add a huse() helper to avoid QA warnings when checking features that are not enabled

diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index 408f63deb22cde0d630e263639eb23b94029a005..9e039b72f64f492fdec492a3fc4edbabd99c5396 100644 (file)
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -1,6 +1,6 @@
 # Copyright 1999-2011 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain.eclass,v 1.472 2011/09/27 12:14:25 vapier Exp $
+# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain.eclass,v 1.473 2011/10/17 19:10:58 vapier Exp $
 #
 # Maintainer: Toolchain Ninjas <toolchain@gentoo.org>
 
@@ -765,9 +765,9 @@ toolchain_pkg_setup() {
        unset GCC_SPECS
 
        if use nocxx ; then
-               use go && ewarn 'Go requires a C++ compiler, disabled due to USE="nocxx"'
-               use objc++ && ewarn 'Obj-C++ requires a C++ compiler, disabled due to USE="nocxx"'
-               use gcj && ewarn 'GCJ requires a C++ compiler, disabled due to USE="nocxx"'
+               huse go && ewarn 'Go requires a C++ compiler, disabled due to USE="nocxx"'
+               huse objc++ && ewarn 'Obj-C++ requires a C++ compiler, disabled due to USE="nocxx"'
+               huse gcj && ewarn 'GCJ requires a C++ compiler, disabled due to USE="nocxx"'
        fi
 
        want_libssp && libc_has_ssp && \
@@ -2349,6 +2349,11 @@ is_multilib() {
        use multilib
 }
 
+huse() {
+       has $1 ${IUSE} || return 1
+       use $1
+}
+
 is_cxx() {
        gcc-lang-supported 'c++' || return 1
        ! use nocxx
@@ -2356,7 +2361,7 @@ is_cxx() {
 
 is_d() {
        gcc-lang-supported d || return 1
-       use d
+       huse d
 }
 
 is_f77() {
@@ -2376,27 +2381,26 @@ is_fortran() {
 
 is_gcj() {
        gcc-lang-supported java || return 1
-       ! use nocxx && use gcj
+       ! use nocxx && huse gcj
 }
 
 is_go() {
        gcc-lang-supported go || return 1
-       ! use nocxx && use go
+       ! use nocxx && huse go
 }
 
 is_libffi() {
-       has libffi ${IUSE} || return 1
-       use libffi
+       huse libffi
 }
 
 is_objc() {
        gcc-lang-supported objc || return 1
-       use objc
+       huse objc
 }
 
 is_objcxx() {
        gcc-lang-supported 'obj-c++' || return 1
-       ! use nocxx && use objc++
+       ! use nocxx && huse objc++
 }
 
 is_ada() {