made the check for needed underscore in module's func-names work on

made the check for needed underscore in module's func-names work on

1998-10-20  Sebastian Wilhelmi  <wilhelmi@ira.uka.de>

	* configure.in: made the check for needed underscore in module's
	func-names work on solaris. (G_MODULE_NEED_USCORE must be set
	outside AC_CACHE_VAL, dlopen(0,0) refused to work on solaris).