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#!/usr/bin/env bash
# Copyright (C) 2015-2016 Luke Shumaker
# We wrap the programs called by xargs with `sh` because xargs only exits early
# if the status is 255, but we want to exit early for all non-zero statuses.
# We use xargs instead of `find -exec` because `-exec` won't do much of
# anything useful with the exit status.
fixup_makefiles() (
find "$@" -type f -name Makefile | while read -r filename; do
>&2 printf ' => fixup %q\n' "$filename"
{
<"$filename" sed -r \
-e "s|(/\.\.)*/config.mk|/$(realpath -ms --relative-to="$(dirname -- "$filename")" config.mk)|" \
-e '/^nested\.subdirs/d' \
-e '/^include \$\(topsrcdir\)\/build-aux\/Makefile\.tail\.mk$/d'
echo
find "$(dirname "$filename")" -mindepth 2 -maxdepth 2 -name Makefile -print0 |
xargs -r0 dirname -z -- |
xargs -r0 basename -a -z |
xargs -r0 printf 'nested.subdirs += %s\n' | sort
echo
echo 'include $(topsrcdir)/build-aux/Makefile.tail.mk'
} | cat -s | build-aux/write-ifchanged "$filename"
done
)
fixup_includes() (
rm -rf -- "$0"--includes.cache
find "$@" \( -name '*.h' -o -name '*.c' -o -name '*.gperf' -o -name '*.gperf.m4' \) -type f -print0 |
xargs -r0 sh -c "$0--includes \"\$@\" || exit 255" --
rm -rf -- "$0"--includes.cache
)
main() {
set -e
set -o pipefail
export LC_COLLATE=C
fixup_makefiles "$@"
fixup_includes "$@"
}
main "$@"
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