Re: Bootstrap failure on MS-Windows

[Dani Moncayo <dmoncayo@gmail.com>]

>> I've tried again with that correction, but I see the same failure.
>>
>> I may provide any necessary info to investigate this further (though I
>> think that this problem should be trivial to reproduce by anyone who
>> builds Emacs on MS-Windows).
>
> The relevant piece of information is src/epaths.h.  But really, Dani,
> you are the only person who is motivated enough to dig into this, so
> please do.  The issue cannot be too complicated: what happens here is
> that Emacs does not find its lisp subdirectory, and therefore looks
> for the one in the installation tree, which doesn't yet exist.

It seems that Glenn's patch (with Eli's fix) was almost correct.

After a bit of observation to the output of "msysconfig", I found a
problem in this line:

  @(w32srcdir=`cd "$srcdir"; pwd -W | sed -e 's,^\([A-Za-z]\):,/\1,' |
${msys_to_w32}` ; \
                   ^^^^^^^

It seems that the shell was expanding "$s" to the empty string, so
that the command finally executed was "cd rcdir; pwd -W | ..."

I've fixed this by replacing "$srcdir" with "${srcdir}".

So this is the final patch that has worked for me:

diff --git a/Makefile.in b/Makefile.in
index 461f0cb..39bdc5d 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -342,8 +342,16 @@ msys_sed_sh_escape=sed -e 's/[];$$*.^[]/\\\\&/g'
 # nt/epaths.nt as the template.
 # Use the value of ${locallisppath} supplied by `configure',
 # to support the --enable-locallisppath argument.
+#
+# When building with MinGW inside the MSYS tree, 'pwd' produces directories
+# relative to the root of the MSYS tree, e.g. '/home/user/foo' instead of
+# '/d/MSYS/home/user/foo'.  If such a value of srcdir is written to
+# src/epaths.h, that causes temacs to fail, because, being a MinGW
+# program that knows nothing of MSYS root substitution, it cannot find
+# the data directory.  "pwd -W" produces Windows-style 'd:/foo/bar'
+# absolute directory names, so we use it here to countermand that lossage.
 epaths-force-w32: FRC
- @(w32srcdir=`echo "${abs_srcdir}" | ${msys_to_w32}` ; \
+ @(w32srcdir=`cd "${srcdir}"; pwd -W | sed -e 's,^\([A-Za-z]\):,/\1,'
| ${msys_to_w32}` ; \
   prefixpattern=`echo '${prefix}' | ${msys_to_w32} | ${msys_sed_sh_escape}` ; \
   locallisppath=`echo '${locallisppath}' | ${msys_lisppath_to_w32} |
${msys_prefix_subst}` ; \
   sed < ${srcdir}/nt/epaths.nt > epaths.h.$$$$ \
diff --git a/configure.ac b/configure.ac
index cb97564..a8fb34b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -419,17 +419,6 @@ AC_ARG_ENABLE(gtk-deprecation-warnings,
  [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])

-#### When building with MinGW inside the MSYS tree, 'pwd' produces
-#### directories relative to the root of the MSYS tree,
-#### e.g. '/home/user/foo' instead of '/d/MSYS/home/user/foo'.  When
-#### such a value of srcdir is written to the top-level Makefile, it
-#### gets propagated to src/epaths.h, and that causes temacs to fail,
-#### because, being a MinGW program that knows nothing of MSYS root
-#### substitution, it cannot find the data directory.  "pwd -W"
-#### produces Windows-style 'd:/foo/bar' absolute directory names, so
-#### we use it here to countermand that lossage.
-test "$MSYSTEM" = "MINGW32" && abs_srcdir=`(cd "$abs_srcdir"; pwd -W
| sed -e 's,^\([[A-Za-z]]\):,/\1,')`
-
 ### Canonicalize the configuration name.

 AC_CANONICAL_HOST


-- 
Dani Moncayo