[Simh] BUGREPORT: clock_getres()

[Davis Johnson]

Lyle Bickley wrote:

>On Saturday 26 April 2008 13:52, Alexander Voropay wrote:
>  
>
>>Hi!
>>
>> On some systems (i.e. RedHat AS 4.4) clock_getres() function resides
>>in the librt library.
>>
>> The man clock_getres states:
>>
>>=========
>>NOTE
>>      Most systems require the program be linked with the librt  library 
>>to use these functions.
>>
>>AVAILABILITY
>>      On  POSIX  systems  on which these functions are available, the
>>symbol _POSIX_TIMERS is defined in <unistd.h> to a value greater than 0. 
>>The symbols  _POSIX_MONOTONIC_CLOCK, _POSIX_CPUTIME, _POSIX_THREAD_CPUTIME
>>indicate     that      CLOCK_MONOTONIC,      CLOCK_PROCESS_CPUTIME_ID,
>>CLOCK_THREAD_CPUTIME_ID are available.  (See also .BR sysconf (3).)
>>============
>>
>>Could you please add "-l rt" in the makefile if _POSIX_TIMERS is defined ?
>>
>> I personally did q'n'dirty patch to compile SIMH on the RHAS 4.4
>>-D_GNU_SOURCE -lrt
>>
>>
>>Also, BIN directory does not exist and make does not creares it
>>automatically.
>>    
>>
>
>I also commented on this bug recently, see:
>---------------------------------------------------------------------------
>  
>
>>Attempting to compile SIMH for any system with release 37-2 or
>>37-3 on openSUSE or Kubuntu Linux produced the following error:
>>---------------------------------------------------------
>>/home/lpb/simh/sim_timer.c:302: undefined reference to
>>`clock_getres' collect2: ld returned 1 exit status
>>make: *** [BIN/pdp1] Error 1
>>---------------------------------------------------------
>>    
>>
>
>Here's a solution - it permits different CC options for 'macos',
>'linux', and others:
>==================================================================
>diff makefile.orig makefile
>12a13
>  
>
>>CC = gcc -std=c99 -O2 -U__STRICT_ANSI__ -g -lm $(OS_CCDEFS) -I .
>>    
>>
>15,16c16,18
>< else
>< CC = gcc -std=c99 -O2 -U__STRICT_ANSI__ -g -lm $(OS_CCDEFS) -I .
>---
>  
>
>>endif
>>ifeq ($(OSTYPE),linux)
>>CC = gcc -std=c99 -O2 -U__STRICT_ANSI__ -g -lm -lrt 
>>    
>>
>$(OS_CCDEFS) -I .
>===================================================================
>
>I like Alexander's patch suggestion, too - maybe a bit more than mine ;-)
>
>At any rate a couple of questions (I'm new on the list):
>
>1) Is this the correct forum to suggest bugs and fixes?
>2) Is there a "bugzilla" or similar means to log and track bugs, fixes, etc?
>
>Cheers,
>Lyle
>
>  
>
The attached makefile works with linux, solaris and OS-X. It requires 
that OSTYPE be exported.

This comes up frequently.
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