MinGW/CMake Undefined Reference to ZLib
MinGW/CMake Undefined Reference to ZLib
我有一个项目,我想用CMake构建并使用MinGW编译。该项目使用 Zlib。当我使用 CMake 构建时,我没有收到任何错误,但是当我运行 MinGW Make 时,它会给出以下输出:
C:ProjectsMultiMCBuild>C:QtToolsmingw492_32binmingw32-make.exe
.
.
.
[ 50%] Linking CXX shared library ..libMultiMC_logic.dll
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x1f6c): undefined reference to 'z_inflateEnd'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x29e2): undefined reference to 'z_inflateInit2_'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x2a6d): undefined reference to 'z_get_crc_table'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x2ca7): undefined reference to 'z_inflateEnd'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x2f52): undefined reference to 'z_inflateInit2_'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x2f77): undefined reference to 'z_inflateEnd'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x3239): undefined reference to 'z_inflateInit2_'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x3317): undefined reference to 'z_inflateEnd'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x3626): undefined reference to 'z_crc32'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x371f): undefined reference to 'z_inflate'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x376a): undefined reference to 'z_crc32'
C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj):unzip.c:(.text+0x3a57): undefined reference to 'z_inflateEnd'
C:/Qt/Tools/mingw492_32/bin/../lib/gcc/i686-w64- mingw32/4.9.2/../../../../i686-w64-mingw32/bin/ld.exe: C:/Projects/MultiMCBuild/External/Install/QuaZIP/lib/libquazip.a(unzip.c.obj): bad reloc address 0x20 in section `.eh_frame'
collect2.exe: error: ld returned 1 exit status
logicCMakeFilesMultiMC_logic.dirbuild.make:3186: recipe for target 'libMultiMC_logic.dll' failed
mingw32-make[2]: * * * [libMultiMC_logic.dll] Error 1
CMakeFilesMakefile2:1806: recipe for target 'logic/CMakeFiles/MultiMC_logic.dir/all' failed
mingw32-make[1]: * * * [logic/CMakeFiles/MultiMC_logic.dir/all] Error 2
makefile:159: recipe for target 'all' failed
mingw32-make: * * * [all] Error 2
任何人都知道我能做些什么来解决这个问题?我读到代码找不到 ZLib 库,如何链接它?
编辑这里是我的CMakeLists.txt。我从 Git 项目中得到了这个。
我只是尝试生成一个小示例来重现您的错误。我从 zlib 的主页上获取了我的测试文件 http://zlib.net/zpipe.c
我最初的CMakeLists.txt
是
cmake_minimum_required(VERSION 3.4)
project(zlib_test)
set(ZLIB_TEST_SOURCES zpipe.c)
add_executable(${PROJECT_NAME} ${ZLIB_TEST_SOURCES})
我得到了同样的错误
[ 50%] Building C object CMakeFiles/zlib_test.dir/zpipe.c.o
[100%] Linking C executable zlib_test
CMakeFiles/zlib_test.dir/zpipe.c.o: In function `def':
zpipe.c:(.text+0x65): undefined reference to `deflateInit_'
zpipe.c:(.text+0xcd): undefined reference to `deflateEnd'
zpipe.c:(.text+0x135): undefined reference to `deflate'
zpipe.c:(.text+0x1cf): undefined reference to `deflateEnd'
zpipe.c:(.text+0x25d): undefined reference to `deflateEnd'
CMakeFiles/zlib_test.dir/zpipe.c.o: In function `inf':
zpipe.c:(.text+0x2eb): undefined reference to `inflateInit_'
zpipe.c:(.text+0x353): undefined reference to `inflateEnd'
zpipe.c:(.text+0x3a4): undefined reference to `inflate'
zpipe.c:(.text+0x404): undefined reference to `inflateEnd'
zpipe.c:(.text+0x476): undefined reference to `inflateEnd'
zpipe.c:(.text+0x4a6): undefined reference to `inflateEnd'
collect2: error: ld returned 1 exit status
make[2]: *** [zlib_test] Error 1
make[1]: *** [CMakeFiles/zlib_test.dir/all] Error 2
make: *** [all] Error 2
将CMakeLists.txt
更改为此表单后
cmake_minimum_required(VERSION 3.4)
project(zlib_test)
find_package(ZLIB REQUIRED)
if (ZLIB_FOUND)
include_directories(${ZLIB_INCLUDE_DIRS})
endif()
set(ZLIB_TEST_SOURCES zpipe.c)
add_executable(${PROJECT_NAME} ${ZLIB_TEST_SOURCES})
target_link_libraries(${PROJECT_NAME} ${ZLIB_LIBRARIES})
我可以编译程序。
所以你的问题是:ZLIB在你的CMakeLists.txt
中添加在哪里?至少,您需要线路find_package(ZLIB REQUIRED)
.
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