+ * c-stack.m4: New file, from diffutils-2.8.2.
+ * prereq.m4 (jm_PREREQ): Add jm_PREREQ_C_STACK.
+
+ * jm-macros.m4 (jm_CHECK_ALL_TYPES): Don't require AC__GNU_SOURCE,
+ now that configure.ac uses AC_GNU_SOURCE.
+ (jm_MACROS): Rename: jm_FUNC_FNMATCH to AC_FUNC_FNMATCH_GNU.
+ * prereq.m4 (jm_PREREQ_EXCLUDE): Likewise, wrt jm_FUNC_FNMATCH.
+