bug#9400: parallel-tests doesn't support `-' character in test extensions

[Stefano Lattarini]

I catched this while working some more on the Automake testsuite:

$ cat Makefile.am

TEST_EXTENSIONS = .t-1

TESTS = foo.t-1

$ cat configure.ac

AC_INIT([foo], [1.0])

AM_INIT_AUTOMAKE([foreign -Wall parallel-tests])

AC_CONFIG_FILES([Makefile])

AC_OUTPUT

$ aclocal

$ autoconf

$ : > install-sh

$ : > missing

$ automake

automake: bad characters in variable name `T-1_LOG_COMPILE'

automake: T-1_LOG_COMPILER: non-POSIX variable name

automake: AM_T-1_LOG_FLAGS: non-POSIX variable name

automake: T-1_LOG_FLAGS: non-POSIX variable name

Do you think it would be worthwhile to lift this limitation, by

automatically transliterating `-' (and maybe other non-alphabetic

characters) to `_'? Or should we simply give an error when something

in $(TEST_EXTENSIONS) contains non-alphabetic characters?

Regards,

Stefano