Fix builds on iq2000 and visium

visium and iq2000 have libgloss configure bits that reference
target_makefile_frag, but it's never set. This leads to failures during the
configure process and an empty libgloss/<target>/Makefile.  Naturally bad
things happen with an empty Makefile.

This patch initializes target_makefile_frag for both targets in their
configure.in files and updates the generated configure files.  This fixes the
build failures.  I've been using it in my tester for about a week and both
targets have flipped from consistently failing to consistently passing.

    * libgloss/visium/configure.in (target_makefile_frag): Define.
    * libgloss/visium/configure: Regenerated.
    * libgloss/iq2000/configure.in (target_makefile_frag): Define.
    * libgloss/iq2000/configure: Regenerated.

libgloss/iq2000/configure

@@ -2520,6 +2520,7 @@ test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
 
 
 host_makefile_frag=${srcdir}/../config/default.mh
+target_makefile_frag=${srcdir}/../config/default.mt
 
 if test "${with_multisubdir}" = "m32"; then
   LD_TYPE="m32"

libgloss/iq2000/configure.in

@@ -46,6 +46,7 @@ AC_PROG_RANLIB
 LIB_AM_PROG_AS
 
 host_makefile_frag=${srcdir}/../config/default.mh
+target_makefile_frag=${srcdir}/../config/default.mt
 
 if test "${with_multisubdir}" = "m32"; then
   LD_TYPE="m32"

libgloss/visium/configure

@@ -1946,6 +1946,7 @@ test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
 
 
 host_makefile_frag=${srcdir}/../config/default.mh
+target_makefile_frag=${srcdir}/../config/default.mt
 
 host_makefile_frag_path=$host_makefile_frag
 

libgloss/visium/configure.in

@@ -33,6 +33,7 @@ AC_PROG_RANLIB
 LIB_AM_PROG_AS
 
 host_makefile_frag=${srcdir}/../config/default.mh
+target_makefile_frag=${srcdir}/../config/default.mt
 
 dnl We have to assign the same value to other variables because autoconf
 dnl doesn't provide a mechanism to substitute a replacement keyword with