-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Stepan Kasal on 6/5/2008 10:28 AM: | Hello,
Hi Stepan, Ralf, | | I'd like to propose a solution, please speak up if you are not | satisfied with it. (If we reach an agreement, I'm willing to prepare | a patch later.) Well, now that Ralf has patched the code to strip comments after #undef lines in the template file, we really ought to tighten the documentation. ~ Any volunteers? | | First, let me state that, strictly speaking, this is not a | regression. The Autoconf manual says that the #undef line cannot | contain anything after the symbol. And in that case, all versions | tested by Ralf do the same. | | | I suggest to add a note to the manual along these lines: | | `` | Generally speaking, all #define and #undef directives in the header | template may be modified by config.status, under some circumstances. | Consequently, if you need to define or undefine a symbol under some | circumstances (#ifdef THIS #define THAT, etc.), you should place | those directives outside the config headers. If you absolutely need | to hook that to the config header itself, please put these directives | to a separate file, and #include it from the config header template. | (If you are using autoheader, you would probably use AH_TOP or | AH_BOTTOM to inject the #include directive. | | For certain symbold it is important to avoid #undef ... [explanation | about _POSIX_WHATEVER]. | To achive this, current Autoconf comments out _all_ remaining #undef | directives remaining in the config header at the end of the | instatiation, but this may change in future releases. | '' | | WDYT? Looks like a reasonable start, but be careful for typos (such as symbold). ~ I'll gladly review a texinfo-markup version, if I don't get around to writing one first. - -- Don't work too hard, make some time for fun as well! Eric Blake [EMAIL PROTECTED] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkhYfxQACgkQ84KuGfSFAYD07QCgnoNA+RKqDnIIhTy1QC6qq5bA 3GUAnj7+b0ccAww0vTnnmGx5ESBcI53d =Xrl5 -----END PGP SIGNATURE-----
