On Sep 12, 2013, at 1:47 AM, Richard Biener <rguent...@suse.de> wrote:
> ! #if 0
> ! FILE *file = fopen ("/tmp/rdg.dot", "w");
> ! gcc_assert (file != NULL);
> !
> dot_rdg_1 (file, rdg);
> ! fclose (file);
> !
> ! system ("dotty /tmp/rdg.dot &");
> #else
> dot_rdg_1 (stderr, rdg);
> #endif
> --- 276,290 ----
> DEBUG_FUNCTION void
> dot_rdg (struct graph *rdg)
> {
> ! /* When debugging, you may want to enable the following code. */
> ! #if 1
> ! FILE *file = popen("dot -Tx11", "w");
> ! if (!file)
> ! return;
> dot_rdg_1 (file, rdg);
> ! fflush (file);
> ! close (fileno (file));
> ! pclose (file);
> #else
> dot_rdg_1 (stderr, rdg);
> #endif
So I do compiler testing on my toaster oven by doing native builds of gcc
running on a binutils simulator and it doesn’t have a working popen (it’s in my
newlib, but it wants vfork, which I don’t have). I do have fork and system
however. :-) Could we replace the if 1 with if HAVE_popen where that is done
by an autoconf link test?
