the error is not in sagenb, in fact.
Try starting Sage as
./sage
and send us the error message (and the file the error message asks you to send)
We need to do something about this "non"-error, it keeps confusing people.
On Sat, Nov 2, 2019 at 5:24 AM Rob Gross <robert.gross.1...@gmail.com> wrote:
>
> Hi,
>
> I managed to find advice about compiling gcc and gfortran on Catalina
> (summary in a moment), and now I ran into another problem compiling sage from
> source (not upgrading). The attached log file shows the error message when I
> typed "make -j4" and watched the compilation nearly succeed. Any ideas about
> how to resolve this error?
>
> As for compiling gfortran on Catalina: the recommendation (which worked for
> me) is to create a new directory which mostly contains soft links to the
> standard system files:
>
> lrwxr-xr-x 1 root wheel 60 Oct 31 20:28 Library@ ->
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/Library/
> lrwxr-xr-x 1 root wheel 59 Oct 31 20:28 System@ ->
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/
> drwxr-xr-x 7 root wheel 224 Oct 31 20:29 usr/
>
> and usr looks like:
>
> lrwxr-xr-x 1 root wheel 60 Oct 31 20:28 bin@ ->
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/bin/
> drwxr-xr-x 270 root wheel 8640 Oct 31 20:31 include/
> lrwxr-xr-x 1 root wheel 59 Oct 31 20:29 lib@ ->
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib
> lrwxr-xr-x 1 root wheel 64 Oct 31 20:29 libexec@ ->
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/libexec/
> lrwxr-xr-x 1 root wheel 62 Oct 31 20:29 share@ ->
> /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/share/
>
> Then I had to copy all of /Library.../include into my {new
> directory}/usr/include, and patch Availability.h following line 300:
>
> ...
> #ifndef __OSX_AVAILABLE_STARTING
> #define __OSX_AVAILABLE_STARTING(_osx, _ios)
> #define __OSX_AVAILABLE_BUT_DEPRECATED(_osxIntro, _osxDep, _iosIntro, _iosDep)
> #define __OSX_AVAILABLE_BUT_DEPRECATED_MSG(_osxIntro, _osxDep, _iosIntro,
> _iosDep, _msg)
> #endif
>
> #if defined(__has_feature)
> ...
>
> Then "./configure gcc/gfortran --with-sysroot=new_dummy_directory" worked,
> at least for me.
>
> Thanks, as always.--Rob
>
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