ruby-1.9.3-p327 build fails

[reneruiz]

$  brew --config
HOMEBREW_VERSION: 0.9.4
ORIGIN: https://github.com/mxcl/homebrew.git
HEAD: 30cfe7f1c6a6c2becf75c2739f152d13c69c1c65
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
CPU: dual-core 64-bit penryn
OS X: 10.8.2-x86_64
CLT: 4.6.0.0.1.1358221012
LLVM-GCC: build 2336
Clang: 4.2 build 425
X11: 2.7.4 => /opt/X11
System Ruby: 1.8.7-358
Perl: /usr/bin/perl
Python: /usr/bin/python
Ruby: /Users/reneruiz/.rbenv/shims/ruby

I installed readline before ruby-build as the Wiki suggested:

brew install readline ruby-build
env CONFIGURE_OPTS=--with-readline-dir=`brew --prefix readline` rbenv install 1.9.3-p327

but the build continues to fail

Downloading yaml-0.1.4.tar.gz...
-> http://dqw8nmjcqpjn7.cloudfront.net/36c852831d02cf90508c29852361d01b
Installing yaml-0.1.4...
Installed yaml-0.1.4 to /Users/reneruiz/.rbenv/versions/1.9.3-p327

Downloading ruby-1.9.3-p327.tar.gz...
-> http://dqw8nmjcqpjn7.cloudfront.net/96118e856b502b5d7b3a4398e6c6e98c
Installing ruby-1.9.3-p327...

BUILD FAILED

Inspect or clean up the working tree at /var/folders/gr/tcmj3sp50tsdx86_9x83vws00000gn/T/ruby-build.20130211194333.48765
Results logged to /var/folders/gr/tcmj3sp50tsdx86_9x83vws00000gn/T/ruby-build.20130211194333.48765.log

Last 10 log lines:
compiling regenc.c
compiling regerror.c
compiling regexec.c
compiling regparse.c
regparse.c:582:15: error: implicit conversion loses integer precision: 'st_index_t' (aka 'unsigned long') to 'int' [-Werror,-Wshorten-64-to-32]
    return t->num_entries;
    ~~~~~~ ~~~^~~~~~~~~~~
1 error generated.
make: *** [regparse.o] Error 1
make: *** Waiting for unfinished jobs....

Seeing same error when running

CONFIGURE_OPTS="--with-openssl-dir=`brew --prefix openssl`" rbenv install 1.9.3-p327

[jvrmaia]

@reneruiz look this #286

[jeremy]

Problem is that Ruby tries to be helpful and pick a compiler for you. It looks for gcc-4.2 first, which Apple provides as a symlink to its LLVM-backed compiler. Not GCC at all! Try adding --with-clang or --without-gcc to your CONFIGURE_OPTS to work around.

[timurvafin]

Guys,

Same for me on fresh osx 10.8.2, command line tools, brew's apple-gcc42.
Work around is: CC=gcc rbenv install 1.9.3-p385