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[devel] Various bugfixes and improvements to CMakeLists.txt (Philip Lowman)

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1. Modify project(PNG) to project(PNG C) to avoid search for C++ compiler
2. set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true) and fix end conditionals
from ugly else(FOO AND BAR) endif(FOO AND BAR) to else() endif()
3. Add missing include_directories() for ZLIB_INCLUDE_DIR
4. Created CMake options to allow configurable building of STATIC or SHARED
libpng, both default on.
5. Modified PNG_DEBUG to default to false?
6. Fix installation of static/shared libraries so DLL goes in prefix+/bin,
all others in prefix+/lib
This commit is contained in:
Glenn Randers-Pehrson
2009-08-27 15:59:40 -05:00
parent 5b754aac0d
commit 38e467edac
3 changed files with 94 additions and 47 deletions
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129
CMakeLists.txt
View File

@@ -1,5 +1,5 @@
project(PNG)
project(PNG C)
cmake_minimum_required(VERSION 2.4.3)
# Copyright (C) 2007 Glenn Randers-Pehrson
@@ -13,8 +13,12 @@ set(PNGLIB_RELEASE 0)
set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE})
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
# needed packages
find_package(ZLIB REQUIRED)
include_directories(${ZLIB_INCLUDE_DIR})
if(NOT WIN32)
find_library(M_LIBRARY
NAMES m
@@ -23,24 +27,33 @@ if(NOT WIN32)
if(NOT M_LIBRARY)
message(STATUS
"math library 'libm' not found - floating point support disabled")
endif(NOT M_LIBRARY)
else(NOT WIN32)
endif()
else()
# not needed on windows
set(M_LIBRARY "")
endif(NOT WIN32)
endif()
# COMMAND LINE OPTIONS
option(PNG_SHARED "Build shared lib" YES)
option(PNG_STATIC "Build static lib" YES)
if(DEFINED PNG_SHARED)
option(PNG_SHARED "Build shared lib" ${PNG_SHARED})
else()
option(PNG_SHARED "Build shared lib" ON)
endif()
if(DEFINED PNG_STATIC)
option(PNG_STATIC "Build static lib" ${PNG_STATIC})
else()
option(PNG_STATIC "Build static lib" ON)
endif()
if(MINGW)
option(PNG_TESTS "Build pngtest" NO)
else(MINGW)
option(PNG_TESTS "Build pngtest" YES)
endif(MINGW)
option(PNG_NO_CONSOLE_IO "FIXME" YES)
option(PNG_NO_STDIO "FIXME" YES)
option(PNG_DEBUG "Build with debug output" YES)
option(PNG_DEBUG "Build with debug output" NO)
option(PNGARG "FIXME" YES)
#TODO:
# PNG_CONSOLE_IO_SUPPORTED
@@ -57,20 +70,16 @@ if(NOT WIN32)
set(png_asm_tmp "OFF")
endif("uname_output" MATCHES "^.*i[1-9]86.*$")
endif(uname_executable)
else(NOT WIN32)
else()
# this env var is normally only set on win64
SET(TEXT "ProgramFiles(x86)")
if("$ENV{${TEXT}}" STREQUAL "")
set(png_asm_tmp "ON")
endif("$ENV{${TEXT}}" STREQUAL "")
endif(NOT WIN32)
endif()
# SET LIBNAME
# msvc does not append 'lib' - do it here to have consistent name
if(MSVC)
set(PNG_LIB_NAME lib)
endif(MSVC)
set(PNG_LIB_NAME ${PNG_LIB_NAME}png${PNGLIB_MAJOR}${PNGLIB_MINOR})
set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR})
# to distinguish between debug and release lib
set(CMAKE_DEBUG_POSTFIX "d")
@@ -105,51 +114,64 @@ if(MSVC)
add_definitions(-DPNG_NO_MODULEDEF -D_CRT_SECURE_NO_DEPRECATE)
endif(MSVC)
add_definitions(-DZLIB_DLL)
if(PNG_SHARED OR NOT MSVC)
#if building msvc static this has NOT do be defined
add_definitions(-DZLIB_DLL)
endif()
if(PNG_CONSOLE_IO_SUPPORTED)
add_definitions(-DPNG_CONSOLE_IO_SUPPORTED)
endif(PNG_CONSOLE_IO_SUPPORTED)
endif()
if(PNG_NO_CONSOLE_IO)
add_definitions(-DPNG_NO_CONSOLE_IO)
endif(PNG_NO_CONSOLE_IO)
endif()
if(PNG_NO_STDIO)
add_definitions(-DPNG_NO_STDIO)
endif(PNG_NO_STDIO)
endif()
if(PNG_DEBUG)
add_definitions(-DPNG_DEBUG)
endif(PNG_DEBUG)
endif()
if(NOT M_LIBRARY AND NOT WIN32)
add_definitions(-DPNG_NO_FLOATING_POINT_SUPPORTED)
endif(NOT M_LIBRARY AND NOT WIN32)
endif()
# NOW BUILD OUR TARGET
include_directories(${PNG_SOURCE_DIR} ${ZLIB_INCLUDE_DIR})
if(PNG_SHARED)
add_library(${PNG_LIB_NAME} SHARED ${libpng_sources})
if(MSVC)
# msvc does not append 'lib' - do it here to have consistent name
set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib")
endif()
target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY})
endif(PNG_SHARED)
endif()
if(PNG_STATIC)
# does not work without changing name
set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static)
add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources})
endif(PNG_STATIC)
if(MSVC)
# msvc does not append 'lib' - do it here to have consistent name
set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib")
endif()
endif()
if(PNG_SHARED AND WIN32)
set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL)
endif(PNG_SHARED AND WIN32)
endif()
if(PNG_TESTS)
if(PNG_TESTS AND PNG_SHARED)
# does not work with msvc due to png_lib_ver issue
add_executable(pngtest ${pngtest_sources})
target_link_libraries(pngtest ${PNG_LIB_NAME})
# add_test(pngtest ${PNG_SOURCE_DIR}/pngtest.png)
endif(PNG_TESTS)
endif()
# CREATE PKGCONFIG FILES
@@ -169,30 +191,49 @@ configure_file(${PNG_SOURCE_DIR}/scripts/libpng-config.in
${PNG_BINARY_DIR}/${PNGLIB_NAME}-config)
# SET UP LINKS
set_target_properties(${PNG_LIB_NAME} PROPERTIES
if(PNG_SHARED)
set_target_properties(${PNG_LIB_NAME} PROPERTIES
# VERSION 14.${PNGLIB_RELEASE}.1.4.0beta77
VERSION 14.${PNGLIB_RELEASE}.0
SOVERSION 14
CLEAN_DIRECT_OUTPUT 1)
if(NOT WIN32)
# that's uncool on win32 - it overwrites our static import lib...
set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
OUTPUT_NAME ${PNG_LIB_NAME}
CLEAN_DIRECT_OUTPUT 1)
endif(NOT WIN32)
# INSTALL
install_targets(/lib ${PNG_LIB_NAME})
endif()
if(PNG_STATIC)
install_targets(/lib ${PNG_LIB_NAME_STATIC})
endif(PNG_STATIC)
if(NOT WIN32)
# that's uncool on win32 - it overwrites our static import lib...
set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES
OUTPUT_NAME ${PNG_LIB_NAME}
CLEAN_DIRECT_OUTPUT 1)
endif()
endif()
# INSTALL
if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
if(PNG_SHARED)
install(TARGETS ${PNG_LIB_NAME}
RUNTIME DESTINATION bin
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib)
endif()
if(PNG_STATIC)
install(TARGETS ${PNG_LIB_NAME_STATIC}
LIBRARY DESTINATION lib
ARCHIVE DESTINATION lib)
endif()
endif()
if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
install(FILES png.h pngconf.h pngpriv.h DESTINATION include)
install(FILES png.h pngconf.h pngpriv.h DESTINATION include/${PNGLIB_NAME})
install(FILES libpng.3 libpngpf.3 DESTINATION man/man3)
install(FILES png.5 DESTINATION man/man5)
install(FILES ${PNG_BINARY_DIR}/libpng.pc DESTINATION lib/pkgconfig)
install(FILES ${PNG_BINARY_DIR}/libpng-config DESTINATION bin)
install(FILES ${PNG_BINARY_DIR}/${PNGLIB_NAME}.pc DESTINATION lib/pkgconfig)
install(FILES ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config DESTINATION bin)
endif()
if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
install(FILES libpng.3 libpngpf.3 DESTINATION man/man3)
install(FILES png.5 DESTINATION man/man5)
install(FILES ${PNG_BINARY_DIR}/libpng.pc DESTINATION lib/pkgconfig)
install(FILES ${PNG_BINARY_DIR}/libpng-config DESTINATION bin)
install(FILES ${PNG_BINARY_DIR}/${PNGLIB_NAME}.pc DESTINATION lib/pkgconfig)
install(FILES ${PNG_BINARY_DIR}/${PNGLIB_NAME}-config DESTINATION bin)
endif()
# what's with libpng.txt and all the extra files?