From 76ae6b54981bf80730be059a1287fe7fe1fbe0c7 Mon Sep 17 00:00:00 2001
From: Nizar Ben Bouchta <nizarbenbouchta@gmail.com>
Date: Tue, 10 Dec 2024 16:05:06 +0000
Subject: [PATCH] another fix 2

---
 keopscore/keopscore/config/__init__.py           |  4 ++--
 keopscore/keopscore/config/base_config.py        | 10 ++++++++--
 pykeops/pykeops/common/keops_io/LoadKeOps_cpp.py |  2 +-
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/keopscore/keopscore/config/__init__.py b/keopscore/keopscore/config/__init__.py
index 4276658a..95cd3d3e 100644
--- a/keopscore/keopscore/config/__init__.py
+++ b/keopscore/keopscore/config/__init__.py
@@ -1,11 +1,11 @@
 # Import the configuration classes
-from .base_config import ConfigNew
+from .base_config import Config
 from .cuda import CUDAConfig
 from .openmp import OpenMPConfig
 from .Platform import DetectPlatform
 
 # Instantiate the configurations
-config = ConfigNew()
+config = Config()
 platform_detector = DetectPlatform()
 cuda_config = CUDAConfig()
 openmp_config = OpenMPConfig()
diff --git a/keopscore/keopscore/config/base_config.py b/keopscore/keopscore/config/base_config.py
index 5a8bcd8f..19e44a34 100644
--- a/keopscore/keopscore/config/base_config.py
+++ b/keopscore/keopscore/config/base_config.py
@@ -8,7 +8,7 @@
 from keopscore.utils.misc_utils import KeOps_Warning
 
 
-class ConfigNew:
+class Config:
     """
     Base configuration class for the KeOps library.
     This class contains common attributes and methods shared by other configuration classes.
@@ -169,7 +169,13 @@ def set_cxx_compiler(self):
         else:
             self.cxx_compiler = None
             KeOps_Warning(
-                "No C++ compiler found. You need to either define the CXX environment variable pointing to a valid compiler, or ensure that 'g++' is installed and in your PATH."
+                """
+                The default C++ compiler could not be found on your system. 
+                You need to either define the CXX environment variable or a symlink to the g++ command.
+                For example if g++-8 is the command you can do:
+                import os
+                os.environ['CXX'] = 'g++-8'
+                """
             )
 
     def get_cxx_compiler(self):
diff --git a/pykeops/pykeops/common/keops_io/LoadKeOps_cpp.py b/pykeops/pykeops/common/keops_io/LoadKeOps_cpp.py
index 166ad60a..7ef66fce 100644
--- a/pykeops/pykeops/common/keops_io/LoadKeOps_cpp.py
+++ b/pykeops/pykeops/common/keops_io/LoadKeOps_cpp.py
@@ -29,7 +29,7 @@ def init_phase1(self):
             f = open(srcname, "w")
             f.write(self.get_pybind11_code())
             f.close()
-            compile_command = f"{keopscore.config.get_cxx_compiler()} {keopscore.config.get_cpp_flags()} {python_includes} {srcname} -o {dllname}"
+            compile_command = f"{config.get_cxx_compiler()} {config.get_cpp_flags()} {python_includes} {srcname} -o {dllname}"
             pyKeOps_Message(
                 "Compiling pykeops cpp " + self.params.tag + " module ... ",
                 flush=True,