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McZonk
Joined: 14 Jul 2005
Posts: 35
Location: Germany
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 Posted: Sat Aug 06, 2005 4:41 pm Post subject: Another issue with sinf cosf and sqrtf (External Lib) |
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I'm working on a math library for the PSP in C.
| Code: | float float2_length(float2* a) {
return sqrtf(a->x * a->x + a->y * a->y);
} |
And a lot of stuff like this. I compile this lib with psp-gcc and make an static library with psp-ar.
Then I add the lib path and the library to my psp-project Makefile, but when I compile this i get an linker error: undefined refernce to sqrtf.
I can use the sqrtf function in the psp-project without getting this error. So I tried to add the math library (-lm) and path to the library Makefile, but that didn't solve it. The confusing thing is, I can use some other functions in my library with out getting linker errors. I used the sceIo... functions and it work. Why not the math functions?
Yes i tried to search for this problem and found a lot of sqrtf problems, but using sqrtf in my main.c is not the problem. Install new toolchain and sdk didn't fix it too. |
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chp
Joined: 23 Jun 2004
Posts: 313
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| Posted: Sat Aug 06, 2005 5:35 pm Post subject: |
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Make sure you place -lm AFTER your library in the library-order. When using GCC, link-order matters.
_________________
GE Dominator |
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McZonk
Joined: 14 Jul 2005
Posts: 35
Location: Germany
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| Posted: Sat Aug 06, 2005 5:44 pm Post subject: |
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Solved. thx chp!
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