+2021-10-24 Bruno Haible <bruno@clisp.org>
+
+ string: Avoid syntax error re strdup in string.in.h (regr. 2021-09-07).
+ Reported by Jan Engelhardt <jengelh@inai.de>
+ and by Arash Esbati <arash@gnu.org> via Andy Moreton in
+ <https://lists.gnu.org/archive/html/bug-gnulib/2021-10/msg00058.html>.
+ * lib/string.in.h (_GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_DEALLOC_FREE,
+ _GL_ATTRIBUTE_MALLOC): Add fallback declarations, like in
+ lib/stdlib.in.h.
+ * lib/wchar.in.h (_GL_ATTRIBUTE_DEALLOC, _GL_ATTRIBUTE_DEALLOC_FREE,
+ _GL_ATTRIBUTE_MALLOC): Likewise.
+
2021-10-19 Paul Eggert <eggert@cs.ucla.edu>
xalloc: new function xinmalloc
# include <strings.h>
#endif
+/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
+ that can be freed by passing them as the Ith argument to the
+ function F. */
+#ifndef _GL_ATTRIBUTE_DEALLOC
+# if __GNUC__ >= 11
+# define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i)))
+# else
+# define _GL_ATTRIBUTE_DEALLOC(f, i)
+# endif
+#endif
+
+/* _GL_ATTRIBUTE_DEALLOC_FREE declares that the function returns pointers that
+ can be freed via 'free'; it can be used only after declaring 'free'. */
+/* Applies to: functions. Cannot be used on inline functions. */
+#ifndef _GL_ATTRIBUTE_DEALLOC_FREE
+# define _GL_ATTRIBUTE_DEALLOC_FREE _GL_ATTRIBUTE_DEALLOC (free, 1)
+#endif
+
+/* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly
+ allocated memory. */
+/* Applies to: functions. */
+#ifndef _GL_ATTRIBUTE_MALLOC
+# if __GNUC__ >= 3 || defined __clang__
+# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
+# else
+# define _GL_ATTRIBUTE_MALLOC
+# endif
+#endif
+
/* The __attribute__ feature is available in gcc versions 2.5 and later.
The attribute __pure__ was added in gcc 2.96. */
#ifndef _GL_ATTRIBUTE_PURE
#ifndef _@GUARD_PREFIX@_WCHAR_H
#define _@GUARD_PREFIX@_WCHAR_H
+/* _GL_ATTRIBUTE_DEALLOC (F, I) declares that the function returns pointers
+ that can be freed by passing them as the Ith argument to the
+ function F. */
+#ifndef _GL_ATTRIBUTE_DEALLOC
+# if __GNUC__ >= 11
+# define _GL_ATTRIBUTE_DEALLOC(f, i) __attribute__ ((__malloc__ (f, i)))
+# else
+# define _GL_ATTRIBUTE_DEALLOC(f, i)
+# endif
+#endif
+
+/* _GL_ATTRIBUTE_DEALLOC_FREE declares that the function returns pointers that
+ can be freed via 'free'; it can be used only after declaring 'free'. */
+/* Applies to: functions. Cannot be used on inline functions. */
+#ifndef _GL_ATTRIBUTE_DEALLOC_FREE
+# define _GL_ATTRIBUTE_DEALLOC_FREE _GL_ATTRIBUTE_DEALLOC (free, 1)
+#endif
+
+/* _GL_ATTRIBUTE_MALLOC declares that the function returns a pointer to freshly
+ allocated memory. */
+/* Applies to: functions. */
+#ifndef _GL_ATTRIBUTE_MALLOC
+# if __GNUC__ >= 3 || defined __clang__
+# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
+# else
+# define _GL_ATTRIBUTE_MALLOC
+# endif
+#endif
+
/* The __attribute__ feature is available in gcc versions 2.5 and later.
The attribute __pure__ was added in gcc 2.96. */
#ifndef _GL_ATTRIBUTE_PURE