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24226419ed
The CMakeLists file for the static zlib checks for presence of
unistd.h, but it doesn't properly define HAVE_UNISTD_H if it's found.
This change adds the necessary preprocessor definition if unistd.h is
found.
Upstream zlib handles this with by configuring zconf.h with CMake:
cacf7f1d4e/zconf.h.cmakein (L11)
Dolphin's static version of zlib doesn't do this, which is why setting
Z_HAVE_UNISTD_H in zlib's CMakeLists.txt isn't enough.
This probably wasn't noticed since because most *nix systems will use
the shared zlib. Force use of the static zlib (comment out
find_package(ZLIB) in the root CMakeLists.txt) and you'll see implicit
function declaration warnings during its compilation.
95 lines
2.0 KiB
CMake
95 lines
2.0 KiB
CMake
project(zlib C)
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include(CheckTypeSize)
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include(CheckFunctionExists)
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include(CheckIncludeFile)
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include(CheckCSourceCompiles)
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check_include_file(sys/types.h HAVE_SYS_TYPES_H)
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check_include_file(stdint.h HAVE_STDINT_H)
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check_include_file(stddef.h HAVE_STDDEF_H)
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# Check to see if we have large file support
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set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
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# We add these other definitions here because CheckTypeSize.cmake
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# in CMake 2.4.x does not automatically do so and we want
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# compatibility with CMake 2.4.x.
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if(HAVE_SYS_TYPES_H)
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list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
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endif()
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if(HAVE_STDINT_H)
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list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
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endif()
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if(HAVE_STDDEF_H)
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list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
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endif()
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check_type_size(off64_t OFF64_T)
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if(HAVE_OFF64_T)
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add_definitions(-D_LARGEFILE64_SOURCE=1)
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endif()
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set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
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# Check for fseeko
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check_function_exists(fseeko HAVE_FSEEKO)
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if(NOT HAVE_FSEEKO)
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add_definitions(-DNO_FSEEKO)
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endif()
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#
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# Check for unistd.h
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#
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check_include_file(unistd.h HAVE_UNISTD_H)
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if(HAVE_UNISTD_H)
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add_definitions(-DHAVE_UNISTD_H)
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endif()
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if(MSVC)
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add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
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add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
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endif()
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#============================================================================
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# zlib
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#============================================================================
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set(ZLIB_PUBLIC_HDRS
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zconf.h
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zlib.h
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)
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set(ZLIB_PRIVATE_HDRS
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crc32.h
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deflate.h
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gzguts.h
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inffast.h
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inffixed.h
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inflate.h
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inftrees.h
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trees.h
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zutil.h
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)
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set(ZLIB_SRCS
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adler32.c
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compress.c
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crc32.c
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deflate.c
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gzclose.c
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gzlib.c
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gzread.c
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gzwrite.c
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inflate.c
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infback.c
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inftrees.c
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inffast.c
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trees.c
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uncompr.c
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zutil.c
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)
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add_library(z STATIC ${ZLIB_SRCS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
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add_library(ZLIB::ZLIB ALIAS z)
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target_include_directories(z
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PUBLIC
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${CMAKE_CURRENT_SOURCE_DIR}
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)
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