[PATCH] D60094: [MSVC] If unable to find link.exe from a MSVC installation, look for link.exe next to cl.exe

[Martin Storsjö via Phabricator via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rC358778: [MSVC] If unable to find link.exe from a MSVC installation, look for link.exe… (authored by mstorsjo, committed by ).

Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D60094/new/

https://reviews.llvm.org/D60094

Files:
  lib/Driver/ToolChains/MSVC.cpp


Index: lib/Driver/ToolChains/MSVC.cpp
===================================================================
--- lib/Driver/ToolChains/MSVC.cpp
+++ lib/Driver/ToolChains/MSVC.cpp
@@ -488,8 +488,18 @@
     // their own link.exe which may come first.
     linkPath = FindVisualStudioExecutable(TC, "link.exe");
 
-    if (!TC.FoundMSVCInstall() && !llvm::sys::fs::can_execute(linkPath))
-      C.getDriver().Diag(clang::diag::warn_drv_msvc_not_found);
+    if (!TC.FoundMSVCInstall() && !llvm::sys::fs::can_execute(linkPath)) {
+      llvm::SmallString<128> ClPath;
+      ClPath = TC.GetProgramPath("cl.exe");
+      if (llvm::sys::fs::can_execute(ClPath)) {
+        linkPath = llvm::sys::path::parent_path(ClPath);
+        llvm::sys::path::append(linkPath, "link.exe");
+        if (!llvm::sys::fs::can_execute(linkPath))
+          C.getDriver().Diag(clang::diag::warn_drv_msvc_not_found);
+      } else {
+        C.getDriver().Diag(clang::diag::warn_drv_msvc_not_found);
+      }
+    }
 
 #ifdef _WIN32
     // When cross-compiling with VS2017 or newer, link.exe expects to have


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