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ProjUtilities.cmake
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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 <[email protected]>
# Copyright (C) 2007 Troy Straszheim
# Copyright (C) 2010 Mateusz Loskot <[email protected]>
#
# 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()
#
# Configure a pkg-config file proj.pc
# See also ProjInstallPath.cmake
#
function(set_variable_from_rel_or_absolute_path var root rel_or_abs_path)
if(IS_ABSOLUTE "${rel_or_abs_path}")
set(${var} "${rel_or_abs_path}" PARENT_SCOPE)
else()
set(${var} "${root}/${rel_or_abs_path}" PARENT_SCOPE)
endif()
endfunction()
function(configure_proj_pc)
set(prefix ${CMAKE_INSTALL_PREFIX})
set_variable_from_rel_or_absolute_path("libdir" "$\{prefix\}" "${CMAKE_INSTALL_LIBDIR}")
set_variable_from_rel_or_absolute_path("includedir" "$\{prefix\}" "${CMAKE_INSTALL_INCLUDEDIR}")
set_variable_from_rel_or_absolute_path("datarootdir" "$\{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 lists with a space
list(JOIN EXTRA_LIBS " " EXTRA_LIBS)
list(JOIN EXTRA_REQUIRES " " EXTRA_REQUIRES)
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/proj.pc.in
${CMAKE_CURRENT_BINARY_DIR}/proj.pc
@ONLY)
endfunction()