1 # - Try to find the GSS Kerberos library
2 # Once done this will define
4 # GSS_ROOT_DIR - Set this variable to the root installation of GSS
7 # GSS_FOUND - system has the Heimdal library
8 # GSS_FLAVOUR - "MIT" or "Heimdal" if anything found.
9 # GSS_INCLUDE_DIR - the Heimdal include directory
10 # GSS_LIBRARIES - The libraries needed to use GSS
11 # GSS_LINK_DIRECTORIES - Directories to add to linker search path
12 # GSS_LINKER_FLAGS - Additional linker flags
13 # GSS_COMPILER_FLAGS - Additional compiler flags
14 # GSS_VERSION - This is set to version advertised by pkg-config or read from manifest.
15 # In case the library is found but no version info available it'll be set to "unknown"
17 set(_MIT_MODNAME mit-krb5-gssapi)
18 set(_HEIMDAL_MODNAME heimdal-gssapi)
20 include(CheckIncludeFile)
21 include(CheckIncludeFiles)
22 include(CheckTypeSize)
29 # try to find library using system pkg-config if user didn't specify root dir
30 if(NOT GSS_ROOT_DIR AND NOT "$ENV{GSS_ROOT_DIR}")
32 find_package(PkgConfig QUIET)
33 pkg_search_module(_GSS_PKG ${_MIT_MODNAME} ${_HEIMDAL_MODNAME})
34 list(APPEND _GSS_ROOT_HINTS "${_GSS_PKG_PREFIX}")
36 list(APPEND _GSS_ROOT_HINTS "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MIT\\Kerberos;InstallDir]")
40 if(NOT _GSS_FOUND) #not found by pkg-config. Let's take more traditional approach.
41 find_file(_GSS_CONFIGURE_SCRIPT
49 NO_CMAKE_ENVIRONMENT_PATH
52 # if not found in user-supplied directories, maybe system knows better
53 find_file(_GSS_CONFIGURE_SCRIPT
60 if(_GSS_CONFIGURE_SCRIPT)
62 COMMAND ${_GSS_CONFIGURE_SCRIPT} "--cflags" "gssapi"
63 OUTPUT_VARIABLE _GSS_CFLAGS
64 RESULT_VARIABLE _GSS_CONFIGURE_FAILED
66 message(STATUS "CFLAGS: ${_GSS_CFLAGS}")
67 if(NOT _GSS_CONFIGURE_FAILED) # 0 means success
68 # should also work in an odd case when multiple directories are given
69 string(STRIP "${_GSS_CFLAGS}" _GSS_CFLAGS)
70 string(REGEX REPLACE " +-I" ";" _GSS_CFLAGS "${_GSS_CFLAGS}")
71 string(REGEX REPLACE " +-([^I][^ \\t;]*)" ";-\\1"_GSS_CFLAGS "${_GSS_CFLAGS}")
73 foreach(_flag ${_GSS_CFLAGS})
74 if(_flag MATCHES "^-I.*")
75 string(REGEX REPLACE "^-I" "" _val "${_flag}")
76 list(APPEND _GSS_INCLUDE_DIR "${_val}")
78 list(APPEND _GSS_COMPILER_FLAGS "${_flag}")
84 COMMAND ${_GSS_CONFIGURE_SCRIPT} "--libs" "gssapi"
85 OUTPUT_VARIABLE _GSS_LIB_FLAGS
86 RESULT_VARIABLE _GSS_CONFIGURE_FAILED
88 message(STATUS "LDFLAGS: ${_GSS_LIB_FLAGS}")
89 if(NOT _GSS_CONFIGURE_FAILED) # 0 means success
90 # this script gives us libraries and link directories. Blah. We have to deal with it.
91 string(STRIP "${_GSS_LIB_FLAGS}" _GSS_LIB_FLAGS)
92 string(REGEX REPLACE " +-(L|l)" ";-\\1" _GSS_LIB_FLAGS "${_GSS_LIB_FLAGS}")
93 string(REGEX REPLACE " +-([^Ll][^ \\t;]*)" ";-\\1"_GSS_LIB_FLAGS "${_GSS_LIB_FLAGS}")
95 foreach(_flag ${_GSS_LIB_FLAGS})
96 if(_flag MATCHES "^-l.*")
97 string(REGEX REPLACE "^-l" "" _val "${_flag}")
98 list(APPEND _GSS_LIBRARIES "${_val}")
99 elseif(_flag MATCHES "^-L.*")
100 string(REGEX REPLACE "^-L" "" _val "${_flag}")
101 list(APPEND _GSS_LINK_DIRECTORIES "${_val}")
103 list(APPEND _GSS_LINKER_FLAGS "${_flag}")
110 COMMAND ${_GSS_CONFIGURE_SCRIPT} "--version"
111 OUTPUT_VARIABLE _GSS_VERSION
112 RESULT_VARIABLE _GSS_CONFIGURE_FAILED
115 # older versions may not have the "--version" parameter. In this case we just don't care.
116 if(_GSS_CONFIGURE_FAILED)
122 COMMAND ${_GSS_CONFIGURE_SCRIPT} "--vendor"
123 OUTPUT_VARIABLE _GSS_VENDOR
124 RESULT_VARIABLE _GSS_CONFIGURE_FAILED
127 # older versions may not have the "--vendor" parameter. In this case we just don't care.
128 if(_GSS_CONFIGURE_FAILED)
129 set(GSS_FLAVOUR "Heimdal") # most probably, shouldn't really matter
131 if(_GSS_VENDOR MATCHES ".*H|heimdal.*")
132 set(GSS_FLAVOUR "Heimdal")
134 set(GSS_FLAVOUR "MIT")
138 else() # either there is no config script or we are on platform that doesn't provide one (Windows?)
140 find_path(_GSS_INCLUDE_DIR
150 if(_GSS_INCLUDE_DIR) #jay, we've found something
151 set(CMAKE_REQUIRED_INCLUDES "${_GSS_INCLUDE_DIR}")
152 check_include_files( "gssapi/gssapi_generic.h;gssapi/gssapi_krb5.h" _GSS_HAVE_MIT_HEADERS)
154 if(_GSS_HAVE_MIT_HEADERS)
155 set(GSS_FLAVOUR "MIT")
157 # prevent compiling the header - just check if we can include it
158 set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D__ROKEN_H__")
159 check_include_file( "roken.h" _GSS_HAVE_ROKEN_H)
161 check_include_file( "heimdal/roken.h" _GSS_HAVE_HEIMDAL_ROKEN_H)
162 if(_GSS_HAVE_ROKEN_H OR _GSS_HAVE_HEIMDAL_ROKEN_H)
163 set(GSS_FLAVOUR "Heimdal")
165 set(CMAKE_REQUIRED_DEFINITIONS "")
168 # I'm not convienced if this is the right way but this is what autotools do at the moment
169 find_path(_GSS_INCLUDE_DIR
180 set(GSS_FLAVOUR "Heimdal")
184 # if we have headers, check if we can link libraries
186 set(_GSS_LIBDIR_SUFFIXES "")
187 set(_GSS_LIBDIR_HINTS ${_GSS_ROOT_HINTS})
188 get_filename_component(_GSS_CALCULATED_POTENTIAL_ROOT "${_GSS_INCLUDE_DIR}" PATH)
189 list(APPEND _GSS_LIBDIR_HINTS ${_GSS_CALCULATED_POTENTIAL_ROOT})
192 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
193 list(APPEND _GSS_LIBDIR_SUFFIXES "lib/AMD64")
194 if(GSS_FLAVOUR STREQUAL "MIT")
195 set(_GSS_LIBNAME "gssapi64")
197 set(_GSS_LIBNAME "libgssapi")
200 list(APPEND _GSS_LIBDIR_SUFFIXES "lib/i386")
201 if(GSS_FLAVOUR STREQUAL "MIT")
202 set(_GSS_LIBNAME "gssapi32")
204 set(_GSS_LIBNAME "libgssapi")
208 list(APPEND _GSS_LIBDIR_SUFFIXES "lib;lib64") # those suffixes are not checked for HINTS
209 if(GSS_FLAVOUR STREQUAL "MIT")
210 set(_GSS_LIBNAME "gssapi_krb5")
212 set(_GSS_LIBNAME "gssapi")
216 find_library(_GSS_LIBRARIES
222 ${_GSS_LIBDIR_SUFFIXES}
229 if(_GSS_PKG_${_MIT_MODNAME}_VERSION)
230 set(GSS_FLAVOUR "MIT")
231 set(_GSS_VERSION _GSS_PKG_${_MIT_MODNAME}_VERSION)
233 set(GSS_FLAVOUR "Heimdal")
234 set(_GSS_VERSION _GSS_PKG_${_MIT_HEIMDAL}_VERSION)
238 set(GSS_INCLUDE_DIR ${_GSS_INCLUDE_DIR})
239 set(GSS_LIBRARIES ${_GSS_LIBRARIES})
240 set(GSS_LINK_DIRECTORIES ${_GSS_LINK_DIRECTORIES})
241 set(GSS_LINKER_FLAGS ${_GSS_LINKER_FLAGS})
242 set(GSS_COMPILER_FLAGS ${_GSS_COMPILER_FLAGS})
243 set(GSS_VERSION ${_GSS_VERSION})
247 if(NOT GSS_VERSION AND GSS_FLAVOUR STREQUAL "Heimdal")
248 if(CMAKE_SIZEOF_VOID_P EQUAL 8)
249 set(HEIMDAL_MANIFEST_FILE "Heimdal.Application.amd64.manifest")
251 set(HEIMDAL_MANIFEST_FILE "Heimdal.Application.x86.manifest")
254 if(EXISTS "${GSS_INCLUDE_DIR}/${HEIMDAL_MANIFEST_FILE}")
255 file(STRINGS "${GSS_INCLUDE_DIR}/${HEIMDAL_MANIFEST_FILE}" heimdal_version_str
256 REGEX "^.*version=\"[0-9]\\.[^\"]+\".*$")
258 string(REGEX MATCH "[0-9]\\.[^\"]+"
259 GSS_VERSION "${heimdal_version_str}")
263 set(GSS_VERSION "Heimdal Unknown")
265 elseif(NOT GSS_VERSION AND GSS_FLAVOUR STREQUAL "MIT")
266 get_filename_component(_MIT_VERSION "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MIT\\Kerberos\\SDK\\CurrentVersion;VersionString]" NAME CACHE)
267 if(WIN32 AND _MIT_VERSION)
268 set(GSS_VERSION "${_MIT_VERSION}")
270 set(GSS_VERSION "MIT Unknown")
276 include(FindPackageHandleStandardArgs)
278 set(_GSS_REQUIRED_VARS GSS_LIBRARIES GSS_FLAVOUR)
280 find_package_handle_standard_args(GSS
282 ${_GSS_REQUIRED_VARS}
286 "Could NOT find GSS, try to set the path to GSS root folder in the system variable GSS_ROOT_DIR"
289 mark_as_advanced(GSS_INCLUDE_DIR GSS_LIBRARIES)