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43743d63 MK |
1 | cmake_minimum_required(VERSION 2.4.4) |
2 | set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON) | |
3 | ||
4 | project(zlib C) | |
5 | ||
6 | if(NOT DEFINED BUILD_SHARED_LIBS) | |
7 | option(BUILD_SHARED_LIBS "Build a shared library form of zlib" ON) | |
8 | endif() | |
9 | ||
10 | include(CheckTypeSize) | |
11 | include(CheckFunctionExists) | |
12 | include(CheckIncludeFile) | |
13 | include(CheckCSourceCompiles) | |
14 | enable_testing() | |
15 | ||
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) | |
19 | ||
20 | # | |
21 | # Check to see if we have large file support | |
22 | # | |
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. | |
27 | if(HAVE_SYS_TYPES_H) | |
28 | list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H) | |
29 | endif() | |
30 | if(HAVE_STDINT_H) | |
31 | list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H) | |
32 | endif() | |
33 | if(HAVE_STDDEF_H) | |
34 | list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H) | |
35 | endif() | |
36 | check_type_size(off64_t OFF64_T) | |
37 | if(HAVE_OFF64_T) | |
38 | add_definitions(-D_LARGEFILE64_SOURCE=1) | |
39 | endif() | |
40 | set(CMAKE_REQUIRED_DEFINITIONS) # clear variable | |
41 | ||
42 | # | |
43 | # Check for fseeko | |
44 | # | |
45 | check_function_exists(fseeko HAVE_FSEEKO) | |
46 | if(NOT HAVE_FSEEKO) | |
47 | add_definitions(-DNO_FSEEKO) | |
48 | endif() | |
49 | ||
50 | # | |
51 | # Check for unistd.h | |
52 | # | |
53 | check_include_file(unistd.h Z_HAVE_UNISTD_H) | |
54 | ||
55 | if(MSVC) | |
56 | set(CMAKE_DEBUG_POSTFIX "d") | |
57 | add_definitions(-D_CRT_SECURE_NO_DEPRECATE) | |
58 | add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE) | |
59 | endif() | |
60 | ||
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) | |
65 | message(FATAL_ERROR | |
66 | "You must remove ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h " | |
67 | "from the source tree. This file is included with zlib " | |
68 | "but CMake generates this file for you automatically " | |
69 | "in the build directory.") | |
70 | endif() | |
71 | endif() | |
72 | ||
73 | configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein | |
74 | ${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY) | |
75 | include_directories(${CMAKE_CURRENT_BINARY_DIR}) | |
76 | ||
77 | ||
78 | #============================================================================ | |
79 | # zlib | |
80 | #============================================================================ | |
81 | ||
82 | set(ZLIB_PUBLIC_HDRS | |
83 | ${CMAKE_CURRENT_BINARY_DIR}/zconf.h | |
84 | zlib.h | |
85 | ) | |
86 | set(ZLIB_PRIVATE_HDRS | |
87 | crc32.h | |
88 | deflate.h | |
89 | gzguts.h | |
90 | inffast.h | |
91 | inffixed.h | |
92 | inflate.h | |
93 | inftrees.h | |
94 | trees.h | |
95 | zutil.h | |
96 | ) | |
97 | set(ZLIB_SRCS | |
98 | adler32.c | |
99 | compress.c | |
100 | crc32.c | |
101 | deflate.c | |
102 | gzclose.c | |
103 | gzlib.c | |
104 | gzread.c | |
105 | gzwrite.c | |
106 | inflate.c | |
107 | infback.c | |
108 | inftrees.c | |
109 | inffast.c | |
110 | trees.c | |
111 | uncompr.c | |
112 | zutil.c | |
113 | win32/zlib1.rc | |
114 | ) | |
115 | ||
116 | # parse the full version number from zlib.h and include in ZLIB_FULL_VERSION | |
117 | file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents) | |
118 | string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*" | |
119 | "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents}) | |
120 | ||
121 | if(MINGW) | |
122 | # This gets us DLL resource information when compiling on MinGW. | |
123 | add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj | |
124 | COMMAND windres.exe | |
125 | -D GCC_WINDRES | |
126 | -I ${CMAKE_CURRENT_SOURCE_DIR} | |
127 | -I ${CMAKE_CURRENT_BINARY_DIR} | |
128 | -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj | |
129 | -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc) | |
130 | set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj) | |
131 | endif(MINGW) | |
132 | ||
133 | add_library(zlib ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS}) | |
134 | set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL) | |
135 | ||
136 | set_target_properties(zlib PROPERTIES SOVERSION 1) | |
137 | ||
138 | if(NOT CYGWIN) | |
139 | # This property causes shared libraries on Linux to have the full version | |
140 | # encoded into their final filename. We disable this on Cygwin because | |
141 | # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll | |
142 | # seems to be the default. | |
143 | # | |
144 | # This has no effect with MSVC, on that platform the version info for | |
145 | # the DLL comes from the resource file win32/zlib1.rc | |
146 | set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION}) | |
147 | endif() | |
148 | ||
149 | if(UNIX) | |
150 | # On unix-like platforms the library is almost always called libz | |
151 | set_target_properties(zlib PROPERTIES OUTPUT_NAME z) | |
152 | elseif(BUILD_SHARED_LIBS AND WIN32) | |
153 | # Creates zlib1.dll when building shared library version | |
154 | set_target_properties(zlib PROPERTIES SUFFIX "1.dll") | |
155 | endif() | |
156 | ||
157 | if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL ) | |
158 | install(TARGETS zlib | |
159 | RUNTIME DESTINATION bin | |
160 | ARCHIVE DESTINATION lib | |
161 | LIBRARY DESTINATION lib ) | |
162 | endif() | |
163 | if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL ) | |
164 | install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION include) | |
165 | endif() | |
166 | if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL ) | |
167 | install(FILES zlib.3 DESTINATION share/man/man3) | |
168 | endif() | |
169 | ||
170 | #============================================================================ | |
171 | # Example binaries | |
172 | #============================================================================ | |
173 | ||
174 | add_executable(example example.c) | |
175 | target_link_libraries(example zlib) | |
176 | add_test(example example) | |
177 | ||
178 | add_executable(minigzip minigzip.c) | |
179 | target_link_libraries(minigzip zlib) | |
180 | ||
181 | if(HAVE_OFF64_T) | |
182 | add_executable(example64 example.c) | |
183 | target_link_libraries(example64 zlib) | |
184 | set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64") | |
185 | add_test(example64 example64) | |
186 | ||
187 | add_executable(minigzip64 minigzip.c) | |
188 | target_link_libraries(minigzip64 zlib) | |
189 | set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64") | |
190 | endif() |