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Eric Blake a3764451d3 Partial m4sugar merge from autoconf: m4_shiftn. 
* data/m4sugar/m4sugar.m4 (m4_shiftn): Faster implementation.
(m4_shift2, m4_shift3): New macros.
(m4_case, m4_bmatch, m4_bpatsubsts, m4_join): Adjust clients.
* data/c.m4 (b4_c_function_def, b4_c_ansi_function_def)
(b4_c_ansi_function_decl, b4_c_function_call): Likewise.
* data/java.m4 (b4_remove_comma): Likewise.

Signed-off-by: Eric Blake <[email protected]>
 2008-08-06 21:22:06 -06:00
Eric Blake 882a1fbf72 Partial m4sugar merge from autoconf: m4_wrap vs. m4 1.6. 
* data/m4sugar/m4sugar.m4 (m4_unquote, m4_wrap_lifo): New macros.
(m4_wrap): Guarantee FIFO order, in spite of m4 1.6.
(m4_init): Consolidate wrapped text into single m4_wrap.
* data/bison.m4 (b4_check_user_names_wrap): Stick with LIFO order
in wrapped text.

Signed-off-by: Eric Blake <[email protected]>
 2008-08-06 20:19:50 -06:00
Eric Blake dfcc595944 Partial m4sugar merge from autoconf: builtins, version.m4. 
* data/m4sugar/m4sugar.m4 (changeword): Nuke.
(m4_prepend): Remove, as it is unused and inherently quadratic,
whereas m4_append is linear in newer m4.
(m4_mkstemp): New builtin.
(m4_symbols): Make rename conditional.
(m4_version_prereq): Ensure fatal error if used in bison, which
intentionally lacks version.m4.

Signed-off-by: Eric Blake <[email protected]>
 2008-08-05 06:39:55 -06:00
Eric Blake a30e920d17 Fix comments in m4sugar. 
* data/m4sugar/m4sugar.m4: Comment changes, borrowed from autoconf.

Signed-off-by: Eric Blake <[email protected]>
 2008-08-05 06:34:24 -06:00