Compiling problems

SDL Development
1

“Andreas Umbach” wrote:

Sven Garbade <@Sven_Garbade> schrieb am 27 Jun 2000:

Many Thanks for your replies!

But there?s still a problem:

make
gcc -o grw_test sdl-config --cflags sdl-config --libs
/usr/lib/crt1.o: In function _start': /usr/lib/crt1.o(.text+0x18): undefined reference to main’
collect2: ld returned 1 exit status
make: *** [grw_test] Error 1

What happened here? Did the $(OBJECTS) get lost?
You need the .o file too, like:

gcc -o test gwr_main.o sdl-config --cflags sdl-config --libs

Check out my 3D lightcycle game: http://www.gltron.org
More than 60’000 Downloads of the latest version (0.59)

Off course…

Thanks, Sven

2

Many Thanks for your replies!

But there?s still a problem:

make
gcc -o grw_test sdl-config --cflags sdl-config --libs
/usr/lib/crt1.o: In function _start': /usr/lib/crt1.o(.text+0x18): undefined reference to main’
collect2: ld returned 1 exit status
make: *** [grw_test] Error 1

I don?t understand this, because the command

gcc -o test grw_main.o $(bash sdl-config --libs) $(bash sdl-config
–cflags)

compiles correct.

  • Sven

Luc MAZARDO wrote:>

Sven Garbade <@Sven_Garbade> writes:

[…]
What is wrong with the Makefile?

TARGET = grw_test

OBJECTS = grw_main.o

from the SDL-FAQ

SDL_LDFLAGS := $(bash sdl-config --libs)
SDL_CFLAGS := $(bash sdl-config --cflags)

$(TARGET): $(OBJECTS); gcc -o $(TARGET) $(OBJECTS) $(SDL_LDFLAGS)
$(SDL_CFLAGS)

grw_main.o: grw_main.c; gcc -c grw_main.c

with sdl-config --libs and sdl-config --cflags, it’s seems to
works !

–
Luc Mazardo
http://OCamlSdl.sourceforge.net
Gnu Emacs:flame.el Don’t you realise that it’s a wonderful day?

3

Sven Garbade schrieb am 27 Jun 2000:

Many Thanks for your replies!

But there?s still a problem:

make
gcc -o grw_test sdl-config --cflags sdl-config --libs
/usr/lib/crt1.o: In function _start': /usr/lib/crt1.o(.text+0x18): undefined reference to main’
collect2: ld returned 1 exit status
make: *** [grw_test] Error 1

What happened here? Did the $(OBJECTS) get lost?
You need the .o file too, like:

gcc -o test gwr_main.o sdl-config --cflags sdl-config --libs–
Check out my 3D lightcycle game: http://www.gltron.org
More than 60’000 Downloads of the latest version (0.59)