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authorLinus Torvalds <torvalds@evo.osdl.org>2005-09-06 00:35:51 -0700
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-06 00:35:51 -0700
commitef88b7dba2b47c70037a34a599d383462bb74bd3 (patch)
treef50afe82c446cbf93893880878b97339fbdb8f49 /Documentation
parentf65e77693aa5a1cf688fc378bc6913a56f9ff7b7 (diff)
parentaaebf4332018980fef4e601d1b5a6e52dd9e9ae4 (diff)
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Merge master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kbuild/makefiles.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 2616a58a5a4b..9a1586590d82 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -872,7 +872,13 @@ When kbuild executes the following steps are followed (roughly):
Assignments to $(targets) are without $(obj)/ prefix.
if_changed may be used in conjunction with custom commands as
defined in 6.7 "Custom kbuild commands".
+
Note: It is a typical mistake to forget the FORCE prerequisite.
+ Another common pitfall is that whitespace is sometimes
+ significant; for instance, the below will fail (note the extra space
+ after the comma):
+ target: source(s) FORCE
+ #WRONG!# $(call if_changed, ld/objcopy/gzip)
ld
Link target. Often LDFLAGS_$@ is used to set specific options to ld.