On Wed, Apr 30, 2008 at 12:57 AM, Nico Sabbi <[EMAIL PROTECTED]> wrote: > > On Monday 28 April 2008 23:53:38 Dan Nicholson wrote: > > --- > > Makefile | 2 ++ > > 1 files changed, 2 insertions(+), 0 deletions(-) > > > > diff --git a/Makefile b/Makefile > > index fcc3940..85108e5 100644 > > --- a/Makefile > > +++ b/Makefile > > @@ -81,6 +81,8 @@ endif > > version.h: > > sh $(SRC_PATH)/version.sh $(SRC_PATH) > > > > +$(SRCS) $(DVDREAD_SRCS): version.h > > + > > > > # General targets > > can you explain, please? > If I read the dependencies all .c files already depend on version.h
They don't. The library $(SHLIB) depends on version.h. Since that's the first target, version.h gets built immediately. However, if you have multiple jobs (-j3 or whatever), make will also begin building the .c files without waiting for version.h to be built. This causes a race condition if any .c file including config.h or version.h is built before version.h is created. You can see if the .c files depend on version.h pretty easily. Run `make -d dvdnav.o' and redirect the log somewhere. It will show in detail the prerequisites for the target dvdnav.o. For me, version.h never comes up until after the patch above. If this is a clean checkout (i.e., you've only run configure2), `mkdir obj && make dvdnav.o' will bomb like this: cd obj && gcc -MD -g -O2 -march=i686 -pipe -Wall -funsigned-char -I/home/dan/scm/libdvdnav -I"/home/dan/scm/libdvdnav"/src -I"/home/dan/scm/libdvdnav"/src/vm -DDVDNAV_COMPILE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -DHAVE_CONFIG_H -DHAVE_DLFCN_H -I"/home/dan/scm/libdvdnav"/src/dvdread -c -o dvdnav.o /home/dan/scm/libdvdnav/src/dvdnav.c In file included from /home/dan/scm/libdvdnav/src/dvdnav.c:25: /home/dan/scm/libdvdnav/config.h:2:21: error: version.h: No such file or directory With the patch, it properly generates version.h first, and this works. -- Dan _______________________________________________ DVDnav-discuss mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/dvdnav-discuss
