commit 241c068066c51e9e06adf6d45834b97a50d029cf parent c440b5cd972c61c4fb0504896beac79dc017afd8 Author: Cam Tenny <cjtenny@mit.edu> Date: Wed, 24 Oct 2012 18:52:40 -0400 Prevent extra rebuild of fs.img by keeping intermediate object files. Diffstat:
| M | Makefile | | | 6 | ++++++ |
1 file changed, 6 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile @@ -148,6 +148,12 @@ _forktest: forktest.o $(ULIB) mkfs: mkfs.c fs.h gcc -Werror -Wall -o mkfs mkfs.c +# Prevent deletion of intermediate files, e.g. cat.o, after first build, so +# that disk image changes after first build are persistent until clean. More +# details: +# http://www.gnu.org/software/make/manual/html_node/Chained-Rules.html +.PRECIOUS: %.o + UPROGS=\ _cat\ _echo\