From 85bb63bd290cb773ae8fe960fbd91ad828c12ca6 Mon Sep 17 00:00:00 2001
From: Baptiste Daroussin <bapt@FreeBSD.org>
Date: Sat, 8 Apr 2017 08:41:05 +0000
Subject: [PATCH] When passingthrough from sdiff to diff the
 -H/--speed-large-files options rename it to the long version as GNU diff only
 support the long version of the option not the short version

---
 usr.bin/sdiff/sdiff.1 | 4 ++--
 usr.bin/sdiff/sdiff.c | 6 ++++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/usr.bin/sdiff/sdiff.1 b/usr.bin/sdiff/sdiff.1
index ef1e12879ea9..e15ae7eccc64 100644
--- a/usr.bin/sdiff/sdiff.1
+++ b/usr.bin/sdiff/sdiff.1
@@ -4,7 +4,7 @@
 .\" Written by Raymond Lai <ray@cyth.net>.
 .\" Public domain.
 .\"
-.Dd $Mdocdate: July 5 2012 $
+.Dd April 8, 2017
 .Dt SDIFF 1
 .Os
 .Sh NAME
@@ -12,7 +12,7 @@
 .Nd side-by-side diff
 .Sh SYNOPSIS
 .Nm
-.Op Fl abdilstW
+.Op Fl abdilstHW
 .Op Fl I Ar regexp
 .Op Fl o Ar outfile
 .Op Fl w Ar width
diff --git a/usr.bin/sdiff/sdiff.c b/usr.bin/sdiff/sdiff.c
index ffa3dd6430bb..a0a7566f3528 100644
--- a/usr.bin/sdiff/sdiff.c
+++ b/usr.bin/sdiff/sdiff.c
@@ -259,7 +259,6 @@ main(int argc, char **argv)
 		case 'E':
 		case 'i':
 		case 't':
-		case 'H':
 		case 'W':
 			for(popt = longopts; ch != popt->val && popt->name != NULL; popt++);
 			diffargv[1]  = realloc(diffargv[1], sizeof(char) * strlen(diffargv[1]) + 2);
@@ -271,6 +270,9 @@ main(int argc, char **argv)
 			else
 				sprintf(diffargv[1], "%s%c", diffargv[1], ch);
 			break;
+		case 'H':
+			diffargv[diffargc++] = "--speed-large-files";
+			break;
 		case DIFFPROG_OPT:
 			diffargv[0] = diffprog = optarg;
 			break;
@@ -1151,7 +1153,7 @@ usage(void)
 {
 
 	fprintf(stderr,
-	    "usage: sdiff [-abdilstW] [-I regexp] [-o outfile] [-w width] file1"
+	    "usage: sdiff [-abdilstHW] [-I regexp] [-o outfile] [-w width] file1"
 	    " file2\n");
 	exit(2);
 }