# - a pkg-config module for CMake # # Usage: # pkg_check_modules( [REQUIRED] [QUIET] []*) # checks for all the given modules # # pkg_search_module( [REQUIRED] [QUIET] []*) # checks for given modules and uses the first working one # # When the 'REQUIRED' argument was set, macros will fail with an error # when module(s) could not be found # # When the 'QUIET' argument is set, no status messages will be printed. # # It sets the following variables: # PKG_CONFIG_FOUND ... true if pkg-config works on the system # PKG_CONFIG_EXECUTABLE ... pathname of the pkg-config program # _FOUND ... set to 1 if module(s) exist # # For the following variables two sets of values exist; first one is the # common one and has the given PREFIX. The second set contains flags # which are given out when pkgconfig was called with the '--static' # option. # _LIBRARIES ... only the libraries (w/o the '-l') # _LIBRARY_DIRS ... the paths of the libraries (w/o the '-L') # _LDFLAGS ... all required linker flags # _LDFLAGS_OTHER ... all other linker flags # _INCLUDE_DIRS ... the '-I' preprocessor flags (w/o the '-I') # _CFLAGS ... all required cflags # _CFLAGS_OTHER ... the other compiler flags # # = for common case # = _STATIC for static linking # # There are some special variables whose prefix depends on the count # of given modules. When there is only one module, stays # unchanged. When there are multiple modules, the prefix will be # changed to _: # _VERSION ... version of the module # _PREFIX ... prefix-directory of the module # _INCLUDEDIR ... include-dir of the module # _LIBDIR ... lib-dir of the module # # = when |MODULES| == 1, else # = _ # # A parameter can have the following formats: # {MODNAME} ... matches any version # {MODNAME}>={VERSION} ... at least version is required # {MODNAME}={VERSION} ... exactly version is required # {MODNAME}<={VERSION} ... modules must not be newer than # # Examples # pkg_check_modules (GLIB2 glib-2.0) # # pkg_check_modules (GLIB2 glib-2.0>=2.10) # requires at least version 2.10 of glib2 and defines e.g. # GLIB2_VERSION=2.10.3 # # pkg_check_modules (FOO glib-2.0>=2.10 gtk+-2.0) # requires both glib2 and gtk2, and defines e.g. # FOO_glib-2.0_VERSION=2.10.3 # FOO_gtk+-2.0_VERSION=2.8.20 # # pkg_check_modules (XRENDER REQUIRED xrender) # defines e.g.: # XRENDER_LIBRARIES=Xrender;X11 # XRENDER_STATIC_LIBRARIES=Xrender;X11;pthread;Xau;Xdmcp # # pkg_search_module (BAR libxml-2.0 libxml2 libxml>=2) # Copyright (C) 2006 Enrico Scholz # # Redistribution and use, with or without modification, are permitted # provided that the following conditions are met: # # 1. Redistributions must retain the above copyright notice, this # list of conditions and the following disclaimer. # 2. The name of the author may not be used to endorse or promote # products derived from this software without specific prior # written permission. # # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER # IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR # OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN # IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # Modified for KDE use from cmake 2.6.2 version, to add QUIET option to # pkg_check_modules(). # Copyright (c) 2009, David Jarvie # # Redistribution and use is allowed according to the terms of the BSD license. # For details see the accompanying COPYING-CMAKE-SCRIPTS file. ### Common stuff #### set(PKG_CONFIG_VERSION 1) set(PKG_CONFIG_FOUND 0) find_program(PKG_CONFIG_EXECUTABLE NAMES pkg-config DOC "pkg-config executable") mark_as_advanced(PKG_CONFIG_EXECUTABLE) if(PKG_CONFIG_EXECUTABLE) set(PKG_CONFIG_FOUND 1) endif(PKG_CONFIG_EXECUTABLE) # Unsets the given variables macro(_pkgconfig_unset var) set(${var} "" CACHE INTERNAL "") endmacro(_pkgconfig_unset) macro(_pkgconfig_set var value) set(${var} ${value} CACHE INTERNAL "") endmacro(_pkgconfig_set) # Invokes pkgconfig, cleans up the result and sets variables macro(_pkgconfig_invoke _pkglist _prefix _varname _regexp) set(_pkgconfig_invoke_result) execute_process( COMMAND ${PKG_CONFIG_EXECUTABLE} ${ARGN} ${_pkglist} OUTPUT_VARIABLE _pkgconfig_invoke_result RESULT_VARIABLE _pkgconfig_failed) if (_pkgconfig_failed) set(_pkgconfig_${_varname} "") _pkgconfig_unset(${_prefix}_${_varname}) else(_pkgconfig_failed) string(REGEX REPLACE "[\r\n]" " " _pkgconfig_invoke_result "${_pkgconfig_invoke_result}") string(REGEX REPLACE " +$" "" _pkgconfig_invoke_result "${_pkgconfig_invoke_result}") if (NOT ${_regexp} STREQUAL "") string(REGEX REPLACE "${_regexp}" " " _pkgconfig_invoke_result "${_pkgconfig_invoke_result}") endif(NOT ${_regexp} STREQUAL "") separate_arguments(_pkgconfig_invoke_result) #message(STATUS " ${_varname} ... ${_pkgconfig_invoke_result}") set(_pkgconfig_${_varname} ${_pkgconfig_invoke_result}) _pkgconfig_set(${_prefix}_${_varname} "${_pkgconfig_invoke_result}") endif(_pkgconfig_failed) endmacro(_pkgconfig_invoke) # Invokes pkgconfig two times; once without '--static' and once with # '--static' macro(_pkgconfig_invoke_dyn _pkglist _prefix _varname cleanup_regexp) _pkgconfig_invoke("${_pkglist}" ${_prefix} ${_varname} "${cleanup_regexp}" ${ARGN}) _pkgconfig_invoke("${_pkglist}" ${_prefix} STATIC_${_varname} "${cleanup_regexp}" --static ${ARGN}) endmacro(_pkgconfig_invoke_dyn) # Splits given arguments into options and a package list macro(_pkgconfig_parse_options _result _is_req _is_silent) set(${_is_req} 0) set(${_is_silent} 0) foreach(_pkg ${ARGN}) if (_pkg STREQUAL "REQUIRED") set(${_is_req} 1) endif (_pkg STREQUAL "REQUIRED") if (_pkg STREQUAL "QUIET") set(${_is_silent} 1) endif (_pkg STREQUAL "QUIET") endforeach(_pkg ${ARGN}) set(${_result} ${ARGN}) list(REMOVE_ITEM ${_result} "REQUIRED") list(REMOVE_ITEM ${_result} "QUIET") endmacro(_pkgconfig_parse_options) ### macro(_pkg_check_modules_internal _is_required _is_silent _prefix) _pkgconfig_unset(${_prefix}_FOUND) _pkgconfig_unset(${_prefix}_VERSION) _pkgconfig_unset(${_prefix}_PREFIX) _pkgconfig_unset(${_prefix}_INCLUDEDIR) _pkgconfig_unset(${_prefix}_LIBDIR) _pkgconfig_unset(${_prefix}_LIBS) _pkgconfig_unset(${_prefix}_LIBS_L) _pkgconfig_unset(${_prefix}_LIBS_PATHS) _pkgconfig_unset(${_prefix}_LIBS_OTHER) _pkgconfig_unset(${_prefix}_CFLAGS) _pkgconfig_unset(${_prefix}_CFLAGS_I) _pkgconfig_unset(${_prefix}_CFLAGS_OTHER) _pkgconfig_unset(${_prefix}_STATIC_LIBDIR) _pkgconfig_unset(${_prefix}_STATIC_LIBS) _pkgconfig_unset(${_prefix}_STATIC_LIBS_L) _pkgconfig_unset(${_prefix}_STATIC_LIBS_PATHS) _pkgconfig_unset(${_prefix}_STATIC_LIBS_OTHER) _pkgconfig_unset(${_prefix}_STATIC_CFLAGS) _pkgconfig_unset(${_prefix}_STATIC_CFLAGS_I) _pkgconfig_unset(${_prefix}_STATIC_CFLAGS_OTHER) # create a better addressable variable of the modules and calculate its size set(_pkg_check_modules_list ${ARGN}) list(LENGTH _pkg_check_modules_list _pkg_check_modules_cnt) if(PKG_CONFIG_EXECUTABLE) # give out status message telling checked module if (NOT ${_is_silent}) if (_pkg_check_modules_cnt EQUAL 1) message(STATUS "checking for module '${_pkg_check_modules_list}'") else(_pkg_check_modules_cnt EQUAL 1) message(STATUS "checking for modules '${_pkg_check_modules_list}'") endif(_pkg_check_modules_cnt EQUAL 1) endif(NOT ${_is_silent}) set(_pkg_check_modules_packages) set(_pkg_check_modules_failed) # iterate through module list and check whether they exist and match the required version foreach (_pkg_check_modules_pkg ${_pkg_check_modules_list}) set(_pkg_check_modules_exist_query) # check whether version is given if (_pkg_check_modules_pkg MATCHES ".*(>=|=|<=).*") string(REGEX REPLACE "(.*[^><])(>=|=|<=)(.*)" "\\1" _pkg_check_modules_pkg_name "${_pkg_check_modules_pkg}") string(REGEX REPLACE "(.*[^><])(>=|=|<=)(.*)" "\\2" _pkg_check_modules_pkg_op "${_pkg_check_modules_pkg}") string(REGEX REPLACE "(.*[^><])(>=|=|<=)(.*)" "\\3" _pkg_check_modules_pkg_ver "${_pkg_check_modules_pkg}") else(_pkg_check_modules_pkg MATCHES ".*(>=|=|<=).*") set(_pkg_check_modules_pkg_name "${_pkg_check_modules_pkg}") set(_pkg_check_modules_pkg_op) set(_pkg_check_modules_pkg_ver) endif(_pkg_check_modules_pkg MATCHES ".*(>=|=|<=).*") # handle the operands if (_pkg_check_modules_pkg_op STREQUAL ">=") list(APPEND _pkg_check_modules_exist_query --atleast-version) endif(_pkg_check_modules_pkg_op STREQUAL ">=") if (_pkg_check_modules_pkg_op STREQUAL "=") list(APPEND _pkg_check_modules_exist_query --exact-version) endif(_pkg_check_modules_pkg_op STREQUAL "=") if (_pkg_check_modules_pkg_op STREQUAL "<=") list(APPEND _pkg_check_modules_exist_query --max-version) endif(_pkg_check_modules_pkg_op STREQUAL "<=") # create the final query which is of the format: # * --atleast-version # * --exact-version # * --max-version # * --exists if (_pkg_check_modules_pkg_op) list(APPEND _pkg_check_modules_exist_query "${_pkg_check_modules_pkg_ver}") else(_pkg_check_modules_pkg_op) list(APPEND _pkg_check_modules_exist_query --exists) endif(_pkg_check_modules_pkg_op) _pkgconfig_unset(${_prefix}_${_pkg_check_modules_pkg_name}_VERSION) _pkgconfig_unset(${_prefix}_${_pkg_check_modules_pkg_name}_PREFIX) _pkgconfig_unset(${_prefix}_${_pkg_check_modules_pkg_name}_INCLUDEDIR) _pkgconfig_unset(${_prefix}_${_pkg_check_modules_pkg_name}_LIBDIR) list(APPEND _pkg_check_modules_exist_query "${_pkg_check_modules_pkg_name}") list(APPEND _pkg_check_modules_packages "${_pkg_check_modules_pkg_name}") # execute the query execute_process( COMMAND ${PKG_CONFIG_EXECUTABLE} ${_pkg_check_modules_exist_query} RESULT_VARIABLE _pkgconfig_retval) # evaluate result and tell failures if (_pkgconfig_retval) if(NOT ${_is_silent}) message(STATUS " package '${_pkg_check_modules_pkg}' not found") endif(NOT ${_is_silent}) set(_pkg_check_modules_failed 1) endif(_pkgconfig_retval) endforeach(_pkg_check_modules_pkg) if(_pkg_check_modules_failed) # fail when requested if (${_is_required}) message(SEND_ERROR "A required package was not found") endif (${_is_required}) else(_pkg_check_modules_failed) # when we are here, we checked whether requested modules # exist. Now, go through them and set variables _pkgconfig_set(${_prefix}_FOUND 1) list(LENGTH _pkg_check_modules_packages pkg_count) # iterate through all modules again and set individual variables foreach (_pkg_check_modules_pkg ${_pkg_check_modules_packages}) # handle case when there is only one package required if (pkg_count EQUAL 1) set(_pkg_check_prefix "${_prefix}") else(pkg_count EQUAL 1) set(_pkg_check_prefix "${_prefix}_${_pkg_check_modules_pkg}") endif(pkg_count EQUAL 1) _pkgconfig_invoke(${_pkg_check_modules_pkg} "${_pkg_check_prefix}" VERSION "" --modversion ) _pkgconfig_invoke(${_pkg_check_modules_pkg} "${_pkg_check_prefix}" PREFIX "" --variable=prefix ) _pkgconfig_invoke(${_pkg_check_modules_pkg} "${_pkg_check_prefix}" INCLUDEDIR "" --variable=includedir ) _pkgconfig_invoke(${_pkg_check_modules_pkg} "${_pkg_check_prefix}" LIBDIR "" --variable=libdir ) if (NOT ${_is_silent}) message(STATUS " found ${_pkg_check_modules_pkg}, version ${_pkgconfig_VERSION}") endif (NOT ${_is_silent}) endforeach(_pkg_check_modules_pkg) # set variables which are combined for multiple modules _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LIBRARIES "(^| )-l" --libs-only-l ) _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LIBRARY_DIRS "(^| )-L" --libs-only-L ) _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LDFLAGS "" --libs ) _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LDFLAGS_OTHER "" --libs-only-other ) _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" INCLUDE_DIRS "(^| )-I" --cflags-only-I ) _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" CFLAGS "" --cflags ) _pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" CFLAGS_OTHER "" --cflags-only-other ) endif(_pkg_check_modules_failed) else(PKG_CONFIG_EXECUTABLE) if (${_is_required}) message(SEND_ERROR "pkg-config tool not found") endif (${_is_required}) endif(PKG_CONFIG_EXECUTABLE) endmacro(_pkg_check_modules_internal) ### ### User visible macros start here ### ### macro(pkg_check_modules _prefix _module0) # check cached value if (NOT DEFINED __pkg_config_checked_${_prefix} OR __pkg_config_checked_${_prefix} LESS ${PKG_CONFIG_VERSION} OR NOT ${_prefix}_FOUND) _pkgconfig_parse_options (_pkg_modules _pkg_is_required _pkg_is_silent "${_module0}" ${ARGN}) _pkg_check_modules_internal("${_pkg_is_required}" "${_pkg_is_silent}" "${_prefix}" ${_pkg_modules}) _pkgconfig_set(__pkg_config_checked_${_prefix} ${PKG_CONFIG_VERSION}) endif(NOT DEFINED __pkg_config_checked_${_prefix} OR __pkg_config_checked_${_prefix} LESS ${PKG_CONFIG_VERSION} OR NOT ${_prefix}_FOUND) endmacro(pkg_check_modules) ### macro(pkg_search_module _prefix _module0) # check cached value if (NOT DEFINED __pkg_config_checked_${_prefix} OR __pkg_config_checked_${_prefix} LESS ${PKG_CONFIG_VERSION} OR NOT ${_prefix}_FOUND) set(_pkg_modules_found 0) _pkgconfig_parse_options(_pkg_modules_alt _pkg_is_required _pkg_is_silent "${_module0}" ${ARGN}) if (NOT ${_pkg_is_silent}) message(STATUS "checking for one of the modules '${_pkg_modules_alt}'") endif (NOT ${_pkg_is_silent}) # iterate through all modules and stop at the first working one. foreach(_pkg_alt ${_pkg_modules_alt}) if(NOT _pkg_modules_found) _pkg_check_modules_internal(0 1 "${_prefix}" "${_pkg_alt}") endif(NOT _pkg_modules_found) if (${_prefix}_FOUND) set(_pkg_modules_found 1) endif(${_prefix}_FOUND) endforeach(_pkg_alt) if (NOT ${_prefix}_FOUND) if(${_pkg_is_required}) message(SEND_ERROR "None of the required '${_pkg_modules_alt}' found") endif(${_pkg_is_required}) endif(NOT ${_prefix}_FOUND) _pkgconfig_set(__pkg_config_checked_${_prefix} ${PKG_CONFIG_VERSION}) endif(NOT DEFINED __pkg_config_checked_${_prefix} OR __pkg_config_checked_${_prefix} LESS ${PKG_CONFIG_VERSION} OR NOT ${_prefix}_FOUND) endmacro(pkg_search_module) ### Local Variables: ### mode: cmake ### End: