rocklinux/misc/archive/getdefs.sh

#!/bin/sh
#
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# ROCK Linux: rock-src/misc/archive/getdefs.sh
# ROCK Linux is Copyright (C) 1998 - 2003 Clifford Wolf
# 
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for x in unix linux i{3,4,5,6}86 alpha powerpc ppc gnuc \
         intel_compiler ; do
	for y in $x __${x}__ _${x}_ __$x _$x ; do
		for z in $y $( echo $y | tr a-z A-Z ) ; do
			echo "X$z $z" >> /tmp/$$.c
		done
	done
done

echo "== ${1:-cc} -E =="
${1:-cc} -E /tmp/$$.c | egrep -xv '(X(.*) \2|#.*)' | \
	cut -c2- | sed 's, ,	,' | expand -20
rm -f /tmp/$$.c