[PATCH] gdb/configure: Replace hardcoded -ldl with check based on dlfcn.h availability

[Tom Tromey]

Mark> The fix isn't quite right.  OpenBSD for example has <dlfcn.h> but no
Mark> libdl; dlopen(3) and friends live in libc.

Pavel> Hi Mark,
Pavel> Thanks for your comments. Please see new patch attached.

Pavel> -    LIBS="-ldl $LIBS"
Pavel> +    AC_CHECK_LIB(dl, dlopen)

I think it is probably better to use AC_SEARCH_LIBS.

Tom