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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
UsePkgConfig
------------
Obsolete pkg-config module for CMake, use FindPkgConfig instead.
This module defines the following macro:
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 )
macro(PKGCONFIG _package _include_DIR _link_DIR _link_FLAGS _cflags)
message(STATUS
"WARNING: you are using the obsolete 'PKGCONFIG' macro, use FindPkgConfig")
# 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} )
string(REGEX REPLACE "[\r\n]" " " ${_include_DIR} "${${_include_DIR}}")
exec_program(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --variable=libdir
OUTPUT_VARIABLE ${_link_DIR} )
string(REGEX REPLACE "[\r\n]" " " ${_link_DIR} "${${_link_DIR}}")
exec_program(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --libs
OUTPUT_VARIABLE ${_link_FLAGS} )
string(REGEX REPLACE "[\r\n]" " " ${_link_FLAGS} "${${_link_FLAGS}}")
exec_program(${PKGCONFIG_EXECUTABLE} ARGS ${_package} --cflags
OUTPUT_VARIABLE ${_cflags} )
string(REGEX REPLACE "[\r\n]" " " ${_cflags} "${${_cflags}}")
else()
message(STATUS "PKGCONFIG() indicates that ${_package} is not installed (install the package which contains ${_package}.pc if you want to support this feature)")
endif()
# if pkg-config has NOT been found, INFORM the user
else()
message(STATUS "WARNING: PKGCONFIG() indicates that the tool pkg-config has not been found on your system. You should install it.")
endif()
endmacro()
mark_as_advanced(PKGCONFIG_EXECUTABLE)
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