Compilation on Mac

[edgardomortiz]

Hi, I found the tool useful and easy to use, therefore I wanted to include it in a pipeline that I would like to make available in Mac and Linux. The compiler gives this error:

$ make
rm -rf target
mvn clean
[INFO] Scanning for projects...
[INFO]
[INFO] ----------------------------< abra2:abra2 >-----------------------------
[INFO] Building abra 2.19
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ abra2 ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  0.303 s
[INFO] Finished at: 2019-08-15T23:12:11+02:00
[INFO] ------------------------------------------------------------------------
mkdir target
clang -g -O2 -Isrc/main/c -I/Users/pbiodiv/miniconda2/include -I/Users/pbiodiv/miniconda2/include/linux -shared -fPIC src/main/c/assembler.cpp src/main/c/sg_aligner.cpp -o target/libAbra.so
In file included from src/main/c/assembler.cpp:11:
src/main/c/sparsehash/sparse_hash_map:94:10: fatal error: 'tr1/functional' file not found
#include HASH_FUN_H                 // for hash<>
         ^
src/main/c/sparsehash/internal/sparseconfig.h:10:20: note: expanded from macro 'HASH_FUN_H'
#define HASH_FUN_H <tr1/functional>
                   ^~~~~~~~~~~~~~~~
1 error generated.
make: *** [native] Error 1

And doing some research I found out it is caused by the use of libstdc++ which became deprecated in Mac since version 10.8. Is it possible to modify ABRA2 to be able to compile using libc++ ? or it basically would imply re-writing it?

Thanks

Edgardo