branch-1_4 use of inline

[Eric Blake]

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Based on recent gnulib traffic, inline isn't always what it is cracked up
to be.  Without this patch, compiling with 'gcc -fno-inline' resulted in
multiple copies of to_uchar.

2006-11-11  Eric Blake  <address@hidden>

        * src/m4.h (to_uchar): Depend on HAVE_INLINE.

Index: src/m4.h
===================================================================
RCS file: /sources/m4/m4/src/m4.h,v
retrieving revision 1.1.1.1.2.34
diff -u -p -r1.1.1.1.2.34 m4.h
- --- src/m4.h    8 Nov 2006 05:08:26 -0000       1.1.1.1.2.34
+++ src/m4.h    11 Nov 2006 13:35:18 -0000
@@ -451,4 +451,8 @@ void reload_frozen_state (const char *);
 /* Convert a possibly-signed character to an unsigned character.  This is
    a bit safer than casting to unsigned char, since it catches some type
    errors that the cast doesn't.  */
+#if HAVE_INLINE
 static inline unsigned char to_uchar (char ch) { return ch; }
+#else
+# define to_uchar(C) ((unsigned char) (C))
+#endif

- --
Life is short - so eat dessert first!

Eric Blake             address@hidden
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