X-Spam-Check-By:	sourceware.org
From:	gustav <gustav AT indiana DOT edu>
To:	cygwin AT cygwin DOT com
Cc:	psmith AT gnu DOT org
Subject:	csh and/or GNU make bug
Message-Id:	<20060418011535.DE17216400E@perth.ovpit.indiana.edu>
Date:	Mon, 17 Apr 2006 21:15:35 -0400 (EDT)
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There is a bug either in GNU make or in tcsh or in both---on
Cygwin. The combination of csh and GNU make will hang if SHELL is
declared as /bin/csh -f.  The -f option is often used to stop csh from
sourcing users' .cshrc on invocation.

   versions:
      make     3.80-1
      tcsh     6.14.00-5
      cygwin   1.5.19-4

Here is a brief demo:

gustav AT YANCHEP:../tryme 21:14:36 !548 $ cat GNUmakefile
SHELL = /bin/csh -f

TODAY := $(shell date +%d%b%Y)

all: echo

echo:
        echo $(TODAY)

gustav AT YANCHEP:../tryme 21:14:39 !549 $ make

... make hangs ...

^C
gustav AT YANCHEP:../tryme 21:14:43 !550 $ ed GNUmakefile
86
/SHELL/
SHELL = /bin/csh -f
s/ -f//p
SHELL = /bin/csh
w
83
q
gustav AT YANCHEP:../tryme 21:15:05 !551 $ make
echo 17Apr2006
17Apr2006
gustav AT YANCHEP:../tryme 21:15:07 !552 $ 

Happy hacking,

==
 Zdzislaw (Gustav) Meglicki, Office of the Vice President for Information
 Technology, Indiana University, 601 E. Kirkwood Ave., Room 116, 
 Bloomington, IN 47405-1223, USA, http://beige.ucs.indiana.edu/gustav,
 ph: 812-856-5597 (o), 812-345-3284 (m), fax: 812-855-3310/812-856-3147
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