commit 047fd921744f39a82a86d9370e03f7af511e6e84
from: Russ Cox <rsc@swtch.com>
date: Mon Feb 25 14:45:53 2019 UTC

page: handle EPS without showpage

commit - 3ad4afbe821687bd77f8dffb0e0bf4947faf0a83
commit + 047fd921744f39a82a86d9370e03f7af511e6e84
blob - 7179429acc1035a47cccb47872bc70e34cedc046
blob + 5c493b35583d44c8301a1aa3c3b848c6aef2857e
--- src/cmd/page/gs.c
+++ src/cmd/page/gs.c
@@ -185,6 +185,10 @@ spawngs(GSInfo *g, char *safer)
 	chanfree(cp);
 
 	Binit(&g->gsrd, stdoutp[0], OREAD);
+
+	gscmd(g, "/PAGEDIDSHOWPAGE false def\n");
+	gscmd(g, "/showpage { /PAGEDIDSHOWPAGE true def showpage } bind def\n");
+	gscmd(g, "/PAGEFLUSH { PAGEDIDSHOWPAGE not {showpage} if /PAGEDIDSHOWPAGE false def } def\n");
 
 	gscmd(g, "/PAGEOUT (/dev/fd/4) (w) file def\n");
 	if(!strcmp(safer, "-dSAFER"))
blob - e75a1477c6927dac4e566624c4a639f8b80ac3b1
blob + 7935f694c7f43e10981e924926b15b95ffdfbc59
--- src/cmd/page/ps.c
+++ src/cmd/page/ps.c
@@ -353,7 +353,7 @@ Keepreading:
 	}
 
 	if(dumb) {
-		fprint(ps->gs.gsfd, "(%s) run\n", argv[0]);
+		fprint(ps->gs.gsfd, "(%s) run PAGEFLUSH\n", argv[0]);
 		fprint(ps->gs.gsfd, "(/dev/fd/3) (w) file dup (THIS IS NOT A PLAN9 BITMAP 01234567890123456789012345678901234567890123456789\\n) writestring flushfile\n");
 	}
 
@@ -420,6 +420,7 @@ psdrawpage(Document *d, int page)
 	 * so send one to avoid deadlock.
 	 */
 	write(ps->gs.gsfd, "\n", 1);
+	fprint(ps->gs.gsfd, "\nPAGEFLUSH\n");
 	im = convert(&ps->gs.g);
 	if(im == nil) {
 		fprint(2, "fatal: readimage error %r\n");