+# Taken from gpgmepp project
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. 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.
+#
+# - Try to find the gpgme library
+#
+# Algorithm:
+# - Windows:
+# On Windows, there's three gpgme variants: gpgme{,-glib,-qt}.
+# - The variant used determines the event loop integration possible:
+# - gpgme: no event loop integration possible, only synchronous operations supported
+# - gpgme-glib: glib event loop integration possible, only asynchronous operations supported
+# - gpgme-qt: qt event loop integration possible, only asynchronous operations supported
+# - GPGME_{VANILLA,GLIB,QT}_{FOUND,LIBRARIES} will be set for each of the above
+# - GPGME_INCLUDES is the same for all of the above
+# - GPGME_FOUND is set if any of the above was found
+# - *nix:
+# There's also three variants: gpgme{,-pthread,-pth}.
+# - The variant used determines the multithreaded use possible:
+# - gpgme: no multithreading support available
+# - gpgme-pthread: multithreading available using POSIX threads
+# - gpgme-pth: multithreading available using GNU PTH (cooperative multithreading)
+# - GPGME_{VANILLA,PTH,PTHREAD}_{FOUND,LIBRARIES} will be set for each of the above
+# - GPGME_INCLUDES is the same for all of the above
+# - GPGME_FOUND is set if any of the above was found
+#
+# GPGME_LIBRARY_DIR - the directory where the libraries are located
+
+#
+# THIS IS ALMOST A 1:1 COPY OF FindAssuan.cmake in kdepim.
+# Any changes here likely apply there, too.
+#
+
+include(FeatureSummary)
+
+# do away with crappy condition repetition on else/endfoo
+set( CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS_gpgme_saved ${CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS} )
+set( CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true )
+
+#if this is built-in, please replace, if it isn't, export into a MacroToBool.cmake of it's own
+macro( macro_bool_to_bool FOUND_VAR )
+ foreach( _current_VAR ${ARGN} )
+ if ( ${FOUND_VAR} )
+ set( ${_current_VAR} TRUE )
+ else()
+ set( ${_current_VAR} FALSE )
+ endif()
+ endforeach()
+endmacro()
+
+#HACK: local copy...
+MACRO(MACRO_BOOL_TO_01 FOUND_VAR )
+ FOREACH (_current_VAR ${ARGN})
+ IF(${FOUND_VAR})
+ SET(${_current_VAR} 1)
+ ELSE(${FOUND_VAR})
+ SET(${_current_VAR} 0)
+ ENDIF(${FOUND_VAR})
+ ENDFOREACH(_current_VAR)
+ENDMACRO(MACRO_BOOL_TO_01)
+
+
+if ( WIN32 )
+
+ # On Windows, we don't have a gpgme-config script, so we need to
+ # look for the stuff ourselves:
+
+ # in cmake, AND and OR have the same precedence, there's no
+ # subexpressions, and expressions are evaluated short-circuit'ed
+ # IOW: CMake if() suxx.
+ # Starting with CMake 2.6.3 you can group if expressions with (), but we
+ # don't require 2.6.3 but 2.6.2, we can't use it. Alex
+ set( _seem_to_have_cached_gpgme false )
+ if ( GPGME_INCLUDES )
+ if ( GPGME_VANILLA_LIBRARIES OR GPGME_QT_LIBRARIES OR GPGME_GLIB_LIBRARIES )
+ set( _seem_to_have_cached_gpgme true )
+ endif()
+ endif()
+
+ if ( _seem_to_have_cached_gpgme )
+
+ macro_bool_to_bool( GPGME_VANILLA_LIBRARIES GPGME_VANILLA_FOUND )
+ macro_bool_to_bool( GPGME_GLIB_LIBRARIES GPGME_GLIB_FOUND )
+ macro_bool_to_bool( GPGME_QT_LIBRARIES GPGME_QT_FOUND )
+ # this would have been preferred:
+ #set( GPGME_*_FOUND macro_bool_to_bool(GPGME_*_LIBRARIES) )
+
+ if ( GPGME_VANILLA_FOUND OR GPGME_GLIB_FOUND OR GPGME_QT_FOUND )
+ set( GPGME_FOUND true )
+ else()
+ set( GPGME_FOUND false )
+ endif()
+
+ else()
+
+ set( GPGME_FOUND false )
+ set( GPGME_VANILLA_FOUND false )
+ set( GPGME_GLIB_FOUND false )
+ set( GPGME_QT_FOUND false )
+
+ find_path( GPGME_INCLUDES gpgme.h
+ ${CMAKE_INCLUDE_PATH}
+ ${CMAKE_INSTALL_PREFIX}/include
+ )
+
+ find_library( _gpgme_vanilla_library NAMES gpgme libgpgme gpgme-11 libgpgme-11
+ PATHS
+ ${CMAKE_LIBRARY_PATH}
+ ${CMAKE_INSTALL_PREFIX}/lib
+ )
+
+ find_library( _gpgme_glib_library NAMES gpgme-glib libgpgme-glib gpgme-glib-11 libgpgme-glib-11
+ PATHS
+ ${CMAKE_LIBRARY_PATH}
+ ${CMAKE_INSTALL_PREFIX}/lib
+ )
+
+ find_library( _gpgme_qt_library NAMES gpgme-qt libgpgme-qt gpgme-qt-11 libgpgme-qt-11
+ PATHS
+ ${CMAKE_LIBRARY_PATH}
+ ${CMAKE_INSTALL_PREFIX}/lib
+ )
+
+ find_library( _gpg_error_library NAMES gpg-error libgpg-error gpg-error-0 libgpg-error-0
+ PATHS
+ ${CMAKE_LIBRARY_PATH}
+ ${CMAKE_INSTALL_PREFIX}/lib
+ )
+
+ set( GPGME_INCLUDES ${GPGME_INCLUDES} )
+
+ if ( _gpgme_vanilla_library AND _gpg_error_library )
+ set( GPGME_VANILLA_LIBRARIES ${_gpgme_vanilla_library} ${_gpg_error_library} )
+ set( GPGME_VANILLA_FOUND true )
+ set( GPGME_FOUND true )
+ endif()
+
+ if ( _gpgme_glib_library AND _gpg_error_library )
+ set( GPGME_GLIB_LIBRARIES ${_gpgme_glib_library} ${_gpg_error_library} )
+ set( GPGME_GLIB_FOUND true )
+ set( GPGME_FOUND true )
+ endif()
+
+ if ( _gpgme_qt_library AND _gpg_error_library )
+ set( GPGME_QT_LIBRARIES ${_gpgme_qt_library} ${_gpg_error_library} )
+ set( GPGME_QT_FOUND true )
+ set( GPGME_FOUND true )
+ endif()
+
+ endif()
+
+ # these are Unix-only:
+ set( GPGME_PTHREAD_FOUND false )
+ set( GPGME_PTH_FOUND false )
+ set( HAVE_GPGME_PTHREAD 0 )
+ set( HAVE_GPGME_PTH 0 )
+
+ macro_bool_to_01( GPGME_FOUND HAVE_GPGME )
+ macro_bool_to_01( GPGME_VANILLA_FOUND HAVE_GPGME_VANILLA )
+ macro_bool_to_01( GPGME_GLIB_FOUND HAVE_GPGME_GLIB )
+ macro_bool_to_01( GPGME_QT_FOUND HAVE_GPGME_QT )
+
+else() # not WIN32
+
+ # On *nix, we have the gpgme-config script which can tell us all we
+ # need to know:
+
+ # see WIN32 case for an explanation of what this does:
+ set( _seem_to_have_cached_gpgme false )
+ if ( GPGME_INCLUDES )
+ if ( GPGME_VANILLA_LIBRARIES OR GPGME_PTHREAD_LIBRARIES OR GPGME_PTH_LIBRARIES )
+ set( _seem_to_have_cached_gpgme true )
+ endif()
+ endif()
+
+ if ( _seem_to_have_cached_gpgme )
+
+ macro_bool_to_bool( GPGME_VANILLA_LIBRARIES GPGME_VANILLA_FOUND )
+ macro_bool_to_bool( GPGME_PTHREAD_LIBRARIES GPGME_PTHREAD_FOUND )
+ macro_bool_to_bool( GPGME_PTH_LIBRARIES GPGME_PTH_FOUND )
+
+ if ( GPGME_VANILLA_FOUND OR GPGME_PTHREAD_FOUND OR GPGME_PTH_FOUND )
+ set( GPGME_FOUND true )
+ else()
+ set( GPGME_FOUND false )
+ endif()
+
+ else()
+
+ set( GPGME_FOUND false )
+ set( GPGME_VANILLA_FOUND false )
+ set( GPGME_PTHREAD_FOUND false )
+ set( GPGME_PTH_FOUND false )
+
+ find_program( _GPGMECONFIG_EXECUTABLE NAMES gpgme-config )
+
+ # if gpgme-config has been found
+ if ( _GPGMECONFIG_EXECUTABLE )
+
+ message( STATUS "Found gpgme-config at ${_GPGMECONFIG_EXECUTABLE}" )
+
+ exec_program( ${_GPGMECONFIG_EXECUTABLE} ARGS --version OUTPUT_VARIABLE GPGME_VERSION )
+
+ set( _GPGME_MIN_VERSION "1.1.7" )
+
+ if ( ${GPGME_VERSION} VERSION_LESS ${_GPGME_MIN_VERSION} )
+
+ message( STATUS "The installed version of gpgme is too old: ${GPGME_VERSION} (required: >= ${_GPGME_MIN_VERSION})" )
+
+ else()
+
+ message( STATUS "Found gpgme v${GPGME_VERSION}, checking for flavours..." )
+
+ exec_program( ${_GPGMECONFIG_EXECUTABLE} ARGS --libs OUTPUT_VARIABLE _gpgme_config_vanilla_libs RETURN_VALUE _ret )
+ if ( _ret )
+ set( _gpgme_config_vanilla_libs )
+ endif()
+
+ exec_program( ${_GPGMECONFIG_EXECUTABLE} ARGS --thread=pthread --libs OUTPUT_VARIABLE _gpgme_config_pthread_libs RETURN_VALUE _ret )
+ if ( _ret )
+ set( _gpgme_config_pthread_libs )
+ endif()
+
+ exec_program( ${_GPGMECONFIG_EXECUTABLE} ARGS --thread=pth --libs OUTPUT_VARIABLE _gpgme_config_pth_libs RETURN_VALUE _ret )
+ if ( _ret )
+ set( _gpgme_config_pth_libs )
+ endif()
+
+ # append -lgpg-error to the list of libraries, if necessary
+ foreach ( _flavour vanilla pthread pth )
+ if ( _gpgme_config_${_flavour}_libs AND NOT _gpgme_config_${_flavour}_libs MATCHES "lgpg-error" )
+ set( _gpgme_config_${_flavour}_libs "${_gpgme_config_${_flavour}_libs} -lgpg-error" )
+ endif()
+ endforeach()
+
+ if ( _gpgme_config_vanilla_libs OR _gpgme_config_pthread_libs OR _gpgme_config_pth_libs )
+
+ exec_program( ${_GPGMECONFIG_EXECUTABLE} ARGS --cflags OUTPUT_VARIABLE _GPGME_CFLAGS )
+
+ if ( _GPGME_CFLAGS )
+ string( REGEX REPLACE "(\r?\n)+$" " " _GPGME_CFLAGS "${_GPGME_CFLAGS}" )
+ string( REGEX REPLACE " *-I" ";" GPGME_INCLUDES "${_GPGME_CFLAGS}" )
+ endif()
+
+ foreach ( _flavour vanilla pthread pth )
+ if ( _gpgme_config_${_flavour}_libs )
+
+ set( _gpgme_library_dirs )
+ set( _gpgme_library_names )
+ string( TOUPPER "${_flavour}" _FLAVOUR )
+
+ string( REGEX REPLACE " +" ";" _gpgme_config_${_flavour}_libs "${_gpgme_config_${_flavour}_libs}" )
+
+ foreach( _flag ${_gpgme_config_${_flavour}_libs} )
+ if ( "${_flag}" MATCHES "^-L" )
+ string( REGEX REPLACE "^-L" "" _dir "${_flag}" )
+ file( TO_CMAKE_PATH "${_dir}" _dir )
+ set( _gpgme_library_dirs ${_gpgme_library_dirs} "${_dir}" )
+ elseif( "${_flag}" MATCHES "^-l" )
+ string( REGEX REPLACE "^-l" "" _name "${_flag}" )
+ set( _gpgme_library_names ${_gpgme_library_names} "${_name}" )
+ endif()
+ endforeach()
+
+ set( GPGME_${_FLAVOUR}_FOUND true )
+
+ foreach( _name ${_gpgme_library_names} )
+ set( _gpgme_${_name}_lib )
+
+ # if -L options were given, look only there
+ if ( _gpgme_library_dirs )
+ find_library( _gpgme_${_name}_lib NAMES ${_name} PATHS ${_gpgme_library_dirs} NO_DEFAULT_PATH )
+ endif()
+
+ # if not found there, look in system directories
+ if ( NOT _gpgme_${_name}_lib )
+ find_library( _gpgme_${_name}_lib NAMES ${_name} )
+ endif()
+
+ # if still not found, then the whole flavour isn't found
+ if ( NOT _gpgme_${_name}_lib )
+ if ( GPGME_${_FLAVOUR}_FOUND )
+ set( GPGME_${_FLAVOUR}_FOUND false )
+ set( _not_found_reason "dependant library ${_name} wasn't found" )
+ endif()
+ endif()
+
+ set( GPGME_${_FLAVOUR}_LIBRARIES ${GPGME_${_FLAVOUR}_LIBRARIES} "${_gpgme_${_name}_lib}" )
+ endforeach()
+
+ #check_c_library_exists_explicit( gpgme gpgme_check_version "${_GPGME_CFLAGS}" "${GPGME_LIBRARIES}" GPGME_FOUND )
+ if ( GPGME_${_FLAVOUR}_FOUND )
+ message( STATUS " Found flavour '${_flavour}', checking whether it's usable...yes" )
+ else()
+ message( STATUS " Found flavour '${_flavour}', checking whether it's usable...no" )
+ message( STATUS " (${_not_found_reason})" )
+ endif()
+ endif()
+
+ endforeach( _flavour )
+
+ # ensure that they are cached
+ # This comment above doesn't make sense, the four following lines seem to do nothing. Alex
+ set( GPGME_INCLUDES ${GPGME_INCLUDES} )
+ set( GPGME_VANILLA_LIBRARIES ${GPGME_VANILLA_LIBRARIES} )
+ set( GPGME_PTHREAD_LIBRARIES ${GPGME_PTHREAD_LIBRARIES} )
+ set( GPGME_PTH_LIBRARIES ${GPGME_PTH_LIBRARIES} )
+
+ if ( GPGME_VANILLA_FOUND OR GPGME_PTHREAD_FOUND OR GPGME_PTH_FOUND )
+ set( GPGME_FOUND true )
+ else()
+ set( GPGME_FOUND false )
+ endif()
+
+ endif()
+
+ endif()
+
+ endif()
+
+ endif()
+
+ # these are Windows-only:
+ set( GPGME_GLIB_FOUND false )
+ set( GPGME_QT_FOUND false )
+ set( HAVE_GPGME_GLIB 0 )
+ set( HAVE_GPGME_QT 0 )
+
+ macro_bool_to_01( GPGME_FOUND HAVE_GPGME )
+ macro_bool_to_01( GPGME_VANILLA_FOUND HAVE_GPGME_VANILLA )
+ macro_bool_to_01( GPGME_PTHREAD_FOUND HAVE_GPGME_PTHREAD )
+ macro_bool_to_01( GPGME_PTH_FOUND HAVE_GPGME_PTH )
+
+endif() # WIN32 | Unix
+
+
+set( _gpgme_flavours "" )
+
+if ( GPGME_VANILLA_FOUND )
+ set( _gpgme_flavours "${_gpgme_flavours} vanilla" )
+endif()
+
+if ( GPGME_GLIB_FOUND )
+ set( _gpgme_flavours "${_gpgme_flavours} Glib" )
+endif()
+
+if ( GPGME_QT_FOUND )
+ set( _gpgme_flavours "${_gpgme_flavours} Qt" )
+endif()
+
+if ( GPGME_PTHREAD_FOUND )
+ set( _gpgme_flavours "${_gpgme_flavours} pthread" )
+endif()
+
+if ( GPGME_PTH_FOUND )
+ set( _gpgme_flavours "${_gpgme_flavours} pth" )
+endif()
+
+# determine the library in one of the found flavours, can be reused e.g. by FindQgpgme.cmake, Alex
+foreach(_currentFlavour vanilla glib qt pth pthread)
+ if(NOT GPGME_LIBRARY_DIR)
+ get_filename_component(GPGME_LIBRARY_DIR "${_gpgme_${_currentFlavour}_lib}" PATH)
+ endif()
+endforeach()
+
+if ( NOT Gpgme_FIND_QUIETLY )
+
+ if ( GPGME_FOUND )
+ message( STATUS "Usable gpgme flavours found: ${_gpgme_flavours}" )
+ else()
+ message( STATUS "No usable gpgme flavours found." )
+ endif()
+
+endif()
+
+if ( Gpgme_FIND_REQUIRED AND NOT GPGME_FOUND )
+ message( FATAL_ERROR "Did not find GPGME" )
+endif()
+
+
+if ( WIN32 )
+ set( _gpgme_homepage "http://www.gpg4win.org" )
+else()
+ set( _gpgme_homepage "http://www.gnupg.org/related_software/gpgme" )
+endif()
+
+set_package_properties(Gpgme PROPERTIES
+ DESCRIPTION "The GnuPG Made Easy (GPGME) library)"
+ URL ${_gpgme_homepage})
+
+set( CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS_gpgme_saved )
+