1
cmake_minimum_required(VERSION 2.4.4)
2
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
6
if(NOT DEFINED BUILD_SHARED_LIBS)
7
option(BUILD_SHARED_LIBS "Build a shared library form of zlib" ON)
10
include(CheckTypeSize)
11
include(CheckFunctionExists)
12
include(CheckIncludeFile)
13
include(CheckCSourceCompiles)
16
check_include_file(sys/types.h HAVE_SYS_TYPES_H)
17
check_include_file(stdint.h HAVE_STDINT_H)
18
check_include_file(stddef.h HAVE_STDDEF_H)
21
# Check to see if we have large file support
23
set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
24
# We add these other definitions here because CheckTypeSize.cmake
25
# in CMake 2.4.x does not automatically do so and we want
26
# compatibility with CMake 2.4.x.
28
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
31
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
34
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
36
check_type_size(off64_t OFF64_T)
38
add_definitions(-D_LARGEFILE64_SOURCE=1)
40
set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
45
check_function_exists(fseeko HAVE_FSEEKO)
47
add_definitions(-DNO_FSEEKO)
53
check_include_file(unistd.h Z_HAVE_UNISTD_H)
56
set(CMAKE_DEBUG_POSTFIX "d")
57
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
58
add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
61
if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
62
# If we're doing an out of source build and the user has a zconf.h
63
# in their source tree...
64
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
66
"You must remove ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h "
67
"from the source tree. This file is included with zlib "
68
"but CMake generates this file for you automatically "
69
"in the build directory.")
73
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein
74
${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
75
include_directories(${CMAKE_CURRENT_BINARY_DIR})
78
#============================================================================
80
#============================================================================
83
${CMAKE_CURRENT_BINARY_DIR}/zconf.h
116
set(ZLIB_SRCS ${ZLIB_SRCS}
117
win32/zlib1.rc # If present will override custom build rule below.
121
# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
122
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
123
string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*"
124
"\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
127
# This gets us DLL resource information when compiling on MinGW.
128
if(NOT CMAKE_RC_COMPILER)
129
SET(CMAKE_RC_COMPILER windres.exe)
132
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
133
COMMAND ${CMAKE_RC_COMPILER}
135
-I ${CMAKE_CURRENT_SOURCE_DIR}
136
-I ${CMAKE_CURRENT_BINARY_DIR}
137
-o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
138
-i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
139
set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
142
add_library(zlib ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
143
set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
145
set_target_properties(zlib PROPERTIES SOVERSION 1)
148
# This property causes shared libraries on Linux to have the full version
149
# encoded into their final filename. We disable this on Cygwin because
150
# it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
151
# seems to be the default.
153
# This has no effect with MSVC, on that platform the version info for
154
# the DLL comes from the resource file win32/zlib1.rc
155
set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
159
# On unix-like platforms the library is almost always called libz
160
set_target_properties(zlib PROPERTIES OUTPUT_NAME z)
161
elseif(BUILD_SHARED_LIBS AND WIN32)
162
# Creates zlib1.dll when building shared library version
163
set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
166
if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
168
RUNTIME DESTINATION bin
169
ARCHIVE DESTINATION lib
170
LIBRARY DESTINATION lib )
172
if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
173
install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION include)
175
if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
176
install(FILES zlib.3 DESTINATION share/man/man3)
179
#============================================================================
181
#============================================================================
183
add_executable(example test/example.c)
184
target_link_libraries(example zlib)
185
add_test(example example)
187
add_executable(minigzip test/minigzip.c)
188
target_link_libraries(minigzip zlib)
191
add_executable(example64 test/example.c)
192
target_link_libraries(example64 zlib)
193
set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
194
add_test(example64 example64)
196
add_executable(minigzip64 test/minigzip.c)
197
target_link_libraries(minigzip64 zlib)
198
set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")