a2ps configure warning if pwd contains whitespace

[Bryan Paul Inderhees]

Hello--

I'm building a2ps 4.13b on a Windows (GnuWin32 [1]) system, and also  
repeated this on Mac OS X 10.4.10, both using bash as shell.

When running the configure script in a directory that has a space in  
it, such as under cygwin/GnuWin32:
/cygdrive/c/Program Files/GnuWin32/src/a2ps/4.13b/a2ps-4.13b-src
or Mac OS X:
/Users/bryan/with space/a2ps-4.13

The configure script generates an error when it tries to run the  
"missing" script:
---begin output sample---
$ ./configure
loading cache ./config.cache
checking for a BSD compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
/Users/bryan/with: /Users/bryan/with: No such file or directory
configure: warning: `missing' script is too old or missing
checking for mawk... no
---end output sample---

I managed to solve the problem by adding escaped quotes to the  
command, and have included a unified diff/patchfile for it.

Admittedly, in playing around with it, it still fails under the  
(admittedly even weirder) situation where someone includes a  
directory that includes a $, such as:
/Users/bryan/$HOME/a2ps-4.13
So the ideal solution would be something that provides the  
appropriate escapes when necessary, but nothing's coming to mind that  
can do that easily.

--Bryan Inderhees

configure.patch
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smime.p7s
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