214 lines
8.0 KiB
CMake
214 lines
8.0 KiB
CMake
|
|
#=============================================================================
|
|
# Copyright 2004-2011 Kitware, Inc.
|
|
#
|
|
# Distributed under the OSI-approved BSD License (the "License");
|
|
# see accompanying file Copyright.txt for details.
|
|
#
|
|
# This software is distributed WITHOUT ANY WARRANTY; without even the
|
|
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
# See the License for more information.
|
|
#=============================================================================
|
|
# (To distribute this file outside of CMake, substitute the full
|
|
# License text for the above reference.)
|
|
|
|
# This file sets the basic flags for the C language in CMake.
|
|
# It also loads the available platform file for the system-compiler
|
|
# if it exists.
|
|
# It also loads a system - compiler - processor (or target hardware)
|
|
# specific file, which is mainly useful for crosscompiling and embedded systems.
|
|
|
|
# some compilers use different extensions (e.g. sdcc uses .rel)
|
|
# so set the extension here first so it can be overridden by the compiler specific file
|
|
IF(UNIX)
|
|
SET(CMAKE_C_OUTPUT_EXTENSION .o)
|
|
ELSE(UNIX)
|
|
SET(CMAKE_C_OUTPUT_EXTENSION .obj)
|
|
ENDIF(UNIX)
|
|
|
|
SET(_INCLUDED_FILE 0)
|
|
|
|
# Load compiler-specific information.
|
|
IF(CMAKE_C_COMPILER_ID)
|
|
INCLUDE(Compiler/${CMAKE_C_COMPILER_ID}-C OPTIONAL)
|
|
ENDIF(CMAKE_C_COMPILER_ID)
|
|
|
|
SET(CMAKE_BASE_NAME)
|
|
GET_FILENAME_COMPONENT(CMAKE_BASE_NAME ${CMAKE_C_COMPILER} NAME_WE)
|
|
IF(CMAKE_COMPILER_IS_GNUCC)
|
|
SET(CMAKE_BASE_NAME gcc)
|
|
ENDIF(CMAKE_COMPILER_IS_GNUCC)
|
|
|
|
|
|
# load a hardware specific file, mostly useful for embedded compilers
|
|
IF(CMAKE_SYSTEM_PROCESSOR)
|
|
IF(CMAKE_C_COMPILER_ID)
|
|
INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_C_COMPILER_ID}-C-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL RESULT_VARIABLE _INCLUDED_FILE)
|
|
ENDIF(CMAKE_C_COMPILER_ID)
|
|
IF (NOT _INCLUDED_FILE)
|
|
INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME}-${CMAKE_SYSTEM_PROCESSOR} OPTIONAL)
|
|
ENDIF (NOT _INCLUDED_FILE)
|
|
ENDIF(CMAKE_SYSTEM_PROCESSOR)
|
|
|
|
|
|
# load the system- and compiler specific files
|
|
IF(CMAKE_C_COMPILER_ID)
|
|
INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_C_COMPILER_ID}-C
|
|
OPTIONAL RESULT_VARIABLE _INCLUDED_FILE)
|
|
ENDIF(CMAKE_C_COMPILER_ID)
|
|
IF (NOT _INCLUDED_FILE)
|
|
INCLUDE(Platform/${CMAKE_SYSTEM_NAME}-${CMAKE_BASE_NAME}
|
|
OPTIONAL RESULT_VARIABLE _INCLUDED_FILE)
|
|
ENDIF (NOT _INCLUDED_FILE)
|
|
# We specify the compiler information in the system file for some
|
|
# platforms, but this language may not have been enabled when the file
|
|
# was first included. Include it again to get the language info.
|
|
# Remove this when all compiler info is removed from system files.
|
|
IF (NOT _INCLUDED_FILE)
|
|
INCLUDE(Platform/${CMAKE_SYSTEM_NAME} OPTIONAL)
|
|
ENDIF (NOT _INCLUDED_FILE)
|
|
|
|
|
|
# This should be included before the _INIT variables are
|
|
# used to initialize the cache. Since the rule variables
|
|
# have if blocks on them, users can still define them here.
|
|
# But, it should still be after the platform file so changes can
|
|
# be made to those values.
|
|
|
|
IF(CMAKE_USER_MAKE_RULES_OVERRIDE)
|
|
# Save the full path of the file so try_compile can use it.
|
|
INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE} RESULT_VARIABLE _override)
|
|
SET(CMAKE_USER_MAKE_RULES_OVERRIDE "${_override}")
|
|
ENDIF()
|
|
|
|
IF(CMAKE_USER_MAKE_RULES_OVERRIDE_C)
|
|
# Save the full path of the file so try_compile can use it.
|
|
INCLUDE(${CMAKE_USER_MAKE_RULES_OVERRIDE_C} RESULT_VARIABLE _override)
|
|
SET(CMAKE_USER_MAKE_RULES_OVERRIDE_C "${_override}")
|
|
ENDIF()
|
|
|
|
|
|
# for most systems a module is the same as a shared library
|
|
# so unless the variable CMAKE_MODULE_EXISTS is set just
|
|
# copy the values from the LIBRARY variables
|
|
IF(NOT CMAKE_MODULE_EXISTS)
|
|
SET(CMAKE_SHARED_MODULE_C_FLAGS ${CMAKE_SHARED_LIBRARY_C_FLAGS})
|
|
SET(CMAKE_SHARED_MODULE_CREATE_C_FLAGS ${CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS})
|
|
ENDIF(NOT CMAKE_MODULE_EXISTS)
|
|
|
|
SET(CMAKE_C_FLAGS_INIT "$ENV{CFLAGS} ${CMAKE_C_FLAGS_INIT}")
|
|
# avoid just having a space as the initial value for the cache
|
|
IF(CMAKE_C_FLAGS_INIT STREQUAL " ")
|
|
SET(CMAKE_C_FLAGS_INIT)
|
|
ENDIF(CMAKE_C_FLAGS_INIT STREQUAL " ")
|
|
SET (CMAKE_C_FLAGS "${CMAKE_C_FLAGS_INIT}" CACHE STRING
|
|
"Flags used by the compiler during all build types.")
|
|
|
|
IF(NOT CMAKE_NOT_USING_CONFIG_FLAGS)
|
|
# default build type is none
|
|
IF(NOT CMAKE_NO_BUILD_TYPE)
|
|
SET (CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE_INIT} CACHE STRING
|
|
"Choose the type of build, options are: None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
|
|
ENDIF(NOT CMAKE_NO_BUILD_TYPE)
|
|
SET (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG_INIT}" CACHE STRING
|
|
"Flags used by the compiler during debug builds.")
|
|
SET (CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL_INIT}" CACHE STRING
|
|
"Flags used by the compiler during release minsize builds.")
|
|
SET (CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE_INIT}" CACHE STRING
|
|
"Flags used by the compiler during release builds (/MD /Ob1 /Oi /Ot /Oy /Gs will produce slightly less optimized but smaller files).")
|
|
SET (CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO_INIT}" CACHE STRING
|
|
"Flags used by the compiler during Release with Debug Info builds.")
|
|
ENDIF(NOT CMAKE_NOT_USING_CONFIG_FLAGS)
|
|
|
|
IF(CMAKE_C_STANDARD_LIBRARIES_INIT)
|
|
SET(CMAKE_C_STANDARD_LIBRARIES "${CMAKE_C_STANDARD_LIBRARIES_INIT}"
|
|
CACHE STRING "Libraries linked by defalut with all C applications.")
|
|
MARK_AS_ADVANCED(CMAKE_C_STANDARD_LIBRARIES)
|
|
ENDIF(CMAKE_C_STANDARD_LIBRARIES_INIT)
|
|
|
|
INCLUDE(CMakeCommonLanguageInclude)
|
|
|
|
# now define the following rule variables
|
|
|
|
# CMAKE_C_CREATE_SHARED_LIBRARY
|
|
# CMAKE_C_CREATE_SHARED_MODULE
|
|
# CMAKE_C_COMPILE_OBJECT
|
|
# CMAKE_C_LINK_EXECUTABLE
|
|
|
|
# variables supplied by the generator at use time
|
|
# <TARGET>
|
|
# <TARGET_BASE> the target without the suffix
|
|
# <OBJECTS>
|
|
# <OBJECT>
|
|
# <LINK_LIBRARIES>
|
|
# <FLAGS>
|
|
# <LINK_FLAGS>
|
|
|
|
# C compiler information
|
|
# <CMAKE_C_COMPILER>
|
|
# <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS>
|
|
# <CMAKE_SHARED_MODULE_CREATE_C_FLAGS>
|
|
# <CMAKE_C_LINK_FLAGS>
|
|
|
|
# Static library tools
|
|
# <CMAKE_AR>
|
|
# <CMAKE_RANLIB>
|
|
|
|
|
|
# create a C shared library
|
|
IF(NOT CMAKE_C_CREATE_SHARED_LIBRARY)
|
|
SET(CMAKE_C_CREATE_SHARED_LIBRARY
|
|
"<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_C_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
|
|
ENDIF(NOT CMAKE_C_CREATE_SHARED_LIBRARY)
|
|
|
|
# create a C shared module just copy the shared library rule
|
|
IF(NOT CMAKE_C_CREATE_SHARED_MODULE)
|
|
SET(CMAKE_C_CREATE_SHARED_MODULE ${CMAKE_C_CREATE_SHARED_LIBRARY})
|
|
ENDIF(NOT CMAKE_C_CREATE_SHARED_MODULE)
|
|
|
|
# Create a static archive incrementally for large object file counts.
|
|
# If CMAKE_C_CREATE_STATIC_LIBRARY is set it will override these.
|
|
IF(NOT DEFINED CMAKE_C_ARCHIVE_CREATE)
|
|
SET(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> cr <TARGET> <LINK_FLAGS> <OBJECTS>")
|
|
ENDIF()
|
|
IF(NOT DEFINED CMAKE_C_ARCHIVE_APPEND)
|
|
SET(CMAKE_C_ARCHIVE_APPEND "<CMAKE_AR> r <TARGET> <LINK_FLAGS> <OBJECTS>")
|
|
ENDIF()
|
|
IF(NOT DEFINED CMAKE_C_ARCHIVE_FINISH)
|
|
SET(CMAKE_C_ARCHIVE_FINISH "<CMAKE_RANLIB> <TARGET>")
|
|
ENDIF()
|
|
|
|
# compile a C file into an object file
|
|
IF(NOT CMAKE_C_COMPILE_OBJECT)
|
|
SET(CMAKE_C_COMPILE_OBJECT
|
|
"<CMAKE_C_COMPILER> <DEFINES> <FLAGS> -o <OBJECT> -c <SOURCE>")
|
|
ENDIF(NOT CMAKE_C_COMPILE_OBJECT)
|
|
|
|
IF(NOT CMAKE_C_LINK_EXECUTABLE)
|
|
SET(CMAKE_C_LINK_EXECUTABLE
|
|
"<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
|
|
ENDIF(NOT CMAKE_C_LINK_EXECUTABLE)
|
|
|
|
IF(NOT CMAKE_EXECUTABLE_RUNTIME_C_FLAG)
|
|
SET(CMAKE_EXECUTABLE_RUNTIME_C_FLAG ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG})
|
|
ENDIF(NOT CMAKE_EXECUTABLE_RUNTIME_C_FLAG)
|
|
|
|
IF(NOT CMAKE_EXECUTABLE_RUNTIME_C_FLAG_SEP)
|
|
SET(CMAKE_EXECUTABLE_RUNTIME_C_FLAG_SEP ${CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP})
|
|
ENDIF(NOT CMAKE_EXECUTABLE_RUNTIME_C_FLAG_SEP)
|
|
|
|
IF(NOT CMAKE_EXECUTABLE_RPATH_LINK_C_FLAG)
|
|
SET(CMAKE_EXECUTABLE_RPATH_LINK_C_FLAG ${CMAKE_SHARED_LIBRARY_RPATH_LINK_C_FLAG})
|
|
ENDIF(NOT CMAKE_EXECUTABLE_RPATH_LINK_C_FLAG)
|
|
|
|
MARK_AS_ADVANCED(
|
|
CMAKE_C_FLAGS
|
|
CMAKE_C_FLAGS_DEBUG
|
|
CMAKE_C_FLAGS_MINSIZEREL
|
|
CMAKE_C_FLAGS_RELEASE
|
|
CMAKE_C_FLAGS_RELWITHDEBINFO
|
|
)
|
|
SET(CMAKE_C_INFORMATION_LOADED 1)
|
|
|
|
|