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################################################################################
# ProjUtilities.cmake - part of CMake configuration of PROJ library
#
# Based on BoostUtilities.cmake from CMake configuration for Boost
################################################################################
# Copyright (C) 2007 Douglas Gregor <doug.gregor@gmail.com>
# Copyright (C) 2007 Troy Straszheim
# Copyright (C) 2010 Mateusz Loskot <mateusz@loskot.net>
#
# Distributed under the Boost Software License, Version 1.0.
# See accompanying file LICENSE_1_0.txt or copy at
# https://www.boost.org/LICENSE_1_0.txt
################################################################################
# Macros in this module:
#
# print_variable
# proj_target_output_name
# configure_proj_pc
#
################################################################################
#
# pretty-prints the value of a variable so that the
# equals signs align
#
function(print_variable NAME)
string(LENGTH "${NAME}" varlen)
math(EXPR padding_len 30-${varlen})
if(${padding_len} GREATER 0)
string(SUBSTRING " "
0 ${padding_len} varpadding)
endif()
message(STATUS "${NAME}${varpadding} = ${${NAME}}")
endfunction()
#
# Generates output name for given target depending on platform and version.
# For instance, on Windows, dynamic link libraries get ABI version suffix
# proj_X_Y.dll.
#
function(proj_target_output_name TARGET_NAME OUTPUT_NAME)
if(NOT DEFINED TARGET_NAME)
message(SEND_ERROR "Error, the variable TARGET_NAME is not defined!")
endif()
if(NOT DEFINED ${PROJECT_NAME}_VERSION)
message(SEND_ERROR
"Error, the variable ${${PROJECT_NAME}_VERSION} is not defined!")
endif()
# On Windows, ABI version is specified using binary file name suffix.
# On Unix, suffix is empty and SOVERSION is used instead.
if(WIN32)
string(LENGTH "${${PROJECT_NAME}_ABI_VERSION}" abilen)
if(abilen GREATER 0)
set(SUFFIX "_${${PROJECT_NAME}_ABI_VERSION}")
endif()
endif()
set(${OUTPUT_NAME} ${TARGET_NAME}${SUFFIX} PARENT_SCOPE)
endfunction()
#
# Configure a pkg-config file proj.pc
# See also ProjInstallPath.cmake
#
function(configure_proj_pc)
set(prefix "${CMAKE_INSTALL_PREFIX}")
set(exec_prefix "$\{prefix\}")
set(libdir "$\{exec_prefix\}/${PROJ_LIB_SUBDIR}")
set(includedir "$\{prefix\}/${PROJ_INCLUDE_SUBDIR}")
set(datarootdir "$\{prefix\}/${CMAKE_INSTALL_DATAROOTDIR}")
set(datadir "$\{datarootdir\}")
set(PACKAGE "proj")
set(VERSION ${PROJ_VERSION})
# Build strings of dependencies (Libs.private, Requires.private)
set(EXTRA_LIBS "${CMAKE_THREAD_LIBS_INIT}")
set(EXTRA_REQUIRES "")
option(USE_PKGCONFIG_REQUIRES "Use 'Requires' instead 'Libs' in proj.pc" ON)
macro(add_module_or_libs MODULE)
if(USE_PKGCONFIG_REQUIRES)
list(APPEND EXTRA_REQUIRES "${MODULE}")
else()
list(APPEND EXTRA_LIBS "${ARGN}")
endif()
endmacro()
add_module_or_libs(sqlite3 -lsqlite3)
if(TIFF_ENABLED)
add_module_or_libs(libtiff-4 -ltiff)
endif()
if(CURL_ENABLED)
add_module_or_libs(libcurl -lcurl)
endif()
if(WIN32 AND NOT MINGW)
list(APPEND EXTRA_LIBS -lole32 -lshell32)
else()
set(cxx_libs "${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES}")
list(REMOVE_ITEM cxx_libs ${CMAKE_C_IMPLICIT_LINK_LIBRARIES} nonempty)
foreach(lib IN LISTS cxx_libs)
list(APPEND EXTRA_LIBS "-l${lib}")
endforeach()
endif()
if(HAVE_LIBM AND NOT "-lm" IN_LIST EXTRA_LIBS)
list(APPEND EXTRA_LIBS -lm)
endif()
if(HAVE_LIBDL)
list(APPEND EXTRA_LIBS -ldl)
endif()
# Join list with a space; list(JOIN) added CMake 3.12
string(REPLACE ";" " " EXTRA_LIBS "${EXTRA_LIBS}")
string(REPLACE ";" " " EXTRA_REQUIRES "${EXTRA_REQUIRES}")
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/proj.pc.in
${CMAKE_CURRENT_BINARY_DIR}/proj.pc
@ONLY)
endfunction()
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