Unable to compile on macOS 13.6 - after install of command line tools 15

[cstricker]

Context

Last week - as every year..., Apple released Xcode 15 with the command line tools (CLT). Consequently, the new CLT was installed automatically on my machine. At this moment, the build using the new CLT is broken.

Overview of the issue

The relevant building output is

[ 42%] Built target sparse13
27 warnings generated.
/Users/stricker/.local/src/neuron/nrn/external/iv/src/lib/Dispatch/dispatcher.cpp:63:16: error: declaration of 'select' has a different language linkage
extern int select(int, fd_set*, fd_set*, fd_set*, struct timeval*);
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/include/sys/_select.h:43:10: note: previous declaration is here
int select(int, fd_set * __restrict, fd_set * __restrict,
^
/Users/stricker/.local/src/neuron/nrn/external/iv/src/lib/Dispatch/dispatcher.cpp:733:12: error: call to 'select' is ambiguous
nfound = select(_nfds, &rmaskret, &wmaskret, &emaskret, howlong);
^~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/include/sys/_select.h:43:10: note: candidate function
int select(int, fd_set * __restrict, fd_set * __restrict,
^
/Users/stricker/.local/src/neuron/nrn/external/iv/src/lib/Dispatch/dispatcher.cpp:63:16: note: candidate function
extern int select(int, fd_set*, fd_set*, fd_set*, struct timeval*);
^
/Users/stricker/.local/src/neuron/nrn/external/iv/src/lib/Dispatch/dispatcher.cpp:842:10: error: call to 'select' is ambiguous
if (select(fd+1, &rmask, nil, nil, &poll) < 0) {
^~~~~~
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/include/sys/_select.h:43:10: note: candidate function
int select(int, fd_set * __restrict, fd_set * __restrict,
^
/Users/stricker/.local/src/neuron/nrn/external/iv/src/lib/Dispatch/dispatcher.cpp:63:16: note: candidate function
extern int select(int, fd_set*, fd_set*, fd_set*, struct timeval*);
^
3 errors generated.

Expected result/behavior

No error should be generated

NEURON setup

• Version: 9.0.0
• Installation method cmake build
• OS + Version: 13.6
• Compiler + Version: clang now 15.0.40.1

Build configuration:

-- Configured NEURON 9.0.0

-- You can now build NEURON using:
-- cmake --build . --parallel 8 [--target TARGET]
-- You might want to adjust the number of parallel build jobs for your system.
-- Some non-default targets you might want to build:
-- --------------+--------------------------------------------------------------
-- Target | Description
-- --------------+--------------------------------------------------------------
-- install | Will install NEURON to: /Applications/NEURON
-- | Change the install location of NEURON using:
-- | cmake <src_path> -DCMAKE_INSTALL_PREFIX=<install_path>
-- docs | Build full docs. Calls targets: doxygen, notebooks, sphinx, notebooks-clean
-- uninstall | Removes files installed by make install (todo)
-- --------------+--------------------------------------------------------------
-- Build option | Status
-- --------------+--------------------------------------------------------------
-- C COMPILER | /usr/bin/clang
-- CXX COMPILER | /usr/bin/clang++
-- BUILD_TYPE | RelWithDebInfo (allowed: Custom;Debug;Release;RelWithDebInfo;Fast)
-- COMPILE FLAGS | -g -O2
-- Shared | ON
-- Default units | modern units (2019 nist constants)
-- MPI | ON
-- DYNAMIC | OFF
-- INC | /usr/local/Cellar/open-mpi/4.1.5/include
-- LIB | /usr/local/Cellar/open-mpi/4.1.5/lib/libmpi.dylib
-- Python | ON
-- DYNAMIC | OFF
-- MODULE | ON
-- python3.11 (default)
-- EXE | /usr/local/bin/python3
-- INC | /usr/local/opt/python/Frameworks/Python.framework/Versions/3.11/include/python3.11
-- LIB | /usr/local/opt/python/Frameworks/Python.framework/Versions/3.11/lib/libpython3.11.dylib
-- Readline | /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/lib/libreadline.tbd
-- Curses | /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/lib/libcurses.tbd;/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/lib/libform.tbd
-- RX3D | ON
-- OptLevel | 0
-- Interviews | ON
-- PATH | /Users/stricker/.local/src/neuron/nrn/external/iv
-- INC | /Users/stricker/.local/src/neuron/nrn/external/iv/src/include
-- X11 (INC) | /usr/local/include;/usr/X11R6/include
-- (LIBDIR)| /usr/local/lib
-- CoreNEURON | OFF
-- Tests | ON
-- --------------+--------------------------------------------------------------
-- See documentation : https://www.neuron.yale.edu/neuron/
-- --------------+--------------------------------------------------------------

-- Configuring done (69.2s)
-- Generating done (1.0s)

Minimal working example - MWE

not relevant

Logs

Output as above

[nrnhines]

I've updated to Ventura 13.6 and Xcode 15. Will return when I know more.

[nrnhines]

Hopefully the issue is isolated to InterViews as the build succeeds when -DNRN_ENABLE_INTERVIEWS=OFF

[nrnhines]

The fix is in https://github.com/neuronsimulator/iv/tree/hines/sys-select-h
It may be a day or so before the pull request acceptance process gets all the way to the nrn master but til then in your current failing version of nrn

cd external/iv
git checkout hines/sys-select-h
cd ../..
cd build
make -j install