wmii/util/compile

#!/bin/sh -f

CC=$1
PACKAGES=$2
CFLAGS=$3; shift 3

[ -n "$PACKAGES" ] && CFLAGS="$CFLAGS $(pkg-config --cflags $PACKAGES)"

outfile="$1"; shift
bin="$(echo $0 | sed 's,/[^/]*$,,')"
xtmp=/tmp/cc.$$.$USER.out

# Derived from Russ Cox's 9c in plan9port.

echo CC $($bin/cleanname ${BASE}$outfile)
[ -n "$noisycc" ] && echo $CC -o $outfile $CFLAGS $@
eval '$CC -o $outfile '"$CFLAGS"' $@ >$xtmp 2>&1'
status=$?
[ $status -eq 0 ] || echo $CC -o $outfile $CFLAGS $@ >&2

base=$(echo $BASE | sed 's/,/\\,/g')
re='\([^[:space:]/][^[:space:]]*\..:[0-9]\)'

undup() { # GCC is crap.
	awk '
	function shift() {
		for(n=1; n<=3; n++)
			if(2*n <= nl)
			for(i=1; i<=n; i++) {
				if(l[i] != l[i+n])
					break;
				if(i == n) {
					for(i=1; i<=n; i++)
						print l[i]
					nl -= 2*n;
					for(i=1; i<=nl; i++)
						l[i] = l[i+2*n];
					return;
				}
			}
		if(nl == 0)
			return
		print l[1]
		for(i=1; i<nl; i++)
			l[i] = l[i+1]
		nl--
	}
	BEGIN{
		nl=0
		maxl=6
	}
	tolower($0) ~ /: (error|note): .?each undeclared identifier|: error: for each function it appears|is dangerous, better use|is almost always misused|: in function |: at top level:|support .long long.|use of c99 long long|iso c forbids conversion|warning:.*warn_unused_result/ {
		next
	}
	$1 == "warning:" {
		t = $2 " " $1
		sub(/^[^ ]+ [^ ]+ /, "")
		$0 = t " " $0
	}
	{
		sub(/\[/, ": [", $1)
		if(nl == maxl)
			shift()
		l[++nl] = $0
	}
	END{
		while(nl > 0)
			shift();
	}'
}

cat $xtmp | sed "s,^$re,$base&,g; s,\([[:space:]]\)$re,\1$base\2,g" |
	sed 's/ .first use in this function.$//; s/\"\([^\"][^\"]*\)\", line \([0-9][0-9]*\)/\1:\2/g' |
	undup >&2
rm -f $xtmp
exit $status