From 5b392ff49ab6be3947b457feafdbb72463fd0686 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Wed, 17 Feb 2010 08:59:02 -0700
Subject: glsl/apps: print usage info if insufficient args

---
 src/glsl/apps/process.c  | 1 +
 src/glsl/apps/purify.c   | 1 +
 src/glsl/apps/tokenise.c | 1 +
 src/glsl/apps/version.c  | 1 +
 4 files changed, 4 insertions(+)

diff --git a/src/glsl/apps/process.c b/src/glsl/apps/process.c
index 2d2ab911ac..e65f35cc00 100644
--- a/src/glsl/apps/process.c
+++ b/src/glsl/apps/process.c
@@ -47,6 +47,7 @@ main(int argc,
    unsigned int i;
 
    if (argc != 3) {
+      printf("Usage: process infile outfile\n");
       return 1;
    }
 
diff --git a/src/glsl/apps/purify.c b/src/glsl/apps/purify.c
index 8c01f4fc6a..3019e8b220 100644
--- a/src/glsl/apps/purify.c
+++ b/src/glsl/apps/purify.c
@@ -45,6 +45,7 @@ main(int argc,
    FILE *out;
 
    if (argc != 3) {
+      printf("Usage: purify infile outfile\n");
       return 1;
    }
 
diff --git a/src/glsl/apps/tokenise.c b/src/glsl/apps/tokenise.c
index 9ff73157e9..c70c3ccbb1 100644
--- a/src/glsl/apps/tokenise.c
+++ b/src/glsl/apps/tokenise.c
@@ -46,6 +46,7 @@ main(int argc,
    unsigned int i;
 
    if (argc != 3) {
+      printf("Usage: tokenize infile outfile\n");
       return 1;
    }
 
diff --git a/src/glsl/apps/version.c b/src/glsl/apps/version.c
index 40a4a069c3..0420f97294 100644
--- a/src/glsl/apps/version.c
+++ b/src/glsl/apps/version.c
@@ -45,6 +45,7 @@ main(int argc,
    FILE *out;
 
    if (argc != 3) {
+      printf("Usage: version infile outfile\n");
       return 1;
    }
 
-- 
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