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check_include_file(sys/types.h HAVE_SYS_TYPES_H)
check_include_file(stdint.h HAVE_STDINT_H)
check_include_file(stddef.h HAVE_STDDEF_H)
#
# Check to see if we have large file support
#
set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
# We add these other definitions here because CheckTypeSize.cmake
# in CMake 2.4.x does not automatically do so and we want
# compatibility with CMake 2.4.x.
if(HAVE_SYS_TYPES_H)
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
endif()
if(HAVE_STDINT_H)
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
endif()
if(HAVE_STDDEF_H)
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
endif()
check_type_size(off64_t OFF64_T)
if(HAVE_OFF64_T)
add_definitions(-D_LARGEFILE64_SOURCE=1)
endif()
set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
#
# Check for fseeko
#
check_function_exists(fseeko HAVE_FSEEKO)
if(NOT HAVE_FSEEKO)
add_definitions(-DNO_FSEEKO)
endif()
#
# Check for unistd.h
#
check_include_file(unistd.h Z_HAVE_UNISTD_H)
if(MSVC)
set(CMAKE_DEBUG_POSTFIX "d")
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
endif()
if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
# If we're doing an out of source build and the user has a zconf.h
# in their source tree...
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
message(FATAL_ERROR
"You must remove ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h "
"from the source tree. This file is included with zlib "
"but CMake generates this file for you automatically "
"in the build directory.")
endif()
endif()
#configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zconf.in.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h @ONLY)
include_directories(${CMAKE_CURRENT_SOURCE_DIR})
#============================================================================
# zlib
#============================================================================
set(ZLIB_PUBLIC_HDRS
${CMAKE_CURRENT_SOURCE_DIR}/zconf.h
zlib.h
)
set(ZLIB_PRIVATE_HDRS
crc32.h deflate.h inffast.h inffixed.h inflate.h inftrees.h trees.h zconf.h zlib.h zutil.h
)
set(ZLIB_SRCS
adler32.c compress.c crc32.c deflate.c inffast.c inflate.c inftrees.c trees.c zutil.c
)
# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*"
"\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
add_library(zlib STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL COMPILE_FLAGS "${EXTRA_COMPILE_FLAGS}")
set_target_properties(zlib PROPERTIES SOVERSION 1)
if(NOT CYGWIN)
# This property causes shared libraries on Linux to have the full version
# encoded into their final filename. We disable this on Cygwin because
# it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
# seems to be the default.
#
# This has no effect with MSVC, on that platform the version info for
# the DLL comes from the resource file win32/zlib1.rc
set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
endif()
if(UNIX)
# On unix-like platforms the library is almost always called libz
set_target_properties(zlib PROPERTIES OUTPUT_NAME z)
elseif(BUILD_SHARED_LIBS AND WIN32)
# Creates zlib1.dll when building shared library version
set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
endif()
#if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
# install(TARGETS zlib
# RUNTIME DESTINATION bin
# ARCHIVE DESTINATION lib
# LIBRARY DESTINATION lib )
#endif()
#if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
# install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION include)
#endif()
#if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
# install(FILES zlib.3 DESTINATION share/man/man3)
#endif()
#============================================================================
# Example binaries
#============================================================================
#add_executable(example example.c)
#target_link_libraries(example zlib)
#add_test(example example)
#
#add_executable(minigzip minigzip.c)
#target_link_libraries(minigzip zlib)
#
#if(HAVE_OFF64_T)
# add_executable(example64 example.c)
# target_link_libraries(example64 zlib)
# set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
# add_test(example64 example64)
#
# add_executable(minigzip64 minigzip.c)
# target_link_libraries(minigzip64 zlib)
# set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
#endif()
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