gcc40.mac/makefile requires some minor changes for building FastFormat with the gcc 4.2 toolchain in XCode 3.2.x
Similiar story for gcc42.mac.x64
$ p4 diff .fastformat-0.5.7/build/gcc40.mac/makefile
27c27
< COMP_TAG = gcc40
---
> COMP_TAG = gcc42
81,82c81,82
< CC = gcc-4.0
< CPPC = g++-4.0
---
> CC = gcc-4.2
> CPPC = g++-4.2
84c84
< LD = g++
---
> LD = g++-4.2
142c142
< CPPC_F_WARNING_MAX = -Wall -pedantic -Wno-long-long -Wno-long-double -Wno-unused-value -Wno-non-virtual-dtor
---
> CPPC_F_WARNING_MAX = -Wall -pedantic -Wno-long-long -Wno-unused-value -Wno-non-virtual-dtor