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autoconf-2.62: `make install' fails if file system is case insensitive

From: Keith Marshall
Subject: autoconf-2.62: `make install' fails if file system is case insensitive
Date: Fri, 9 May 2008 21:16:11 +0100
User-agent: KMail/1.9.1

If autoconf's Makefile is processed by a GNU make-3.81, which has been 
configured to respect a case insensitive file system, (IMO, the correct 
configuration for use on MS-Windows, among other other systems which 
also have such file systems), and the build is configured directly 
within the source directory, then `make install' fails thus:

  $ make install
  Makefile:678: warning: overriding commands for target `install'
  Makefile:574: warning: ignoring old commands for target `install'
  /bin/sh /home/rgbl0264/foobar/foo/autoconf-2.62/build-aux/missing \
      --run makeinfo --no-headers --no-validate --no-split  -o install \

This problem was recently reported by a user on the MinGW users ML:

It is not apparent when performing a VPATH build, but is reproducible 
when building in the source directory, both for autoconf-2.62, and for 
earlier versions, (I've also confirmed this for autoconf-2.61).  It 
appears that this rule, (in autoconf-2.62 Makefile):

  $(srcdir)/INSTALL: $(top_srcdir)/doc/install.texi

...found at Makefile line 677, (with commands starting at line 678), 
conflicts with this one...

  install: $(BUILT_SOURCES)
        $(MAKE) $(AM_MAKEFLAGS) install-recursive

...(found at lines 573/574), if, and only if, make is (correctly, IMO) 
configured to respect the fundamentally case-insensitive nature of the 
Win32 file system, *and* $(srcdir) is identically equal to `.', (as 
will be the case when building within the source directory).

This issue may be resolved by replacing each of the three references to 
`$(srcdir)/INSTALL', in the Makefile, by `$(abs_srcdir)/INSTALL'.  I've 
confirmed this, by making the appropriate changes in Makefile.in, and 
then successfully repeating the `./configure && make && make install' 
sequence under MSYS-1.0.11, (with case-insensitive GNU make-3.81), in 
the autoconf-2.62 source directory, on MS-Win2K.  The attached patch,
against released autoconf-2.62's Makefile.am, will introduce the same 
change, on next Makefile.in regeneration.


Attachment: autoconf-2.62-Makefile.am.patch
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