Base X11 libraries cleanup

[Paul Howarth]

On Fri, 2006-06-30 at 09:30 +0200, Ralf Ertzinger wrote:
> Hi.
> 
> On Fri, 30 Jun 2006 09:23:20 +0200, Hans de Goede wrote:
> 
> > How about using ld --as-needed, AFAIK that has come up before and
> > would be a great improvement!
> 
> In the few cases that I've tried it it simply did not work as adveritsed
> (or maybe I misunderstood it's purpose).
> 
> To wit:
> 
> > cat > test.c <<EOF
> #include <stdio.h>
> 
> int main(int argc, char** argv) {
> 
>     fprintf(stdout, "This is a test\n");
> 
>     return 0;
> }
> EOF
> 
> > gcc -o test.o -c test.c
> > gcc -o test -lxml2 -Wl,--as-needed test.o
> > ldd -r -u ./test
> Unused direct dependencies:
> 
>         /usr/lib/libxml2.so.2

However:
$ cat > test.c <<EOF
#include <stdio.h>

int main(int argc, char** argv) {

    fprintf(stdout, "This is a test\n");

    return 0;
}
EOF

$ gcc -o test.o -c test.c
$ gcc -o test -lxml2 -Wl,--as-needed test.o
$ ldd -r -u ./test
Unused direct dependencies:
        /usr/lib/libxml2.so.2
$ gcc -o test -Wl,--as-needed -lxml2 test.o
$ ldd -r -u ./test

(no output)

Paul.