我已经成功地用Windows+Cygwin64+Eclipse+LLVM工具链编译并链接了一些C代码。
我想构建一个32位版本，所以我在编译器和链接器中添加了-m32标志，但最终出现了错误：
/usr/bin/ld: cannot find crtbegin.o: No such file or directory
/usr/bin/ld: cannot find -lgcc_s
/usr/bin/ld: cannot find -lgcc
/usr/bin/ld: skipping incompatible /usr/lib/libcygwin.a when searching for -lcygwin
/usr/bin/ld: skipping incompatible /usr/lib/libcygwin.a when searching for -lcygwin
/usr/bin/ld: skipping incompatible /usr/lib/libcygwin.a when searching for -lcygwin
/usr/bin/ld: cannot find -lcygwin
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libadvapi32.a when searching for -ladvapi32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libadvapi32.a when searching for -ladvapi32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libadvapi32.a when searching for -ladvapi32
/usr/bin/ld: cannot find -ladvapi32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libshell32.a when searching for -lshell32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libshell32.a when searching for -lshell32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libshell32.a when searching for -lshell32
/usr/bin/ld: cannot find -lshell32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libuser32.a when searching for -luser32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libuser32.a when searching for -luser32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libuser32.a when searching for -luser32
/usr/bin/ld: cannot find -luser32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libkernel32.a when searching for -lkernel32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libkernel32.a when searching for -lkernel32
/usr/bin/ld: skipping incompatible /usr/lib/w32api/libkernel32.a when searching for -lkernel32
/usr/bin/ld: cannot find -lkernel32
/usr/bin/ld: cannot find crtend.o: No such file or directory
clang-8: error: linker command failed with exit code 1 (use -v to see invocation)
有可能用64位Cygwin构建一个32位的应用程序吗？
您必须安装32位版本的库。您必须安装包cygwin32-gcc-core才能获得所有库+编译器。然后您必须调用32位的gcc作为i686-pc-cygwin-gcc，因为gcc通常是到x86_64-pc-cygwin-gcc的链接。