Issue #19464 Suppress compiler warnings during clean. Patch by Zachary Ware.

PCbuild/ssl.vcxproj

@@ -122,7 +122,7 @@
 "$(PythonExe)" build_ssl.py Release $(Platform) -a
 </NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
-    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -133,7 +133,7 @@
 "$(PythonExe)" build_ssl.py Release $(Platform) -a
 </NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
-    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
+    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" />
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -144,7 +144,7 @@
 "$(PythonExe)" build_ssl.py Release $(Platform) -a
 </NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
-    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -155,7 +155,7 @@
 "$(PythonExe)" build_ssl.py Release $(Platform) -a
 </NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
-    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
+    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='Release|x64'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='Release|x64'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -166,7 +166,7 @@
 "$(PythonExe)" build_ssl.py Release $(Platform) -a
 </NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" />
-    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" />
+    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'" />
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='PGInstrument|Win32'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -177,7 +177,7 @@
 "$(PythonExe)" build_ssl.py Release $(Platform) -a
 </NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
-    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
+    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'" />
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='PGInstrument|x64'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -188,7 +188,7 @@
 "$(PythonExe)" build_ssl.py Release $(Platform) -a
 </NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" />
-    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" />
+    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'" />
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='PGUpdate|Win32'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>
@@ -199,7 +199,7 @@
 "$(PythonExe)" build_ssl.py Release $(Platform) -a
 </NMakeBuildCommandLine>
     <NMakeReBuildCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" />
-    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" />
+    <NMakeCleanCommandLine Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">echo OpenSSL must be cleaned manually if you want to rebuild it.</NMakeCleanCommandLine>
     <NMakeOutput Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'" />
     <NMakePreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">$(NMakePreprocessorDefinitions)</NMakePreprocessorDefinitions>
     <NMakeIncludeSearchPath Condition="'$(Configuration)|$(Platform)'=='PGUpdate|x64'">$(NMakeIncludeSearchPath)</NMakeIncludeSearchPath>