C/C++ Programming Help Thread

[Access_Denied]

This is basically exactly what you're looking for. I have it in my own thread somewhere, but I think the link is dead until I get a reliable server.
http://www.sendspace.com/file/ufgrtm

Is that Slasher's? Because I already have that. I got it now though. Thanks for your help.

[Slasher]

Previously Known As Slasher

Have a look at my sig, it's me :)

[Access_Denied]

Durr. God I'm stupid. I know that you're slasher. I just got you confused with homer because he posted too.

[hallo007]

when i was testing with loading backgrounds and cpu speed i get this error

//cpu speed changer

/* cpu speed changer created by hallo007 (8 september 2006)and produced by rp productions
   thnx to psp-programming for their tutorials
*/

#include <pspkernel.h> //alle codes voor de psp zodat schrijven gemmakelijker word
#include <pspdebug.h> //nodig voor text op het scherm te printen
#include <pspdisplay.h>
#include <pspctrl.h>
#include <stdio.h>
#include <psppower.h>



PSP_MODULE_INFO("cpu speed changer", 0, 1, 1);
/*
niets belangerijk we vertellen de psp de naam van het programma maar je kan het weglaten het is niet echt de naam dat op het scherm zal verschijnen
*/
#define printf pspDebugScreenPrintf
/*
we vertellen de compiller dat we screen gaan printen en om het gemmakelijk te maken zorgen we ervoor
dat de compiller vanaf nu prontf kan lezen
*/
/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;

          cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
          sceKernelRegisterExitCallback(cbid);

          sceKernelSleepThreadCB();

          return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
          int thid = 0;

          thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
}
//belangerijk altijd in code aanwezig zijn voor het sluiten enzovoort
int main() { //start een functie
pspDebugScreenInit();
SetupCallbacks(); //zorg ervoor dat de functie start
printf("rp productions"); //print text on screen
Image* menu;
menu = loadImage("menu.png")//laad afbeelding
SceCtrlData pad;//zo kan je de controls gebruiken
 if(pad.Buttons & PSP_CTRL_UP) {//zeg wat de psp moet doen met het indrukken van up
       int main(void) {
          scePowerSetClockFrequency(333, 333, 166);//zet de cpu speed
          }
          printf("cpu speed = 333, 333, 166"); //print text on screen
          }
 if(pad.Buttons & PSP_CTRL_DOWN) {//zeg wat de psp moet doen met het indrukken van down
       int main(void) {
          scePowerSetClockFrequency(222, 222, 111);//zet de cpu speed
          }
          printf("cpu speed = 222, 222, 111"); //print text on screen
          }            
sceKernelSleepThread(); // dit zorgt ervoor dat de psp een pause neemt waardoor je je functie kan zien
return 0; // het blift de functie  herhalen herhalen
}
/*
nu zeggen we dat de functie gedaan is en kan de psp eventueel de volgende functies uitvoeren of beter gezegd de ram blift de functie niet herladen
*/

//momenteel einde

[СУББОТА]

You just had the same error three days ago. I'm guessing the same fix will work a second time.

[Moonchild]

I told you before. Copy c:\cygwin\bin\cygwin1.dll to C:\windows\system32

[hallo007]

ow srry gays
i uploaded the wrong imgae xD

really srry
i m uploading the real image now
-= Double Post =-
oke now is it the good picture i did check it ;)

[Moonchild]

ow srry gays
i uploaded the wrong imgae xD

Who're you calling gay?
lol, j/k.

Anyway, you haven't included the graphics lib nor psppad.h.

[hallo007]

oke thnx

the problem is
if i take an snapshot i open it with paint and save it
but it saves always as naamloos (i dont changes the name
but i got many with that name:d
so i v got
naamloos.gif
naamloos.png
....

lol

[Moonchild]

You do know you can copy text from the cygwin window right?

Right click the title bar of your cygwin window

scroll down to "Edit"

when a menu pops up click on "Mark"

This will allow you to highlight anything within the cygwin window by holding down the left mouse button and dragging over the text

After highlighting what you want to copy just release the left mouse button and right click.

[hallo007]

//image viewer

/* image viewer created by hallo007 (8 september 2006)and produced by rp productions
   thnx to psp-programming for their tutorials
*/

#include <pspkernel.h> //alle codes voor de psp zodat schrijven gemmakelijker word
#include <pspdebug.h> //nodig voor text op het scherm te printen
#include <pspdisplay.h>
#include <pspctrl.h>
#include <stdio.h>
#include <psppower.h>
#include <pspctrl.h>
#include <pspgu.h>
#include <png.h>



#include "graphics.h"


PSP_MODULE_INFO("image viewer", 0, 1, 1);
/*
niets belangerijk we vertellen de psp de naam van het programma maar je kan het weglaten het is niet echt de naam dat op het scherm zal verschijnen
*/
#define printf pspDebugScreenPrintf
/*
we vertellen de compiller dat we screen gaan printen en om het gemmakelijk te maken zorgen we ervoor
dat de compiller vanaf nu prontf kan lezen
*/
/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;

          cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
          sceKernelRegisterExitCallback(cbid);

          sceKernelSleepThreadCB();

          return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
          int thid = 0;

          thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
}
//belangerijk altijd in code aanwezig zijn voor het sluiten enzovoort
int main() { //start een functie
pspDebugScreenInit();
SetupCallbacks(); //zorg ervoor dat de functie start
printf("rp productions"); //print text on screen
Image* menu;
menu = loadImage("menu.png")//laad afbeelding
SceCtrlData pad;//zo kan je de controls gebruiken
 if(pad.Buttons & PSP_CTRL_UP) {//zeg wat de psp moet doen met het indrukken van up
       int main(void) {
          scePowerSetClockFrequency(333, 333, 166);//zet de cpu speed
          }
          printf("cpu speed = 333, 333, 166"); //print text on screen
          }
 if(pad.Buttons & PSP_CTRL_DOWN) {//zeg wat de psp moet doen met het indrukken van down
       int main(void) {
          scePowerSetClockFrequency(222, 222, 111);//zet de cpu speed
          }
          printf("cpu speed = 222, 222, 111"); //print text on screen
          }            
sceKernelSleepThread(); // dit zorgt ervoor dat de psp een pause neemt waardoor je je functie kan zien
return 0; // het blift de functie  herhalen herhalen
}
/*
nu zeggen we dat de functie gedaan is en kan de psp eventueel de volgende functies uitvoeren of beter gezegd de ram blift de functie niet herladen
*/

//momenteel einde

still the same problems
-= Double Post =-

You do know you can copy text from the cygwin window right?

no i dindt now it thnx
-= Double Post =-
problems:


Roel [email protected] ~
$ cd projects/bet

Roel [email protected] ~/projects/bet
$ make
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall -c -o main.o mai
n.c
main.c:19:22: error: graphics.h: No such file or directory
main.c: In function 'main':
main.c:65: error: 'Image' undeclared (first use in this function)
main.c:65: error: (Each undeclared identifier is reported only once
main.c:65: error: for each function it appears in.)
main.c:65: error: 'menu' undeclared (first use in this function)
main.c:66: warning: implicit declaration of function 'loadImage'
main.c:67: error: syntax error before 'SceCtrlData'
main.c:68: error: 'pad' undeclared (first use in this function)
main.c:69: warning: 'main' is normally a non-static function
main.c:75: warning: 'main' is normally a non-static function
make: *** [main.o] Error 1
-= Double Post =-
and dont forget still a dummie ad c/c++

[Moonchild]

You never included psppad.h, and did you add graphics.c and framebuffer.c to your OBJS in your makefile?

[hallo007]

o now forgotten , i m a dumbass ;)

thnx
-= Double Post =-
still problems this is my makefile

TARGET = hello
OBJS = main.o graphics.o framebuffer.o

CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

LIBDIR =
LIBS = -lpspgu -lpng -lz -lm
LDFLAGS =

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = Image Example

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak

and the main.c

//image viewer

/* image viewer created by hallo007 (8 september 2006)and produced by rp productions
   thnx to psp-programming for their tutorials
*/

#include <pspkernel.h> //alle codes voor de psp zodat schrijven gemmakelijker word
#include <pspdebug.h> //nodig voor text op het scherm te printen
#include <pspdisplay.h>
#include <pspctrl.h>
#include <stdio.h>
#include <psppower.h>
#include <pspctrl.h>
#include <pspgu.h>
#include <png.h>

#include <psppad.h>



#include "graphics.h"


PSP_MODULE_INFO("image viewer", 0, 1, 1);
/*
niets belangerijk we vertellen de psp de naam van het programma maar je kan het weglaten het is niet echt de naam dat op het scherm zal verschijnen
*/
#define printf pspDebugScreenPrintf
/*
we vertellen de compiller dat we screen gaan printen en om het gemmakelijk te maken zorgen we ervoor
dat de compiller vanaf nu prontf kan lezen
*/
/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;

          cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
          sceKernelRegisterExitCallback(cbid);

          sceKernelSleepThreadCB();

          return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
          int thid = 0;

          thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
}
//belangerijk altijd in code aanwezig zijn voor het sluiten enzovoort
int main() { //start een functie
pspDebugScreenInit();
SetupCallbacks(); //zorg ervoor dat de functie start
printf("rp productions"); //print text on screen
Image* menu;
menu = loadImage("menu.png")//laad afbeelding
SceCtrlData pad;//zo kan je de controls gebruiken
 if(pad.Buttons & PSP_CTRL_UP) {//zeg wat de psp moet doen met het indrukken van up
       int main(void) {
          scePowerSetClockFrequency(333, 333, 166);//zet de cpu speed
          }
          printf("cpu speed = 333, 333, 166"); //print text on screen
          }
 if(pad.Buttons & PSP_CTRL_DOWN) {//zeg wat de psp moet doen met het indrukken van down
       int main(void) {
          scePowerSetClockFrequency(222, 222, 111);//zet de cpu speed
          }
          printf("cpu speed = 222, 222, 111"); //print text on screen
          }            
sceKernelSleepThread(); // dit zorgt ervoor dat de psp een pause neemt waardoor je je functie kan zien
return 0; // het blift de functie  herhalen herhalen
}
/*
nu zeggen we dat de functie gedaan is en kan de psp eventueel de volgende functies uitvoeren of beter gezegd de ram blift de functie niet herladen
*/

//momenteel einde

-= Double Post =-
do somone see it in the code
because i mixed some tutorials
-= Double Post =-
no one????:s:s

[Grimfate126]

question:

im using OSlib, and i want to print a variable (integer) to the screen. i dont get how. i tried sprintf, dont work. i checks the docs, but i guess is missed, and i RLY dont wnat to read 1mb worth of text all over again.

so my question is:

how do you print variables to the screen in OSlib?

[СУББОТА]

how do you print variables to the screen in OSlib?

Quick and dirty integer printing:

char temp[64];
int i = 1;
snprintf(temp, 63, "The value of i is %d", i);
oslPrintf_xy(1, 5, temp);

[Vaza]

I know this may seem a noobish question but...
When you create an eboot, how do you use a C++ instead of a C file(as shown in a tutorial im veiwing), is it basically by putting a cpp file in the project folder instead of a c file?
--Vaza

[Moonchild]

I know this may seem a noobish question but...
When you create an eboot, how do you use a C++ instead of a C file(as shown in a tutorial im veiwing), is it basically by putting a cpp file in the project folder instead of a c file?
--Vaza

Yup, the pspsdk automatically finds out whether it should use psp-gcc or psp-g++. So just change the extension to .cpp and it should work just fine.

[Vaza]

Yup, the pspsdk automatically finds out whether it should use psp-gcc or psp-g++. So just change the extension to .cpp and it should work just fine.

Thanks, i'm just starting C++, im using a "Learn C++ in 21 Days" guide, im on day 3.

http://newdata.box.sk/bx/c/
If anyone wants to see the guide, thats it^^

[snowymydog]

Quick and dirty integer printing:

char temp[64];
int i = 1;
snprintf(temp, 63, "The value of i is %d", i);
oslPrintf_xy(1, 5, temp);

you can do this as simple as:

int i = 1;
oslPrintf_xy(1, 5, "%d", i);

however, i recommend:

int i=1;
oslDebug("i = %d", i);

[Access_Denied]

OK, I'm making my first, non-tutorial application. But I get an error when compiling it. I've already sorted through and eliminated most of the errors, but I still have this left. Anyone know how to fix it? What does 'undefined reference' mean?

$ make
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall  -L. -L/usr/local/
pspdev/psp/sdk/lib   mp3player.o main.o -lmad -lpspaudiolib -lpspaudio -lpsppowe
r -lpspdebug -lpspdisplay -lpspge -lpspctrl -lpspsdk -lc -lpspnet -lpspnet_inet
-lpspnet_apctl -lpspnet_resolver -lpsputility -lpspuser -lpspkernel -o mp3.elf
main.o: In function `main':
main.c:(.text+0xf0): undefined reference to `initGraphics'
main.c:(.text+0x13c): undefined reference to `loadImage'
main.c:(.text+0x164): undefined reference to `blitAlphaImageToScreen'
collect2: ld returned 1 exit status
make: *** [mp3.elf] Error 1

[Grimfate126]

OK, I'm making my first, non-tutorial application. But I get an error when compiling it. I've already sorted through and eliminated most of the errors, but I still have this left. Anyone know how to fix it? What does 'undefined reference' mean?

$ make
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall  -L. -L/usr/local/
pspdev/psp/sdk/lib   mp3player.o main.o -lmad -lpspaudiolib -lpspaudio -lpsppowe
r -lpspdebug -lpspdisplay -lpspge -lpspctrl -lpspsdk -lc -lpspnet -lpspnet_inet
-lpspnet_apctl -lpspnet_resolver -lpsputility -lpspuser -lpspkernel -o mp3.elf
main.o: In function `main':
main.c:(.text+0xf0): undefined reference to `initGraphics'
main.c:(.text+0x13c): undefined reference to `loadImage'
main.c:(.text+0x164): undefined reference to `blitAlphaImageToScreen'
collect2: ld returned 1 exit status
make: *** [mp3.elf] Error 1

let us see your code. im thinking that yu havent included a library.

[Access_Denied]

Nevermind, I found the problem. It was in the Makefile.
-= Double Post =-
OK, now I have 2 more problems.
1. I have pasted my background to the screen, but when I try to print something on the background, it just shows a black screen with text. No background shown.
2. How do I position the text? Like X and Y coordinates?

[Insert_Witty_Name]

Nevermind, I found the problem. It was in the Makefile.
-= Double Post =-
OK, now I have 2 more problems.
1. I have pasted my background to the screen, but when I try to print something on the background, it just shows a black screen with text. No background shown.
2. How do I position the text? Like X and Y coordinates?

If you're using the graphics.c & graphics.h then the function you require is printTextScreen.

Otherwise....

If you are using pspDebugScreenPrintf then you get that black 'box' surrounding your text, it's a debug screen after all - nothing more.

pspDebugScreenSetXY to position your text.

(I'd recommend using printTextScreen if you are indeed using graphics.c & graphics.h)

[Access_Denied]

Thanks. I found that out already, but I was too tired to post. BTW- AniMate is a GREAT game. You should have entered it into the PSPU contest. You could have won. Keep up the good work.
-= Double Post =-
OK, now I'm doing something a little different. I'm building a PRX. But I get this error:

$ make
psp-gcc -I/usr/local/pspdev/psp/sdk/include/libc -I. -I/usr/local/pspdev/psp/sdk
/include -O2 -G0 -Wall   -c -o main.o main.c
make: *** No rule to make target `exports.o', needed by `hello.elf'.  Stop.

[Moonchild]

You need an exports.exp file, I'd suggest you have a look at the sdk examples.

[Access_Denied]

EDIT: Nevermind, it's fixed.
-= Double Post =-
Sorry for asking for so much help, but now I'm getting this really long error. I've been trying to sort it for like 20 minutes, and I can't figure it out. Maybe someone else knows what's wrong.

[email protected] ~/projects/helloPRXsrc
$ make
psp-gcc -I/usr/local/pspdev/psp/sdk/include/libc -I. -I/usr/local/pspdev/psp/sdk
/include -O2 -G0 -Wall   -c -o main.o main.c
psp-gcc -I/usr/local/pspdev/psp/sdk/include/libc -I. -I/usr/local/pspdev/psp/sdk
/include -O2 -G0 -Wall  -L. -L/usr/local/pspdev/psp/sdk/lib -specs=/usr/local/ps
pdev/psp/sdk/lib/prxspecs -Wl,-q,-T/usr/local/pspdev/psp/sdk/lib/linkfile.prx
main.o graphics.o framebuffer.o exports.o -lpspgu -lpng -lz -lm -lpspdebug -lpsp
display -lpspge -lpspctrl -lpspsdk -lpsplibc -lpspnet -lpspnet_inet -lpspnet_apc
tl -lpspnet_resolver -lpsputility -lpspuser -lpspkernel -o hello.elf
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngerror.o): In
 function `png_warning':
pngerror.c:(.text+0x14c): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x14c): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
pngerror.c:(.text+0x1a8): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x1a8): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
pngerror.c:(.text+0x1ac): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x1ac): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngerror.o): In
 function `png_error':
pngerror.c:(.text+0x2a8): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x2a8): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
pngerror.c:(.text+0x310): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x310): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngerror.o):png
error.c:(.text+0x314): more undefined references to `_impure_ptr' follow
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngerror.o): In
 function `png_error':
pngerror.c:(.text+0x314): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngrutil.o): In
 function `png_handle_gAMA':
pngrutil.c:(.text+0xd08): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngrutil.o): In
 function `png_handle_cHRM':
pngrutil.c:(.text+0x1470): relocation truncated to fit: R_MIPS_GPREL16 against `
_impure_ptr'
pngrutil.c:(.text+0x14e0): relocation truncated to fit: R_MIPS_GPREL16 against `
_impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngrutil.o): In
 function `png_handle_sRGB':
pngrutil.c:(.text+0x1790): relocation truncated to fit: R_MIPS_GPREL16 against `
_impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngwrite.o): In
 function `png_convert_from_time_t':
pngwrite.c:(.text+0xac4): undefined reference to `gmtime'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngwutil.o): In
 function `png_write_cHRM':
pngwutil.c:(.text+0x1120): undefined reference to `_impure_ptr'
pngwutil.c:(.text+0x1120): additional relocation overflows omitted from the outp
ut
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngwutil.o): In
 function `png_write_cHRM_fixed':
pngwutil.c:(.text+0x16dc): undefined reference to `_impure_ptr'
collect2: ld returned 1 exit status
make: *** [hello.elf] Error 1

[Grimfate126]

EDIT: Nevermind, it's fixed.
-= Double Post =-
Sorry for asking for so much help, but now I'm getting this really long error. I've been trying to sort it for like 20 minutes, and I can't figure it out. Maybe someone else knows what's wrong.

[email protected] ~/projects/helloPRXsrc
$ make
psp-gcc -I/usr/local/pspdev/psp/sdk/include/libc -I. -I/usr/local/pspdev/psp/sdk
/include -O2 -G0 -Wall   -c -o main.o main.c
psp-gcc -I/usr/local/pspdev/psp/sdk/include/libc -I. -I/usr/local/pspdev/psp/sdk
/include -O2 -G0 -Wall  -L. -L/usr/local/pspdev/psp/sdk/lib -specs=/usr/local/ps
pdev/psp/sdk/lib/prxspecs -Wl,-q,-T/usr/local/pspdev/psp/sdk/lib/linkfile.prx
main.o graphics.o framebuffer.o exports.o -lpspgu -lpng -lz -lm -lpspdebug -lpsp
display -lpspge -lpspctrl -lpspsdk -lpsplibc -lpspnet -lpspnet_inet -lpspnet_apc
tl -lpspnet_resolver -lpsputility -lpspuser -lpspkernel -o hello.elf
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngerror.o): In
 function `png_warning':
pngerror.c:(.text+0x14c): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x14c): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
pngerror.c:(.text+0x1a8): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x1a8): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
pngerror.c:(.text+0x1ac): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x1ac): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngerror.o): In
 function `png_error':
pngerror.c:(.text+0x2a8): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x2a8): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
pngerror.c:(.text+0x310): undefined reference to `_impure_ptr'
pngerror.c:(.text+0x310): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngerror.o):png
error.c:(.text+0x314): more undefined references to `_impure_ptr' follow
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngerror.o): In
 function `png_error':
pngerror.c:(.text+0x314): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngrutil.o): In
 function `png_handle_gAMA':
pngrutil.c:(.text+0xd08): relocation truncated to fit: R_MIPS_GPREL16 against `_
impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngrutil.o): In
 function `png_handle_cHRM':
pngrutil.c:(.text+0x1470): relocation truncated to fit: R_MIPS_GPREL16 against `
_impure_ptr'
pngrutil.c:(.text+0x14e0): relocation truncated to fit: R_MIPS_GPREL16 against `
_impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngrutil.o): In
 function `png_handle_sRGB':
pngrutil.c:(.text+0x1790): relocation truncated to fit: R_MIPS_GPREL16 against `
_impure_ptr'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngwrite.o): In
 function `png_convert_from_time_t':
pngwrite.c:(.text+0xac4): undefined reference to `gmtime'
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngwutil.o): In
 function `png_write_cHRM':
pngwutil.c:(.text+0x1120): undefined reference to `_impure_ptr'
pngwutil.c:(.text+0x1120): additional relocation overflows omitted from the outp
ut
/usr/local/pspdev/lib/gcc/psp/4.0.2/../../../../psp/lib/libpng.a(pngwutil.o): In
 function `png_write_cHRM_fixed':
pngwutil.c:(.text+0x16dc): undefined reference to `_impure_ptr'
collect2: ld returned 1 exit status
make: *** [hello.elf] Error 1

i 90% sure hthe problem is in your makefile. check if you have everything correc in there.
-= Double Post =-
anybody know a good md2 loader with animation capabalities?

[Insert_Witty_Name]

If you have either of these:

USE_PSPSDK_LIBC = 1
USE_KERNEL_LIBS = 1

In your makefile, take them out.

[Grimfate126]

If you have either of these:

USE_PSPSDK_LIBC = 1
USE_KERNEL_LIBS = 1

In your makefile, take them out.

offtopic:

can u ckeck ur pm's?

[Access_Denied]

EDIT: Nevermind