user/dosbox: unblock on pmmx

user/dosbox/APKBUILD

@@ -21,6 +21,12 @@ source="https://github.com/joncampbell123/dosbox-x/archive/dosbox-x-wip-20180513
 builddir="$srcdir/dosbox-x-dosbox-x-wip-20180513-1316"
 
 build() {
+	_extra_conf=""
+
+	case $CTARGET_ARCH in
+	pmmx) _extra_conf="--disable-dynamic-x86";;
+	esac
+
 	./autogen.sh
 	./configure \
 		--build=$CBUILD \
@@ -28,7 +34,8 @@ build() {
 		--prefix=/usr \
 		--enable-debug \
 		--enable-core-inline \
-		--enable-sdl2
+		--enable-sdl2 \
+		$_extra_conf
 	make 
 }