btrfs-progs: Fix automatic prerequisite generation

Commit Message

David Sterba July 8, 2013, 5:09 p.m. UTC

On Mon, Jul 08, 2013 at 06:46:07PM +0200, David Sterba wrote:
> On Sat, Jul 06, 2013 at 05:22:31PM +0900, Kusanagi Kouichi wrote:
> > Some files don't compile because of insufficient prerequisite.
> > 
> > $ make btrfs
> > ...
> >     [CC]     btrfs.o
> > btrfs.c:24:21: fatal error: version.h: No such file or directory
> >  #include "version.h"
> >                      ^
> > compilation terminated.
> > make: *** [btrfs.o] Error 1
> 
> Works great, thanks. I've noticed that DEPFLAGS is now unused and
> removed it.

Two more small things: the files were previously named .something.o.d and
now they're something.d .

* .gitignore needs to be updated
* I'd prefer to keep the suffix .o.d, the leading . has go away due to
  the macro tricks

I'll fold the following patch if you don't mind


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Comments

Kusanagi Kouichi July 10, 2013, 2:06 a.m. UTC | #1

On 2013-07-08 19:09:25 +0200, David Sterba wrote:
> On Mon, Jul 08, 2013 at 06:46:07PM +0200, David Sterba wrote:
> > On Sat, Jul 06, 2013 at 05:22:31PM +0900, Kusanagi Kouichi wrote:
> > > Some files don't compile because of insufficient prerequisite.
> > > 
> > > $ make btrfs
> > > ...
> > >     [CC]     btrfs.o
> > > btrfs.c:24:21: fatal error: version.h: No such file or directory
> > >  #include "version.h"
> > >                      ^
> > > compilation terminated.
> > > make: *** [btrfs.o] Error 1
> > 
> > Works great, thanks. I've noticed that DEPFLAGS is now unused and
> > removed it.
> 
> Two more small things: the files were previously named .something.o.d and
> now they're something.d .
> 
> * .gitignore needs to be updated
> * I'd prefer to keep the suffix .o.d, the leading . has go away due to
>   the macro tricks
> 
> I'll fold the following patch if you don't mind

Looks good to me. Thanks.

> --- a/.gitignore
> +++ b/.gitignore
> @@ -1,6 +1,6 @@
>  *.o
>  *.static.o
> -.*.o.d
> +*.o.d
>  version.h
>  version
>  man/*.gz
> diff --git a/Makefile b/Makefile
> index 70880bc..849e3fe 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -76,8 +76,8 @@ else
>         check = true
>  endif
> 
> -%.d: %.c
> -       $(Q)$(CC) -MM -MG -MF $@ -MT $(@:.d=.o) -MT $(@:.d=.static.o) -MT $@ $(AM_CFLAGS) $(CFLAGS) $<
> +%.o.d: %.c
> +       $(Q)$(CC) -MM -MG -MF $@ -MT $(@:.o.d=.o) -MT $(@:.o.d=.static.o) -MT $@ $(AM_CFLAGS) $(CFLAGS) $<
> 
>  .c.o:
>         $(Q)$(check) $<
> @@ -186,7 +186,7 @@ install-man:
> 
>  clean :
>         @echo "Cleaning"
> -       $(Q)rm -f $(progs) cscope.out *.o *.d btrfs-convert btrfs-image btrfs-select-super \
> +       $(Q)rm -f $(progs) cscope.out *.o *.o.d btrfs-convert btrfs-image btrfs-select-super \
>               btrfs-zero-log btrfstune dir-test ioctl-test quick-test send-test btrfsck \
>               btrfs.static mkfs.btrfs.static btrfs-calc-size \
>               version.h \
> @@ -205,5 +205,5 @@ install: $(libs) $(progs) install-man
>         $(INSTALL) -m644 $(headers) $(DESTDIR)$(incdir)
> 
>  ifneq ($(MAKECMDGOALS),clean)
> --include $(objects:.o=.d) $(cmd-objects:.o=.d) $(subst .btrfs,, $(filter-out btrfsck.d, $(progs:=.d)))
> +-include $(objects:.o=.o.d) $(cmd-objects:.o=.o.d) $(subst .btrfs,, $(filter-out btrfsck.o.d, $(progs:=.o.d)))
>  endif
> 
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Patch

--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@ 
 *.o
 *.static.o
-.*.o.d
+*.o.d
 version.h
 version
 man/*.gz
diff --git a/Makefile b/Makefile
index 70880bc..849e3fe 100644
--- a/Makefile
+++ b/Makefile
@@ -76,8 +76,8 @@  else
        check = true
 endif

-%.d: %.c
-       $(Q)$(CC) -MM -MG -MF $@ -MT $(@:.d=.o) -MT $(@:.d=.static.o) -MT $@ $(AM_CFLAGS) $(CFLAGS) $<
+%.o.d: %.c
+       $(Q)$(CC) -MM -MG -MF $@ -MT $(@:.o.d=.o) -MT $(@:.o.d=.static.o) -MT $@ $(AM_CFLAGS) $(CFLAGS) $<

 .c.o:
        $(Q)$(check) $<
@@ -186,7 +186,7 @@  install-man:

 clean :
        @echo "Cleaning"
-       $(Q)rm -f $(progs) cscope.out *.o *.d btrfs-convert btrfs-image btrfs-select-super \
+       $(Q)rm -f $(progs) cscope.out *.o *.o.d btrfs-convert btrfs-image btrfs-select-super \
              btrfs-zero-log btrfstune dir-test ioctl-test quick-test send-test btrfsck \
              btrfs.static mkfs.btrfs.static btrfs-calc-size \
              version.h \
@@ -205,5 +205,5 @@  install: $(libs) $(progs) install-man
        $(INSTALL) -m644 $(headers) $(DESTDIR)$(incdir)

 ifneq ($(MAKECMDGOALS),clean)
--include $(objects:.o=.d) $(cmd-objects:.o=.d) $(subst .btrfs,, $(filter-out btrfsck.d, $(progs:=.d)))
+-include $(objects:.o=.o.d) $(cmd-objects:.o=.o.d) $(subst .btrfs,, $(filter-out btrfsck.o.d, $(progs:=.o.d)))
 endif