Re: Automake 1.16.1: problem with non-gnu make and gnulib

[Neil MacLeod]

Hi Thomas

I'm seeing a similar (but not identical) issue[1] which is also
related to the subdir-objects commit[2] when building the package
"Heimdal" with automake-1.16+ (and GNU make-4.2.1).

Making all in hcrypto
make[2]: Entering directory
'/home/abuild/rpmbuild/BUILD/heimdal-7.5.0/lib/hcrypto'
  CC       test_rand.o
In file included from test_rand.c:42:
rand.h:46:10: fatal error: hcrypto/engine.h: No such file or directory
 #include <hcrypto/engine.h>
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [Makefile:2064: test_rand.o] Error 1
make[2]: Leaving directory
'/home/abuild/rpmbuild/BUILD/heimdal-7.5.0/lib/hcrypto'
make[1]: *** [Makefile:564: all-recursive] Error 1

Heimdal builds fine with automake-1.15.1, but Heimdal fails as above
with automake-1.16 (and 1.16.1), and it also fails with
automake-1.15.1 + the subdir-objects commit[2].

At the moment I've no idea if this is a Heimdal issue (bug/bad
practice in Makefile[3]?), or an automake-1.16.1 regression, so any
input would be appreciated!

Thanks
Neil MacLeod (MilhouseVH)

1. https://github.com/heimdal/heimdal/issues/529
2. 
http://git.savannah.gnu.org/cgit/automake.git/commit/?id=f4e91bfc490da63209aad19636568da3b955dcd4&h=master
3. https://github.com/heimdal/heimdal/blob/master/lib/hcrypto/Makefile.am