[Minios-devel] [UNIKRAFT PATCH 1/1] build: fix build rules that expect directories

[Florian Schmidt <florian.schmidt@xxxxxxxxx>]

These two rules running during the prepare step expect build/kconfig/ to
exist. This happens to be the case make -j1, because another rule
creates that directory before make gets to those rules. That breaks on
parallel make though, so make sure the directory is there regardless of
rule execution order.

Signed-off-by: Florian Schmidt <florian.schmidt@xxxxxxxxx>
---
 Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Makefile b/Makefile
index 8e81c64b..2588d261 100644
--- a/Makefile
+++ b/Makefile
@@ -574,6 +574,7 @@ $(KCONFIG_APP_IN) $(KCONFIG_ELIB_IN): %: %.new
        @cmp -s $^ $@; if [ $$? -ne 0 ]; then cp $^ $@; fi
 
 $(KCONFIG_APP_IN).new:
+       mkdir -p $(@D)
        @echo '# external application' > $@
 ifneq ($(CONFIG_UK_BASE),$(CONFIG_UK_APP))
        @echo 'source "$(APP_DIR)/Config.uk"' >> $@
@@ -583,6 +584,7 @@ endif
 
 # auto-generated KConfig files for including external libraries
 $(KCONFIG_ELIB_IN).new:
+       mkdir -p $(@D)
        @echo '# external libraries' > $@
        @$(foreach E,$(ELIB_DIR), \
                echo 'source "$(E)/Config.uk"' >> $@; \
-- 
2.21.0


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