Re: [MACTCL] trouble building tcl/tk from source (macOS 10.15.6, Xcode 12.4) --> strtoul() issue???

[Kevan H. <ha...@br...>]

Marc, thanks for your suggestion:

> With current tips of core-8-branch and main I do not see these errors when
> I build Tcl 8.7 and Tk 8.7 using my usual build process:
> 
> make -C tcl/macosx
> make -C tk/macosx

I tried that last night and it failed on the Tk link in the same way, with this previously-reported error:

>>> Undefined symbols for architecture x86_64:
>>>     "_TclIsSpaceProc", referenced from:
>>>         _strtoul in libtclstub8.7.a(strtoul.o)
>>> ld: symbol(s) not found for architecture x86_64
>>> clang: error: linker command failed with exit code 1 (use -v to see
>> invocation)

Mansour, thank you for this cool use of xcrun:

> Try setting these environment variables instead:
> 
>      export CFLAGS="-arch x86_64"
>      export MACOSX_DEPLOYMENT_TARGET="10.8"
>      export SDKROOT="$(xcrun --sdk macosx10.8 --show-sdk-path)"
> 
> MACOSX_DEPLOYMENT_TARGET and SDKROOT are equivalent to
> -mmacosx-version-min and -isysroot, respectively, but are used by both
> the compiler and linker.

I tried this and I get a Tk compile error

/Users/kevan/Desktop/Scratch/TclTk/TclTk8.7a3/tk/unix/../macosx/ttkMacOSXTheme.c:408:12: error: implicit declaration of
       function 'CGPathCreateWithRoundedRect' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
     path = CGPathCreateWithRoundedRect(bounds, radius, radius, NULL);

Which lookis like a C dialect error. I have gcc version:

KSH5:TclTk8.7a3 kevan$ gcc --version
Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX10.8.sdk/usr/include/c++/4.2.1
Apple clang version 12.0.0 (clang-1200.0.32.2)
Target: x86_64-apple-darwin19.6.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

What version of MacOS are you both using? Perhaps mine needs to be updated.

Best, Kevan

-- 
Kevan Hashemi, Electrical Engineer
Physics Department, Brandeis University
http://www.bndhep.net