# prepare configure for cross-compilation
sed -i "s@./configure@./configure --host=$TARGET_ARCH --build=$BUILD_ARCH@" PKGBUILD

# http://lists.busybox.net/pipermail/buildroot/2017-September/203435.html
sed -i '/.\/configure/ i \  echo "gl_cv_func_getopt_gnu=yes" > config.cache' PKGBUILD
sed -i 's@./configure@./configure --cache-file=config.cache@g' PKGBUILD