Error installing nel

[KaiwenMa]

Hi, I got the error while install nel on Mac. May I know what went wrong and if there is a way to solve it? Thanks

building 'nel.simulator_c' extension
/usr/bin/clang -fno-strict-aliasing -fno-common -dynamic -arch i386 -arch x86_64 -g -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DMAJOR_VERSION=1 -DMINOR_VERSION=0 -I../.. -I../../deps -I/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/include -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c nel/simulator.cpp -o build/temp.macosx-10.6-intel-2.7/nel/simulator.o -std=c++11 -Wall -Wpedantic -Ofast -DNDEBUG -fno-stack-protector -mtune=native -march=native
warning: include path for stdlibc++ headers not found; pass '-std=libc++' on the
command line to use the libc++ standard library instead
[-Wstdlibcxx-not-found]
In file included from nel/simulator.cpp:1:
In file included from /Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/Python.h:85:
/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/unicodeobject.h:534:5: warning:
'register' storage class specifier is deprecated and incompatible with
C++17 [-Wdeprecated-register]
register PyObject obj, / Object */
^~~~~~~~~
/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/unicodeobject.h:553:5: warning:
'register' storage class specifier is deprecated and incompatible with
C++17 [-Wdeprecated-register]
register PyObject obj / Object */
^~~~~~~~~
/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/unicodeobject.h:575:5: warning:
'register' storage class specifier is deprecated and incompatible with
C++17 [-Wdeprecated-register]
register const wchar_t w, / wchar_t buffer */
^~~~~~~~~
/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/unicodeobject.h:593:5: warning:
'register' storage class specifier is deprecated and incompatible with
C++17 [-Wdeprecated-register]
register wchar_t w, / wchar_t buffer */
^~~~~~~~~
In file included from nel/simulator.cpp:1:
In file included from /Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/Python.h:94:
/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/stringobject.h:173:5: warning:
'register' storage class specifier is deprecated and incompatible with
C++17 [-Wdeprecated-register]
register PyObject obj, / string or Unicode object */
^~~~~~~~~
/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/stringobject.h:174:5: warning:
'register' storage class specifier is deprecated and incompatible with
C++17 [-Wdeprecated-register]
register char *s, / pointer to buffer variable */
^~~~~~~~~
/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/stringobject.h:175:5: warning:
'register' storage class specifier is deprecated and incompatible with
C++17 [-Wdeprecated-register]
register Py_ssize_t len / pointer to length variable or NULL
^~~~~~~~~
nel/simulator.cpp:6:10: fatal error: 'thread' file not found
#include
^~~~~~~~
8 warnings and 1 error generated.
error: command '/usr/bin/clang' failed with exit status 1

[siddancha]

Are you using the '-stdlib=libc++' flag in api/python/setup.py?

https://stackoverflow.com/questions/11972603/cmake-clang-and-cv11-on-os-x-10-8

[KaiwenMa]

Nope, I use '-std=c++11' flag only.

If I include '-stdlib=libc++' flag, it gives the error
clang: error: invalid deployment target for -stdlib=libc++ (requires OS X 10.7 or later)

FYI, my system is macOS Mojave OS10.14, and the most recent xcode-select

[siddancha]

Can you try this?

https://stackoverflow.com/questions/52509602/cant-compile-c-program-on-a-mac-after-upgrade-to-mojave/52530212#52530212

[KaiwenMa]

Hi, I tried to install the entire xcode 10.0 and make sure the path for xcode-select is correct. However, it seems that by '-std=c++11' flag only, it still could not find the correct path for files like 'thread' and gives the same error as above