ ELSE("${result_var}" EQUAL 0)
+ 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"
+ "Return value: ${result_var}\n"
+ "Source file was:\n${src}\n")
+ ENDIF("${result_var}" EQUAL 0)
+ ENDIF("${VAR}" MATCHES "^${VAR}$" OR "${VAR}" MATCHES "UNKNOWN")
+ENDMACRO(CURL_CHECK_C_SOURCE_RUNS)