Fix test for uintptr_t. Fixes #1568842.
Will backport.
diff --git a/configure.in b/configure.in
index 3a27294..6fd8fdf 100644
--- a/configure.in
+++ b/configure.in
@@ -1197,16 +1197,10 @@
AC_CHECK_SIZEOF(long long, 8)
fi
-AC_MSG_CHECKING(for uintptr_t support)
-have_uintptr_t=no
-AC_TRY_COMPILE([], [uintptr_t x; x = (uintptr_t)0;], [
- AC_DEFINE(HAVE_UINTPTR_T, 1, [Define this if you have the type uintptr_t.])
- have_uintptr_t=yes
-])
-AC_MSG_RESULT($have_uintptr_t)
-if test "$have_uintptr_t" = yes ; then
-AC_CHECK_SIZEOF(uintptr_t, 4)
-fi
+AC_CHECK_TYPES(uintptr_t,
+ [AC_CHECK_SIZEOF(uintptr_t, 4)],
+ [], [#include <stdint.h>])
+
# Hmph. AC_CHECK_SIZEOF() doesn't include <sys/types.h>.
AC_MSG_CHECKING(size of off_t)