make lib fails on macOS

[oneilm]

With the following in make.inc:

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CC=gcc-9 CXX=g++-9 FC=gfortran-9 CFLAGS += -I src

OpenMP with gcc on OSX needs the following

OMPFLAGS = -fopenmp OMPLIBS = -lgomp

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Running "make lib" fails with many errors, the first of which is:

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Undefined symbols for architecture x86_64: "std::ctype::_M_widen_init() const", referenced from: sctl::SphericalHarmonics::WriteVTK(char const, sctl::Vector const, sctl::Vector const*, sctl::SHCArrange, long long, long long, double, sctl::Comm const&) in libkernels.o ...

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[lu1and10]

Hi Mike,

Thanks for pointing this out. We now use Dhairya's SCTL C++ library which need to link with stdc++ lib for dynamic lib, in makefile, if you change "LIBS = -lm" to "LIBS = -lm -lstdc++" in makefile, it may work.

Best, Libin

[oneilm]

Yes that worked.

• - Mike O’Neil www.cims.nyu.edu/~oneil oneil@cims.nyu.edu 212-998-3125

On Oct 3, 2019, at 7:51 AM, Libin Lu notifications@github.com wrote:

Hi Mike,

Thanks for pointing this out. We now use Dhairya's SCTL C++ library which need to link with stdc++ lib for dynamic lib, in makefile, if you change "LIBS = -lm" to "LIBS = -lm -lstdc++" in makefile, it may work.

Best, Libin

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[lu1and10]

Yes that worked. - - Mike O’Neil www.cims.nyu.edu/~oneil oneil@cims.nyu.edu 212-998-3125 …

Glad it works. Sorry about that, we will fix this in the next commit.

[lu1and10]

added -lstdc++ flag in makefile.