Changes between Version 31 and Version 32 of Ticket #38582, comment 6


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Timestamp:
Aug 7, 2013, 2:01:14 PM (11 years ago)
Author:
cooljeanius (Eric Gallager)
Comment:

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  • Ticket #38582, comment 6

    v31 v32  
    1 I don't think any of these macros can actually fail, so I don't see why they'd need fallback code. They're just for adding more information about the user's system to their `config.log` and to their `src/config.h` ~~(which I guess MacPorts doesn't use, but it could do so easily...)~~ and to the various other files that `autoconf` substitutes stuff in. Also it looks like a lot of the macros currently in `configure.ac` were originally added with an older version of `autoscan`, this would be just updating those to a more recent version. Anyway I'm planning on editing a table into this post showing more about these macros:
     1I don't think any of these macros can actually fail, so I don't see why they'd need fallback code. They're just for adding more information about the user's system to their `config.log` and to their `src/config.h` ~~(which I guess MacPorts doesn't use, but it could do so easily...)~~ and to the various other files that `autoconf` substitutes stuff in. Also it looks like a lot of the macros currently in `configure.ac` were originally added with an older version of `autoscan`, this would be just updating those to a more recent version. Anyway I've edited a table into this post showing more about these macros:
    22||= '''Macro''' =||= '''line of file `autoscan` wants it for''' =||= '''contents of line mentioned in previous column''' =||= '''context (how the line is used)''' =||= '''human explanation for how adding the macro will be useful (i.e. relevant comments)''' =||
    33|| `AC_CHECK_FUNCS([dup2])` || `src/darwintracelib1.0/darwintrace.c:1100` || `int dup2(int filedes, int filedes2) {` || new function declaration || `/* if darwintrace has been initialized, trap attempts to dup2 over our file descriptor */` (this function would only be useful if calls are being made to `dup2` in the first place, so check for it) ||