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authorAlex Neundorf <neundorf@kde.org>2011-07-02 21:14:28 (GMT)
committerAlex Neundorf <neundorf@kde.org>2011-07-02 21:14:28 (GMT)
commite4f603b698a13857e79a5f6df18a7461b20d4bd4 (patch)
tree83a4c2dfe14bced8a23129ed0aa3238e3baa384c /Modules/CMakeFindPackageMode.cmake
parenta91d662f46fd2781fc5a3b73c2d244ac6dc2a343 (diff)
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Implement find-package mode of cmake
In find-package mode, cmake executes Modules/CMakeFindPackage.cmake, which calls find_package(), and this is then evaluated in cmake.cxx, which prints an appropriate message to stdout, so it can be used e.g. in a normal Makefile: $ /opt/cmake-HEAD/bin/cmake --find-package -DNAME=JPEG -DCOMPILER_ID=GNU -DLANGUAGE=C -DMODE=EXIST JPEG found. $ /opt/cmake-HEAD/bin/cmake --find-package -DNAME=JPEG -DCOMPILER_ID=GNU -DLANGUAGE=C -DMODE=COMPILE $ /opt/cmake-HEAD/bin/cmake --find-package -DNAME=JPEG -DCOMPILER_ID=GNU -DLANGUAGE=C -DMODE=LINK -rdynamic -ljpeg Alex
Diffstat (limited to 'Modules/CMakeFindPackageMode.cmake')
-rw-r--r--Modules/CMakeFindPackageMode.cmake125
1 files changed, 125 insertions, 0 deletions
diff --git a/Modules/CMakeFindPackageMode.cmake b/Modules/CMakeFindPackageMode.cmake
new file mode 100644
index 0000000..5842c7a
--- /dev/null
+++ b/Modules/CMakeFindPackageMode.cmake
@@ -0,0 +1,125 @@
+# COMPILER_ID = GNU/Intel/etc.
+# LANGUAGE = C/CXX/Fortan/ASM
+# MODE = EXIST/COMPILE/LINK
+# NAME = name of the package
+# QUIET = if TRUE, don't print anything
+
+if(NOT NAME)
+ message(FATAL_ERROR "NAME argument not specified.")
+endif()
+
+if(NOT COMPILER_ID)
+ message(FATAL_ERROR "COMPILER_ID argument not specified. In doubt, use GNU.")
+endif()
+
+if(NOT LANGUAGE)
+ message(FATAL_ERROR "LANGUAGE argument not specified. Use C, CXX or Fortran.")
+endif()
+
+if(NOT MODE)
+ message(FATAL_ERROR "MODE argument not specified. Use either EXIST, COMPILE or LINK.")
+endif()
+
+
+include(CMakeDetermineSystem)
+
+# Also load the system specific file, which sets up e.g. the search paths.
+# This makes the FIND_XXX() calls work much better
+include(CMakeSystemSpecificInformation)
+
+# this is ugly, and not enough for the multilib-stuff I guess
+if(UNIX AND EXISTS /usr/lib64)
+ set(CMAKE_SIZEOF_VOID_P 8)
+endif()
+
+set(CMAKE_${LANGUAGE}_COMPILER "dummy")
+set(CMAKE_${LANGUAGE}_COMPILER_ID "${COMPILER_ID}")
+include(CMake${LANGUAGE}Information)
+
+
+function(print_compile_flags _packageName)
+ string(TOUPPER "${_packageName}" PACKAGE_NAME)
+ # Check the following variables:
+ # FOO_INCLUDE_DIRS
+ # Foo_INCLUDE_DIRS
+ # FOO_INCLUDES
+ # Foo_INCLUDES
+ # FOO_INCLUDE_DIR
+ # Foo_INCLUDE_DIR
+ set(includes)
+ if(DEFINED ${_packageName}_INCLUDE_DIRS)
+ set(includes ${_packageName}_INCLUDE_DIRS)
+ elseif(DEFINED ${PACKAGE_NAME}_INCLUDE_DIRS)
+ set(includes ${PACKAGE_NAME}_INCLUDE_DIRS)
+ elseif(DEFINED ${_packageName}_INCLUDES)
+ set(includes ${_packageName}_INCLUDES)
+ elseif(DEFINED ${PACKAGE_NAME}_INCLUDES)
+ set(includes ${PACKAGE_NAME}_INCLUDES)
+ elseif(DEFINED ${_packageName}_INCLUDE_DIR)
+ set(includes ${_packageName}_INCLUDE_DIR)
+ elseif(DEFINED ${PACKAGE_NAME}_INCLUDE_DIR)
+ set(includes ${PACKAGE_NAME}_INCLUDE_DIR)
+ endif()
+
+ set(PACKAGE_INCLUDE_DIRS "${${includes}}" PARENT_SCOPE)
+
+ # Check the following variables:
+ # FOO_DEFINITIONS
+ # Foo_DEFINITIONS
+ set(definitions)
+ if(DEFINED ${_packageName}_DEFINITIONS)
+ set(definitions ${_packageName}_DEFINITIONS)
+ elseif(DEFINED ${PACKAGE_NAME}_DEFINITIONS)
+ set(definitions ${PACKAGE_NAME}_DEFINITIONS)
+ endif()
+
+ set(PACKAGE_DEFINITIONS "${${definitions}}" )
+
+endfunction()
+
+
+function(print_link_flags _packageName)
+ string(TOUPPER "${_packageName}" PACKAGE_NAME)
+ # Check the following variables:
+ # FOO_LIBRARIES
+ # Foo_LIBRARIES
+ # FOO_LIBS
+ # Foo_LIBS
+ set(libs)
+ if(DEFINED ${_packageName}_LIBRARIES)
+ set(libs ${_packageName}_LIBRARIES)
+ elseif(DEFINED ${PACKAGE_NAME}_LIBRARIES)
+ set(libs ${PACKAGE_NAME}_LIBRARIES)
+ elseif(DEFINED ${_packageName}_LIBS)
+ set(libs ${_packageName}_LIBS)
+ elseif(DEFINED ${PACKAGE_NAME}_LIBS)
+ set(libs ${PACKAGE_NAME}_LIBS)
+ endif()
+
+ set(PACKAGE_LIBRARIES "${${libs}}" PARENT_SCOPE )
+
+endfunction()
+
+
+find_package("${NAME}" QUIET)
+
+set(PACKAGE_FOUND FALSE)
+
+string(TOUPPER "${NAME}" UPPERCASE_NAME)
+
+if(${NAME}_FOUND OR ${UPPERCASE_NAME}_FOUND)
+ set(PACKAGE_FOUND TRUE)
+
+ if("${MODE}" STREQUAL "EXIST")
+ # do nothing
+ elseif("${MODE}" STREQUAL "COMPILE")
+ print_compile_flags(${NAME})
+ elseif("${MODE}" STREQUAL "LINK")
+ print_link_flags(${NAME})
+ else("${MODE}" STREQUAL "LINK")
+ message(FATAL_ERROR "Invalid mode argument ${MODE} given.")
+ endif()
+
+endif()
+
+set(PACKAGE_QUIET ${SILENT} )