* Yves-Alexis Perez <[email protected]> [2016-01-20 08:25]: > > Note that only the first error is reported; there might be more. You > > can find a snapshot of GCC 6 in experimental. To build with GCC 6, > > you can set CC=gcc-6 CXX=g++-6 explicitly. > > Could you add a bit more information about this, especially the new options > etc?
You can find some of that here: https://gcc.gnu.org/gcc-6/changes.html > > > glib-2.0 > > > libsystem.c: In function 'getpwnam': > > > libsystem.c:859:14: error: nonnull argument 'name' compared to NULL > > > [-Werror=nonnull] > > > if (name == NULL) > > This looks spurious. It's usually considered a *good* idea to check for NULL > pointer, so I don't understand the error. Also, the code is: I'm no expert with this, but /usr/include/pwd.h defines: extern struct passwd *getpwnam (const char *__name) __nonnull ((1)); Looking at the preprocessed source of libsystem I see this e.g. extern struct passwd *getpwnam (const char *__name) __attribute__ ((__nonnull__ (1))); extern int __attribute__((__nonnull__ (1))) pam_end(pam_handle_t *pamh, int pam_status); so it's marked as __nonnull__ but then you're checking if it's NULL, and this is what this warning is about (error because of -Werror). You can find more info about this warning and the rationale here: https://gcc.gnu.org/ml/gcc-patches/2015-09/msg00621.html > So: > > - I fail to see how the compiler can statically know name is NULL Because of __nonnull__. -- Martin Michlmayr Linux for HPE Helion, Hewlett Packard Enterprise _______________________________________________ Pkg-xfce-devel mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-xfce-devel
