Define AC_LIBTOOL_WIN32_DLL to build clean dlls

on Win32 platforms.
Define extra compiler flags necessary to build clean dlls.

diff --git a/guile-readline/configure.in b/guile-readline/configure.in
index ef62338..c6162e0 100644 (file)
--- a/guile-readline/configure.in
+++ b/guile-readline/configure.in
@@ -6,10 +6,25 @@ AC_CONFIG_SRCDIR([readline.c])
 PACKAGE=guile-readline
 AM_INIT_AUTOMAKE($PACKAGE, $VERSION, no-define)
 
+AC_PROG_INSTALL
 AC_PROG_CC
 AM_PROG_CC_STDC
+AC_LIBTOOL_WIN32_DLL
 AM_PROG_LIBTOOL
 
+dnl
+dnl Check for Winsock and other functionality on Win32 (*not* CygWin)
+dnl
+AC_CYGWIN
+AC_MINGW32
+EXTRA_DEFS=""
+if test "$MINGW32" = "yes" ; then
+    if test $enable_shared = yes ; then
+      EXTRA_DEFS="-D__SCM_IMPORT__ -D__READLINE_IMPORT__"
+    fi
+fi
+AC_SUBST(EXTRA_DEFS)
+
 for termlib in ncurses curses termcap terminfo termlib ; do
    AC_CHECK_LIB(${termlib}, tgoto, 
                 [LIBS="-l${termlib} $LIBS"; break])