Re: clang++ differences between High Sierra and Catalina ?

> On Apr 22, 2020, at 12:54, Carl Hoefs <[email protected]> wrote:
> 
> Hmm. I'll hazard a guess that your Xcode installation (plus command line tools) is a bit tussed and needs to be reinstalled. Using a mismatched Xcode + command line tools dmg can result in this kind of behavior.

Thank you. I'll do that.

In the meanwhile:

> ∙ Does /usr/local/opt/readline/lib exist?

Yes.

> Why is it referenced?

I wish I knew.

> ∙ Is there an instance of libstdc++.dylib in /usr/lib? (High Sierra)

I don't have High Sierra anymore

> ∙ Do you have a /usr/lib/libc++.dylib? (Catalina)

Yes.

>>> ld: warning: directory not found for option '-L/usr/local/opt/readline/lib:'
>>> ld: library not found for -lstdc++
>>> configure: error: installation or configuration problem: C++ compiler cannot create executables.
> 
> But a better place to post this Q would be [email protected]

Excellent. I'll reinstall Xcode and if that was not a solution I'll ask there.

Thank you very much for the hints.

Jean-Christophe 

> 
> -Carl
> 
> 
> 
>> On Apr 21, 2020, at 7:45 PM, Jean-Christophe Helary <[email protected]> wrote:
>> 
>> I used to be able to build IceCat 52.3 (the GNU version of Firefox) on High Sierra and I made a blog post about the instructions:
>> 
>> https://mac4translators.blogspot.com/2017/10/icecat-on-high-sierra.html
>> 
>> I was trying to build 60.7 last night and ended uo with weird error messages during the configuration process.
>> 
>> So I decided to try to build 52.3 again on Catalina and ended up with exactly the same errors:
>> 
>>> configure:2292: checking for c++
>>> configure:2324: checking whether the C++ compiler (/usr/bin/clang++ -std=gnu++14  -L/usr/local/opt/readline/lib:) works
>>> configure:2340: /usr/bin/clang++ -std=gnu++14 -o conftest  -I/usr/local/opt/readline/include: -L/usr/local/opt/readline/lib: conftest.C  1>&5
>>> clang: warning: include path for libstdc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
>>> clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of OS X 10.9 [-Wdeprecated]
>>> ld: warning: directory not found for option '-L/usr/local/opt/readline/lib:'
>>> ld: library not found for -lstdc++
>>> clang: error: linker command failed with exit code 1 (use -v to see invocation)
>>> configure: failed program was:
>>> 
>>> #line 2335 "configure"
>>> #include "confdefs.h"
>>> 
>>> int main(){return(0);}
>>> configure: error: installation or configuration problem: C++ compiler cannot create executables.
>> 
>> 
>> Is there a reason why clang would work in High Sierra but not in Catalina ?
>> 
>> Am I missing anything ?
>> 
>> Jean-Christophe Helary
>> -----------------------------------------------
>> http://mac4translators.blogspot.com @brandelune
>> 
>> 
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> 

Jean-Christophe Helary
-----------------------------------------------
http://mac4translators.blogspot.com @brandelune


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