# - 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. # # 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() include (MacroEnsureVersion) 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() # is this needed, of just unreflected cut'n'paste? # this isn't a KDE library, after all! if( NOT KDEWIN32_FOUND ) find_package( KDEWIN32 REQUIRED ) endif() 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 "1.0.0" ) macro_ensure_version( ${_GPGME_MIN_VERSION} ${GPGME_VERSION} _GPGME_INSTALLED_VERSION_OK ) if ( NOT _GPGME_INSTALLED_VERSION_OK ) 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() macro_bool_to_bool( Gpgme_FIND_REQUIRED _req ) if ( WIN32 ) set( _gpgme_homepage "http://www.gpg4win.org" ) else() set( _gpgme_homepage "http://www.gnupg.org/related_software/gpgme" ) endif() macro_log_feature( GPGME_FOUND "gpgme" "GnuPG Made Easy Development Libraries" ${_gpgme_homepage} ${_req} "${_GPGME_MIN_VERSION} or greater" "Needed to provide GNU Privacy Guard support in KDE PIM applications. Necessary to compile many PIM application, including KMail." ) else() if ( Gpgme_FIND_REQUIRED AND NOT GPGME_FOUND ) message( FATAL_ERROR "Did not find GPGME" ) endif() endif() set( CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS_gpgme_saved )