gcc

BUILDER-CC(1)							 Debian GNU/Linux						     BUILDER-CC(1)

NAME

       builder-cc - gcc wrapper to facilitate pentium-optimizations

SYNOPSIS

       export DEBIAN_BUILDARCH=architecture
       export DEBIAN_BUILDGCCVER=gcc-version
       gcc ...

DESCRIPTION

       The  builder-cc	wrapper is normally used by calling gcc as usual. If the environment variable DEBIAN_BUILDARCH is not set, builder-cc does
       nothing, and the real gcc is invoked with the specified arguments.

       When the DEBIAN_BUILDARCH environment variable is set, builder-cc invokes gcc with the  specified  arguments,  plus  -mcpu=DEBIAN_BUILDARCH
       -march=DEBIAN_BUILDARCH	This  has  the effect of telling gcc to use architecture-specific optimizations without changing the command line.
       This is particularly useful for package builds.

       If DEBIAN_BUILDGCCVER is not set, builder-cc calls  gcc.real.   If  DEBIAN_BUILDGCCVER  is  set,  builder-cc  calls  gcc-DEBIAN_BUILDGCCVER
       instead.

ENVIRONMENT

       DEBIAN_BUILDARCH
	      If set, the architecture to compile for. Useful values are pentium or pentiumpro.

       DEBIAN_BUILDGCCVER
	      If set, the version of gcc to be invoked. Useful values are 3.0 or 2.95.

NOTES

       The real gcc is renamed gcc.real, and a diversion is registered with dpkg-divert(1).  Thus builder-cc's idea of the default gcc is dictated
       by whatever package installed /usr/bin/gcc.

SEE ALSO

       gcc(1)

Debian Project							    2002-03-02							     BUILDER-CC(1)