gentoo-overlay/sys-devel/gcc-apple/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <herd>prefix</herd>
  <use>
    <flag name="multislot">Allow for SLOTs to include minor version (3.3.4
      instead of just 3.3)</flag>
    <flag name="objc">Build support for the Objective C code language</flag>
    <flag name="objc++">Build support for the Objective C++ language</flag>
    <flag name="regression-test">Run the testsuite and install the results (requires FEATURES=test)</flag>
  </use>
</pkgmetadata>