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cmake: rewrite PAM module

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Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2021-02-24 10:17:46 +02:00
parent c1caca5927
commit 6ea63f1018
1 changed files with 25 additions and 43 deletions
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68
cmake/modules/FindPAM.cmake
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@ -5,41 +5,30 @@
# PAM_INCLUDE_DIR - the pam include directory
# PAM_LIBRARIES - libpam library
# PAM_MESSAGE_CONST - libpam pam_message struct is const
#
# Copyright (c) 2021, Ivailo Monev, <xakepa10@gmail.com>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
if (PAM_INCLUDE_DIR AND PAM_LIBRARY)
# Already in cache, be silent
set(PAM_FIND_QUIETLY TRUE)
endif (PAM_INCLUDE_DIR AND PAM_LIBRARY)
find_path(PAM_INCLUDE_DIR NAMES security/pam_appl.h pam/pam_appl.h)
find_path(PAM_INCLUDE_DIR NAMES security/pam_appl.h)
find_library(PAM_LIBRARY pam)
find_library(DL_LIBRARY dl)
if (PAM_INCLUDE_DIR AND PAM_LIBRARY)
set(PAM_FOUND TRUE)
if (DL_LIBRARY)
set(PAM_LIBRARIES ${PAM_LIBRARY} ${DL_LIBRARY})
else (DL_LIBRARY)
set(PAM_LIBRARIES ${PAM_LIBRARY})
endif (DL_LIBRARY)
if(DL_LIBRARY)
set(PAM_LIBRARIES ${PAM_LIBRARY} ${DL_LIBRARY})
else()
set(PAM_LIBRARIES ${PAM_LIBRARY})
endif()
if (EXISTS ${PAM_INCLUDE_DIR}/pam/pam_appl.h)
# darwin claims to be something special
set(HAVE_PAM_PAM_APPL_H 1)
endif (EXISTS ${PAM_INCLUDE_DIR}/pam/pam_appl.h)
if (NOT DEFINED PAM_MESSAGE_CONST)
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
cmake_reset_check_state()
set(CMAKE_REQUIRED_INCLUDES "${PAM_INCLUDE_DIR}")
# XXX does this work with plain c?
check_cxx_source_compiles("
#if ${HAVE_PAM_PAM_APPL_H}+0
# include <pam/pam_appl.h>
#else
# include <security/pam_appl.h>
#endif
if(NOT DEFINED PAM_MESSAGE_CONST)
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
cmake_reset_check_state()
set(CMAKE_REQUIRED_INCLUDES "${PAM_INCLUDE_DIR}")
# XXX does this work with plain c?
check_cxx_source_compiles("
#include <security/pam_appl.h>
static int PAM_conv(
int num_msg,
@ -61,19 +50,12 @@ int main(void)
}
" PAM_MESSAGE_CONST)
cmake_reset_check_state()
endif (NOT DEFINED PAM_MESSAGE_CONST)
set(PAM_MESSAGE_CONST ${PAM_MESSAGE_CONST} CACHE BOOL "PAM expects a conversation function with const pam_message")
endif()
set(PAM_MESSAGE_CONST ${PAM_MESSAGE_CONST} CACHE BOOL "PAM expects a conversation function with const pam_message")
endif (PAM_INCLUDE_DIR AND PAM_LIBRARY)
if (PAM_FOUND)
if (NOT PAM_FIND_QUIETLY)
message(STATUS "Found PAM: ${PAM_LIBRARIES}")
endif (NOT PAM_FIND_QUIETLY)
else (PAM_FOUND)
if (PAM_FIND_REQUIRED)
message(FATAL_ERROR "PAM was not found")
endif(PAM_FIND_REQUIRED)
endif (PAM_FOUND)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(PAM
REQUIRED_VARS PAM_LIBRARIES PAM_INCLUDE_DIR
)
mark_as_advanced(PAM_INCLUDE_DIR PAM_LIBRARY DL_LIBRARY PAM_MESSAGE_CONST)