Z88dk: nightly build: win32 compile of zcc.exe is broken

[aralbrec]

There is a bug in the cross-compiled win32 zcc.exe that is not present in the vs2015 binaries.
See the forums.

To reproduce, compile the sp1 demo in z88dk/libsrc/_DEVELOPMENT/EXAMPLES/zx/demo_sp1/demo1 with:
zcc +zx -v -clib=new -startup=31 @sp1demo.lst -o demo -create-app
In the messages generated by zcc you'll see this when processing the crt:
~
m4 -I "c:/z88dk/lib/config....\libsrc_DEVELOPMENT\target\zx" -I "c:/z88dk/li
b/config....\/src/m4" --define=__STARTUP=18359902858641439 ....
~
The startup value should be 31 and not "18359902858641439". In the vs2015 binary it is 31.

The relevant bit of code is line 1011 in zcc.c. 31 is scanned first with sscanf and then printed to generate the m4 command with snprintf.

It may also be worthwhile to check if the macosx binaries and a local linux install behave properly too.

[aralbrec]

It still fails after this change. There is something wrong with the cross compiler's implementation of %li in scanf. I don't know if things can be updated?

[suborb]

This looks like a 32/64 bit problem.

18359902858641439 = 0x413A3C0000001F

So the scanf is resolving 32 bits correctly which is what you'd expect for %ld on 32 bit machines. However the printf seems to be trying to print a 64 bit long rather than a 32 bit which is wrong.

Switching to ints here should work regardless.

[aralbrec]

I've committed a standardized way to scan exactly 32-bit quantities. Let's see if that works.

[suborb]

I quickly built it, it's here: http://nightly.z88dk.org/misc/zcc.exe

On Wed, 3 May 2017, at 03:55 PM, aralbrec wrote:

I've committed a standardized way to scan exactly 32-bit
quantities[1]. Let's see if that works.> — You are receiving this because you commented. Reply to this email
directly, view it on GitHub[2], or mute the thread[3].>

Links:

1. https://github.com/z88dk/z88dk/blob/master/src/zcc/zcc.c#L1013
2. https://github.com/z88dk/z88dk/issues/226#issuecomment-298935869
3. https://github.com/notifications/unsubscribe-auth/AAYF4dt6AveCaDA8vGPdXU2sw6hL1X7Sks5r2JVugaJpZM4NO1W2

[aralbrec]

Thanks - it works so I will close.