diff options
| -rw-r--r-- | modules/UsePkgConfig.cmake | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/modules/UsePkgConfig.cmake b/modules/UsePkgConfig.cmake new file mode 100644 index 00000000..a3f831e5 --- /dev/null +++ b/modules/UsePkgConfig.cmake @@ -0,0 +1,50 @@ +# - pkg-config module for CMake +# +# Defines the following macros: +# +# PKGCONFIG(package includedir libdir linkflags cflags) +# +# Calling PKGCONFIG will fill the desired information into the 4 given arguments, +# e.g. PKGCONFIG(libart-2.0 LIBART_INCLUDE_DIR LIBART_LINK_DIR LIBART_LINK_FLAGS LIBART_CFLAGS) +# if pkg-config was NOT found or the specified software package doesn't exist, the +# variable will be empty when the function returns, otherwise they will contain the respective information +# + + + +FIND_PROGRAM(PKGCONFIG_EXECUTABLE NAMES pkg-config PATHS /usr/local/bin ) + +MACRO(PKGCONFIG _package _include_DIR _link_DIR _link_FLAGS _cflags) +# reset the variables at the beginning + SET(${_include_DIR}) + SET(${_link_DIR}) + SET(${_link_FLAGS}) + SET(${_cflags}) + # if pkg-config has been found + IF(PKGCONFIG_EXECUTABLE) + + EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --exists RETURN_VALUE _return_VALUE OUTPUT_VARIABLE _pkgconfigDevNull ) + + # and if the package of interest also exists for pkg-config, then get the information + IF(NOT _return_VALUE) + + EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=includedir OUTPUT_VARIABLE ${_include_DIR} ) + + EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=libdir OUTPUT_VARIABLE ${_link_DIR} ) + + EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --libs OUTPUT_VARIABLE ${_link_FLAGS} ) + + EXEC_PROGRAM(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --cflags OUTPUT_VARIABLE ${_cflags} ) + + ELSE( NOT _return_VALUE) + + MESSAGE(STATUS "PKGCONFIG macro signal that ${_package} is not installed on your computer.") + MESSAGE(STATUS "Install package which contains ${_package}.pc if you want to support this feature.") + + ENDIF(NOT _return_VALUE) + + ENDIF(PKGCONFIG_EXECUTABLE) + +ENDMACRO(PKGCONFIG _include_DIR _link_DIR _link_FLAGS _cflags) + +MARK_AS_ADVANCED(PKGCONFIG_EXECUTABLE) |