racket: do not define function conditionally

srcpkgs/racket/template

@@ -21,17 +21,22 @@ nostrip=yes
 patch_args="-Np2"
 
 if [ "$CROSS_BUILD" ]; then
-	_chezscheme_path="${XBPS_BUILDDIR}/${wrksrc}/${build_wrksrc}"
-
-	configure_args+=" --enable-racket=/usr/bin/racket
-	 --enable-scheme=${_chezscheme_path}"
 	hostmakedepends+=" racket sqlite-devel"
+fi
 
+pre_configure() {
+	if [ "$CROSS_BUILD" ]; then
+		configure_args+=" --enable-racket=/usr/bin/racket
+		 --enable-scheme=${wrksrc}/src"
+	fi
+}
+
+pre_build() {
 	# Build ChezScheme for the host so we can use it to build Racket
 	# Using "--enable-racket=auto" above selects the wrong compiler toolchain
-	pre_build() {
+	if [ "$CROSS_BUILD" ]; then
 		(
-		cd ${_chezscheme_path}/ChezScheme
+		cd ChezScheme
 
 		# If this builds the wrong arch, Racket's automatic
 		# arch detection for the ChezScheme build has failed.
@@ -49,8 +54,8 @@ if [ "$CROSS_BUILD" ]; then
 		    ./configure --disable-curses --disable-x11
 		make
 		)
-	}
-fi
+	fi
+}
 
 post_install() {
 	vlicense LICENSE-libscheme.txt