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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)
		ldlibs -ltls
		config libcurl sqlite3
		;;
	(Linux)
		cflags -D_GNU_SOURCE
		config libcurl libtls sqlite3
		;;
	(*)
		config libcurl libtls sqlite3
		;;
esac
 |