Re: [PATCH/RFC v3 02/16] Integrate remote-svn into svn-fe/Makefile.

[Florian Achleitner <florian.achleitner.2.6.31@gmail.com>]

On Tuesday 14 August 2012 13:14:12 Junio C Hamano wrote:
> Florian Achleitner <florian.achleitner.2.6.31@gmail.com> writes:
> > Requires some sha.h to be used and the libraries
> > to be linked, this is currently hardcoded.
> > 
> > Signed-off-by: Florian Achleitner <florian.achleitner.2.6.31@gmail.com>
> > ---
> > 
> >  contrib/svn-fe/Makefile |   16 ++++++++++------
> >  1 file changed, 10 insertions(+), 6 deletions(-)
> > 
> > diff --git a/contrib/svn-fe/Makefile b/contrib/svn-fe/Makefile
> > index 360d8da..8f0eec2 100644
> > --- a/contrib/svn-fe/Makefile
> > +++ b/contrib/svn-fe/Makefile
> > @@ -1,14 +1,14 @@
> > -all:: svn-fe$X
> > +all:: svn-fe$X remote-svn$X
> > 
> >  CC = gcc
> >  RM = rm -f
> >  MV = mv
> > 
> > -CFLAGS = -g -O2 -Wall
> > +CFLAGS = -g -O2 -Wall -DSHA1_HEADER='<openssl/sha.h>'
> > -Wdeclaration-after-statement> 
> >  LDFLAGS =
> >  ALL_CFLAGS = $(CFLAGS)
> >  ALL_LDFLAGS = $(LDFLAGS)
> > 
> > -EXTLIBS =
> > +EXTLIBS = -lssl -lcrypto -lpthread ../../xdiff/lib.a
> 
> I haven't looked carefully, but didn't we have to do a bit more
> elaborate when linking with ssl/crypto in our main Makefile to be
> portable across various vintages of OpenSSL libraries?
> 
> Does contrib/svn-fe/ already depend on OpenSSL by the way?  It needs
> to be documented somewhere in the same directory.
> 
> If one builds the main Git binary with NO_OPENSSL, can this still be
> built and linked?
> 
> What does this use xdiff/lib.a for?
> 
> The above are just mental notes; I didn't read the later patches in
> the series that may already address these issues.

For the makefile, I've to say that this is just a hack to make it work. I'm not 
sure how it would be correctly integrated into git's makefile hierarchy.
The OPENSSL header and the xdiff/lib.a are here because it doesn't work 
otherwise. I need to dig into that to find out why. Any tips how to do it 
right?
 
> >  GIT_LIB = ../../libgit.a
> >  VCSSVN_LIB = ../../vcs-svn/lib.a
> > 
> > @@ -37,8 +37,12 @@ svn-fe$X: svn-fe.o $(VCSSVN_LIB) $(GIT_LIB)
> > 
> >  	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ svn-fe.o \
> >  	
> >  		$(ALL_LDFLAGS) $(LIBS)
> > 
> > -svn-fe.o: svn-fe.c ../../vcs-svn/svndump.h
> > -	$(QUIET_CC)$(CC) -I../../vcs-svn -o $*.o -c $(ALL_CFLAGS) $<
> > +remote-svn$X: remote-svn.o $(VCSSVN_LIB) $(GIT_LIB)
> > +	$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ remote-svn.o \
> > +		$(ALL_LDFLAGS) $(LIBS)
> > +
> > +%.o: %.c ../../vcs-svn/svndump.h
> > +	$(QUIET_CC)$(CC) -I../../vcs-svn -I../../ -o $*.o -c $(ALL_CFLAGS) $<
> > 
> >  svn-fe.html: svn-fe.txt
> >  
> >  	$(QUIET_SUBDIR0)../../Documentation $(QUIET_SUBDIR1) \
> > 
> > @@ -58,6 +62,6 @@ svn-fe.1: svn-fe.txt
> > 
> >  	$(QUIET_SUBDIR0)../.. $(QUIET_SUBDIR1) libgit.a
> >  
> >  clean:
> > -	$(RM) svn-fe$X svn-fe.o svn-fe.html svn-fe.xml svn-fe.1
> > +	$(RM) svn-fe$X svn-fe.o svn-fe.html svn-fe.xml svn-fe.1 remote-svn.o
> > 
> >  .PHONY: all clean FORCE