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CMake: Add Requires.private information for GSSAPI to .pc file

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Try to find GSSAPI via pkg-config. If found, add the appropriate
module name, depending on the flavor, to the libssh.pc file so that
the pkg-config can report the list of libraries needed when linking
against the static library version of libssh.

Fix #293

Signed-off-by: John Thacker <johnthacker@gmail.com>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
This commit is contained in:
John Thacker 2025-02-27 09:58:03 -05:00 committed by Jakub Jelen
parent 7e3935e7d2
commit bf2b8954e8
3 changed files with 27 additions and 0 deletions
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3
CMakeLists.txt
View File

@ -41,6 +41,8 @@ macro_ensure_out_of_source_build("${PROJECT_NAME} requires an out of source buil
# Copy library files to a lib sub-directory
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
set(LIBSSSH_PC_REQUIRES_PRIVATE "")
# search for libraries
if (WITH_ZLIB)
find_package(ZLIB REQUIRED)
@ -66,6 +68,7 @@ find_package(Threads)
if (WITH_GSSAPI)
find_package(GSSAPI)
list(APPEND LIBSSH_PC_REQUIRES_PRIVATE ${GSSAPI_PC_REQUIRES})
endif (WITH_GSSAPI)
if (WITH_NACL)

23
cmake/Modules/FindGSSAPI.cmake
View File

@ -11,6 +11,8 @@
# GSSAPI_INCLUDE_DIR - the GSSAPI include directory
# GSSAPI_LIBRARIES - Link these to use GSSAPI
# GSSAPI_DEFINITIONS - Compiler switches required for using GSSAPI
# GSSAPI_PC_REQUIRES - pkg-config module name if found, needed for
# Requires.private for static linking
#
#=============================================================================
# Copyright (c) 2013 Andreas Schneider <asn@cryptomilk.org>
@ -24,12 +26,23 @@
#=============================================================================
#
set(_mit_modname "mit-krb5-gssapi")
set(_heimdal_modname "heimdal-gssapi")
if(NOT _GSSAPI_ROOT_HINTS AND NOT _GSSAPI_ROOT_PATHS)
find_package(PkgConfig QUIET)
if (PKG_CONFIG_FOUND)
pkg_search_module(_GSSAPI ${_mit_modname} ${_heimdal_modname})
endif()
endif()
find_path(GSSAPI_ROOT_DIR
NAMES
include/gssapi.h
include/gssapi/gssapi.h
HINTS
${_GSSAPI_ROOT_HINTS}
"${_GSSAPI_INCLUDEDIR}"
PATHS
${_GSSAPI_ROOT_PATHS}
)
@ -317,5 +330,15 @@ endif (GSSAPI_FLAVOR_HEIMDAL)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(GSSAPI DEFAULT_MSG GSSAPI_LIBRARIES GSSAPI_INCLUDE_DIR)
if(GSSAPI_FOUND)
if(_GSSAPI_FOUND) # via pkg-config
if (GSSAPI_FLAVOR_MIT)
set(GSSAPI_PC_REQUIRES ${_mit_modname})
elseif (GSSAPI_FLAVOR_HEIMDAL)
set(GSSAPI_PC_REQUIRES ${_heimdal_modname})
endif()
endif()
endif()
# show the GSSAPI_INCLUDE_DIR and GSSAPI_LIBRARIES variables only in the advanced view
mark_as_advanced(GSSAPI_INCLUDE_DIR GSSAPI_LIBRARIES)

1
libssh.pc.cmake
View File

@ -8,3 +8,4 @@ Description: The SSH Library
Version: @PROJECT_VERSION@
Libs: -L${libdir} -lssh
Cflags: -I${includedir}
Requires.private: @LIBSSH_PC_REQUIRES_PRIVATE@