Can't build a working gcc package

Question

Dunno what my problem is with building a gcc package that actually works.
1) I rebuild and installed libtool
2) I cleared by ~/.bashrc
3) I added the de locales
4) I built gcc
When I install it however, I get an error and nothing compiles
$ sudo pacman -U /var/bauerbill/core/gcc/gcc-4.5.1-2-x86_64.pkg.tar.xz
resolving dependencies...
looking for inter-conflicts...
Targets (1): gcc-4.5.1-2
Total Download Size: 0.00 MB
Total Installed Size: 69.60 MB
Proceed with installation? [Y/n]
checking package integrity...
(1/1) checking for file conflicts [##################################] 100%
(1/1) upgrading gcc [##################################] 100%
error: command failed to execute correctly
Love to know what I'm doing incorrectly.

Answer 1

@allan - no, the package does contains both an .install and .info file.  They are both compressed.
The notes in the PKGBUILD:
# $Id: PKGBUILD 101006 2010-11-27 11:52:52Z allan $
# Maintainer: Jan de Groot <[email protected]>
# Maintainer: Allan McRae <[email protected]>
# toolchain build order: linux-api-headers->glibc->binutils->gcc->binutils->glibc
# NOTE: libtool requires rebuilt with each new gcc version
Does this imply that I need to build and install these in the order specified prior to attempting the gcc build?