llvm: make it work with haikuporter -S

* Missing provides for all commands
* Configure script seems to ignore docDir and incldueDir, so manually
    move them in place at install step...

sys-devel/llvm/llvm-3.4.recipe

@@ -48,6 +48,7 @@ PROVIDES="
 
 REQUIRES="
 	haiku$secondaryArchSuffix >= $haikuVersion
+	lib:libstdc++$secondaryArchSuffix
 	"
 
 BUILD_REQUIRES="
@@ -79,11 +80,16 @@ BUILD()
 	# Haiku C++ requires rtti in a lot of central system components
 	# such as Mesa
 	export REQUIRES_RTTI=1
-	runConfigure ./configure --enable-optimized 
+	runConfigure ./configure --enable-optimized
 	make $jobArgs
 }
 
 INSTALL()
 {
 	make install
+
+	# It seems configure options don't work as expected ?
+	mv $prefix/include $developDir
+	mkdir -p $docDir/..
+	mv $prefix/docs $docDir
 }