ax_ruby_ext
===========

Synopsis
********

     AX_RUBY_EXT

Description
***********

Fetches the linker flags and C compiler flags for compiling and linking Ruby binary extensions.  The macro substitutes RUBY_VERSION, RUBY_EXT_INC, RUBY_EXT_LIB, RUBY_EXT_CPPFLAGS, RUBY_EXT_LDFLAGS and RUBY_EXT_DLEXT variables if Ruby executable has been found.  It also checks the same variables before trying to retrieve them from the Ruby configuration.

       RUBY_VERSION: version of the Ruby interpreter
       RUBY_EXT_INC: Ruby include directory
       RUBY_EXT_LIB: Ruby extensions destination directory
       RUBY_EXT_CPPFLAGS: C preprocessor flags to compile extensions
       RUBY_EXT_LDFLAGS: linker flags to build extensions
       RUBY_EXT_DLEXT: extensions suffix for ruby modules (e.g. "so")

Examples:

       AX_RUBY_EXT
       if test x"$RUBY" = x; then
          AC_ERROR(["cannot find Ruby"])
       fi

Source Code
***********

Download the latest version of ax_ruby_ext.m4 (http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_ruby_ext.m4) or browse the macro's revision history (http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=history;f=m4/ax_ruby_ext.m4).

License
*******

Copyright © 2011 Stanislav Sedov stas@FreeBSD.org

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.