[gtk+] Fix typo reqired -> required

[Sébastien Wilmet <swilmet src gnome org>]

commit b2e8820ed97357b5a9d8af510ee9eefed93dab6f
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sun Mar 10 17:22:26 2013 +0100

    Fix typo reqired -> required

 docs/reference/gtk/compiling.sgml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/docs/reference/gtk/compiling.sgml b/docs/reference/gtk/compiling.sgml
index 827e408..012cb70 100644
--- a/docs/reference/gtk/compiling.sgml
+++ b/docs/reference/gtk/compiling.sgml
@@ -67,7 +67,7 @@ this range will trigger compiler warnings.
 Here is how you would compile hello.c if you want to allow it
 to use symbols that were not deprecated in 3.2:
 <programlisting>
-$ cc -DGDK_VERSION_MIN_REQIRED=GDK_VERSION_3_2 `pkg-config --cflags --libs gtk+-3.0` hello.c -o hello
+$ cc -DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_3_2 `pkg-config --cflags --libs gtk+-3.0` hello.c -o hello
 </programlisting>
 </para>