Il giorno mar, 25/10/2011 alle 07.10 -0700, David Buchan ha scritto: > Hi Nicola, > > I did find this on the GNU gcc page: > "-l library > It makes a difference where in the command you write this option; the > linker searches and processes libraries and object files in the order > they are specified. Thus, `foo.o -lz bar.o' searches library `z' after > file foo.o but before bar.o. If bar.o refers to functions in `z', > those functions may not be loaded." > > http://gcc.gnu.org/onlinedocs/gcc/Link-Options.html > > Seems to confirm it. Interesting. > I guess the previous gcc was a bit more forgiving for my sloppy ways. > Maybe you can find this link interesting ;-) https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition The changes it describes have been implemented only in Oneiric > Dave > > > ______________________________________________________________________ > From: Nicola Fontana <nicola.entidi@xxxxxxxxx> > To: David Buchan <pdbuchan@xxxxxxxxx> > Cc: David Nečas <yeti@xxxxxxxxxxxxxxx>; "gtk-list@xxxxxxxxx" > <gtk-list@xxxxxxxxx> > Sent: Tuesday, October 25, 2011 8:06 AM > Subject: Re: GTK+ library access issue? > > Il giorno lun, 24/10/2011 alle 17.59 -0700, David Buchan ha scritto: > > Interesting. I just tried compiling a simple non-gtk c program: > > > > > > #include <stdio.h> > > #include <stdlib.h> > > #include <math.h> > > > > int > > main() > > { > > int i; > > double a =3.14; > > double c; > > > > c = log(a); > > > > c = pow(a, i); > > > > } > > > > > > > > > > $ gcc -lm test.c > > /tmp/cc9RccRJ.o: In function `main': > > test.c:(.text+0x1b): undefined reference to `log' > > test.c:(.text+0x33): undefined reference to `pow' > > collect2: ld returned 1 exit status > > Try "gcc test.c -lm": I found the object order is important on recent > Ubuntu. Not sure is gcc or ubuntu related. > > With autotools I had to move the libs flags in LDADD instead of > LDFLAGS. > > Ciao. > -- > Nicola > > > > > > _______________________________________________ > gtk-list mailing list > gtk-list@xxxxxxxxx > http://mail.gnome.org/mailman/listinfo/gtk-list _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
