retrace: Don't output color when stdout is not a tty (issue #143).

[apitrace] / cli / cli_dump.cpp

diff --git a/cli/cli_dump.cpp b/cli/cli_dump.cpp
index e30f6cc2b49574a00d58a111b38c82b59ca0982f..10dcd61d69bb07c8fe3c4c2ca0fa21cc5bc42aed 100644 (file)
--- a/cli/cli_dump.cpp
+++ b/cli/cli_dump.cpp
@@ -158,7 +158,7 @@ command(int argc, char *argv[])
 #ifdef _WIN32
         color = COLOR_OPTION_ALWAYS;
 #else
-        color = isatty(1) ? COLOR_OPTION_ALWAYS : COLOR_OPTION_NEVER;
+        color = isatty(STDERR_FILENO) ? COLOR_OPTION_ALWAYS : COLOR_OPTION_NEVER;
         pipepager();
 #endif
     }