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**ピッカホ** · 04-30-2006, 11:40 PM

I just installed SDL (no problem) but when I compile something I get

/usr/local/pspdev/lib/gcc/psp/4.0.2../../../psp/lib/crt0.o in function '_main'

/home/p.../pspsdk/src/startup/cr-.c:86: undefined reference to "main"

my makefile looks like this:
TARGET = hello
OBJS = Main.o

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

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = SDL GL

PSPSDK=$(shell psp-config --pspsdk-path)
PSPBIN = $(PSPSDK)/../bin
CFLAGS += `$(PSPBIN)/sdl-config --cflags` -DHAVE_OPENGL
LIBS += -lglut -lGLU -lGL `$(PSPBIN)/sdl-config --libs` -lm -lc -lpspdebug -lpspge -lpspdisplay -lpspctrl -lpspsdk -lpspvfpu -lpspuser -lpspkernel -lstdc++
include $(PSPSDK)/lib/build.mak

thanks in advance!!

codemonkey · 05-01-2006, 05:42 AM

I'm also fairly new to SDL. Actually I dropped it because I couldn't get the frames per second up to something decent, but I did get it to compile.

SDL defines it's own main() function. This function defines all the PSP specific callback and does some other init stuff and then calls a function called SDL_main(). SDL_main is the function that you should write as the "starting point" of your code. You should declare it something like

Code:

extern "C" int SDL_main( int argc, char *argv[] );

to keep the compiler from obfuscating your function names (so that SDL can find them).

**BlackPhoenix** · 05-01-2006, 09:48 AM

Here is how I did it

Code:

#ifndef PSP
int main(int argc, char *argv[])
#else
extern "C" int SDL_main(int argc, char *argv[])
#endif
{
//# etc etc..
}

**ピッカホ** · 05-01-2006, 06:27 PM

hmm the compiler is still giving me errors with the same error message.

**Slasher** · 05-01-2006, 06:52 PM

try main.o, instead of Main.o ... might be case sensitive?

**ピッカホ** · 05-01-2006, 07:31 PM

it gives me an sytax errir before sting constant. if I copy and paste extern "C" int SDL_main( int argc, char *argv[] ); (it doesn't like "C" in that line.) =c/

**ピッカホ** · 05-03-2006, 06:48 PM

*BUMP* does anybody have an idea on why its not compiling?

**Slasher** · 05-03-2006, 07:14 PM

your using 'int SDL_main(int argc, char *argv[]) { }' as your main thread right? your not just using int main() { }

**ピッカホ** · 05-03-2006, 10:23 PM

I can't use either because it will both give me the same thing =c/

04-30-2006, 11:40 PM	#1
ピッカホ Join Date: Jan 2006 Location: In a Dark land Posts: 176 Trader Feedback: 0	SDL error! I just installed SDL (no problem) but when I compile something I get /usr/local/pspdev/lib/gcc/psp/4.0.2../../../psp/lib/crt0.o in function '_main' /home/p.../pspsdk/src/startup/cr-.c:86: undefined reference to "main" my makefile looks like this: TARGET = hello OBJS = Main.o CFLAGS = -O2 -G0 -Wall CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti ASFLAGS = $(CFLAGS) EXTRA_TARGETS = EBOOT.PBP PSP_EBOOT_TITLE = SDL GL PSPSDK=$(shell psp-config --pspsdk-path) PSPBIN = $(PSPSDK)/../bin CFLAGS += `$(PSPBIN)/sdl-config --cflags` -DHAVE_OPENGL LIBS += -lglut -lGLU -lGL `$(PSPBIN)/sdl-config --libs` -lm -lc -lpspdebug -lpspge -lpspdisplay -lpspctrl -lpspsdk -lpspvfpu -lpspuser -lpspkernel -lstdc++ include $(PSPSDK)/lib/build.mak thanks in advance!!

05-01-2006, 05:42 AM	#2
codemonkey Join Date: Feb 2006 Posts: 12 Trader Feedback: 0	I'm also fairly new to SDL. Actually I dropped it because I couldn't get the frames per second up to something decent, but I did get it to compile. SDL defines it's own main() function. This function defines all the PSP specific callback and does some other init stuff and then calls a function called SDL_main(). SDL_main is the function that you should write as the "starting point" of your code. You should declare it something like Code: extern "C" int SDL_main( int argc, char *argv[] ); to keep the compiler from obfuscating your function names (so that SDL can find them).

05-01-2006, 09:48 AM	#3
BlackPhoenix Developer Join Date: Dec 2005 Location: UK Posts: 149 Trader Feedback: 0	Here is how I did it Code: #ifndef PSP int main(int argc, char argv[]) #else extern "C" int SDL_main(int argc, char argv[]) #endif { //# etc etc.. }

05-01-2006, 06:27 PM	#4
ピッカホ Join Date: Jan 2006 Location: In a Dark land Posts: 176 Trader Feedback: 0	hmm the compiler is still giving me errors with the same error message.

05-01-2006, 06:52 PM	#5
Slasher OMFG Join Date: Jul 2005 Location: Toronto Posts: 2,816 Trader Feedback: 0	try main.o, instead of Main.o ... might be case sensitive?

05-01-2006, 07:31 PM	#6
ピッカホ Join Date: Jan 2006 Location: In a Dark land Posts: 176 Trader Feedback: 0	it gives me an sytax errir before sting constant. if I copy and paste extern "C" int SDL_main( int argc, char *argv[] ); (it doesn't like "C" in that line.) =c/

05-03-2006, 06:48 PM	#7
ピッカホ Join Date: Jan 2006 Location: In a Dark land Posts: 176 Trader Feedback: 0	BUMP does anybody have an idea on why its not compiling?

05-03-2006, 07:14 PM	#8
Slasher OMFG Join Date: Jul 2005 Location: Toronto Posts: 2,816 Trader Feedback: 0	your using 'int SDL_main(int argc, char *argv[]) { }' as your main thread right? your not just using int main() { }

05-03-2006, 10:23 PM	#9
ピッカホ Join Date: Jan 2006 Location: In a Dark land Posts: 176 Trader Feedback: 0	I can't use either because it will both give me the same thing =c/

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SDL error!