Using built-in specs. COLLECT_GCC=i686-w64-mingw32-gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-w64-mingw32/4.9.2/lto-wrapper Target: i686-w64-mingw32 Configured with: /build/mingw-w64-gcc/src/gcc-4.9.2/configure --prefix=/usr --libexecdir=/usr/lib --target=i686-w64-mingw32 --enable-languages=c,lto,c++,objc,obj-c++,fortran,ada --enable-shared --enable-static --enable-threads=posix --enable-fully-dynamic-string --enable-libstdcxx-time=yes --with-system-zlib --enable-cloog-backend=isl --enable-lto --disable-dw2-exceptions --enable-libgomp --disable-multilib --enable-checking=release --disable-libssp Thread model: posix gcc version 4.9.2 (GCC) ext/extinit.o: In function `Init_ext': ext/extinit.c:12: undefined reference to `Init_bigdecimal' ext/extinit.c:13: undefined reference to `Init_continuation' ext/extinit.c:14: undefined reference to `Init_coverage' ext/extinit.c:15: undefined reference to `Init_date_core' ext/extinit.c:16: undefined reference to `Init_dbm' ext/extinit.c:17: undefined reference to `Init_digest' ext/extinit.c:18: undefined reference to `Init_bubblebabble' ext/extinit.c:19: undefined reference to `Init_md5' ext/extinit.c:20: undefined reference to `Init_rmd160' ext/extinit.c:21: undefined reference to `Init_sha1' ext/extinit.c:22: undefined reference to `Init_sha2' ext/extinit.c:23: undefined reference to `Init_etc' ext/extinit.c:24: undefined reference to `Init_fcntl' ext/extinit.c:25: undefined reference to `Init_fiber' ext/extinit.c:26: undefined reference to `Init_gdbm' ext/extinit.c:27: undefined reference to `Init_console' ext/extinit.c:28: undefined reference to `Init_nonblock' ext/extinit.c:29: undefined reference to `Init_wait' ext/extinit.c:30: undefined reference to `Init_generator' ext/extinit.c:31: undefined reference to `Init_parser' ext/extinit.c:32: undefined reference to `Init_complex' ext/extinit.c:33: undefined reference to `Init_rational' ext/extinit.c:34: undefined reference to `Init_nkf' ext/extinit.c:35: undefined reference to `Init_objspace' ext/extinit.c:36: undefined reference to `Init_openssl' ext/extinit.c:37: undefined reference to `Init_pathname' ext/extinit.c:38: undefined reference to `Init_psych' ext/extinit.c:39: undefined reference to `Init_cparse' ext/extinit.c:40: undefined reference to `Init_sizeof' ext/extinit.c:41: undefined reference to `Init_ripper' ext/extinit.c:42: undefined reference to `Init_socket' ext/extinit.c:43: undefined reference to `Init_stringio' ext/extinit.c:44: undefined reference to `Init_strscan' ext/extinit.c:45: undefined reference to `Init_thread' ext/extinit.c:46: undefined reference to `Init_tcltklib' ext/extinit.c:47: undefined reference to `Init_tkutil' ext/extinit.c:48: undefined reference to `Init_win32ole' ext/extinit.c:49: undefined reference to `Init_zlib' collect2: error: ld returned 1 exit status make[2]: *** [ruby.exe] Error 1 make[2]: *** Waiting for unfinished jobs.... ext/extinit.o: In function `Init_ext': ext/extinit.c:12: undefined reference to `Init_bigdecimal' ext/extinit.c:13: undefined reference to `Init_continuation' ext/extinit.c:14: undefined reference to `Init_coverage' ext/extinit.c:15: undefined reference to `Init_date_core' ext/extinit.c:16: undefined reference to `Init_dbm' ext/extinit.c:17: undefined reference to `Init_digest' ext/extinit.c:18: undefined reference to `Init_bubblebabble' ext/extinit.c:19: undefined reference to `Init_md5' ext/extinit.c:20: undefined reference to `Init_rmd160' ext/extinit.c:21: undefined reference to `Init_sha1' ext/extinit.c:22: undefined reference to `Init_sha2' ext/extinit.c:23: undefined reference to `Init_etc' ext/extinit.c:24: undefined reference to `Init_fcntl' ext/extinit.c:25: undefined reference to `Init_fiber' ext/extinit.c:26: undefined reference to `Init_gdbm' ext/extinit.c:27: undefined reference to `Init_console' ext/extinit.c:28: undefined reference to `Init_nonblock' ext/extinit.c:29: undefined reference to `Init_wait' ext/extinit.c:30: undefined reference to `Init_generator' ext/extinit.c:31: undefined reference to `Init_parser' ext/extinit.c:32: undefined reference to `Init_complex' ext/extinit.c:33: undefined reference to `Init_rational' ext/extinit.c:34: undefined reference to `Init_nkf' ext/extinit.c:35: undefined reference to `Init_objspace' ext/extinit.c:36: undefined reference to `Init_openssl' ext/extinit.c:37: undefined reference to `Init_pathname' ext/extinit.c:38: undefined reference to `Init_psych' ext/extinit.c:39: undefined reference to `Init_cparse' ext/extinit.c:40: undefined reference to `Init_sizeof' ext/extinit.c:41: undefined reference to `Init_ripper' ext/extinit.c:42: undefined reference to `Init_socket' ext/extinit.c:43: undefined reference to `Init_stringio' ext/extinit.c:44: undefined reference to `Init_strscan' ext/extinit.c:45: undefined reference to `Init_thread' ext/extinit.c:46: undefined reference to `Init_tcltklib' ext/extinit.c:47: undefined reference to `Init_tkutil' ext/extinit.c:48: undefined reference to `Init_win32ole' ext/extinit.c:49: undefined reference to `Init_zlib' collect2: error: ld returned 1 exit status make[2]: *** [rubyw.exe] Error 1 make[1]: *** [static] Error 2 make: *** [build-ext] Error 2