glsl/apps: Assert that ftell does not return an error.

[mesa.git] / src / glsl / apps / compile.c

diff --git a/src/glsl/apps/compile.c b/src/glsl/apps/compile.c
index 3b3c083c2e131e651c6fae91e570b055f591fc79..21c2b7617e93b7197ffc44f4103682f2c67e5769 100644 (file)
--- a/src/glsl/apps/compile.c
+++ b/src/glsl/apps/compile.c
@@ -79,6 +79,7 @@ main(int argc,
 
    fseek(in, 0, SEEK_END);
    size = ftell(in);
+   assert(size != -1);
    fseek(in, 0, SEEK_SET);
 
    out = fopen(argv[3], "w");