OSX: building calypso gives: error: unknown type name '_Unwind_Ptr'

[timotheecour]

IIRC i didn't use to have this problem yesterday; It may be related to having run
xcode-select --install

In file included from /Users/timothee/git_clone/D/Calypso/build5/runtime/calypso-ldc-debug-cpp/calypso_cache.h:1:
/Users/timothee/git_clone/D/Calypso/runtime/calypso/cpp/eh/unwind-cxx.h:92:3: error: unknown type name '_Unwind_Ptr'
_Unwind_Ptr catchTemp;

[Syniurge]

Until macOS support improves, in unwind.h it's defined as:

typedef uintptr_t _Unwind_Ptr;

[timotheecour]

I saw that but there'll be a bunch of other errors besides that, that was just the 1st one.

the following WORKAROUND did the trick:

in Calypso/runtime/calypso/cpp/eh/unwind-cxx.h:
replace

#include "unwind.h"

with something like:

#include "/Users/timothee/temp/brew/Cellar/gcc/7.2.0/lib/gcc/7/gcc/x86_64-apple-darwin17.2.0/7.2.0/include/unwind.h"

a better workaround is needed but that should help others with this issue.

[timotheecour]

here's a better fix:

update this as needed on your system

gcc_D=/Users/timothee/homebrew//Cellar/gcc/7.2.0/

ccmake -D LLVM_CONFIG=$homebrew_D/Cellar/llvm@3.9/3.9.1_1/bin/llvm-config -D D_FLAGS="-cpp-args=-I$gcc_D/include/c++/7.2.0;-cpp-args=-I$gcc_D/include/c++/7.2.0/x86_64-apple-darwin17.2.0;-cpp-args=-I$gcc_D/lib/gcc/7/gcc/x86_64-apple-darwin17.2.0/7.2.0/include" ..

that's the minimal set of flags that work for me on OSX

NOTE: this can be closed once build instructions for OSX are updated on readme.md

[timotheecour]

updated README in 9cb7187 so closing this