gfortran-4.6 dependency problems

[JC Lawrence]

The current version of gfortran in 12.0 LTS depends on gfortran-4.6, which in turn depends on GCC-4.6 (=, not >=), which can't be satisfied as the only GCC release in 12.0 is 4.6.1-2.  Is this likely to be resolved soon?  I need gfortran and am having the very devil of a time building GCC and thus gfortran from sources (arghh!).

# apt-get install gfortran
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 gfortran : Depends: gfortran-4.6 (>= 4.6.1-1) but it is not going to be installed

# apt-get install gfortran-4.6
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 gfortran-4.6 : Depends: gcc-4.6-base (= 4.6.1-9ubuntu3) but 4.6.3-1ubuntu5 is to be installed
                Depends: gcc-4.6 (= 4.6.1-9ubuntu3) but 4.6.3-1ubuntu5 is to be installed
                Depends: libgfortran3 (>= 4.6.1-9ubuntu3) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

# apt-cache show gcc
Package: gcc
Priority: optional
Section: devel
Installed-Size: 64
Maintainer: Ubuntu Developers <ubuntu-devel-discuss at lists.ubuntu.com>
Original-Maintainer: Debian GCC Maintainers <debian-gcc at lists.debian.org>
Architecture: amd64
Source: gcc-defaults (1.107ubuntu5)
Version: 4:4.6.1-2ubuntu5
Provides: c-compiler
Depends: cpp (>= 4:4.6.1-2ubuntu5), gcc-4.6 (>= 4.6.1-1)
Recommends: libc6-dev | libc-dev
Suggests: gcc-multilib, make, manpages-dev, autoconf, automake1.9, libtool, flex, bison, gdb, gcc-docConflicts: gcc-doc (<< 1:2.95.3)
Filename: pool/main/g/gcc-defaults/gcc_4.6.1-2ubuntu5_amd64.deb
Size: 5110
MD5sum: 3c7599c5c4ff882a1914af6b9bb9b4d1
SHA1: 26f17c03232d437703276e7a8929c410aaa8f215
SHA256: 2284f6c7ca58020dc27809a77df2faa4afa3798caa16d9a9e13d48ca58e4f8a2
Description-en: GNU C compiler
 This is the GNU C compiler, a fairly portable optimizing compiler for C.
 .
 This is a dependency package providing the default GNU C compiler.
Description-md5: c7efd71c7c651a9ac8b2adf36b137790
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Build-Essential: yes
Origin: Ubuntu
Supported: 18m
Task: ubuntu-desktop, ubuntu-usb, edubuntu-desktop, edubuntu-usb, xubuntu-desktop, mythbuntu-backend-master, mythbuntu-backend-slave, mythbuntu-desktop, mythbuntu-frontend

-- JCL