Found the following significant warnings:
  libCEigen.c:76:13: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  libCEigen.c:76:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
See ‘/home/hornik/tmp/R.check/r-devel-clang/Work/PKGS/MatManlyMix.Rcheck/00install.out’ for details.
* used C compiler: ‘Debian clang version 15.0.6’
Found the following significant warnings:
  libCEigen.c:76:9: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
See ‘/home/hornik/tmp/R.check/r-devel-gcc/Work/PKGS/MatManlyMix.Rcheck/00install.out’ for details.
* used C compiler: ‘gcc-12 (Debian 12.2.0-10) 12.2.0’
Found the following significant warnings:
  libCEigen.c:76:13: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
  libCEigen.c:76:21: warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
See ‘/data/gannet/ripley/R/packages/tests-clang/MatManlyMix.Rcheck/00install.out’ for details.
* used C compiler: ‘clang version 15.0.6’
Found the following significant warnings:
  libCEigen.c:76:9: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
See ‘/data/gannet/ripley/R/packages/tests-devel/MatManlyMix.Rcheck/00install.out’ for details.
* used C compiler: ‘gcc (GCC) 12.2.1 20221121 (Red Hat 12.2.1-4)’