Please backport r45378 (#9658).
Updated by nagachika (Tomoyuki Chikanaga) over 5 years ago
- Status changed from Open to Closed
- % Done changed from 0 to 100
Applied in changeset r46402.
* configure.in: Fix a build problem with clang and --with-opt-dir. If ruby is configured with --with-opt-dir=dir when using clang as compiler, a warning `clang: warning: argument unused during compilation: '-I dir'` is emitted almost every time clang compiles a file. Unfortunately, RUBY_CHECK_PRINTF_PREFIX takes any output from the compiler as fatal error, and the check thus fails due to the warning. This is an attempt to fix the problem by adding a flag -Qunused-arguments to CFLAGS locally in the function to suppress the warning. [ruby-dev:48062] [Bug #9658] [Fixes GH-571] https://github.com/ruby/ruby/pull/571