From: Nobuyoshi Nakada <nobu@...>
Date: 2013-10-17T22:34:50+09:00
Subject: [ruby-core:57916] Re: cxxflags for C++ library bindings not working for Ruby 1.9.x and 2.0?

(13/10/17 22:03), Stefan Salewski wrote:
> My feeling is, that there is some problem in the handling of CXXFLAGS
> used for the C++ compiler.
> 
> CGAL code need the flag -frounding-math.
> For Ruby 1.9.3 I gave
> $CFLAGS += " -frounding-math"
> 
> in extconfig.rb, and "ruby extconfig.rb; make" was working fine.
> For Ruby 2.0 this was not working any more -- I found
> $CPPLAGS += " -frounding-math"
> working as entry in extconfig.rb. (But CPPLAGS are for preprocessor.)

Could you show the generated Makefile?

-- 
Nobu Nakada