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!
