[PATCH] [1/5] kbuild: Fix ld-option Makefile macro to really work

From: Andi Kleen
Date: Mon Sep 14 2009 - 16:18:47 EST



Needed for the next patch

Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>

---
scripts/Kbuild.include | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

Index: linux-2.6.31-rc1-ak/scripts/Kbuild.include
===================================================================
--- linux-2.6.31-rc1-ak.orig/scripts/Kbuild.include
+++ linux-2.6.31-rc1-ak/scripts/Kbuild.include
@@ -83,11 +83,12 @@ TMPOUT := $(if $(KBUILD_EXTMOD),$(firstw
# is automatically cleaned up.
try-run = $(shell set -e; \
TMP="$(TMPOUT).$$$$.tmp"; \
+ TMPO="$(TMPOUT).$$$$.o"; \
if ($(1)) >/dev/null 2>&1; \
then echo "$(2)"; \
else echo "$(3)"; \
fi; \
- rm -f "$$TMP")
+ rm -f "$$TMP" "$$TMPO")

# as-option
# Usage: cflags-y += $(call as-option,-Wa$(comma)-isa=foo,)
@@ -133,7 +134,7 @@ cc-ifversion = $(shell [ $(call cc-versi
# ld-option
# Usage: ldflags += $(call ld-option, -Wl$(comma)--hash-style=both)
ld-option = $(call try-run,\
- $(CC) $(1) -nostdlib -xc /dev/null -o "$$TMP",$(1),$(2))
+ $(CC) /dev/null -c -o "$$TMPO" ; $(LD) $(1) "$$TMPO" -o "$$TMP",$(1),$(2))

######

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