This shouldn't be the case.
For example:
$ cat GNUmakefile
.PHONY: all
all: my.o
my.o: my.h
touch $(@)
my.h:
$ ls my.h
ls: my.h: No such file or directory
$ gmake
touch my.o
$ gmake
touch my.o
$ touch my.h
$ gmake
touch my.o
$ gmake
gmake: Nothing to be done for `all'.
$ cat GNUmakefile
.PHONY: all
all: my.o
my.o: my.h
touch $(@)
.PHONY: my.h
my.h:
$ ls my.h
my.h
$ gmake
touch my.o
$ gmake
touch my.o
IOW, things dependent upon a .PHONY will be rebuilt regardless of the dependency's
timestamp. Empty targets are treated differently.
Noel
Boris Kolpackov wrote:
Noel Yap <[EMAIL PROTECTED]> writes:
I misunderstood. When you said PHONY targets, I thought you meant it
generates ".PHONY: my_header" as well, not just an empty target.
No, gcc generates just
header.h:
And since there are no commands for this target make assumes it is
phony.
-boris
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