explicit paths for deps when cross compiling

build-devkit.sh

@@ -155,6 +155,7 @@ export PATH=$PATH:$TOOLPATH/$package/bin
 if [ ! -z $CROSSBUILD ]; then
 	prefix=$INSTALLDIR/$CROSSBUILD/$package
 	CROSS_PARAMS="--build=`./config.guess` --host=$CROSSBUILD"
+	CROSS_GCC_PARAMS="--with-gmp=$CROSSPATH --with-mpfr=$CROSSPATH --with-mpc=$CROSSPATH"
 else
 	prefix=$INSTALLDIR/$package
 fi

dkarm-eabi/scripts/build-gcc.sh

@@ -64,6 +64,7 @@ then
 		--with-system-zlib \
 		--with-bugurl="http://wiki.devkitpro.org/index.php/Bug_Reports" --with-pkgversion="devkitARM release 48" \
 		$CROSS_PARAMS \
+		$CROSS_GCC_PARAMS \
 		|| { echo "Error configuring gcc"; exit 1; }
 	touch configured-gcc
 fi