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#!/bin/sh
set -eu
cflags() {
echo "CFLAGS += $*"
}
ldlibs() {
echo "LDLIBS ${o:-}= $*"
o=+
}
config() {
pkg-config --print-errors "$@"
cflags $(pkg-config --cflags "$@")
ldlibs $(pkg-config --libs "$@")
}
defstr() {
cflags "-D'$1=\"$2\"'"
}
defvar() {
defstr "$1" "$(pkg-config --variable=$3 $2)${4:-}"
}
exec >config.mk
for opt; do
case "${opt}" in
(--prefix=*) echo "PREFIX = ${opt#*=}" ;;
(--mandir=*) echo "MANDIR = ${opt#*=}" ;;
(*) echo "warning: unsupported option ${opt}" >&2 ;;
esac
done
case "$(uname)" in
(OpenBSD)
cflags -I/usr/local/include
ldlibs -L/usr/local/lib -liconv -ltls
;;
(Darwin)
config libtls
ldlibs -liconv -lresolv
;;
(Linux)
cflags -D_GNU_SOURCE
ldlibs -lresolv
config libtls
echo 'OBJS += compat.o'
;;
(*)
config libtls
;;
esac
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