From f623b123f00358936932e103131bb6e3fc8ea685 Mon Sep 17 00:00:00 2001
From: Nikita Shulga <nshulga@meta.com>
Date: Fri, 2 Dec 2022 04:13:56 +0000
Subject: [PATCH] [Inductor] Do not install g++12 by default (#90038)

Unless `TORCH_INDUCTOR_INSTALL_GXX` environment variable is define
(which is the case for CI)

Fixes #ISSUE_NUMBER

Pull Request resolved: https://github.com/pytorch/pytorch/pull/90038
Approved by: https://github.com/albanD
---
 .jenkins/pytorch/test.sh     | 1 +
 torch/_inductor/codecache.py | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/.jenkins/pytorch/test.sh b/.jenkins/pytorch/test.sh
index 29f9657beaf..414c85abff2 100755
--- a/.jenkins/pytorch/test.sh
+++ b/.jenkins/pytorch/test.sh
@@ -16,6 +16,7 @@ BUILD_RENAMED_DIR="build_renamed"
 BUILD_BIN_DIR="$BUILD_DIR"/bin
 
 export VALGRIND=ON
+export TORCH_INDUCTOR_INSTALL_GXX=ON
 if [[ "$BUILD_ENVIRONMENT" == *clang9* ]]; then
   # clang9 appears to miscompile code involving c10::optional<c10::SymInt>,
   # such that valgrind complains along these lines:
diff --git a/torch/_inductor/codecache.py b/torch/_inductor/codecache.py
index dca8af6cf1b..f4297732b38 100644
--- a/torch/_inductor/codecache.py
+++ b/torch/_inductor/codecache.py
@@ -110,6 +110,9 @@ def cpp_compiler_search(search):
                 # according to https://anaconda.org/conda-forge/gxx/
                 if sys.platform != "linux":
                     continue
+                # Do not install GXX by default
+                if not os.getenv("TORCH_INDUCTOR_INSTALL_GXX"):
+                    continue
                 from filelock import FileLock
 
                 lock_dir = get_lock_dir()