Backport Multiarch Support from GCC 4.6

[mesheets]

Backport multiarch support, based on the backport patch for GCC 4.6.

• Multiarch Backports for the 4.7 and 4.6 Branches, posted January 14, 2013
  • GCC 4.6 Multiarch Patch File
    • (Earlier version of the multiarch patch)
  • GCC 4.7 Multiarch Patch File
• Discussion History

Discussion threads

• Updates needed to build GCC/GPC on modern installs
• Hacks for building GCC 3.4.6

The configure script will need to be regenerated, likely requiring a version of autoconf appropriate to the timeframe of GCC 3.4.6 (the current configure file is listed as being generated using autoconf 2.13, but is that accurate?).

• Release archive
• Release history