Problem building AMReX as a shared library with CMake on MacOS #425
Description
When trying to build AMReX as a shared library on MacOS, I am getting a compilation error ; the same error was also reported by @MaxThevenet in off-line discussion.
More precisely, when running:
mkdir builddir
cd builddir
cmake -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ -DBUILD_SHARED_LIBS=ON ..
make install
I get
[100%] Linking CXX shared library libamrex.dylib
Undefined symbols for architecture x86_64:
"getLevelBld()", referenced from:
amrex::Amr::InitAmr() in AMReX_Amr.cpp.o
"_amrex_probinit", referenced from:
amrex::Amr::readProbinFile(int&) in AMReX_Amr.cpp.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
make[2]: *** [Src/libamrex.dylib] Error 1
make[1]: *** [Src/CMakeFiles/amrex.dir/all] Error 2
make: *** [all] Error 2
This error does not occur when compiling AMReX as a static library (i.e. removing -DBUILD_SHARED_LIBS=ON). Also, I am able to build AMReX as a shared library on Ubuntu (as opposed to MacOS).