From 77869a0567f4c2e029c679525b29da53433d8d9f Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 22 Jul 2016 16:20:21 +0200
Subject: Factor target CPU to VC /MACHINE option translation

---
 build2/cxx/link.cxx | 32 +++++++++++++-------------------
 build2/cxx/msvc.cxx | 17 +++++++++++++++++
 2 files changed, 30 insertions(+), 19 deletions(-)

diff --git a/build2/cxx/link.cxx b/build2/cxx/link.cxx
index 34495b0..3ce99c9 100644
--- a/build2/cxx/link.cxx
+++ b/build2/cxx/link.cxx
@@ -1072,6 +1072,9 @@ namespace build2
     void
     windows_rpath_assembly (file&, timestamp, bool scratch);
 
+    const char*
+    msvc_machine (const string& cpu); // msvc.cxx
+
     target_state link::
     perform_update (action a, target& xt)
     {
@@ -1252,25 +1255,6 @@ namespace build2
       string soname1, soname2;
       strings sargs;
 
-      if (cid == "msvc")
-      {
-        // Translate the compiler target CPU to the /MACHINE option value.
-        // This applies to both link.exe and lib.exe.
-        //
-        const string& tcpu (cast<string> (rs["cxx.target.cpu"]));
-
-        const char* m (tcpu == "i386" || tcpu == "i686"  ? "/MACHINE:x86"   :
-                       tcpu == "x86_64"                  ? "/MACHINE:x64"   :
-                       tcpu == "arm"                     ? "/MACHINE:ARM"   :
-                       tcpu == "arm64"                   ? "/MACHINE:ARM64" :
-                       nullptr);
-
-        if (m == nullptr)
-          fail << "unable to translate CPU " << tcpu << " to /MACHINE";
-
-        args.push_back (m);
-      }
-
       if (lt == otype::a)
       {
         if (cid == "msvc") ;
@@ -1488,6 +1472,11 @@ namespace build2
             if (verb < 3)
               args.push_back ("/NOLOGO");
 
+            // Add /MACHINE.
+            //
+            args.push_back (
+              msvc_machine (cast<string> (rs["cxx.target.cpu"])));
+
             out = "/OUT:" + relt.string ();
             args.push_back (out.c_str ());
           }
@@ -1513,6 +1502,11 @@ namespace build2
             if (lt == otype::s)
               args.push_back ("/DLL");
 
+            // Add /MACHINE.
+            //
+            args.push_back (
+              msvc_machine (cast<string> (rs["cxx.target.cpu"])));
+
             // Unless explicitly enabled with /INCREMENTAL, disable
             // incremental linking (it is implicitly enabled if /DEBUG is
             // specified). The reason is the .ilk file: its name cannot be
diff --git a/build2/cxx/msvc.cxx b/build2/cxx/msvc.cxx
index ff91018..97d8fd5 100644
--- a/build2/cxx/msvc.cxx
+++ b/build2/cxx/msvc.cxx
@@ -20,6 +20,23 @@ namespace build2
   {
     using namespace bin;
 
+    // Translate the target triplet CPU to lib.exe/link.exe /MACHINE option.
+    //
+    const char*
+    msvc_machine (const string& cpu)
+    {
+      const char* m (cpu == "i386" || cpu == "i686"  ? "/MACHINE:x86"   :
+                     cpu == "x86_64"                 ? "/MACHINE:x64"   :
+                     cpu == "arm"                    ? "/MACHINE:ARM"   :
+                     cpu == "arm64"                  ? "/MACHINE:ARM64" :
+                     nullptr);
+
+      if (m == nullptr)
+        fail << "unable to translate CPU " << cpu << " to /MACHINE";
+
+      return m;
+    }
+
     // Extract system library search paths from MSVC.
     //
     void
-- 
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