Added USE_DLL variable and its controls.

Takes care of a bug that krept in for compiles with MSVC++v.6.0 while
trying to stand up MSVC++v7.0 compiles.

Makefile.in

@@ -19,6 +19,7 @@ os_is_win = @OS_IS_WIN@
 incl_user_code = @INCL_USER_CODE@
 do_ranlib = @DO_RANLIB@
 compact_install = @COMPACT_INSTALL@
+use_dll = @USE_CLIB_DLL@
 
 prefix=@prefix@
 
@@ -98,8 +99,10 @@ win-kernel-install:
 	@INSTALL@ -d @ct_libdir@
 	rm -f @ct_libdir@/*
 	@INSTALL@ -m 644 @buildlib@/*.lib @ct_libdir@
+ifeq ($(use_dll),1)
 	@INSTALL@ -m 644 @buildlib@/*.dll @ct_libdir@
 	@INSTALL@ -m 644 @buildlib@/*.exp @ct_libdir@
+endif
 
 data-install:
 	@INSTALL@ -d @ct_datadir@

configure

@@ -59,6 +59,11 @@ USE_VISUAL_STUDIO=${USE_VISUAL_STUDIO:="y"}
 # build the Matlab interface. 
 FORTRAN_LIB_DIR="D:\Program Files\Microsoft Visual Studio\DF98\LIB"
 
+#
+# If you are using Visual Studio, set this variable to indicates 
+# whether you want to use DLL's. Note you need this for MSVCv7.0
+# but this is turned off for MSVCv6.0
+# USE_DLL=yes
 
 #----------------------------------------------------------------------
 #         Language Interfaces