There is a file called Foundation.h, and it has the proper contents, it's just not being found by gcc.
It's at /usr/GNUstep/System/Headers/Foundation/Foundation.h

I browsed GCC's docs, and set the environment variable OBJC_INCLUDE_PATH to /usr/GNUstep/System/Headers/
Now it shows this:

Quote:main.m:1:2: warning: #import is obsolete, use an #ifndef wrapper in the header file
In file included from /usr/GNUstep/System/Headers/Foundation/Foundation.h:29,
from main.m:1:
/usr/GNUstep/System/Headers/Foundation/NSObjCRuntime.h:112:32: base/objc-gnu2next.h: No such file or directory
In file included from main.m:1:
/usr/GNUstep/System/Headers/Foundation/Foundation.h:30:22: GSConfig.h: No such file or directory
In file included from /usr/GNUstep/System/Headers/Foundation/NSDebug.h:30,
from /usr/GNUstep/System/Headers/Foundation/Foundation.h:31,
from main.m:1:
/usr/GNUstep/System/Headers/Foundation/NSObject.h:39:26: base/preface.h: No such file or directory
/usr/GNUstep/System/Headers/Foundation/NSObject.h:40:22: GSConfig.h: No such file or directory
In file included from /usr/GNUstep/System/Headers/Foundation/Foundation.h:39,
from main.m:1:
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:27:22: GSConfig.h: No such file or directory
In file included from /usr/GNUstep/System/Headers/Foundation/Foundation.h:39,
from main.m:1:
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:32: parse error before "NSSwappedFloat"
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:33: parse error before "NSSwappedDouble"
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:53: parse error before "GSSwapI16"
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:53: parse error before "in"
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:55: parse error before "GSSwapI32"
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:55: parse error before "in"
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:57: parse error before "GSSwapI64"
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:57: parse error before "in"
/usr/GNUstep/System/Headers/Foundation/NSByteOrder.h:59: parse error before "GSSwapI128"

... lots of similar errors omitted from NSByteOrder.h ...

In file included from /usr/GNUstep/System/Headers/Foundation/NSDecimalNumber.h:31,
from /usr/GNUstep/System/Headers/Foundation/Foundation.h:49,
from main.m:1:
/usr/GNUstep/System/Headers/Foundation/NSDecimal.h:30:22: GSConfig.h: No such file or directory
main.m:141:2: warning: no newline at end of file

Thanks,
Steven

Find that base directory and add its parent to the header search paths.

Ok, thanks. After adding that and a few other directories to the search path, it compiles. But, the linker barfs up:

Quote:/tmp/ccL6nm6c.o: In function `main':
/tmp/ccL6nm6c.o(.text+0x28): undefined reference to `objc_get_class'
/tmp/ccL6nm6c.o(.text+0x28): relocation truncated to fit: R_PPC_REL24 objc_get_class
/tmp/ccL6nm6c.o(.text+0x3c): undefined reference to `objc_msg_lookup'
/tmp/ccL6nm6c.o(.text+0x3c): relocation truncated to fit: R_PPC_REL24 objc_msg_lookup
/tmp/ccL6nm6c.o(.text+0x64): undefined reference to `objc_msg_lookup'
/tmp/ccL6nm6c.o(.text+0x64): relocation truncated to fit: R_PPC_REL24 objc_msg_lookup

for thousands of lines. I think I need to tell the linker where the compiled Foundation code is, but I don't know how.
Steven

probably -lobjc -lfoundation -lappkit or something... what are the libraries called and where are they installed?

Now it says this:

Quote:/usr/bin/ld: cannot find -lFoundation

And I honestly don't know what to look for- what will it be named? I've been using locate to find stuff, but I need a file name.
Steven

It'll be called something like libFoundation.so or libfoundation.so. At a wild guess, /usr/X11R6/lib/, /usr/GNUstep/Libraries/, /usr/X11R6/lib/GNUstep/ seem like reasonable places to try.

I tried doing
locate *foundation*.so
locate *Foundation*.so
locate *.so

and there was nothing like libfoundation.so.
However, I did find /usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so
I don't know if that's right though, or how to pass it to the linker. And, I don't have X11 installed, so those other paths don't exist.
Steven

I'm off to bed now, so I'll try anything that you say tomorrow morning... thanks OSC.
Steven

Try adding this to your link arguments:

[font=monaco,courier]-L/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu -lgnustep-base[/font]

I added the above path to LIBRARY_PATH and now use this command to compile:

and it spits out ten thousand lines like this, including the stuff mentioned before:

Quote:/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `objc_lookup_class'
/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `objc_get_type_qualifiers'
/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `sel_types_match'
/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `search_for_method_in_list'
/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `dlerror'

Thanks,
Steven

Please tell me that you have read this: Installation instructions

Granted it is complicated. There appear to be some support libraries needed. The instructions suggest that you need to compile the gnustep libraries. Did you do that, or do they have binaries? (I cannot find any binary downloads...)

There are other links to docs, but they don't work.

I did follow those instructions, except I didn't install the gui package as I don't have an X server installed on the computer. I compiled my own.
Steven

Have you tried -lobjc and/or -ldl ?

Have you tried 'sudo apt-get install gnustep'?

I didn't think of using apt-get, I just reinstalled GNUstep from the package.

Quote:gcc -lobjc -lgnustep-base -ldl Card.m CardStack.m main.m -o war

returns:

Quote:/tmp/cc2IsoPM.o: In function `_i_Card__compare_':
/tmp/cc2IsoPM.o(.text+0x84): undefined reference to `objc_msg_lookup'
/tmp/cc2IsoPM.o(.text+0x84): relocation truncated to fit: R_PPC_REL24 objc_msg_lookup
/tmp/cc2IsoPM.o(.text+0xb0): undefined reference to `objc_msg_lookup'
/tmp/cc2IsoPM.o(.text+0xb0): relocation truncated to fit: R_PPC_REL24 objc_msg_lookup
...
/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `objc_lookup_class'
/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `objc_get_type_qualifiers'
/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `sel_types_match'
/usr/GNUstep/System/Libraries/powerpc/linux-gnu/gnu-gnu-gnu/libgnustep-base.so: undefined reference to `search_for_method_in_list'

Could there be another library which defines all of these? What would it be called?
Thanks,
Steven