Issue 10052: fix failed uint32_t / uint64_t / int32_t / int64_t detection on some platforms.
diff --git a/configure.ac b/configure.ac
index 97332af..ccb42d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1469,10 +1469,30 @@
AC_DEFINE_UNQUOTED([RETSIGTYPE],[void],[assume C89 semantics that RETSIGTYPE is always void])
AC_TYPE_SIZE_T
AC_TYPE_UID_T
+
+# There are two separate checks for each of the exact-width integer types we
+# need. First we check whether the type is available using the usual
+# AC_CHECK_TYPE macro with the default includes (which includes <inttypes.h>
+# and <stdint.h> where available). We then also use the special type checks of
+# the form AC_TYPE_UINT32_T, which in the case that uint32_t is not available
+# directly, #define's uint32_t to be a suitable type.
+
+AC_CHECK_TYPE(uint32_t,
+ AC_DEFINE(HAVE_UINT32_T, 1, [Define if your compiler provides uint32_t.]),,)
AC_TYPE_UINT32_T
+
+AC_CHECK_TYPE(uint64_t,
+ AC_DEFINE(HAVE_UINT64_T, 1, [Define if your compiler provides uint64_t.]),,)
AC_TYPE_UINT64_T
+
+AC_CHECK_TYPE(int32_t,
+ AC_DEFINE(HAVE_INT32_T, 1, [Define if your compiler provides int32_t.]),,)
AC_TYPE_INT32_T
+
+AC_CHECK_TYPE(int64_t,
+ AC_DEFINE(HAVE_INT64_T, 1, [Define if your compiler provides int64_t.]),,)
AC_TYPE_INT64_T
+
AC_CHECK_TYPE(ssize_t,
AC_DEFINE(HAVE_SSIZE_T, 1, [Define if your compiler provides ssize_t]),,)