--- /dev/null
+#
+# OpenCV note: the file has been extracted from CMake 2.6.2 distribution.
+# It is used to build OpenCV with CMake 2.4.x
+#
+
+# - a pkg-config module for CMake
+#
+# Usage:
+# pkg_check_modules(<PREFIX> [REQUIRED] <MODULE> [<MODULE>]*)
+# checks for all the given modules
+#
+# pkg_search_module(<PREFIX> [REQUIRED] <MODULE> [<MODULE>]*)
+# 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
+#
+# 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
+# <PREFIX>_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.
+# <XPREFIX>_LIBRARIES ... only the libraries (w/o the '-l')
+# <XPREFIX>_LIBRARY_DIRS ... the paths of the libraries (w/o the '-L')
+# <XPREFIX>_LDFLAGS ... all required linker flags
+# <XPREFIX>_LDFLAGS_OTHER ... all other linker flags
+# <XPREFIX>_INCLUDE_DIRS ... the '-I' preprocessor flags (w/o the '-I')
+# <XPREFIX>_CFLAGS ... all required cflags
+# <XPREFIX>_CFLAGS_OTHER ... the other compiler flags
+#
+# <XPREFIX> = <PREFIX> for common case
+# <XPREFIX> = <PREFIX>_STATIC for static linking
+#
+# There are some special variables whose prefix depends on the count
+# of given modules. When there is only one module, <PREFIX> stays
+# unchanged. When there are multiple modules, the prefix will be
+# changed to <PREFIX>_<MODNAME>:
+# <XPREFIX>_VERSION ... version of the module
+# <XPREFIX>_PREFIX ... prefix-directory of the module
+# <XPREFIX>_INCLUDEDIR ... include-dir of the module
+# <XPREFIX>_LIBDIR ... lib-dir of the module
+#
+# <XPREFIX> = <PREFIX> when |MODULES| == 1, else
+# <XPREFIX> = <PREFIX>_<MODNAME>
+#
+# A <MODULE> parameter can have the following formats:
+# {MODNAME} ... matches any version
+# {MODNAME}>={VERSION} ... at least version <VERSION> is required
+# {MODNAME}={VERSION} ... exactly version <VERSION> is required
+# {MODNAME}<={VERSION} ... modules must not be newer than <VERSION>
+#
+# 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 <enrico.scholz@informatik.tu-chemnitz.de>
+#
+# 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.
+
+
+### 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 ${ARGN})
+endmacro(_pkgconfig_invoke_dyn)
+
+# Splits given arguments into options and a package list
+macro(_pkgconfig_parse_options _result _is_req)
+ set(${_is_req} 0)
+
+ foreach(_pkg ${ARGN})
+ if (_pkg STREQUAL "REQUIRED")
+ set(${_is_req} 1)
+ endif (_pkg STREQUAL "REQUIRED")
+ endforeach(_pkg ${ARGN})
+
+ set(${_result} ${ARGN})
+ list(REMOVE_ITEM ${_result} "REQUIRED")
+endmacro(_pkgconfig_parse_options)
+
+###
+macro(_pkg_check_modules_internal _is_required _is_silent _prefix)
+ _pkgconfig_unset(${_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 "${_pkg_check_modules_pkg}")
+ set(_pkg_check_modules_pkg_op)
+ set(_pkg_check_modules_pkg_ver)
+ endif(_pkg_check_modules_pkg MATCHES ".*(>=|=|<=).*")
+
+ # handle the operands
+ if (_pkg_check_modules_pkg_op STREQUAL ">=")
+ list(APPEND _pkg_check_modules_exist_query --atleast-version)
+ endif(_pkg_check_modules_pkg_op STREQUAL ">=")
+
+ if (_pkg_check_modules_pkg_op STREQUAL "=")
+ list(APPEND _pkg_check_modules_exist_query --exact-version)
+ endif(_pkg_check_modules_pkg_op STREQUAL "=")
+
+ if (_pkg_check_modules_pkg_op STREQUAL "<=")
+ list(APPEND _pkg_check_modules_exist_query --max-version)
+ endif(_pkg_check_modules_pkg_op STREQUAL "<=")
+
+ # create the final query which is of the format:
+ # * --atleast-version <version> <pkg-name>
+ # * --exact-version <version> <pkg-name>
+ # * --max-version <version> <pkg-name>
+ # * --exists <pkg-name>
+ if (_pkg_check_modules_pkg_op)
+ list(APPEND _pkg_check_modules_exist_query "${_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 )
+
+ message(STATUS " found ${_pkg_check_modules_pkg}, version ${_pkgconfig_VERSION}")
+ endforeach(_pkg_check_modules_pkg)
+
+ # set variables which are combined for multiple modules
+ _pkgconfig_invoke_dyn("${_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 ${_prefix}_FOUND)
+ _pkgconfig_parse_options (_pkg_modules _pkg_is_required "${_module0}" ${ARGN})
+ _pkg_check_modules_internal("${_pkg_is_required}" 0 "${_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 ${_prefix}_FOUND)
+ set(_pkg_modules_found 0)
+ _pkgconfig_parse_options(_pkg_modules_alt _pkg_is_required "${_module0}" ${ARGN})
+
+ message(STATUS "checking for one of the modules '${_pkg_modules_alt}'")
+
+ # 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:
projects / opencv / blobdiff