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#!/usr/bin/perl
# Arguments:
# 1: configure.in
# 2: C files
#
# You might want to specify configure.in again in the list of header files
# as well, because it also uses some includes.
# Note that this script does not process any includes, so you might
# have to run "cat configure.in */config.m4 > foo.in" first.
my %symbols;
# First, make a list of defines in configure
$in = shift;
while($tmp = shift) {
open(FI, $tmp);
while(<FI>) {
while(/([A-Za-z0-9_]+)/sgm) {
$symbols{$1} = 1;
}
}
close FI;
}
open(IN, $in) or die("Can't open $in");
while(<IN>) {
if(/AC_CHECK_FUNCS\(([\[]*)(.*)([\]]*)\)/) {
@hs = split / /, $2;
foreach(@hs) {
if($symbols{$_} != 1) { print "$_\n"; }
}
}
}
close IN;
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