From 81a2cf7de059954f9f026a6064f9dc4424a31196 Mon Sep 17 00:00:00 2001
From: Sean V Kelley <seanvk@posteo.de>
Date: Fri, 3 Feb 2017 22:17:33 -0800
Subject: [PATCH] config: Add va_messaging flag

on by default, but allows optional disabling.

fixes #21

Signed-off-by: Sean V Kelley <seanvk@posteo.de>
---
 configure.ac | 11 +++++++++++
 va/va.c      |  4 ++++
 2 files changed, 15 insertions(+)

diff --git a/configure.ac b/configure.ac
index 540bdce..b14d624 100644
--- a/configure.ac
+++ b/configure.ac
@@ -153,6 +153,11 @@ AC_ARG_ENABLE([wayland],
                     [build with VA/Wayland API support @<:@default=yes@:>@])],
     [], [enable_wayland="yes"])
 
+AC_ARG_ENABLE([va-messaging],
+    [AC_HELP_STRING([--enable-va-messaging],
+                    [build with va info and error messaging @<:@default=yes@:>@])],
+    [], [enable_va_messaging="yes"])
+
 AC_ARG_ENABLE(dummy-driver,
     [AC_HELP_STRING([--enable-dummy-driver],
                     [build dummy video driver @<:@default=yes@:>@])],
@@ -186,6 +191,11 @@ if test "$enable_docs" = "yes"; then
 fi
 AM_CONDITIONAL(ENABLE_DOCS, test "$enable_docs" = "yes")
 
+# Check for va messaging
+if test "$enable_va_messaging" = "yes"; then
+    AC_DEFINE([ENABLE_VA_MESSAGING], [1], [Defined to 1 if va messaging is needed])
+fi
+
 # Check for __attribute__((visibility()))
 AC_CACHE_CHECK([whether __attribute__((visibility())) is supported],
     ac_cv_have_gnuc_visibility_attribute,
@@ -340,4 +350,5 @@ echo Default driver path .............. : $LIBVA_DRIVERS_PATH
 echo Extra window systems ............. : $BACKENDS
 echo Build dummy driver ............... : $enable_dummy_driver
 echo Build documentation .............. : $enable_docs
+echo Build with messaging ............. : $enable_va_messaging
 echo
diff --git a/va/va.c b/va/va.c
index 5040dc1..d83fd60 100644
--- a/va/va.c
+++ b/va/va.c
@@ -155,6 +155,7 @@ vaMessageCallback vaSetInfoCallback(vaMessageCallback callback)
 
 void va_errorMessage(const char *msg, ...)
 {
+#if ENABLE_VA_MESSAGING
     char buf[512], *dynbuf;
     va_list args;
     int n, len;
@@ -179,10 +180,12 @@ void va_errorMessage(const char *msg, ...)
     }
     else if (len > 0)
         va_log_error(buf);
+#endif
 }
 
 void va_infoMessage(const char *msg, ...)
 {
+#if ENABLE_VA_MESSAGING
     char buf[512], *dynbuf;
     va_list args;
     int n, len;
@@ -207,6 +210,7 @@ void va_infoMessage(const char *msg, ...)
     }
     else if (len > 0)
         va_log_info(buf);
+#endif
 }
 
 static bool va_checkVtable(void *ptr, char *function)
-- 
2.11.0