Add libxext-dev:i386 to packages needed in 12.04
I'm not entirely sure why, but Ubuntu complains if this dependency is
not explicitly specified.
"""
The following packages have unmet dependencies:
libgl1-mesa-dev:i386 : Depends: libxext-dev:i386 but it is not going to be installed
"""
Change-Id: I226bb5e287573a4f231f5c69f01d3fd94cea4d50
diff --git a/src/source/initializing.md b/src/source/initializing.md
index 439b83f..e5cc5a8 100644
--- a/src/source/initializing.md
+++ b/src/source/initializing.md
@@ -111,7 +111,7 @@
zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-dev:i386 \
g++-multilib mingw32 openjdk-6-jdk tofrodos python-markdown \
- libxml2-utils xsltproc zlib1g-dev:i386
+ libxml2-utils xsltproc zlib1g-dev:i386 libxext-dev:i386
## Configuring USB Access ##