Fixed install script for macOS

[myzinsky]

Hello,

please consider this as a "work-in-progress PR", since we have for sure to discuss these steps. The goal is to port systems-compiler to macOS. The install script has some issues with respect to mkdir or wget, since these shell commands work differently on macOS compared to linux. A script for macOS is included in this pull request.

Unfortunately, beside these small cosmetics, there seems to be a more difficult issue that I was not able to solve so far. The step Build and install ISCC is failing because som c-headers could not be found. I think they belong to the standard library, however we don't build this library here, we just build the compiler and not a libc etc... ISCC is also compiled using the previously build compiler:

Consolidate compiler generated dependencies of target SysCRTTI
[ 66%] Generating SystemC precompiled header /Users/myzinsky/Zeugs/sc_tools/icsc/build_icsc_rel/systemc/systemc.h.pch
/Users/myzinsky/Zeugs/sc_tools/bin/clang++ -Xclang -emit-pch -x c++-header /Users/myzinsky/Zeugs/sc_tools/icsc/systemc/src/systemc.h -o /Users/myzinsky/Zeugs/sc_tools/icsc/build_icsc_rel/systemc/systemc.h.pch -D__SC_TOOL__ -D__SC_TOOL_ANALYZE__ -DNDEBUG -std=c++17 -I/Users/myzinsky/Zeugs/sc_tools/icsc/systemc/src
/Applications/Xcode.app/Contents/Developer/usr/bin/make  -f sc_tool/CMakeFiles/SysCRTTI.dir/build.make sc_tool/CMakeFiles/SysCRTTI.dir/build
/Users/myzinsky/Zeugs/sc_tools/icsc/systemc/src/systemc.h:43:10: fatal error: 'cassert' file not found
#include <cassert>
         ^~~~~~~~~
make[2]: Nothing to be done for `sc_tool/CMakeFiles/SysCRTTI.dir/build'.
[ 68%] Built target SysCRTTI
1 error generated.
make[2]: *** [systemc/systemc.h.pch] Error 1
make[1]: *** [CMakeFiles/systemcPCH.dir/all] Error 2
make: *** [all] Error 2

Any thoughts?

[mikhailmoiseev]

Hi,

I already met this issue ('cassert' file not found). Let me refresh that in mind and return in a few days.

-Mikhail.

[myzinsky]

Okay that would be great. Would love to use this tool on macOS natively :-)

[mikhailmoiseev]

Only one thing I could suggest to try is to modify CMakeList.txt in icsc folder: move pre-compiled headers target right after add_subdirectory(systemc)
CMakeLists.txt

[myzinsky]

I did what you suggested, see 54b0383 ... was this what you intended? Unfortunately we still run into this problem:

[ 68%] Built target SysCRTTI
/Users/myzinsky/Zeugs/sc_tools/icsc/systemc/src/systemc.h:43:10: fatal error: 'cassert' file not found
#include <cassert>
         ^~~~~~~~~
1 error generated.
make[2]: *** [systemc/systemc.h.pch] Error 1
make[1]: *** [CMakeFiles/systemcPCH.dir/all] Error 2
make: *** [all] Error 2
[ 63%] Built target systemc
[ 65%] Built target sc_elab_proto
[ 67%] Built target SysCRTTI
[ 68%] Generating SystemC precompiled header /Users/myzinsky/Zeugs/sc_tools/icsc/build_icsc_rel/systemc/systemc.h.pch
/Users/myzinsky/Zeugs/sc_tools/icsc/systemc/src/systemc.h:43:10: fatal error: 'cassert' file not found
#include <cassert>
         ^~~~~~~~~
1 error generated.
make[2]: *** [systemc/systemc.h.pch] Error 1
make[1]: *** [CMakeFiles/systemcPCH.dir/all] Error 2
make: *** [all] Error 2
CMake Warning (dev) at CMakeLists.txt:13 (find_package):
  Ignoring EXACT since no version is requested.
This warning is for project developers.  Use -Wno-dev to suppress it.

[mikhailmoiseev]

cassert located at compiler(gcc) include folder. You could try to find it at your system and add the folder into PATH.
Are you able to build SystemC itself?