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cmake_minimum_required(VERSION 3.12...3.31) |
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project( |
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zlib1-dll |
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LANGUAGES C |
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VERSION 1.3.2 |
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HOMEPAGE_URL "https://zlib.net/" |
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DESCRIPTION "zlib1.dll is the legacy DLL with zlib and minizip") |
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# ============================================================================ |
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# configuration |
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# ============================================================================ |
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if(NOT WIN32) |
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message(FATAL_ERROR "This creates zlib1.<DLL>, Nothing else") |
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endif(NOT WIN32) |
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option(ENABLE_BZIP2 "Build with bzip2 support" OFF) |
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set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS TRUE) |
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include(CheckCSourceCompiles) |
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include(CheckFunctionExists) |
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include(CheckIncludeFile) |
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include(CMakePackageConfigHelpers) |
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include(CheckTypeSize) |
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include(CPack) |
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include(GNUInstallDirs) |
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if(NOT ZLIB_CONF_WRITTEN) |
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set(CONF_OUT_FILE ${zlib1-dll_BINARY_DIR}/zconf.h.cmakein) |
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file(READ ../../zconf.h ZCONF_CONTENT LIMIT 245) |
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file(WRITE ${CONF_OUT_FILE} ${ZCONF_CONTENT}) |
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file(APPEND ${CONF_OUT_FILE} "#cmakedefine Z_PREFIX 1\n") |
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file(APPEND ${CONF_OUT_FILE} "#cmakedefine HAVE_STDARG_H 1\n") |
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file(APPEND ${CONF_OUT_FILE} "#cmakedefine HAVE_UNISTD_H 1\n") |
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file(READ ../../zconf.h ZCONF_CONTENT OFFSET 244) |
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set(FIRST_ITEM TRUE) |
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foreach(item IN LISTS ZCONF_CONTENT) |
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if(FIRST_ITEM) |
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string(APPEND OUT_CONTENT ${item}) |
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set(FIRST_ITEM FALSE) |
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else(FIRST_ITEM) |
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string(APPEND OUT_CONTENT "\;" ${item}) |
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endif(FIRST_ITEM) |
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endforeach(item IN LISTS ${ZCONF_CONTENT}) |
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file(APPEND ${CONF_OUT_FILE} ${OUT_CONTENT}) |
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set(ZLIB_CONF_WRITTEN |
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TRUE |
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CACHE BOOL "zconf.h.cmakein was created") |
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mark_as_advanced(ZLIB_CONF_WRITTEN) |
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endif(NOT ZLIB_CONF_WRITTEN) |
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if(ENABLE_BZIP2) |
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find_package(BZip2 REQUIRED) |
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endif(ENABLE_BZIP2) |
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# |
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# Check for fopen64 |
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# |
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check_function_exists(fopen64 HAVE_FOPEN64) |
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# |
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# Check to see if we have large file support |
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# |
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set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1) |
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check_type_size(off64_t OFF64_T) |
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unset(CMAKE_REQUIRED_DEFINITIONS) # clear variable |
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# |
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# Check for fseeko |
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# |
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check_function_exists(fseeko HAVE_FSEEKO) |
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# |
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# Check for stdarg.h |
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# |
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check_include_file(stdarg.h HAVE_STDARG_H) |
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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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# |
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# Check visibility attribute is supported |
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# |
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if(MSVC) |
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set(CMAKE_REQUIRED_FLAGS "-WX") |
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else(MSVC) |
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set(CMAKE_REQUIRED_FLAGS "-Werror") |
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endif(MSVC) |
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check_c_source_compiles( |
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" |
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#include <stdlib.h> |
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static void f(void) __attribute__ ((visibility(\"hidden\"))); |
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int main(void) {return 0;} |
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" |
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HAVE___ATTR__VIS_HIDDEN) |
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unset(CMAKE_COMPILE_FLAGS) |
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configure_file(${zlib1-dll_BINARY_DIR}/zconf.h.cmakein ${zlib1-dll_BINARY_DIR}/zconf.h) |
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# ============================================================================ |
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# zlib1-dll |
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# ============================================================================ |
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set(ZLIB1-DLL_PUBLIC_HDRS |
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${zlib1-dll_BINARY_DIR}/zconf.h |
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../../zlib.h |
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../minizip/crypt.h |
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../minizip/ints.h |
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../minizip/ioapi.h |
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../minizip/mztools.h |
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../minizip/unzip.h |
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../minizip/zip.h) |
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set(ZLIB1-DLL_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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set(ZLIB1-DLL_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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../../win32/zlib1.rc |
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../../zutil.c |
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../minizip/ioapi.c |
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../minizip/mztools.c |
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../minizip/unzip.c |
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../minizip/zip.c) |
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add_library(zlib1 SHARED ${ZLIB1-DLL_SRCS} |
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${ZLIB1-DLL_PUBLIC_HDRS} |
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${ZLIB1-DLL_PRIVATE_HDRS}) |
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#taget_include_directories doesn't like relative paths |
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include_directories(../../ |
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../minizip |
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${CMAKE_CURRENT_BINARY_DIR}) |
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target_compile_definitions(zlib1 |
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PRIVATE ZLIB_BUILD |
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$<$<BOOL:NOT:${HAVE_FSEEKO}>:NO_FSEEKO> |
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$<$<BOOL:${HAVE_UNISTD_H}>:HAVE_UNISTD_H=1> |
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$<$<BOOL:${HAVE___ATTR__VIS_HIDDEN}>:HAVE_HIDDEN> |
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$<$<BOOL:${MSVC}>:_CRT_SECURE_NO_DEPRECATE> |
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$<$<BOOL:${MSVC}>:_CRT_NONSTDC_NO_DEPRECATE> |
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PUBLIC $<$<BOOL:${HAVE_OFF64_T}>:_LARGEFILE64_SOURCE=1> |
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$<$<BOOL:${BZIP2_FOUND}>:HAVE_BZIP2=1> |
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$<$<BOOL:NOT:${HAVE_FOPEN64}>:USE_FILE32API=1>) |
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target_link_libraries(zlib1 |
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PUBLIC $<$<BOOL:${BZIP2_FOUND}>:BZip2::BZip2>) |
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if(NOT CYGWIN) |
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set_target_properties(zlib1 PROPERTIES |
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SOVERSION ${zlib1-dll_VERSION_MAJOR} |
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VERSION ${zlib1-dll_VERSION}) |
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endif(NOT CYGWIN) |
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set_target_properties(zlib1 PROPERTIES |
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DEFINE_SYMBOL ZLIB_DLL) |
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install( |
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TARGETS zlib1 |
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ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}" |
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RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" |
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LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}") |
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install( |
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FILES ${ZLIB1-DLL_PUBLIC_HDRS} |
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DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}") |
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install( |
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FILES ../../LICENSE |
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DESTINATION "${CMAKE_INSTALL_DOCDIR}/zlib1-dll") |
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