error: avoid expand-before-require warning

[pspp] / ChangeLog

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@@ -1,5 +1,12 @@
 2009-01-21  Eric Blake  <ebb9@byu.net>
 
+       error: avoid expand-before-require warning
+       * modules/errno (configure.ac): Require, rather than expand,
+       gl_HEADER_ERRNO_H.
+       * m4/errno_h.m4 (gl_HEADER_ERRNO_H_BODY): Merge...
+       (gl_HEADER_ERRNO_H): ...into this macro, and use AC_DEFUN_ONCE to
+       enforce that all clients require it.
+
        gnulib-tool: avoid warnings from using obsolete AC_GNU_SOURCE
        * gnulib-tool (func_dest_tmpfilename, func_create_testdir): Using
        obsolete AC_GNU_SOURCE causes out-of-order expansion; avoid it,