[gnome-builder] egg-simple-label: replace alloca with C99 VLA

[Ting-Wei Lan <lantw src gnome org>]

commit 9568071d89198560969062196b83159b2783d4de
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Sat Apr 23 03:44:29 2016 +0800

    egg-simple-label: replace alloca with C99 VLA
    
    alloca is a non-standard feature. As we already requires a compiler
    supporting C11, using the standard variable-length array seems to be
    better. Although VLA is an optional feature in C11, both gcc and clang
    support it for a long time.
    
    This commit fixes the build on FreeBSD, which puts alloca in stdlib.h
    instead of alloca.h.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=765441

 contrib/egg/egg-simple-label.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/contrib/egg/egg-simple-label.c b/contrib/egg/egg-simple-label.c
index 5908f56..753fc55 100644
--- a/contrib/egg/egg-simple-label.c
+++ b/contrib/egg/egg-simple-label.c
@@ -16,7 +16,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <alloca.h>
 #include <string.h>
 
 #include "egg-simple-label.h"
@@ -81,7 +80,7 @@ egg_simple_label_calculate_size (EggSimpleLabel *self)
 
   if (self->width_chars >= 0)
     {
-      gchar *str = alloca (self->width_chars);
+      gchar str[self->width_chars];
       memset (str, '9', self->width_chars);
       pango_layout_set_text (layout, str, self->width_chars);
     }