Upgrade linux-x64 container to supported Debian 8 (glibc 2.19)

Author: lovell

linux-x64/Dockerfile

@@ -1,14 +1,12 @@
-FROM debian:wheezy
+FROM debian:jessie
 MAINTAINER Lovell Fuller <[email protected]>
 
-# Create Debian 7 (glibc 2.13) container suitable for building Linux x64 binaries
+# Create Debian 8 (glibc 2.19) container suitable for building Linux x64 binaries
 
 # Build dependencies
 RUN \
-  echo "deb http://ftp.debian.org/debian wheezy-backports main" | tee /etc/apt/sources.list.d/wheezy-backports.list && \
   apt-get update && \
-  apt-get install -y build-essential gcc-4.9-backport prelink autoconf libtool nasm gtk-doc-tools texinfo gperf advancecomp libglib2.0-dev gobject-introspection && \
-  apt-get -t wheezy-backports install -y jq cmake && \
+  apt-get install -y build-essential gcc-4.9 prelink autoconf libtool nasm gtk-doc-tools texinfo gperf advancecomp libglib2.0-dev gobject-introspection jq cmake && \
   curl https://sh.rustup.rs -sSf | sh -s -- -y
 
 # Compiler settings