#!/bin/bash

# Convenience wrapper to set CROSS_COMPILE variable to musl-cross-make pathname

# using "mcm" symlink to musl-cross-make output directory.

# Convenience wrapper to set CROSS_COMPILE variable from short name using "ccc"

# symlink (Cross cc) to directory of cross compilers named $TARGET-*-cross.

# Tested with musl-cross-make output directory.

# Usage: ./cross.sh TARGET ./mkroot.sh

# Usage: ./cross.sh TARGET make defconfig toybox_clean root

# With no arguments, lists available targets.

# Use target "all" to iterate through all targets.

MCM="$(dirname "$(readlink -f "$0")")"/mcm

if [ ! -d "$MCM" ]

CCC="$(dirname "$(readlink -f "$0")")"/ccc

if [ ! -d "$CCC" ]

then

echo "Create symlink 'mcm' to musl-cross-make output directory"

echo "Create symlink 'ccc' to cross compiler directory"

exit 1

fi

# Display target list?

list()

{

ls "$MCM" | sed 's/-.*//' | sort -u | xargs

ls "$CCC" | sed 's/-.*//' | sort -u | xargs

}

[ $# -eq 0 ] && list && exit

# Call command with CROSS_COMPILE= as its first argument

Y=$(readlink -f "$MCM"/$X-*cross)

Y=$(readlink -f "$CCC"/$X-*cross)

X=$(basename "$Y")

X="$Y/bin/${X/-cross/-}"

[ ! -e "${X}cc" ] && echo "${X}cc not found" && exit 1