Re: gcc-4.2.4 bootstrap: multiple "declared 'static' but never defined" warnings in stage 3

Re: gcc-4.2.4 bootstrap: multiple "declared 'static' but never defined" warnings in stage 3

[t-rexky]

Hello again,

I completed the bootstrap process ignoring the stage 2 compiler warning.  The stage 3 compiler generates the same warnings,
but it does create good executable code.  I am currently running a make check-gcc that will take many hours on a 68040.

I am completely baffled by what could make gcc generate the warnings below for all declared functions, including the built-ins.
I would be very grateful for any suggestions or ideas.

Thank you!

On 2012-06-06, at 10:11 PM, t-rexky wrote:

> Compiling with the stage 2 xgcc -Wall or -Wunused generates an endless list of warnings of the following type:
> 
> <built-in>:0: warning: '__builtin_acos' declared 'static' but never defined
> <built-in>:0: warning: 'acos' declared 'static' but never defined
> 
> t-rexky

Re: gcc-4.2.4 bootstrap: multiple "declared 'static' but never defined" warnings in stage 3

[Ángel González]

> On 2012-06-06, at 10:11 PM, t-rexky wrote:
>
>> Compiling with the stage 2 xgcc -Wall or -Wunused generates an endless list of warnings of the following type:
>>
>> <built-in>:0: warning: '__builtin_acos' declared 'static' but never defined
>> <built-in>:0: warning: 'acos' declared 'static' but never defined
>>
>> t-rexky
>>

On 07/06/12 04:22, t-rexky wrote:
> Hello again,
>
> I completed the bootstrap process ignoring the stage 2 compiler warning.  The stage 3 compiler generates the same warnings,
> but it does create good executable code.  I am currently running a make check-gcc that will take many hours on a 68040.
>
> I am completely baffled by what could make gcc generate the warnings below for all declared functions, including the built-ins.
> I would be very grateful for any suggestions or ideas.
>
> Thank you!
Have you tried building a program which uses acos or __builtin_acos?

Eg.
#include <math.h>
#include <stdio.h>

int main() {
    printf("%lf\n", acos(0.5));
    return 0;
}

#include <math.h>
#include <stdio.h>

int main() {
    printf("%lf\n",  __builtin_acos(0.5));
    return 0;
}

(the first one may need to link with -lm, but not the second)

Re: gcc-4.2.4 bootstrap: multiple "declared 'static' but never defined" warnings in stage 3

[t-rexky]

Thank you very much for your response!

On 2012-06-07, at 4:52 PM, Ángel González wrote:

>> On 2012-06-06, at 10:11 PM, t-rexky wrote:
>> 
>>> Compiling with the stage 2 xgcc -Wall or -Wunused generates an endless list of warnings of the following type:
>>> 
>>> <built-in>:0: warning: '__builtin_acos' declared 'static' but never defined
>>> <built-in>:0: warning: 'acos' declared 'static' but never defined
>>> 
>>> t-rexky

> Have you tried building a program which uses acos or __builtin_acos?

Here are is the compiler and executable output with various compile options:

> Eg.
> #include <math.h>
> #include <stdio.h>
> 
> int main() {
>    printf("%lf\n", acos(0.5));
>    return 0;
> }

nextstep[Tests]$xgcc acos_test.c -o acos_test
<built-in>:0: warning: '__builtin_acos' used but never defined
/NextDeveloper/Headers/ansi/math.h:55: warning: 'acos' used but never defined
<built-in>:0: warning: '__builtin_printf' used but never defined
/NextDeveloper/Headers/ansi/stdio.h:123: warning: 'printf' used but never defined
nextstep[Tests]$./acos_test
1.047198

nextstep[Tests]$xgcc acos_test.c -o acos_test -O 
nextstep[Tests]$./acos_test 
1.047198

> #include <math.h>
> #include <stdio.h>
> 
> int main() {
>    printf("%lf\n",  __builtin_acos(0.5));
>    return 0;
> }

nextstep[Tests]$xgcc builtin_acos_test.c -o builtin_acos_test
<built-in>:0: warning: '__builtin_acos' used but never defined
/NextDeveloper/Headers/ansi/math.h:55: warning: 'acos' used but never defined
<built-in>:0: warning: '__builtin_printf' used but never defined
/NextDeveloper/Headers/ansi/stdio.h:123: warning: 'printf' used but never defined
nextstep[Tests]$./builtin_acos_test 
1.047198

nextstep[Tests]$xgcc builtin_acos_test.c -o builtin_acos_test -O   
nextstep[Tests]$./builtin_acos_test 
1.047198

nextstep[Tests]$xgcc builtin_acos_test.c -o builtin_acos_test -Wall
<built-in>:0: warning: '__builtin_acos' used but never defined
/NextDeveloper/Headers/ansi/math.h:55: warning: 'acos' used but never defined
<built-in>:0: warning: '__builtin_acosf' declared 'static' but never defined
<built-in>:0: warning: 'acosf' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acosh' declared 'static' but never defined
/NextDeveloper/Headers/ansi/math.h:24: warning: 'acosh' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acoshf' declared 'static' but never defined
<built-in>:0: warning: 'acoshf' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acoshl' declared 'static' but never defined
<built-in>:0: warning: 'acoshl' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acosl' declared 'static' but never defined
<built-in>:0: warning: 'acosl' declared 'static' but never defined
<built-in>:0: warning: '__builtin_asin' declared 'static' but never defined
/NextDeveloper/Headers/ansi/math.h:56: warning: 'asin' declared 'static' but never defined
<built-in>:0: warning: '__builtin_asinf' declared 'static' but never defined
<built-in>:0: warning: 'asinf' declared 'static' but never defined
<built-in>:0: warning: '__builtin_asinh' declared 'static' but never defined
/NextDeveloper/Headers/ansi/math.h:23: warning: 'asinh' declared 'static' but never defined
^C (I aborted here since xgcc spits out an endless list of similar warnings, but the resultant executable works)

nextstep[Tests]$xgcc builtin_acos_test.c -o builtin_acos_test -O -Wall
<built-in>:0: warning: '__builtin_acos' declared 'static' but never defined
/NextDeveloper/Headers/ansi/math.h:55: warning: 'acos' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acosf' declared 'static' but never defined
<built-in>:0: warning: 'acosf' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acosh' declared 'static' but never defined
/NextDeveloper/Headers/ansi/math.h:24: warning: 'acosh' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acoshf' declared 'static' but never defined
<built-in>:0: warning: 'acoshf' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acoshl' declared 'static' but never defined
<built-in>:0: warning: 'acoshl' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acosl' declared 'static' but never defined
<built-in>:0: warning: 'acosl' declared 'static' but never defined
<built-in>:0: warning: '__builtin_asin' declared 'static' but never defined
/NextDeveloper/Headers/ansi/math.h:56: warning: 'asin' declared 'static' but never defined
<built-in>:0: warning: '__builtin_asinf' declared 'static' but never defined
<built-in>:0: warning: 'asinf' declared 'static' but never defined
<built-in>:0: warning: '__builtin_asinh' declared 'static' but never defined
/NextDeveloper/Headers/ansi/math.h:23: warning: 'asinh' declared 'static' but never defined
^C (I aborted here since xgcc spits out an endless list of similar warnings, but the resultant executable works)

> (the first one may need to link with -lm, but not the second)
> 

I would appreciate any suggestions as to what might be going on since I am completely confused.

Thank you!

gcc-4.2.4 bootstrap: multiple "declared 'static' but never defined" warnings in stage 3

[t-rexky]

Hello,

I have been trying to port a reasonably recent version of gcc to a m68k NeXT running NEXTSTEP 3.3.  After many struggles and lots of help from the m68k debian ports team I was finally able to complete stage 2 of the bootstrap process.  The stage 2 compiler appears to be working well and producing good code, but I stopped the build of stage 3 because of an obscure issue that did not exist in the stage 1 compiler.

Compiling with the stage 2 xgcc -Wall or -Wunused generates an endless list of warnings of the following type:

<built-in>:0: warning: '__builtin_acos' declared 'static' but never defined
<built-in>:0: warning: 'acos' declared 'static' but never defined
<built-in>:0: warning: '__builtin_acosf' declared 'static' but never defined
<built-in>:0: warning: 'acosf' declared 'static' but never defined

<built-in>:0: warning: '__builtin_fprintf' declared 'static' but never defined
/NextDeveloper/Headers/ansi/stdio.h:119: warning: 'fprintf' declared 'static' but never defined
<built-in>:0: warning: '__builtin_fprintf_unlocked' declared 'static' but never defined
<built-in>:0: warning: 'fprintf_unlocked' declared 'static' but never defined

These occur on every source file for every built-in function declaration and every function declaration in the included header files.

I am struggling to identify the root cause of this issue and would very much appreciate any assistance.

t-rexky