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# Copyright (C) 2019 - 2022 by Pedro Mendes, Rector and Visitors of the
# University of Virginia, University of Heidelberg, and University
# of Connecticut School of Medicine.
# All rights reserved.
# Copyright (C) 2017 - 2018 by Pedro Mendes, Virginia Tech Intellectual
# Properties, Inc., University of Heidelberg, and University of
# of Connecticut School of Medicine.
# All rights reserved.
# Copyright (C) 2013 - 2016 by Pedro Mendes, Virginia Tech Intellectual
# Properties, Inc., University of Heidelberg, and The University
# of Manchester.
# All rights reserved.
# - Try to find the Expat XML parsing library
# Once done this will define
#
# EXPAT_FOUND - system has Expat
# EXPAT_LIBRARY - Link these to use Expat
# EXPAT_INCLUDE_DIR - Include directory for using Expat
# EXPAT_DEFINITIONS - Compiler switches required for using Expat
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
include(CheckCSourceCompiles)
string(TOUPPER ${PROJECT_NAME} _UPPER_PROJECT_NAME)
set(_PROJECT_DEPENDENCY_DIR ${_UPPER_PROJECT_NAME}_DEPENDENCY_DIR)
find_path(EXPAT_INCLUDE_DIR expat.h
PATHS $ENV{EXPAT_DIR}/include
$ENV{EXPAT_DIR}
${${_PROJECT_DEPENDENCY_DIR}}/include
NO_DEFAULT_PATH)
if (NOT EXPAT_INCLUDE_DIR)
find_path(EXPAT_INCLUDE_DIR expat.h
PATHS $ENV{EXPAT_DIR}/include
$ENV{EXPAT_DIR}
${${_PROJECT_DEPENDENCY_DIR}}/include
~/Library/Frameworks
/Library/Frameworks
/sw/include # Fink
/opt/local/include # MacPorts
/opt/csw/include # Blastwave
/opt/include
/usr/freeware/include
NO_DEFAULT_PATH
CMAKE_FIND_ROOT_PATH_BOTH)
endif ()
if (NOT EXPAT_INCLUDE_DIR)
find_path(EXPAT_INCLUDE_DIR expat.h
CMAKE_FIND_ROOT_PATH_BOTH)
endif ()
find_library(EXPAT_LIBRARY
NAMES libexpat expat
PATHS $ENV{EXPAT_DIR}/${CMAKE_INSTALL_LIBDIR}
$ENV{EXPAT_DIR}/lib-dbg
$ENV{EXPAT_DIR}
${${_PROJECT_DEPENDENCY_DIR}}/${CMAKE_INSTALL_LIBDIR}
${${_PROJECT_DEPENDENCY_DIR}}/lib64
${${_PROJECT_DEPENDENCY_DIR}}/lib
${${_PROJECT_DEPENDENCY_DIR}}
NO_DEFAULT_PATH)
if (NOT EXPAT_LIBRARY)
find_library(EXPAT_LIBRARY
NAMES libexpat expat
PATHS $ENV{EXPAT_DIR}/${CMAKE_INSTALL_LIBDIR}
$ENV{EXPAT_DIR}/lib-dbg
$ENV{EXPAT_DIR}
${${_PROJECT_DEPENDENCY_DIR}}/${CMAKE_INSTALL_LIBDIR}
${${_PROJECT_DEPENDENCY_DIR}}
~/Library/Frameworks
/Library/Frameworks
/sw/lib # Fink
/opt/local/lib # MacPorts
/opt/csw/lib # Blastwave
/opt/lib
/usr/freeware/lib64
NO_DEFAULT_PATH
CMAKE_FIND_ROOT_PATH_BOTH)
endif()
if (NOT EXPAT_LIBRARY)
find_library(EXPAT_LIBRARY NAMES libexpat expat
CMAKE_FIND_ROOT_PATH_BOTH )
endif ()
mark_as_advanced(EXPAT_INCLUDE_DIR EXPAT_LIBRARY)
if (EXPAT_INCLUDE_DIR AND EXISTS "${EXPAT_INCLUDE_DIR}/expat.h")
file(STRINGS "${EXPAT_INCLUDE_DIR}/expat.h" expat_version_str
REGEX "^#[\t ]*define[\t ]+XML_(MAJOR|MINOR|MICRO)_VERSION[\t ]+[0-9]+$")
unset(EXPAT_VERSION CACHE)
set(_STARTED FALSE)
foreach(VPART MAJOR MINOR MICRO)
foreach(VLINE ${expat_version_str})
if(VLINE MATCHES "^#[\t ]*define[\t ]+XML_${VPART}_VERSION[\t ]+([0-9]+)$")
set(EXPAT_VERSION_PART "${CMAKE_MATCH_1}")
if(_STARTED)
string(APPEND EXPAT_VERSION ".${EXPAT_VERSION_PART}")
else()
set(EXPAT_VERSION "${EXPAT_VERSION_PART}")
set(_STARTED TRUE)
endif()
endif()
endforeach()
endforeach()
unset(_STARTED)
endif ()
# create an expat target to link against
if(NOT TARGET EXPAT::EXPAT)
add_library(EXPAT::EXPAT UNKNOWN IMPORTED)
set_target_properties(EXPAT::EXPAT PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "C"
IMPORTED_LOCATION "${EXPAT_LIBRARY}"
INTERFACE_INCLUDE_DIRECTORIES "${EXPAT_INCLUDE_DIR}")
endif()
# figure out if we need XML_STATIC flag
if (EXPAT_INCLUDE_DIR AND EXPAT_LIBRARY)
enable_language(C)
set(EXPAT_EXPAT_CODE
"
#include <expat.h>
#include <stdio.h>
int
main(void)
{
printf(\"%s\", XML_ExpatVersion());
return 0;
}
"
)
set(CMAKE_REQUIRED_LIBRARIES_CACHE ${CMAKE_REQUIRED_LIBRARIES})
set(CMAKE_REQUIRED_INCLUDES_CACHE ${CMAKE_REQUIRED_INCLUDES})
set(CMAKE_REQUIRED_DEFINITIONS_CACHE ${CMAKE_REQUIRED_DEFINITIONS})
set(EXPAT_EXPAT_TEST)
set(CMAKE_REQUIRED_LIBRARIES "${EXPAT_LIBRARY}")
set(CMAKE_REQUIRED_INCLUDES "${EXPAT_INCLUDE_DIR}")
CHECK_C_SOURCE_COMPILES("${EXPAT_EXPAT_CODE}" EXPAT_EXPAT_TEST)
if (NOT EXPAT_EXPAT_TEST)
set(CMAKE_REQUIRED_LIBRARIES "${EXPAT_LIBRARY}")
set(CMAKE_REQUIRED_INCLUDES "${EXPAT_INCLUDE_DIR}")
set(CMAKE_REQUIRED_DEFINITIONS "-DXML_STATIC=1")
CHECK_C_SOURCE_COMPILES("${EXPAT_EXPAT_CODE}" EXPAT_EXPAT_TEST2)
if (EXPAT_EXPAT_TEST2)
set_target_properties(EXPAT::EXPAT PROPERTIES
INTERFACE_COMPILE_DEFINITIONS "XML_STATIC=1"
)
else()
message(FATAL_ERROR "Unable to compile a test executable against expat with
EXPAT_INCLUDE_DIR = ${EXPAT_INCLUDE_DIR}
EXPAT_LIBRARY = ${EXPAT_LIBRARY}
")
endif()
endif()
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES_CACHE})
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_CACHE})
set(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS_CACHE})
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
EXPAT
VERSION_VAR EXPAT_VERSION
REQUIRED_VARS EXPAT_LIBRARY EXPAT_INCLUDE_DIR)
mark_as_advanced(EXPAT_VERSION)
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