Re: Present-But-Cannot-Be-Compiled bug

[Jorma Karvonen]

2009/10/17, Eric Blake <address@hidden>:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Please don't top-post on technical lists.
>
> According to Jorma Karvonen on 10/16/2009 12:59 PM:
>> checking whether gettimeofday clobbers localtime buffer... yes
>> checking sys/timeb.h usability... no
>> checking sys/timeb.h presence... yes
>> configure: WARNING: sys/timeb.h: present but cannot be compiled
>> configure: WARNING: sys/timeb.h:     check for missing prerequisite
>> headers?
>> configure: WARNING: sys/timeb.h: see the Autoconf documentation
>> configure: WARNING: sys/timeb.h:     section "Present But Cannot Be
>> Compiled"
>> configure: WARNING: sys/timeb.h: proceeding with the compiler's result
>
> Looking more at your config.log, I see:
>
>> configure:14781: checking sys/timeb.h usability
>> configure:14781: gcc -std=gnu99 -c -g -O2  conftest.c >&5
>> In file included from /usr/include/stdio.h:34,
>>                  from conftest.c:136:
>> /usr/local/lib/gcc/i686-pc-linux-gnu/4.3.4/include/stddef.h:214: error:
>> duplicate 'unsigned'
>> /usr/local/lib/gcc/i686-pc-linux-gnu/4.3.4/include/stddef.h:214: error:
>> two or more data types in declaration specifiers
>> In file included from /usr/include/inttypes.h:28,
>>                  from conftest.c:161:
>> /usr/include/stdint.h:139: error: 'long long long' is too long for GCC
>> /usr/include/stdint.h:139: error: 'long long long' is too long for GCC
>
> What is at line 214 of that stddef.h file, and line 139 of stdint.h?  It
> might be a macro being previously (but incorrectly) redefined by
> configure?  This may also be a case where your system headers came from a
> different version of glibc and gcc than what you are now using, so that
> there are some unexpected conflicts due to newer semantics of an updated
> compiler.

Sorry, I replied already to other email before I noticed this one:

/usr/include/stdint.h:
/* Largest integral types.  */
#if __WORDSIZE == 64
typedef long int                intmax_t;
typedef unsigned long int       uintmax_t;
#else
__extension__
typedef long long int           intmax_t;   <=== LINE 139
__extension__
typedef unsigned long long int  uintmax_t;
#endif

/usr/local/lib/gcc/i686-pc-linux-gnu/4.3.4/include/stddef.h:

#if !(defined (__GNUG__) && defined (size_t))
typedef __SIZE_TYPE__ size_t;  <=== LINE 214

br,

Jorma K.
>
>>
>> I will email config.log to you only Eric with my next email.
>
> Sorry - I saw that mail before this one, so my response to that mail was
> lacking this context.  This mail certainly fills in some of the gaps that
> I wasn't seeing in the other one.
>
> - --
> Don't work too hard, make some time for fun as well!
>
> Eric Blake             address@hidden
> -----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/
>
> iEYEARECAAYFAkrY+8cACgkQ84KuGfSFAYC7xQCgicGgZIRd6ZhD3nbwlq9fFz4z
> YIAAoJbRAho6F84KFWC5h/632bmypV8V
> =GrZ4
> -----END PGP SIGNATURE-----
>