diff options
authorSam Ravnborg <sam@mars.(none)>2005-07-14 20:22:39 +0000
committerSam Ravnborg <sam@mars.(none)>2005-07-14 20:22:39 +0000
commitd80e22460968ec7986c82fd7d207ebe3de59e03d (patch)
parentc5f75eca120de6587e67a1951ce3e6912e2c6879 (diff)
kbuild: Don't fail if include/asm symlink exists
From: Andreas Gruenbacher <agruen@suse.de> We're having the following situation: There are user-space applications that include kernel headers directly. With a completely unconfigured /usr/src/linux tree, including most headers fails because essential files are not there: include/asm include/linux/autoconf.h include/linux/version.h So we create these files. On the other hand, we want to use /usr/src/linux as read-only source for building kernels or additional modules. Now when building a kernel with a separate output directory (O=), there is a check in the main makefile for the include/asm symlink. There is no real need for this check: if we ensure that $(objdir)/include/asm is always created as the patch does, $(srctree)/include/asm becomes irrelevant. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
1 files changed, 4 insertions, 3 deletions
diff --git a/Makefile b/Makefile
index 5d0ecf11bfa..a8d41b7d549 100644
--- a/Makefile
+++ b/Makefile
@@ -767,7 +767,7 @@ $(vmlinux-dirs): prepare-all scripts
ifneq ($(KBUILD_SRC),)
@echo ' Using $(srctree) as source for kernel'
- $(Q)if [ -h $(srctree)/include/asm -o -f $(srctree)/.config ]; then \
+ $(Q)if [ -f $(srctree)/.config ]; then \
echo " $(srctree) is not clean, please run 'make mrproper'";\
echo " in the '$(srctree)' directory.";\
/bin/false; \
@@ -779,7 +779,8 @@ endif
# prepare1 creates a makefile if using a separate output directory
prepare1: prepare2 outputmakefile
-prepare0: prepare1 include/linux/version.h include/asm include/config/MARKER
+prepare0: prepare1 include/linux/version.h $(objtree)/include/asm \
+ include/config/MARKER
ifneq ($(KBUILD_MODULES),)
$(Q)rm -rf $(MODVERDIR)
$(Q)mkdir -p $(MODVERDIR)
@@ -818,7 +819,7 @@ export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
# hard to detect, but I suppose "make mrproper" is a good idea
# before switching between archs anyway.
@echo ' SYMLINK $@ -> include/asm-$(ARCH)'
$(Q)if [ ! -d include ]; then mkdir -p include; fi;
@ln -fsn asm-$(ARCH) $@