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ClickHouse/contrib/libzlib-ng/CMakeLists.txt
proller f7c0998599 fix clang build (#353) 
* Freebsd clang3.8 compile fixes

* clean

* fix

* fix clang build
2017-01-18 02:48:01 +04:00

564 lines
19 KiB
CMake
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cmake_minimum_required(VERSION 2.8.4)
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
project(zlib C)
set(VERSION "1.2.8")
set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
set(INSTALL_INC_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Installation directory for headers")
set(INSTALL_MAN_DIR "${CMAKE_INSTALL_PREFIX}/share/man" CACHE PATH "Installation directory for manual pages")
set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_PREFIX}/share/pkgconfig" CACHE PATH "Installation directory for pkgconfig (.pc) files")
include(CheckTypeSize)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckCSourceCompiles)
include(CheckCSourceRuns)
include(CheckLibraryExists)
include(FeatureSummary)
# make sure we use an appropriate BUILD_TYPE by default, "Release" to be exact
# this should select the maximum generic optimisation on the current platform (i.e. -O3 for gcc/clang)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING
"Choose the type of build, standard options are: Debug Release RelWithDebInfo MinSizeRel."
FORCE)
add_feature_info(CMAKE_BUILD_TYPE 1 "Build type: ${CMAKE_BUILD_TYPE} (default)")
else()
add_feature_info(CMAKE_BUILD_TYPE 1 "Build type: ${CMAKE_BUILD_TYPE} (selected)")
endif()
enable_testing()
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)
#
# Options parsing
#
set(ARCH ${CMAKE_HOST_SYSTEM_PROCESSOR})
message(STATUS "Architecture: ${ARCH}")
option (ZLIB_COMPAT "Compile with zlib compatible API" OFF)
if (ZLIB_COMPAT)
add_definitions(-DZLIB_COMPAT)
set (WITH_GZFILEOP ON)
endif (ZLIB_COMPAT)
option (WITH_GZFILEOP "Compile with support for gzFile related functions" OFF)
if (WITH_GZFILEOP)
add_definitions(-DWITH_GZFILEOP)
endif (WITH_GZFILEOP)
option(WITH_OPTIM "Build with optimisation" ON)
option(WITH_NEW_QUICK_STRATEGY "Use new quick strategy for compression level 1" OFF) # this option produces corrupt gzip stream so turn it off for now.
option(WITH_NEW_MEDIUM_STRATEGY "Use new medium strategy for compression levels 4-6" ON)
option(WITH_NATIVE_INSTRUCTIONS
"Instruct the compiler to use the full instruction set on this host (gcc/clang -march=native)" OFF)
if(${CMAKE_C_COMPILER} MATCHES "icc" OR ${CMAKE_C_COMPILER} MATCHES "icpc" OR ${CMAKE_C_COMPILER} MATCHES "icl")
if(WITH_NATIVE_INSTRUCTIONS)
message(STATUS "Ignoring WITH_NATIVE_INSTRUCTIONS; not supported on this configuration")
endif()
if(CMAKE_HOST_UNIX)
if(NOT SSE2FLAG)
set(SSE2FLAG "-msse2")
endif()
if(NOT SSE4FLAG)
set(SSE4FLAG "-msse4.2")
endif()
else()
if(NOT SSE2FLAG)
set(SSE2FLAG "/arch:SSE2")
endif()
if(NOT SSE4FLAG)
set(SSE4FLAG "/arch:SSE4.2")
endif()
endif()
elseif(MSVC)
# TODO. ICC can be used through MSVC. I'm not sure if we'd ever see that combination
# (who'd use cmake from an IDE...) but checking for ICC before checking for MSVC should
# avoid mistakes.
# /Oi ?
if(NOT ${ARCH} MATCHES "AMD64")
set(SSE2FLAG "/arch:SSE2")
endif()
if(WITH_NATIVE_INSTRUCTIONS)
message(STATUS "Ignoring WITH_NATIVE_INSTRUCTIONS; not supported on this configuration")
endif()
else()
execute_process(COMMAND ${CMAKE_C_COMPILER} --version OUTPUT_VARIABLE COMPILER_VERSION)
if("${COMPILER_VERSION}" MATCHES "gcc" OR "${COMPILER_VERSION}" MATCHES "clang")
set(__GNUC__ ON)
endif()
if(WITH_NATIVE_INSTRUCTIONS)
if(__GNUC__)
set(NATIVEFLAG "-march=native")
else()
message(STATUS "Ignoring WITH_NATIVE_INSTRUCTIONS; not implemented yet on this configuration")
endif()
endif()
if(NOT NATIVEFLAG)
if(NOT SSE2FLAG)
if(__GNUC__)
set(SSE2FLAG "-msse2")
endif()
endif()
if(NOT SSE4FLAG)
if(__GNUC__)
set(SSE4FLAG "-msse4")
endif()
endif()
if(NOT PCLMULFLAG)
if(__GNUC__)
set(PCLMULFLAG "-mpclmul")
endif()
endif()
else(NOT NATIVEFLAG)
set(SSE2FLAG ${NATIVEFLAG})
set(SSE4FLAG ${NATIVEFLAG})
set(PCLMULFLAG ${NATIVEFLAG})
endif(NOT NATIVEFLAG)
endif()
add_feature_info(ZLIB_COMPAT ZLIB_COMPAT "Provide a zlib-compatible API")
add_feature_info(WITH_GZFILEOP WITH_GZFILEOP "Compile with support for gzFile-related functions")
add_feature_info(WITH_OPTIM WITH_OPTIM "Build with optimisation")
add_feature_info(WITH_NEW_QUICK_STRATEGY WITH_NEW_QUICK_STRATEGY "Use new quick strategy for compression level 1")
add_feature_info(WITH_NEW_MEDIUM_STRATEGY WITH_NEW_MEDIUM_STRATEGY "Use new medium strategy for compression levels 4-6")
#
# 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)
else()
check_type_size(_off64_t _OFF64_T)
if (HAVE__OFF64_T)
add_definitions(-D_LARGEFILE64_SOURCE=1)
endif()
endif()
set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
#
# Check for fseeko and other optional functions
#
check_function_exists(fseeko HAVE_FSEEKO)
if(NOT HAVE_FSEEKO)
add_definitions(-DNO_FSEEKO)
endif()
check_function_exists(strerror HAVE_STRERROR)
if(NOT HAVE_STRERROR)
add_definitions(-DNO_STRERROR)
endif()
#
# Check for unistd.h and stdarg.h
#
check_include_file(unistd.h Z_HAVE_UNISTD_H)
check_include_file(stdarg.h Z_HAVE_STDARG_H)
#
# Check if we can hide zlib internal symbols that are linked between separate source files using hidden
#
check_c_source_compiles(
"#define ZLIB_INTERNAL __attribute__((visibility (\"hidden\")))
int ZLIB_INTERNAL foo;
int main()
{
return 0;
}"
HAVE_ATTRIBUTE_VISIBILITY_HIDDEN FAIL_REGEX "not supported")
if(HAVE_ATTRIBUTE_VISIBILITY_HIDDEN)
add_definitions(-DHAVE_HIDDEN)
endif()
#
# Check if we can hide zlib internal symbols that are linked between separate source files using internal
#
check_c_source_compiles(
"#define ZLIB_INTERNAL __attribute__((visibility (\"internal\")))
int ZLIB_INTERNAL foo;
int main()
{
return 0;
}"
HAVE_ATTRIBUTE_VISIBILITY_INTERNAL FAIL_REGEX "not supported")
if(HAVE_ATTRIBUTE_VISIBILITY_INTERNAL)
add_definitions(-DHAVE_INTERNAL)
endif()
#
# check for __builtin_ctzl() support in the compiler
#
check_c_source_compiles(
"int main(void)
{
unsigned int zero = 0;
long test = __builtin_ctzl(zero);
(void)test;
return 0;
}"
HAVE_BUILTIN_CTZL
)
if(HAVE_BUILTIN_CTZL)
add_definitions(-DHAVE_BUILTIN_CTZL)
endif()
# Macro to check if source compiles when cross-compiling
# or runs when compiling natively
macro(check_c_source_compile_or_run source flag)
if(CMAKE_CROSSCOMPILING)
check_c_source_compiles("${source}" ${flag})
else()
check_c_source_runs("${source}" ${flag})
endif()
endmacro(check_c_source_compile_or_run)
if(MSVC)
set(CMAKE_DEBUG_POSTFIX "d")
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
include_directories(${CMAKE_CURRENT_SOURCE_DIR})
else()
#
# not MSVC, so we need to check if we have the MS-style SSE etc. intrinsics
#
if(WITH_NATIVE_INSTRUCTIONS)
set(CMAKE_REQUIRED_FLAGS "${NATIVEFLAG}")
else()
set(CMAKE_REQUIRED_FLAGS "${SSE2FLAG}")
endif()
check_c_source_compile_or_run(
"#include <immintrin.h>
int main(void)
{
__m128i zero = _mm_setzero_si128();
(void)zero;
return 0;
}"
HAVE_SSE2_INTRIN
)
if(WITH_NATIVE_INSTRUCTIONS)
set(CMAKE_REQUIRED_FLAGS "${NATIVEFLAG}")
else()
# use the generic SSE4 enabler option to check for the SSE4.2 instruction we require:
set(CMAKE_REQUIRED_FLAGS "${SSE4FLAG}")
endif()
check_c_source_compile_or_run(
"int main(void)
{
unsigned val = 0, h = 0;
__asm__ __volatile__ ( \"crc32 %1,%0\" : \"+r\" (h) : \"r\" (val) );
return (int) h;
}"
HAVE_SSE42_INTRIN
)
if(WITH_NATIVE_INSTRUCTIONS)
set(CMAKE_REQUIRED_FLAGS "${NATIVEFLAG}")
else()
# the PCLMUL instruction we use also requires an SSE4.1 instruction check for both
set(CMAKE_REQUIRED_FLAGS "${SSE4FLAG} ${PCLMULFLAG}")
endif()
check_c_source_compile_or_run(
"#include <immintrin.h>
#include <smmintrin.h>
#include <wmmintrin.h>
int main(void)
{
__m128i a = _mm_setzero_si128();
__m128i b = _mm_setzero_si128();
__m128i c = _mm_clmulepi64_si128(a, b, 0x10);
int d = _mm_extract_epi32(c, 2);
return d;
}"
HAVE_PCLMULQDQ_INTRIN
)
endif()
#
# Enable deflate_medium at level 4-6
#
if(WITH_NEW_MEDIUM_STRATEGY)
add_definitions(-DMEDIUM_STRATEGY)
endif()
#
# macro to add either the given intrinsics option to the global compiler options,
# or ${NATIVEFLAG} (-march=native) if that is appropriate and possible.
# An alternative version of this macro would take a file argument, and set ${flag}
# only for that file as opposed to ${NATIVEFLAG} globally, to limit side-effect of
# using ${flag} globally.
#
macro(add_intrinsics_option flag)
if(WITH_NATIVE_INSTRUCTIONS AND NATIVEFLAG)
if (NOT "${CMAKE_C_FLAGS} " MATCHES ".*${NATIVEFLAG} .*")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${NATIVEFLAG}")
endif()
else()
if (NOT "${CMAKE_C_FLAGS} " MATCHES ".*${flag} .*")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}")
endif()
endif()
endmacro(add_intrinsics_option)
set(ZLIB_ARCH_SRCS)
set(ARCHDIR "arch/generic")
if("${ARCH}" MATCHES "x86_64" OR "${ARCH}" MATCHES "AMD64")
set(ARCHDIR "arch/x86")
add_definitions(-DX86_64 -DX86_NOCHECK_SSE2 -DUNALIGNED_OK -DUNROLL_LESS -DX86_CPUID)
add_feature_info(SSE2 1 "Use the SSE2 instruction set, using \"${SSE2FLAG}\"")
elseif("${ARCH}" MATCHES "arm" OR "${ARCH}" MATCHES "aarch64")
set(ARCHDIR "arch/arm")
add_definitions(-DUNALIGNED_OK -DUNROLL_LESS)
else()
set(ARCHDIR "arch/x86")
add_definitions(-DX86 -DUNALIGNED_OK -DUNROLL_LESS -DX86_CPUID)
add_feature_info(SSE2 1 "Support the SSE2 instruction set, using \"${SSE2FLAG}\"")
endif()
if(WITH_OPTIM)
if(NOT ARCH MATCHES "aarch64")
set(ZLIB_ARCH_SRCS ${ZLIB_ARCH_SRCS} ${ARCHDIR}/x86.c)
endif()
if(HAVE_SSE42_INTRIN)
add_definitions(-DX86_SSE4_2_CRC_HASH)
set(ZLIB_ARCH_SRCS ${ZLIB_ARCH_SRCS} ${ARCHDIR}/insert_string_sse.c)
add_feature_info(SSE4_CRC 1 "Support CRC hash generation using the SSE4.2 instruction set, using \"${SSE4FLAG}\"")
add_intrinsics_option("${SSE4FLAG}")
if(WITH_NEW_QUICK_STRATEGY)
add_definitions(-DX86_QUICK_STRATEGY)
set(ZLIB_ARCH_SRCS ${ZLIB_ARCH_SRCS} ${ARCHDIR}/deflate_quick.c)
add_feature_info(SSE4DEFLATE 1 "Support SSE4.2-accelerated quick decompression")
endif()
endif()
if(HAVE_SSE2_INTRIN)
add_definitions(-DX86_SSE2_FILL_WINDOW)
set(ZLIB_ARCH_SRCS ${ZLIB_ARCH_SRCS} ${ARCHDIR}/fill_window_sse.c)
if(NOT ${ARCH} MATCHES "x86_64")
add_intrinsics_option("${SSE2FLAG}")
endif()
endif()
if(HAVE_PCLMULQDQ_INTRIN)
if (CMAKE_SYSTEM_PROCESSOR MATCHES "^x86")
add_definitions(-DX86_PCLMULQDQ_CRC)
endif()
set(ZLIB_ARCH_SRCS ${ZLIB_ARCH_SRCS} ${ARCHDIR}/crc_folding.c)
add_feature_info(PCLMUL_CRC 1 "Support CRC hash generation using PCLMULQDQ, using \"${SSE4FLAG} ${PCLMULFLAG}\"")
add_intrinsics_option("${PCLMULFLAG}")
if(NOT HAVE_SSE42_INTRIN)
add_intrinsics_option("${SSE4FLAG}")
endif()
endif()
endif()
message(STATUS "Architecture-specific source files: ${ZLIB_ARCH_SRCS}")
#============================================================================
# zconf.h
#============================================================================
macro(generate_cmakein input output)
execute_process(COMMAND sed "/#define ZCONF_H/ a\\\n#cmakedefine Z_HAVE_UNISTD_H\\\n#cmakedefine Z_HAVE_STDARG_H\n"
INPUT_FILE ${input}
OUTPUT_FILE ${output}
)
endmacro(generate_cmakein)
generate_cmakein( ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.in ${CMAKE_CURRENT_BINARY_DIR}/zconf.h.cmakein )
if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_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(STATUS "Renaming")
message(STATUS " ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h")
message(STATUS "to 'zconf.h.included' because this file is included with zlib")
message(STATUS "but CMake generates it automatically in the build directory.")
file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.included)
endif()
# If we're doing an out of source build and the user has a zconf.h.cmakein
# in their source tree...
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein)
message(STATUS "Renaming")
message(STATUS " ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein")
message(STATUS "to 'zconf.h.cmakeincluded' because this file is included with zlib")
message(STATUS "but CMake generates it automatically in the build directory.")
file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakeincluded)
endif()
endif()
set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib.pc)
configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein
${ZLIB_PC} @ONLY)
configure_file( ${CMAKE_CURRENT_BINARY_DIR}/zconf.h.cmakein
${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
#============================================================================
# zlib
#============================================================================
set(ZLIB_PUBLIC_HDRS
${CMAKE_CURRENT_BINARY_DIR}/zconf.h
zlib.h
)
set(ZLIB_PRIVATE_HDRS
crc32.h
deflate.h
gzguts.h
inffast.h
inffixed.h
inflate.h
inftrees.h
trees.h
zutil.h
)
set(ZLIB_SRCS
adler32.c
compress.c
crc32.c
deflate.c
deflate_fast.c
deflate_medium.c
deflate_slow.c
inflate.c
infback.c
inftrees.c
inffast.c
match.c
trees.c
uncompr.c
zutil.c
)
if (WITH_GZFILEOP)
set(ZLIB_GZFILE_SRCS
gzclose.c
gzlib.c
gzread.c
gzwrite.c
)
else (WITH_GZFILEOP)
set(ZLIB_GZFILE_SRCS
)
endif (WITH_GZFILEOP)
if(NOT MINGW AND NOT MSYS)
set(ZLIB_DLL_SRCS
win32/zlib1.rc # If present will override custom build rule below.
)
endif()
# 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})
if(MINGW OR MSYS)
# This gets us DLL resource information when compiling on MinGW.
if(NOT CMAKE_RC_COMPILER)
set(CMAKE_RC_COMPILER windres.exe)
endif()
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
COMMAND ${CMAKE_RC_COMPILER}
-D GCC_WINDRES
-I ${CMAKE_CURRENT_SOURCE_DIR}
-I ${CMAKE_CURRENT_BINARY_DIR}
-o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
-i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
set(ZLIB_DLL_SRCS ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
endif(MINGW OR MSYS)
add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_GZFILE_SRCS} ${ZLIB_ARCH_SRCS} ${ZLIB_ASMS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_GZFILE_SRCS} ${ZLIB_ARCH_SRCS} ${ZLIB_ASMS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
set_target_properties(zlib PROPERTIES SOVERSION 1)
if(NOT CYGWIN)
# This property causes shared libraries on Linux to have the full version
# encoded into their final filename. We disable this on Cygwin because
# it causes cygz-${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 ${ZLIB_FULL_VERSION})
endif()
if(UNIX)
# On unix-like platforms the library is almost always called libz
set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
if(NOT APPLE)
set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
endif()
elseif(MSYS)
# Suppress version number from shared library name
set(CMAKE_SHARED_LIBRARY_NAME_WITH_VERSION 0)
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 zlibstatic
RUNTIME DESTINATION "${INSTALL_BIN_DIR}"
ARCHIVE DESTINATION "${INSTALL_LIB_DIR}"
LIBRARY DESTINATION "${INSTALL_LIB_DIR}" )
endif()
if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION "${INSTALL_INC_DIR}")
endif()
if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
install(FILES zlib.3 DESTINATION "${INSTALL_MAN_DIR}/man3")
endif()
if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
install(FILES ${ZLIB_PC} DESTINATION "${INSTALL_PKGCONFIG_DIR}")
endif()
#============================================================================
# Example binaries
#============================================================================
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
set (CMAKE_EXE_LINKER_FLAGS "")
endif ()
add_executable(example test/example.c)
target_link_libraries(example zlib)
add_test(example example)
add_executable(minigzip test/minigzip.c)
target_link_libraries(minigzip zlib)
if(HAVE_OFF64_T)
add_executable(example64 test/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 test/minigzip.c)
target_link_libraries(minigzip64 zlib)
set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
endif()
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