PR libfortran/26540

	* intrinsics/signal.c (signal_sub, signal_sub_int): Use intptr_t
	if available to cast function pointers to int and back.
	* configure.ac: Check for intptr_t.
	* config.h.in: Regenerate.
	* configure: Regenerate.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@117556 138bc75d-0d04-0410-961f-82ee72b054a4