DOC add min version for conda and example of flag set by conda
@@ -225,9 +225,9 @@ to enable OpenMP support:
macOS compilers from conda-forge
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-If you use the conda package manager, you can install the ``compilers``
-meta-package from the conda-forge channel, which provides OpenMP-enabled C/C++
-compilers based on the llvm toolchain.
+If you use the conda package manager (version >= 4.7), you can install the
+``compilers`` meta-package from the conda-forge channel, which provides
+OpenMP-enabled C/C++ compilers based on the llvm toolchain.
First install the macOS command line tools::
@@ -264,7 +264,8 @@ variables::
echo $LDFLAGS
They point to files and folders from your ``sklearn-dev`` conda environment
-(in particular in the bin/, include/ and lib/ subfolders).
+(in particular in the bin/, include/ and lib/ subfolders). For instance
+``-L/path/to/conda/envs/sklearn-dev/lib`` should appear in ``LDFLAGS``.
In the log, you should see the compiled extension being built with the clang
and clang++ compilers installed by conda with the ``-fopenmp`` command line
