clang native build on macos, retry numpy import on macos (any warning generated causes import error with more recent numpy versions)

Author: jhanna-kx

conda-recipe/meta.yaml

@@ -9,11 +9,13 @@ build:
   detect_binary_files_with_prefix: False
   script_env:
     QLIC
+  overlinking_ignore_patterns:
+   - "q/*/p.so"
 
 requirements:
   build:
-    - m2w64-make                     [win]
-    - {{ compiler('c') }}
+    - m2w64-make                   #  [win]
+    - {{ compiler('c') }}          #  [not osx]
   host:
     - python
     - kdb

makefile

@@ -17,6 +17,8 @@ ifeq ($(UNAME_S),Linux)
 else ifeq ($(UNAME_S),Darwin)
   OSFLAG  = m
   LDFLAGS = -bundle -undefined dynamic_lookup
+  CC=clang
+  CFLAGS += -arch arm64 -arch x86_64
 endif
 
 TGT   = p.so

py.c

@@ -52,7 +52,7 @@ Z K1(setpyerr){P(xt!=-KJ,ktrr())P(!errfmt,krr("traceback.format_exception"))pyer
 ZV*t;EXP K3(init){ZI i=0;I f;S l,h,hh;K n,v;P a,b,c=0;P(i,0)l=zs(x),h=zs(y),hh=zs(z);f=pyl(l);free(l);P(!f,krr("libpython"))
  Py_SetPythonHome(Py_DecodeLocale(h,0));Py_SetProgramName(Py_DecodeLocale(hh,0));free(hh);free(h);Py_InitializeEx(0);if(PyEval_ThreadsInitialized()&&!PyGILState_Check())t0(PyGILState_GetThisThreadState());PyEval_InitThreads();
  M=PyModule_GetDict(PyImport_AddModule("__main__"));cf=k(0,"::",0);n=ktn(KS,0);v=ktn(0,0);
- if((a=PyImport_ImportModule("numpy.core.multiarray"))||(PyErr_Print(),c=PyImport_ImportModule("numpy.core.multiarray"))){N=PyCapsule_GetPointer(b=PyObject_GetAttrString(a?a:c,"_ARRAY_API"),0);if(!N||!pyn(N))N=0;p0(b);p0(a);p0(c);}PyErr_Clear();
+ if((a=PyImport_ImportModule("numpy.core.multiarray"))||(PyErr_Clear(),c=PyImport_ImportModule("numpy.core.multiarray"))){N=PyCapsule_GetPointer(b=PyObject_GetAttrString(a?a:c,"_ARRAY_API"),0);if(!N||!pyn(N))N=0;p0(b);p0(a);p0(c);}PyErr_Clear();
  if(a=PyImport_ImportModule("traceback")){errfmt=PyObject_GetAttrString(a,"format_exception");p0(a);}PyErr_Clear();
 #define F(f,i) js(&n,ss(#f));jk(&v,dl(f,i));
  F(setpyerr,1)F(getpyerr,1)F(eval,1)F(e,1)F(py2q,1)F(q2py,1)F(get,1)F(set,2)F(import,1)F(getattr,2)F(call,3)F(isp,1)F(setconv,1)F(getconv,1)js(&n,ss("numpy"));