Re: [PATCH v2] nfs-utils: Run rpcgen using the cpp found by configure.

[Calvin Walton <calvin.walton@kepstin.ca>]

On Wed, 2015-05-06 at 16:23 -0400, Steve Dickson wrote:
> On 04/21/2015 01:31 PM, Calvin Walton wrote:
> > rpcgen normally runs with a hardcoded cpp path of e.g. /lib/cpp,
> > but not all Linux distributions install a cpp there.
> > 
> > Grab a trick from glibc, and run rpcgen with a cpp-path pointing at
> > a script; the script then runs the cpp specified in the CPP
> > environment variable - which we set to $CC -E with appropriate
> > options.
> > 
> > Signed-off-by: Calvin Walton <calvin.walton@kepstin.ca>
> I'm getting the following errors when I apply this patch:
> 
> test -f mount.h && rm -rf mount.h || true
> CPP='gcc -E -x c-header' /usr/bin/rpcgen -Y ../../tools/rpcgen -l -o 
> mount_clnt.c mount.x
> execvp: Permission denied
> /usr/bin/rpcgen: C preprocessor failed with exit code 1

This probably means that the script at tools/rpcgen/cpp failed to get 
the executable permission added during patch application. I'm not sure 
why this happens; the patch header includes "new file mode 100755" as 
git should be expecting.

Doing a chmod +x tools/rpcgen/cpp after applying the patch should fix 
the issue.

-- 
Calvin Walton <calvin.walton@kepstin.ca>