如何使用 Cygwin64 和 Clang 構建 32 位應用程序？

Question

我已經成功編譯並鏈接了一些 C 代碼與 Windows+Cygwin64+Eclipse+LLVM 工具鏈。

我想構建一個 32 位版本，所以我在編譯器和 linker 中添加了-m32標志，但最終出現錯誤：

/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)

是否可以使用 64 位 Cygwin 構建 32 位應用程序？

Answer 1

您必須安裝 32 位版本的庫。 您必須安裝 package cygwin32-gcc-core才能獲取所有庫+編譯器。 然后你必須調用 gcc 為 32 位i686-pc-cygwin-gcc ，因為gcc通常是x86_64-pc-cygwin-gcc的鏈接。