1 files changed, 42 insertions, 0 deletions
diff --git a/build_cross.sh b/build_cross.sh
new file mode 100755
index 0000000..997d68e
--- /dev/null
+++ b/build_cross.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+
+# Prepare the cross-compiler for the destination platform, in our
+# case i486.
+
+if test ! "$(getent group cross)"; then
+	groupadd cross
+fi
+
+if test ! "$(getent passwd cross)"; then
+	useradd -m -g cross cross
+fi
+
+# add 'cross' user as sudoer without password
+if test ! -f /etc/sudoers.d/cross; then
+	echo "cross ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers.d/cross
+fi
+
+if test ! -x /usr/local/bin/ct-ng; then
+	su - cross <<EOF
+mkdir cross
+cd cross
+git clone https://github.com/crosstool-ng/crosstool-ng.git
+cd crosstool-ng
+./bootstrap
+./configure --prefix=/usr/local
+make
+sudo make install
+cd ..
+EOF
+fi
+
+if test ! -x /home/cross/x-tools/i486-unknown-linux-gnu/bin/i486-unknown-linux-gnu-gcc; then
+	rm -rf /home/cross/{x-tools,.build,build.log,.wget-hsts,.config,.config.old}
+	cp ct-ng.config /home/cross/.config
+	CPUS=$(nproc)
+	sed -i "s/^CT_PARALLEL_JOBS=.*/CT_PARALLEL_JOBS=$CPUS/" /home/cross/.config
+	chown cross:cross /home/cross/.config
+	su - cross <<EOF
+ct-ng build
+EOF
+fi