Sas/C vs. GCC regarding graphics.library

[Steffest]

Hi!

I'm doing some babysteps in C for the Amiga.
I created a simple test program with some BltBitMap actions.

When I compile it with Sas/C - it runs fine on a stock A500 - that's graphics.library 34, right?

When I compile the same source with GCC (gcc -noixemul blit.c -o blitgcc) it doesn't run on the A500 - displaying a message "Need version 37 of graphics.library"

The source and both binaries are at https://github.com/steffest/amiga-c/tree/master/blit

What is causing this GCC dependency and how do I avoid it ?

Thanks!

[Samurai_Crow]

If you don't open Graphics.library yourself, you don't get to pick the minimum version number. It picks Kickstart 2.04 as a default minimum for you. If you open Graphics.library when you open Intuition.library, then you can specify the ancient Kickstart version you want.

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[Steffest]

Thanks!

Didn't know that.
Yay, another step! :-)

[Samurai_Crow]

You're welcome! Also, I would stick to version number 36 (Kickstart 1.3) or newer since Kickstart 1.1 was limited and only was used on the earliest A1000 model machines.

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[phx]

IIRC V36 is 2.0 and V34 is 1.3.

[alkis]

Actually, the standard C library (libnix) defaults to 2.04 as a requirement.
What version of gcc are you using? (gcc --version)

You could give -lnix13 a shot in linker flags, but what works 100% is to not use the standard library (use -nostdlib)

Have a look here http://eab.abime.net/showpost.php?p=910011&postcount=4

[Samurai_Crow]

Originally Posted by phx

IIRC V36 is 2.0 and V34 is 1.3.

Oh ok. You're probably right.

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[Steffest]

Originally Posted by alkis

What version of gcc are you using? (gcc --version)

I'm using gcc 2.95.3 from the ADE package ( http://aminet.net/package/dev/gcc/ADE )

You could give -lnix13 a shot in linker flags, but what works 100% is to not use the standard library (use -nostdlib)

Have a look here http://eab.abime.net/showpost.php?p=910011&postcount=4

Thanks, my understanding of gcc is a lot better now.
After lot's of fiddling I got it to compile with the -nostdlib flag but it doesn't seem to be worth the effort.

I guess I'll stick with Sas/C for now for kickstart1.3 compatibility.