games-arcade/xscavenger: fix build with -native-symlinks

wrt bug #739120 with clang/llvm toolchain, it now gets past
ld/gcc missing but will fail due to traditional cpp.

Can workaround with a gcc exception: IMAKECPP=cpp

However will finally fail trivially due a lacking return
value in non-void main() that clang doesn't like.

Bug: https://bugs.gentoo.org/739120
Closes: https://bugs.gentoo.org/730814
Signed-off-by: Ionen Wolkens <sudinave@gmail.com>
Signed-off-by: Joonas Niilola <juippis@gentoo.org>

games-arcade/xscavenger/xscavenger-1.4.4-r2.ebuild

@@ -14,7 +14,7 @@ LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"
 
-BDEPEND="x11-misc/imake"
+BDEPEND=">=x11-misc/imake-1.0.8-r1"
 RDEPEND="x11-libs/libXext"
 DEPEND="${RDEPEND}"
 
@@ -33,7 +33,8 @@ src_prepare() {
 }
 
 src_configure() {
-	xmkmf || die
+	CC="$(tc-getBUILD_CC)" LD="$(tc-getLD)" \
+		IMAKECPP="${IMAKECPP:-$(tc-getCPP)}" xmkmf || die
 }
 
 src_compile() {