OpenCL build.bat: library detection without parentheses in blocks (Program Files (x86) broke the parser)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

proto-opencl/build.bat

@@ -8,7 +8,7 @@ rem   OCL_ROOT       the old AMD APP SDK layout: %OCL_ROOT%\include and %OCL_ROO
 rem The runtime itself (OpenCL.dll in System32 plus the vendor ICD) comes with the AMD Adrenalin driver; no SDK needed to run.
 rem Usage: build.bat [pack]
 rem   pack  directory name under ..\proto-cuda\packs\ (default igneum-genesis-mh)
-setlocal enabledelayedexpansion
+setlocal
 cd /d "%~dp0"
 
 set PACK=%1
@@ -50,23 +50,29 @@ if "%LIB%"=="" (
 echo using headers %INC% and import library %LIB%
 rem Find the MSVC runtime libraries and the Windows SDK libraries ourselves, in case the prompt did not set LIB
 rem (seen on a Visual Studio 2026 install where vcvarsall reported success but linking could not find LIBCMT.lib).
-set EXTRALIB=
+set "EXTRALIB="
-set MSVCLIB=
+set "MSVCLIB="
-for /f "delims=" %%D in ('dir /b /ad /o-n "%VCINSTALLDIR%Tools\MSVC" 2^>nul') do (
+set "SDKLIB="
-  if "!MSVCLIB!"=="" if exist "%VCINSTALLDIR%Tools\MSVC\%%D\lib\x64\libcmt.lib" set MSVCLIB=%VCINSTALLDIR%Tools\MSVC\%%D\lib\x64
+set "VSVC=%VCINSTALLDIR%"
-)
+if "%VSVC%"=="" set "VSVC=C:\Program Files\Microsoft Visual Studio\18\Community\VC\"
-if "%MSVCLIB%"=="" for /f "delims=" %%D in ('dir /b /ad /o-n "C:\Program Files\Microsoft Visual Studio\18\Community\VC\Tools\MSVC" 2^>nul') do (
+set "KITS=C:\Program Files (x86)\Windows Kits\10\Lib"
-  if "!MSVCLIB!"=="" if exist "C:\Program Files\Microsoft Visual Studio\18\Community\VC\Tools\MSVC\%%D\lib\x64\libcmt.lib" set MSVCLIB=C:\Program Files\Microsoft Visual Studio\18\Community\VC\Tools\MSVC\%%D\lib\x64
+for /f "delims=" %%D in ('dir /b /ad /o-n "%VSVC%Tools\MSVC" 2^>nul') do call :msvc "%%D"
-)
+for /f "delims=" %%D in ('dir /b /ad /o-n "%KITS%" 2^>nul') do call :sdk "%%D"
-set SDKLIB=
+goto :found
-for /f "delims=" %%D in ('dir /b /ad /o-n "C:\Program Files (x86)\Windows Kits\10\Lib" 2^>nul') do (
+:msvc
-  if "!SDKLIB!"=="" if exist "C:\Program Files (x86)\Windows Kits\10\Lib\%%D\ucrt\x64\libucrt.lib" set SDKLIB=C:\Program Files (x86)\Windows Kits\10\Lib\%%D
+if not "%MSVCLIB%"=="" goto :eof
-)
+if exist "%VSVC%Tools\MSVC\%~1\lib\x64\libcmt.lib" set "MSVCLIB=%VSVC%Tools\MSVC\%~1\lib\x64"
-if not "%MSVCLIB%"=="" set EXTRALIB=%EXTRALIB% /LIBPATH:"%MSVCLIB%"
+goto :eof
-if not "%SDKLIB%"=="" set EXTRALIB=%EXTRALIB% /LIBPATH:"%SDKLIB%\ucrt\x64" /LIBPATH:"%SDKLIB%\um\x64"
+:sdk
-if "%MSVCLIB%"=="" echo warning: could not find libcmt.lib under any MSVC toolset; install "Desktop development with C++" in the Visual Studio Installer.
+if not "%SDKLIB%"=="" goto :eof
-if "%SDKLIB%"=="" echo warning: could not find the Windows 10/11 SDK libraries under C:\Program Files ^(x86^)\Windows Kits\10\Lib.
+if exist "%KITS%\%~1\ucrt\x64\libucrt.lib" set "SDKLIB=%KITS%\%~1"
-echo libraries: MSVC=%MSVCLIB% SDK=%SDKLIB%
+goto :eof
+:found
+if not "%MSVCLIB%"=="" set "EXTRALIB=/LIBPATH:"%MSVCLIB%""
+if not "%SDKLIB%"=="" set "EXTRALIB=%EXTRALIB% /LIBPATH:"%SDKLIB%\ucrt\x64" /LIBPATH:"%SDKLIB%\um\x64""
+if "%MSVCLIB%"=="" echo warning: no libcmt.lib under any MSVC toolset. Install "Desktop development with C++" in the Visual Studio Installer.
+if "%SDKLIB%"=="" echo warning: no Windows SDK libraries under "%KITS%".
+echo libraries: MSVC="%MSVCLIB%" SDK="%SDKLIB%"
 echo cl /nologo /O2 /W3 /std:c11 /I "%INC%" /I "%PACKDIR%" /DIGNEUM_KERNEL_PATH="\"%PACKDIR:\=/%/kernel.cl\"" /Fe:igneum-bench-cl-%PACK%.exe host.c /link "%LIB%" %EXTRALIB%
 cl /nologo /O2 /W3 /std:c11 /I "%INC%" /I "%PACKDIR%" /DIGNEUM_KERNEL_PATH="\"%PACKDIR:\=/%/kernel.cl\"" /Fe:igneum-bench-cl-%PACK%.exe host.c /link "%LIB%" %EXTRALIB%
 if errorlevel 1 (