compiler from package in recipe (#935)

* compiler from package in recipe

* add tbb and mkl devel packages

* rename env vars for ignore in CI

* search math lib in Python env

Author: Alexander-Makaryev

conda-recipe/meta.yaml

@@ -13,10 +13,11 @@ requirements:
       - cython
       - cmake >=3.16.5
       - dpctl >=0.5.0a0
-      - mkl-devel >=2021.1.1
+      - mkl-devel-dpcpp
+      - tbb-devel
       - wheel
     build:
-      - {{ compiler('cxx') }}
+      - {{ compiler('dpcpp') }}
     run:
       - python
       - dpctl >=0.5.0a0
@@ -29,8 +30,8 @@ build:
     number: {{ GIT_DESCRIBE_NUMBER }}
     include_recipe: False
     script_env:
-      - ONEAPI_ROOT
-      - DPCPPROOT
+      - _ONEAPI_ROOT # renamed for ignore in CI
+      - _DPCPPROOT # renamed for ignore in CI
       - MKLROOT
       - TBBROOT
       - WHEELS_OUTPUT_FOLDER

dpnp/backend/cmake/Modules/FindMathLib.cmake

@@ -51,13 +51,13 @@ endif()
 
 find_path(
   MATHLIB_INCLUDE_DIR oneapi/mkl.hpp
-  HINTS ENV CONDA_PREFIX ${MATHLIB_ROOT_DIR} # search order is important
+  HINTS ENV CONDA_PREFIX ENV PREFIX ${MATHLIB_ROOT_DIR} # search order is important
   PATH_SUFFIXES include latest/include
   DOC "Path to mathlib include files")
 
 find_path(
   MATHLIB_LIBRARY_DIR ${MATHLIB_SYCL_LIB}
-  HINTS ENV CONDA_PREFIX ${MATHLIB_ROOT_DIR} # search order is important
+  HINTS ENV CONDA_PREFIX ENV PREFIX ${MATHLIB_ROOT_DIR} # search order is important
   PATH_SUFFIXES lib latest/lib/intel64
   DOC "Path to mathlib library files")