Re: [exim] Error compile exim 4.94.2

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Autor: Viktor Dukhovni
Data:  
A: exim-users
Assumpte: Re: [exim] Error compile exim 4.94.2
On Wed, May 05, 2021 at 06:04:11PM +0200, Sławomir Dworaczek via Exim-users wrote:


> exim.o: In function `exim_gettime':
> exim.c:(.text+0xfbe): undefined reference to `clock_gettime'
> exim.o: In function `main':
> exim.c:(.text+0x1894): undefined reference to `clock_gettime'
> collect2: ld returned 1 exit status
> make[1]: *** [exim] Error 1
>
> gcc version 4.5.2 (GCC)


What operating system and Glibc (or other C library) version?

On a Fedora 31 system:

    NAME
           clock_getres, clock_gettime, clock_settime - clock and time functions


    SYNOPSIS
           #include <time.h>


           int clock_getres(clockid_t clk_id, struct timespec *res);


           int clock_gettime(clockid_t clk_id, struct timespec *tp);


           int clock_settime(clockid_t clk_id, const struct timespec *tp);


--->       Link with -lrt (only for glibc versions before 2.17).


       Feature Test Macro Requirements for glibc (see feature_test_macros(7)):                                                                                                             
           clock_getres(), clock_gettime(), clock_settime():
                  _POSIX_C_SOURCE >= 199309L


On a FreeBSD 12.2 system these functions are in the C library, and the
manpage reports:

    STANDARDS
         The clock_gettime(), clock_settime(), and clock_getres() system calls
         conform to IEEE Std 1003.1b-1993 (“POSIX.1b”).


-- 
    Viktor.