MinGW build issues in Texinfo 5.1

[Eli Zaretskii]

I tried to build Texinfo with MinGW on a system that didn't have
ncurses installed, and the result was that Info wasn't built in that
case, even though the MinGW build doesn't use any curses library.

It turned out that this test was introduced between 4.13 and 5.0, and
I didn't notice because the systems I usually build Texinfo (and where
I tried all the pretests) all have ncurses installed.

This problem will also break the DJGPP (a.k.a. "DOS") build.

The patches to fix that are below.

(Btw, does the fact that I can check out the repository using svn+ssh
and my savannah user name mean that I can commit changes myself?)

2013-03-20  Eli Zaretskii  <address@hidden>

        * Makefile.am (SUBDIRS): If HOST_IS_WINDOWS, add 'info' to SUBDIRS
        even if HAVE_TERMLIBS is false.

        * configure.ac <have_termlib>: Don't bother warning on MinGW as
        well.


--- configure.ac~0      2013-03-13 00:56:34.000000000 +0200
+++ configure.ac        2013-03-20 11:47:05.951718900 +0200
@@ -223,9 +223,9 @@
      [TERMLIBS="${TERMLIBS} -l${termlib}"; break])
 done
 have_termlib=yes
-# don't bother warning on djgpp, it doesn't have a term library, it
-# ports each termcap-needing program separately according to its needs.
-if test -z "$TERMLIBS" && echo "$build" | grep -v djgpp >/dev/null; then
+# don't bother warning on djgpp and MinGW, they don't have a term library,
+# and port each termcap-needing program separately according to the needs.
+if test -z "$TERMLIBS" && echo "$build" | grep -v djgpp | grep -v mingw 
>/dev/null; then
   AC_MSG_WARN([info needs a terminal library, one of: ${TERMLIB_VARIANTS}])
   have_termlib=no
 fi


--- Makefile.am~0       2013-02-23 02:11:25.000000000 +0200
+++ Makefile.am 2013-03-20 12:25:24.669135000 +0200
@@ -35,6 +35,11 @@
   SUBDIRS += gnulib/lib install-info tp util
 if HAVE_TERMLIBS
     SUBDIRS += info
+else
+# DOS/Windows don't need TERMLIBS to build Info
+if HOST_IS_WINDOWS
+  SUBDIRS += info
+endif
 endif
 else
   # All subdirectories.
@@ -44,6 +49,11 @@
   SUBDIRS += $(native_tools) gnulib/lib
 if HAVE_TERMLIBS
   SUBDIRS += info
+else
+# DOS/Windows don't need TERMLIBS to build Info
+if HOST_IS_WINDOWS
+  SUBDIRS += info
+endif
 endif
   SUBDIRS += install-info po po_document tp Pod-Simple-Texinfo util \
              doc man