[patch] add pkg_setup(), sample patch for libcxx-9999.ebuild

libcxx-9999-add-pkg_setup.ebuild.patch (text/plain), 1.30 KB, created by Yuta SATOH on 2013-07-04 11:03:51 UTC

diff --git a/libcxx-9999.ebuild b/libcxx-9999.ebuild
index abffa7b..090f462 100644
--- a/libcxx-9999.ebuild
+++ b/libcxx-9999.ebuild
@@ -28,13 +28,38 @@ fi
 IUSE="elibc_glibc +libcxxrt static-libs test"
 
 RDEPEND="libcxxrt? ( >=sys-libs/libcxxrt-0.0_p20130530[static-libs?,${MULTILIB_USEDEP}] )
-	!libcxxrt? ( sys-devel/gcc[cxx] )"
+	!libcxxrt? ( >=sys-devel/gcc-4.7.0[cxx] )"
 DEPEND="${RDEPEND}
 	test? ( sys-devel/clang )
+	|| ( sys-devel/clang >=sys-devel/gcc-4.7.0 )
 	app-arch/xz-utils"
 
 DOCS=( CREDITS.TXT )
 
+pkg_setup() {
+	if ! use libcxxrt && [[ $(tc-getCC) != *gcc* ]] ; then
+		eerror "Please set gcc, g++ to CC, CXX."
+		eerror
+		die
+	fi
+	if [[ $(gcc-version) < 4.7 ]] && [[ $(tc-getCXX) != *clang++* ]] ; then
+		if use libcxxrt && has_version sys-devel/clang ; then
+			ewarn "Because version of gcc is old, force set CC=clang, CXX=clang++."
+			ewarn
+			ewarn "If you want to compile it using gcc, please install gcc-4.7 or later."
+			ewarn "Don't forget to switch to latest gcc using gcc-config."
+
+			export CC=clang
+			export CXX=clang++
+		else
+			eerror "Please use gcc-config to switch to gcc-4.7 or later version."
+			eerror "This package requires gcc-4.7 or later version."
+			eerror
+			die
+		fi
+	fi
+}
+
 src_prepare() {
 	cp -f "${FILESDIR}/Makefile" lib/ || die
 	multilib_copy_sources