[Skiboot] [PATCH] gard: Fix Makefile race condition

[Patrick Williams]

Commit fd599965 added some dependencies in 'external/pflash'
for libflash files that are created via symlink.  Replicate
that same behavior in 'external/gard' to prevent race conditions
where we attempt to compile files from libflash before they are
symlink'd.

Signed-off-by: Patrick Williams <patrick at stwcx.xyz>
---
 external/gard/rules.mk | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/external/gard/rules.mk b/external/gard/rules.mk
index dfe93d5..3a7f6d9 100644
--- a/external/gard/rules.mk
+++ b/external/gard/rules.mk
@@ -2,7 +2,9 @@
 
 override CFLAGS += -O2 -Wall -Werror -I.
 OBJS      = version.o gard.o
-LIBFLASH_OBJS     += libflash-file.o libflash-libflash.o libflash-libffs.o libflash-ecc.o libflash-blocklevel.o
+LIBFLASH_FILES    := libflash.c libffs.c ecc.c blocklevel.c file.c
+LIBFLASH_OBJS     := $(addprefix libflash-, $(LIBFLASH_FILES:.c=.o))
+LIBFLASH_SRC      := $(addprefix libflash/,$(LIBFLASH_FILES))
 OBJS     += $(LIBFLASH_OBJS)
 OBJS     += common-arch_flash.o
 EXE       = gard
@@ -24,6 +26,8 @@ version.c: make_version.sh .version
 %.o : %.c
 	$(CC) $(CFLAGS) -c $< -o $@
 
+$(LIBFLASH_SRC): | links
+
 $(LIBFLASH_OBJS): libflash-%.o : libflash/%.c
 	$(CC) $(CFLAGS) -c $< -o $@
 
-- 
2.7.3