#!/bin/bash

if [ -z "$1" ]; then
    CHOST=armv4tl-softfloat-linux-gnueabi
else
    CHOST="$1"
fi

PKGCONFDIR="/usr/${CHOST}/usr/lib/pkgconfig"

echo -e "Checking pkgconfig files in \033[1;36m${PKGCONFDIR}\033[0m"

# Change to target pkgconfig dir
cd "${PKGCONFDIR}"

# Find packages which were "fixed" by previous versions of the
# crossdev-wrappers. In the new version the prefix is prefixed
# with the SYSROOT automatically.
pcfiles=$(grep "^prefix=/usr/${CHOST}" *.pc | cut -d: -f1) 

# Find the corresponding packages and put them in a list
pkgs=""
printpkgs=""
for f in ${pcfiles}; do
    pkgs="${pkgs} $(ROOT="/usr/${CHOST}" qfile --nocolor "${f}" | cut -d' ' -f1)"
    printpkgs="${printpkgs} $(ROOT="/usr/${CHOST}" qfile "${f}" | cut -d' ' -f1)"
done

# Beautify the output by sorting it uniquely
pkgs=$(echo $pkgs | tr ' ' '\n' | sort -u | tr '\n' ' ')
printpkgs=$(echo $printpkgs | tr ' ' '\n' | sort -u)

# Print the packages...
for pkg in ${printpkgs}; do
    echo "    Need to remerge package: ${pkg}"
done

# Finally, remerge the packages
read -p "Do you really want to remerge these packages (y/n)? "
[ "$REPLY" == "y" ] \
    && emerge-${CHOST} --verbose --keep-going ${pkgs} \
    || echo "Aborting..."