Commit 15ce5a630b02af7c7104650dfb18e443b4111564
2020-08-16T12:12:32
Assume autoconf >= 2.64. * gnulib-tool (DEFAULT_AUTOCONF_MINVERSION): Set to 2.64. * DEPENDENCIES: Require Autoconf 2.64 or newer. * NEWS: Mention the changed requirement. * m4/00gnulib.m4 (_m4_divert_diversion, AC_DEFUN_ONCE): Remove macros. * m4/gnulib-common.m4 (AS_VAR_IF, AS_VAR_COPY): Remove macros. * m4/absolute-header.m4 (gl_ABSOLUTE_HEADER): Quote pushdef'ed variables. * m4/include_next.m4 (gl_NEXT_HEADERS_INTERNAL): Likewise. * m4/warn-on-use.m4 (gl_WARN_ON_USE_PREPARE): Likewise. * m4/warnings.m4 (gl_COMPILER_OPTION_IF): Likewise. (gl_UNKNOWN_WARNINGS_ARE_ERRORS(C), gl_UNKNOWN_WARNINGS_ARE_ERRORS(C++), gl_UNKNOWN_WARNINGS_ARE_ERRORS(Objective C)): Define through AC_DEFUN. * m4/manywarnings.m4 (gl_MANYWARN_ALL_GCC(C), gl_MANYWARN_ALL_GCC(C++)): Likewise. * m4/iconv.m4 (AM_ICONV): Define through AC_DEFUN_ONCE directly. * m4/libunistring.m4 (gl_LIBUNISTRING): Likewise. * m4/configmake.m4: Update comment.