Roger Leigh schrieb:
Bill Wendling <[EMAIL PROTECTED]> writes:I want to produce a help string like this: --with-foo[=DIR] Use the foo package (note the []s around the =DIR bit). When I use the option like this: AC_ARG_WITH([foo], [AC_HELP_STRING([--with-foo[=DIR]], [Use the foo package])],,) It produces: --with-foo=DIR Use the foo package Is there a way to make it produce the []s that I want?I've used quadrigraphs in the past, but AC_HELP_STRING is doing something wierd with the quoting (I've tried changing the quotes, extra quoting, etc., but without success). When I have managed to get `[' and `]' to appear, the formatting is then broken...
exactly! I did just have a look into some of my projects and noticed that every of those --with-off[=DIR] was done without AC_HELP_STRING. I had just trying various combinations in the last hour, and it seems that the "[" are counted for the length of the first argument but they will not be printed - here is an example where I did only try to change the first _WITH to use AC_HELP_STRING: Optional Packages: --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no) --with-gnu-ld assume the C compiler uses GNU ld default=no --with-pic try to use only PIC/non-PIC objects default=use both --with-pcre=prefix compile xmlpcre part (via libpcre check) --with-pfe[=prefix] scan pfe documentation (the C files) That's actually quite weird - so the ac_help_string macro will count the chars of the argument literal in full glory but the [] brackets get interpreted as m4 quotations later - after the indent computations. hmmm. (using 2.52...)
