Add VC143, aka VS2012, aka cl.exe 17.x toolset.

Adds the vc143 preview toolset to bootstrap and build. Note, vc142 is still the default msvc toolset. When vc143 is released it will become the default with a future change.

src/engine/build.bat

@@ -29,7 +29,7 @@ ECHO ###     .\build.bat msvc
 ECHO ###
 ECHO ### Toolsets supported by this script are: borland, como, gcc,
 ECHO ###     gcc-nocygwin, intel-win32, mingw,
-ECHO ###     vc12, vc14, vc141, vc142
+ECHO ###     vc12, vc14, vc141, vc142, vc143
 ECHO ###
 ECHO ### If you have Visual Studio 2017 installed you will need to either update
 ECHO ### the Visual Studio 2017 installer or run from VS 2017 Command Prompt

src/engine/config_toolset.bat

@@ -11,6 +11,7 @@ if "_%B2_TOOLSET%_" == "_vc12_" call :Config_VC12
 if "_%B2_TOOLSET%_" == "_vc14_" call :Config_VC14
 if "_%B2_TOOLSET%_" == "_vc141_" call :Config_VC141
 if "_%B2_TOOLSET%_" == "_vc142_" call :Config_VC142
+if "_%B2_TOOLSET%_" == "_vc143_" call :Config_VC143
 if "_%B2_TOOLSET%_" == "_borland_" call :Config_BORLAND
 if "_%B2_TOOLSET%_" == "_como_" call :Config_COMO
 if "_%B2_TOOLSET%_" == "_gcc_" call :Config_GCC
@@ -137,6 +138,28 @@ set "B2_CXX_LINK=/link kernel32.lib advapi32.lib user32.lib"
 set "_known_=1"
 goto :eof
 
+:Config_VC143
+if not defined CXX ( set "CXX=cl" )
+call vswhere_usability_wrapper.cmd
+REM Reset ERRORLEVEL since from now on it's all based on ENV vars
+ver > nul 2> nul
+if "_%B2_TOOLSET_ROOT%_" == "__" (
+    if NOT "_%VS170COMNTOOLS%_" == "__" (
+        set "B2_TOOLSET_ROOT=%VS170COMNTOOLS%..\..\VC\"
+    ))
+
+if "_%B2_ARCH%_" == "__" set B2_ARCH=%PROCESSOR_ARCHITECTURE%
+set B2_BUILD_ARGS=%B2_BUILD_ARGS% %B2_ARCH%
+
+REM return to current directory as vsdevcmd_end.bat switches to %USERPROFILE%\Source if it exists.
+pushd %CD%
+if "_%VSINSTALLDIR%_" == "__" call :Call_If_Exists "%B2_TOOLSET_ROOT%Auxiliary\Build\vcvarsall.bat" %B2_BUILD_ARGS%
+popd
+set "B2_CXX="%CXX%" /nologo /MP /MT /TP /Feb2 /wd4996 /O2 /GL /EHsc"
+set "B2_CXX_LINK=/link kernel32.lib advapi32.lib user32.lib"
+set "_known_=1"
+goto :eof
+
 :Config_VCUNK
 if NOT "_%B2_TOOLSET%_" == "_vcunk_" goto Skip_VCUNK
 call vswhere_usability_wrapper.cmd

src/engine/guess_toolset.bat

@@ -33,6 +33,10 @@ REM Let vswhere tell us where msvc is at, if available.
 call :Clear_Error
 call vswhere_usability_wrapper.cmd
 call :Clear_Error
+if NOT "_%VS170COMNTOOLS%_" == "__" (
+    set "B2_TOOLSET=vc143"
+    set "B2_TOOLSET_ROOT=%VS170COMNTOOLS%..\..\VC\"
+    goto :eof)
 if NOT "_%VS160COMNTOOLS%_" == "__" (
     set "B2_TOOLSET=vc142"
     set "B2_TOOLSET_ROOT=%VS160COMNTOOLS%..\..\VC\"

src/engine/vswhere_usability_wrapper.cmd

@@ -17,8 +17,8 @@ if errorlevel 1 goto :no-vswhere
 set VSWHERE_REQ=-requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64
 set VSWHERE_PRP=-property installationPath
 
-REM Visual Studio Unknown Version, Beyond 2019
-set VSWHERE_LMT=-version "[17.0,18.0)"
+REM Visual Studio Unknown Version, Beyond 2022
+set VSWHERE_LMT=-version "[18.0,19.0)"
 set VSWHERE_PRERELEASE=-prerelease
 SET VSWHERE_ARGS=-latest -products * %VSWHERE_REQ% %VSWHERE_PRP% %VSWHERE_LMT% %VSWHERE_PRERELEASE%
 for /f "usebackq tokens=*" %%i in (`vswhere %VSWHERE_ARGS%`) do (
@@ -30,6 +30,19 @@ for /f "usebackq tokens=*" %%i in (`vswhere %VSWHERE_ARGS%`) do (
     exit /B 0
 )
 
+REM Visual Studio 2022
+set VSWHERE_LMT=-version "[17.0,18.0)"
+set VSWHERE_PRERELEASE=-prerelease
+SET VSWHERE_ARGS=-latest -products * %VSWHERE_REQ% %VSWHERE_PRP% %VSWHERE_LMT% %VSWHERE_PRERELEASE%
+for /f "usebackq tokens=*" %%i in (`vswhere %VSWHERE_ARGS%`) do (
+    endlocal
+	echo Found with vswhere %%i
+    @rem comment out setting VCINSTALLDIR for Boost.build
+    @rem set "VCINSTALLDIR=%%i\VC\"
+    set "VS170COMNTOOLS=%%i\Common7\Tools\"
+    exit /B 0
+)
+
 REM Visual Studio 2019 (16.X, toolset 14.2)
 set VSWHERE_LMT=-version "[16.0,17.0)"
 SET VSWHERE_ARGS=-latest -products * %VSWHERE_REQ% %VSWHERE_PRP% %VSWHERE_LMT% %VSWHERE_PRERELEASE%

src/tools/msvc.jam

@@ -1113,7 +1113,15 @@ local rule generate-setup-cmd ( version : command : parent : options * : cpu : g
         }
         else
         {
-            if [ MATCH "(14.2)" : $(version) ]
+            if [ MATCH "(14.3)" : $(version) ]
+            {
+                if $(.debug-configuration)
+                {
+                    ECHO "notice: [generate-setup-cmd] $(version) is 14.3" ;
+                }
+                parent = [ path.native [ path.join  $(parent) "..\\..\\..\\..\\..\\Auxiliary\\Build" ] ] ;
+            }
+            else if [ MATCH "(14.2)" : $(version) ]
             {
                 if $(.debug-configuration)
                 {
@@ -1284,7 +1292,11 @@ local rule configure-really ( version ? : options * )
             # version from the path.
             # FIXME: We currently detect both Microsoft Visual Studio 9.0 and
             # 9.0express as 9.0 here.
-            if [ MATCH "(MSVC\\\\14.2)" : $(command) ]
+            if [ MATCH "(MSVC\\\\14.3)" : $(command) ]
+            {
+                version = 14.3 ;
+            }
+            else if [ MATCH "(MSVC\\\\14.2)" : $(command) ]
             {
                 version = 14.2 ;
             }
@@ -1701,13 +1713,17 @@ local rule default-path ( version )
         # And fortunately, forward slashes do also work in native Windows.
         local vswhere = "$(root)/Microsoft Visual Studio/Installer/vswhere.exe" ;
         # The check for $(root) is to avoid a segmentation fault if not found.
-        if $(version) in 14.1 14.2 default && $(root) && [ path.exists $(vswhere) ]
+        if $(version) in 14.1 14.2 14.3 default && $(root) && [ path.exists $(vswhere) ]
         {
             local req = "-requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64" ;
             local prop = "-property installationPath" ;
             local limit ;
 
-            if $(version) = 14.2 || $(version) = "default"
+            if $(version) = 14.3
+            {
+                limit = "-version \"[17.0,18.0)\" -prerelease" ;
+            }
+            else if $(version) = 14.2 || $(version) = "default"
             {
                 limit = "-version \"[16.0,17.0)\"" ;
             }
@@ -2138,7 +2154,7 @@ for local arch in [ MATCH "^\\.cpus-on-(.*)" : [ VARNAMES $(__name__) ] ]
                      armv7 armv7s ;
 
 # Known toolset versions, in order of preference.
-.known-versions = 14.2 14.1 14.0 12.0 11.0 10.0 10.0express 9.0 9.0express 8.0 8.0express 7.1
+.known-versions = 14.3 14.2 14.1 14.0 12.0 11.0 10.0 10.0express 9.0 9.0express 8.0 8.0express 7.1
     7.1toolkit 7.0 6.0 ;
 
 # Version aliases.
@@ -2185,6 +2201,11 @@ for local arch in [ MATCH "^\\.cpus-on-(.*)" : [ VARNAMES $(__name__) ] ]
     "Microsoft Visual Studio/2019/*/VC/Tools/MSVC/*/bin/Host*/*"
     ;
 .version-14.2-env = VS160COMNTOOLS ProgramFiles ProgramFiles(x86) ;
+.version-14.3-path =
+    "../../VC/Tools/MSVC/*/bin/Host*/*"
+    "Microsoft Visual Studio/2022/*/VC/Tools/MSVC/*/bin/Host*/*"
+    ;
+.version-14.3-env = VS170COMNTOOLS ProgramFiles ProgramFiles(x86) ;
 
 # Auto-detect all the available msvc installations on the system.
 auto-detect-toolset-versions ;