asterisk/build_tools/make_buildopts_h

#!/bin/sh

GREP=${GREP:-grep}
MD5=${MD5:-md5sum}

cat << END
/*
 * buildopts.h
 * Automatically generated
 */

END

if ${GREP} "AST_DEVMODE" makeopts | ${GREP} -q "yes"
then
	echo "#define AST_DEVMODE 1"
	# AST_DEVMODE is no longer an API/ABI affecting option so it no longer
	# gets added to BUILDOPTS.
fi

TMP=`${GREP} -e "^MENUSELECT_CFLAGS" menuselect.makeopts | sed 's/MENUSELECT_CFLAGS\=//g' | sed 's/-D//g'`
for x in ${TMP}; do
	if test "${x}" = "AO2_DEBUG" \
			-o "${x}" = "BETTER_BACKTRACES" \
			-o "${x}" = "BUILD_NATIVE" \
			-o "${x}" = "COMPILE_DOUBLE" \
			-o "${x}" = "DEBUG_CHAOS" \
			-o "${x}" = "DEBUG_SCHEDULER" \
			-o "${x}" = "DETECT_DEADLOCKS" \
			-o "${x}" = "DONT_OPTIMIZE" \
			-o "${x}" = "DUMP_SCHEDULER" \
			-o "${x}" = "LOTS_OF_SPANS" \
			-o "${x}" = "MALLOC_DEBUG" \
			-o "${x}" = "RADIO_RELAX" \
			-o "${x}" = "REBUILD_PARSERS" \
			-o "${x}" = "REF_DEBUG" \
			-o "${x}" = "USE_HOARD_ALLOCATOR" ; then
		# These options are only for specific sources and have no effect on public ABI.
		# Keep them out of buildopts.h so ccache does not invalidate all sources.
		continue
	fi

	echo "#define ${x} 1"
	if test "${x}" = "LOW_MEMORY" ; then
		# LOW_MEMORY isn't an ABI affecting option but it is used in many sources
		# so it gets defined globally but is not included in AST_BUILTOPTS.
		continue
	fi
	if test "x${BUILDOPTS}" != "x" ; then
		BUILDOPTS="${BUILDOPTS}, ${x}"
	else
		BUILDOPTS="${x}"
	fi
done

BUILDSUM=`echo ${BUILDOPTS} | ${MD5} | cut -c1-32`

echo "#define AST_BUILDOPT_SUM \"${BUILDSUM}\""
echo "#define AST_BUILDOPTS \"${BUILDOPTS}\""