Issue #14448 has been updated by shyouhei (Shyouhei Urabe). Thank you. It seems the problem is autoreconf. I guess it clobbers aclocal.m4 file. Hang on, I think I can fix it. ---------------------------------------- Bug #14448: Build Failure - MinGW gcc 7.3.0 ~ svn 62220 - RUBY_CHECK_VA_COPY https://bugs.ruby-lang.org/issues/14448#change-70209 * Author: MSP-Greg (Greg L) * Status: Feedback * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.6.0dev (2018-02-05 trunk 62224) [x64-mingw32] * Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN ---------------------------------------- Seem to be having build failures with MinGW / gcc 7.3.0. Log shown below: ``` ==> Starting build()... ruby 2.6.0dev 2018-02-05 62230 configure: loading site script /etc/config.site ../ruby/configure: line 15109: syntax error near unexpected token `va_copy,' ../ruby/configure: line 15109: ` RUBY_CHECK_VA_COPY(va_copy, va_copy((dst),(src)))' ==> ERROR: A failure occurred in build(). Aborting... Command exited with code 1 if "%TEST_SCRIPT%" NEQ "done ``` Thanks, Greg -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>