Perl with SerialPort

curator alexander.pohl@rwth-aachen.de
Thu Feb 14 22:52:00 GMT 2008


Hi, 
I tried to install Device::serialport i downloaded from cpan page.

i extracted it and startet
perl Makefile.PL

This ended with some error which is logged in config.log.

Here is the part of it, which shows the error

configure:2084: gcc    conftest.c  >&5
gcc: installation problem, cannot exec `as': No such file or directory
configure:2087: $? = 1
configure:2125: result: 
configure: failed program was:
| /* confdefs.h.  */
| #define PACKAGE_NAME "Device::SerialPort"
| #define PACKAGE_TARNAME "device--serialport"
| #define PACKAGE_VERSION "1.04"
| #define PACKAGE_STRING "Device::SerialPort 1.04"
| #define PACKAGE_BUGREPORT "devser-bugs@outflux.net"
| /* end confdefs.h.  */
| 
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:2132: error: C compiler cannot create executables

Thanks for help again!

Alex

Dave Korn wrote:
> 
> On 13 February 2008 22:59, Dave Korn wrote:
> 
>> On 13 February 2008 22:46, Dave Korn wrote:
>> 
>>> On 13 February 2008 21:23, curator wrote:
>>> 
>>>> So the question is: i would like to prefer no 2. For that i have to
>>>> install SerialPort for Perl for cygwin.
>>>> 
>>>> Is this possible, and if yes, could you tell me how?
>>> 
>>>   I'm no perl expert,
>> 
>>   Still true, but I've found one thing out since sending that: 
> 
>   Still true, but I've found another:
> 
>> Running make test
>> /usr/bin/perl.exe "-MExtUtils::Command::MM" "-e" "test_harness(0,
>> 'blib/lib', 'blib/arch')" t/*.t 
>> t/01timing.............ok 4/7
>> t/01timing.............NOK 7#     Failed test (t/01timing.t at line 33)
>> # then: 207441765 now: 207443905 diff: 2140
>> # Looks like you failed 1 test of 7.
>> t/01timing.............dubious
> 
>   That diff is absolutely reliably consistently 2140 for me.  I'd
> speculate
> that maybe the cygwin signal emulation requires a context switch or two,
> to or
> away from the signal processing thread, and so we're seeing an extra
> quantum
> or two of constant overhead for systematic reasons.  So...
> 
>> looking at 01timing.t:- 
> 
>   Well, editing it in ~/.cpan/build/Device-SerialPort-1.04/t/, to be
> exact:
> 
>> # Allow 100ms fudge-time for slow calls, etc
>> ok( ($now-$then) <= 2100, "measured sleep as less than 2 seconds")
>> 	or diag("then: $then now: $now diff: ".($now-$then)); # test
> 
>   Change that to "100ms" and "<= 2200" and it goes ahead and installs.
> 
> 
>     cheers,
>       DaveK
> -- 
> Can't think of a witty .sigline today....
> 
> 
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