Compilation fails on Mac OS

[FTurci]

The latest development version does not compile on the Mac. The problem is that Mac OS is not contemplated in the make_directory function.

Here is the error during make

/Users/ft14968/Documents/GitHub/TCC/tcc/src/tools.c: In function 'make_directory':
/Users/ft14968/Documents/GitHub/TCC/tcc/src/tools.c:105:12: warning: implicit declaration of function '_mkdir' [-Wimplicit-function-declaration]
         if(_mkdir(name) != 0) {
            ^~~~~~
[ 97%] Building C object tcc/src/CMakeFiles/tcc.dir/voronoi_bonds.c.o
[100%] Linking C executable ../../../bin/tcc
Undefined symbols for architecture x86_64:
  "__mkdir", referenced from:
      _make_directory in tools.c.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
make[2]: *** [../bin/tcc] Error 1
make[1]: *** [tcc/src/CMakeFiles/tcc.dir/all] Error 2
make: *** [all] Error 2

[merrygoat]

Oops, I forgot Apple was a thing. Commit 2a6414d should hopefully resolve this but I don't have an Apple to test directly.

[tranqui]

The integration test in test/TCC/tcc_test.py should have an option to build on mac too. The steps should be the same as for linux, so perhaps only ine 30 need be changed:
elif system() == "Linux":
to include an additional conditional for Mac OS X?

[tranqui]

Made change in commit c48a20e. Building should work now on Mac OS X

[tranqui]

Build seems to work successfully now on @FTurci's machine, but the other tests fail. The resulting executable does not seem to work correctly; it appears it may be due to the tcc running in the wrong directory.

[merrygoat]

Can we just abandon support for OSX based on the fact that macs are expensive fashion icons for arty people and aren't used by anyone serious?

[FTurci]

Compilation works. The latest development version simply has another bug related to the output (too many NAs...).

Other remark: "make" should be followed by "make install" and we should not have plenty of executables copied everywhere. "cmake" has also a prefix option. This was a source of confusion when we tried to identify the issue.

Finally, there are many more Mac users than Windows users in the group.