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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)

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