[adding autoconf] On 06/04/2015 01:17 PM, Paul Eggert wrote: > > On 06/04/2015 09:41 AM, Michael Felt wrote: >> GEN src/coreutils.h >> /bin/sh: 0403-057 Syntax error at line 1 : `;' is not expected. >
> Port to POSIX shell, which doesn't allow 'for i in ; do ...'. Actually, POSIX _does_ allow for missing words between 'in' and the terminator (; or newline) before 'do' (whether by a word that expands to nothing, or by omission of words), requiring that the body of the for statement is skipped in that case: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_09_04 But it is also true that older shells did not always follow this rule, so you are indeed better off always supplying at least one word that won't be expanded into nothingness. Hmmm, I thought that autoconf would document it as a portability pitfall, but I don't see it under 'for' in this link: https://www.gnu.org/software/autoconf/manual/autoconf.html#Limitations-of-Builtins -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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