conf2struct possibly still broken with libconfig 1.7.3

[wak-google]

| NOTE: make -j 72 DESTDIR=/build PREFIX=/usr USELIBCAP=1 USELIBBSD=1 USESYSTEMD=1 sslh-conf.h
| Makefile:74: warning: ignoring prerequisites on suffix rule definition
| conf2struct sslhconf.cfg
| [WARN] Settings is null in get_hashvalue at /build/usr/bin/conf2struct line 52.
| Use of uninitialized value $header in concatenation (.) or string at /build/usr/bin/conf2struct line 1780.
| Use of uninitialized value $header in concatenation (.) or string at /build/usr/bin/conf2struct line 1780.
| : No such file or directory
| make: *** [Makefile:84: sslh-conf.h] Error 2

I don't run into these errors if I revert the libconfig change. This is using conf2struct at 06ddd92

[yrutschle]

How about with -j 1 ?

[wak-google]

It's the same even if I just execute conf2struct sslhconf.cfg directly.

[yrutschle]

ok, the call to fetch_hashref("/") translates, through the Perl API, to the same issue as I had here with libconfig 1.7.3.
The Perl API is lacking a way to retrieve the root element, so I worked around that.