Compile fmt and sfml libraries also with -fPIC

fmt/Makefile

 	apt-get update && apt-get install libz-dev -y && \
 	pushd fmt && \
 	mkdir build && pushd build && \
-	CXX=$$(which c++) cmake -DCMAKE_INSTALL_PREFIX=$$PWD/fmt_out .. && \
+	CXX=$$(which c++) cmake -DCMAKE_C_FLAGS=-fPIC -DCMAKE_CXX_FLAGS=-fPIC -DCMAKE_INSTALL_PREFIX=$$PWD/fmt_out .. && \
 	make -j $$(nproc) && \
 	make install
 

sfml/Makefile

 SHELL:=/bin/bash
 
-ubuntu1804:
-	git clone https://github.com/SFML/SFML.git
-	pushd SFML && git checkout 2.5.x #  && patch -p1 < ../patch.txt
-	bash ../ubuntu1804.sh make impl
-	make package-ubuntu1804
-
 ubuntu2004:
 	git clone https://github.com/SFML/SFML.git
 	pushd SFML && git checkout 2.5.x #  && patch -p1 < ../patch.txt
 	make package-ubuntu2004
 	bash ../ubuntu2004.sh chown $$(id -u):$$(id -g) . -R  # fix permissions
 
+ubuntu1804:
+	git clone https://github.com/SFML/SFML.git
+	pushd SFML && git checkout 2.5.x #  && patch -p1 < ../patch.txt
+	bash ../ubuntu1804.sh make impl
+	make package-ubuntu1804
+
 impl:
 	# copy & paste from allegro5
 	apt-get update
 	switch-to-latest-clang
 	# static build
 	pushd SFML && \
-	cmake -DCMAKE_BUILD_TYPE=release -DCMAKE_INSTALL_PREFIX=$$PWD/sfml_static -DBUILD_SHARED_LIBS=false . && \
+	cmake -DCMAKE_C_FLAGS=-fPIC -DCMAKE_CXX_FLAGS=-fPIC -DCMAKE_BUILD_TYPE=release -DCMAKE_INSTALL_PREFIX=$$PWD/sfml_static -DBUILD_SHARED_LIBS=false . && \
 	make -j $$(nproc) && \
 	make install