Merge pull request #98842 from Calinou/scons-vs-detect-remove-pre-2017

Remove pre-Visual Studio 2017 detection code in the buildsystem

Author: Repiteo

methods.py

@@ -555,40 +555,7 @@ def detect_visual_c_compiler_version(tools_env):
     vc_chosen_compiler_index = -1
     vc_chosen_compiler_str = ""
 
-    # Start with Pre VS 2017 checks which uses VCINSTALLDIR:
-    if "VCINSTALLDIR" in tools_env:
-        # print("Checking VCINSTALLDIR")
-
-        # find() works with -1 so big ifs below are needed... the simplest solution, in fact
-        # First test if amd64 and amd64_x86 compilers are present in the path
-        vc_amd64_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\amd64;")
-        if vc_amd64_compiler_detection_index > -1:
-            vc_chosen_compiler_index = vc_amd64_compiler_detection_index
-            vc_chosen_compiler_str = "amd64"
-
-        vc_amd64_x86_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\amd64_x86;")
-        if vc_amd64_x86_compiler_detection_index > -1 and (
-            vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_amd64_x86_compiler_detection_index
-        ):
-            vc_chosen_compiler_index = vc_amd64_x86_compiler_detection_index
-            vc_chosen_compiler_str = "amd64_x86"
-
-        # Now check the 32 bit compilers
-        vc_x86_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN;")
-        if vc_x86_compiler_detection_index > -1 and (
-            vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_compiler_detection_index
-        ):
-            vc_chosen_compiler_index = vc_x86_compiler_detection_index
-            vc_chosen_compiler_str = "x86"
-
-        vc_x86_amd64_compiler_detection_index = tools_env["PATH"].find(tools_env["VCINSTALLDIR"] + "BIN\\x86_amd64;")
-        if vc_x86_amd64_compiler_detection_index > -1 and (
-            vc_chosen_compiler_index == -1 or vc_chosen_compiler_index > vc_x86_amd64_compiler_detection_index
-        ):
-            vc_chosen_compiler_index = vc_x86_amd64_compiler_detection_index
-            vc_chosen_compiler_str = "x86_amd64"
-
-    # and for VS 2017 and newer we check VCTOOLSINSTALLDIR:
+    # VS 2017 and newer should set VCTOOLSINSTALLDIR
     if "VCTOOLSINSTALLDIR" in tools_env:
         # Newer versions have a different path available
         vc_amd64_compiler_detection_index = (