On 07 Jan 2004 12:33:59 -0800, Paul Eggert wrote: > Eric Sunshine <sunshine@xxxxxxxxxxxxxx> writes: > > in my environment, SHELL is set to tcsh, yet when I invoke > > configure, it is run by /bin/sh (because of #! /bin/sh at the top of > > the script). > Ouch (and I should have figured that out myself, sorry). > Hence it's a serious bug to test $SHELL at all. Testing if SHELL is a "desirable" shell is not necessarily a bug, but assuming that SHELL is the shell running the script certainly is a bad bug. > Autoconf 2.59 doesn't have this bug, as it tests the current shell > directly, by running some code in it, rather than by trying to invoke > $SHELL. > Thanks very much for pursuing this. Will your patch take the Autoconf > 2.59 approach for testing the current shell? Yes, the new patch first checks the currently running shell. If that fails, then it checks SHELL, since SHELL might reference a suitable shell. Finally, if that fails, then it performs the more exhaustive search for an appropriate shell. -- ES
