[Docker] Save results in scratch image

Dockerfile

@@ -0,0 +1,19 @@
+FROM wiiulegacy/core:0.1
+
+MAINTAINER Maschell <maschell@gmx.de>
+
+COPY --from=wiiulegacy/dynamic_libs:0.1 /artifacts $DEVKITPRO/portlibs
+
+RUN git clone https://github.com/Maschell/libutils -b master && cd libutils && git checkout v0.1
+
+WORKDIR libutils
+
+RUN make && \
+	find $DEVKITPRO/portlibs -maxdepth 3 -type f -delete && \
+	make install && \
+	cp -r ${DEVKITPRO}/portlibs /artifacts
+
+WORKDIR /artifacts
+
+FROM scratch
+COPY --from=0 /artifacts /artifacts

README.md

@@ -60,6 +60,14 @@ make && make install
 - Application needs to be loaded from the [homebrew_launcher](https://github.com/dimok789/homebrew_launcher)
 - [dynamic_libs](https://github.com/Maschell/dynamic_libs/tree/lib) for access to the functions.
 
+# Use the prebuilt files from a Docker image.
+The image `wiiulegacy/libutils` on [Docker Hub](https://hub.docker.com/r/wiiulegacy/libutils/) provides a prebuilt library in the `/artifacts` directory. Copy it into your DevkitPPC portlibs folder.  
+
+Example:  
+```
+COPY --from=wiiulegacy/libutils:0.1 /artifacts $DEVKITPRO/portlibs
+```
+
 # Credits (TODO)
 
 - Serveral users

source/fs/sd_fat_devoptab.cpp

@@ -30,6 +30,7 @@
 #include <stdio.h>
 #include <dynamic_libs/fs_functions.h>
 #include <dynamic_libs/os_functions.h>
+#include <sys/iosupport.h>
 
 #include "disc_io.h"
 #include "FSOSUtils.h"