[Octave-bug-tracker] [bug #59968] ld: symbol(s) not found for architecture x86_64

[david laxer]

Follow-up Comment #18, bug #59968 (project octave):

I am building from the repository the development branch.
0. I had to change -std=c++11 to -stdc++17 to solve the issues with <cmath>.
etc.
1. I switched to clang and clang++
2. I switched -isysroot
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk"

$ xcrun -show-sdk-path
/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk

3. this causes iconv.h to be found in :
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
4. the library : libiconv.2.dylib in
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/lib
is a .tbd.  Its my understanding this is associated with the system dynamic
library /usr/lib/libiconv.2.dylib.
5. -liconv doesn't resolve the linking error, but
-Wl,-force_load,/usr/lib/libiconv.2.dylib, does (not sure what's going on
here.

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