Index: Makefile.in
==================================================================
--- Makefile.in
+++ Makefile.in
@@ -41,9 +41,10 @@
 	rm -f config.log config.status
 	rm -f pkgIndex.tcl
 	rm -f Makefile
 
 mrproper: distclean
+	rm -rf __TMP__ tcc
 	rm -f configure aclocal.m4
 	rm -f config.guess config.sub install-sh
 
 .PHONY: all install clean distclean mrproper

Index: build/pre.sh
==================================================================
--- build/pre.sh
+++ build/pre.sh
@@ -2,5 +2,30 @@
 
 cd "$(dirname "$(which "$0")")/.." || exit 1
 
 # Generate configure script
 ./build/autogen.sh
+
+# Download TCC
+(
+	TCC_VERSION="0.9.26"
+	TCC_URL="http://download.savannah.gnu.org/releases/tinycc/tcc-${TCC_VERSION}.tar.bz2"
+	TCC_SHA256='521e701ae436c302545c3f973a9c9b7e2694769c71d9be10f70a2460705b6d71'
+
+	rm -rf __TMP__
+	mkdir __TMP__ || exit 1
+	cd __TMP__ || exit 1
+	wget -O tcc.tar.bz2.new "${TCC_URL}" || rm -f tcc.tar.bz2.new
+	TCC_NEW_SHA256="$(openssl sha256 < tcc.tar.bz2.new | sed 's@.*= *@@')"
+
+	if [ "${TCC_NEW_SHA256}" = "${TCC_SHA256}" ]; then
+		mv tcc.tar.bz2.new tcc.tar.bz2
+	fi
+
+	tar -xf tcc.tar.bz2
+	rm -f tcc.tar.bz2
+
+	rm -rf ../tcc
+	mkdir ../tcc || exit 1
+	mv */* ../tcc/
+)
+rm -rf __TMP__