"sum" command in coreutils-9.0 (e.g. Fedora 36) started to output a file name. As a result, "make" always detects a change of gdb-10.2.patch wrongly and re-applies it unnecessarily. Use standard input to fix it and "md5sum" to improve detection. Signed-off-by: Kazuhito Hagio <k-hagio-ab(a)nec.com&gt; --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 162c2ba..79aef17 100644 --- a/Makefile +++ b/Makefile @@ -272,7 +272,7 @@ rebuild: @if [ ! -f ${GDB}/${GDB}.patch ]; then \ touch ${GDB}/${GDB}.patch; fi @if [ -f ${GDB}.patch ] && [ -s ${GDB}.patch ] && \ - [ "`sum ${GDB}.patch`" != "`sum ${GDB}/${GDB}.patch`" ]; then \ + [ "`md5sum < ${GDB}.patch`" != "`md5sum < ${GDB}/${GDB}.patch`" ]; then \ (sh -x ${GDB}.patch ${TARGET}; patch -N -p0 -r- --fuzz=0 < ${GDB}.patch; cp ${GDB}.patch ${GDB}; cd ${GDB}; \ $(MAKE) CRASH_TARGET=${TARGET}) \ else (cd ${GDB}/gdb; $(MAKE) CRASH_TARGET=${TARGET}); fi -- 2.37.1