measure: CMake paths in the chain-loaded toolchain file [vcpkg-only]

Author: speak-agent

.github/workflows/measure-734.yml

@@ -76,11 +76,15 @@ jobs:
           printf '%s\n%s\n' "$base" "$chain" | sed 's/^ *//' > "$T/x64-windows-chain.cmake"
           printf '%s\n%s\nset(VCPKG_LOAD_VCVARS_ENV ON)\n' "$base" "$chain" | sed 's/^ *//' > "$T/x64-windows-chainvc.cmake"
           cat > "$T/chain.cmake" <<'EOF'
-          set(CMAKE_C_COMPILER "$ENV{MEASURE_CL}")
-          set(CMAKE_CXX_COMPILER "$ENV{MEASURE_CL}")
-          set(CMAKE_RC_COMPILER "$ENV{MEASURE_RC}")
-          set(CMAKE_MT "$ENV{MEASURE_MT}")
-          include("$ENV{MEASURE_VCPKG_ROOT}/scripts/toolchains/windows.cmake")
+          file(TO_CMAKE_PATH "$ENV{MEASURE_CL}" _cl)
+          file(TO_CMAKE_PATH "$ENV{MEASURE_RC}" _rc)
+          file(TO_CMAKE_PATH "$ENV{MEASURE_MT}" _mt)
+          file(TO_CMAKE_PATH "$ENV{MEASURE_VCPKG_ROOT}" _vr)
+          set(CMAKE_C_COMPILER "${_cl}")
+          set(CMAKE_CXX_COMPILER "${_cl}")
+          set(CMAKE_RC_COMPILER "${_rc}")
+          set(CMAKE_MT "${_mt}")
+          include("${_vr}/scripts/toolchains/windows.cmake")
           EOF
           sed -i 's/^ *//' "$T/chain.cmake"
           cat "$T"/*.cmake
@@ -135,7 +139,6 @@ jobs:
 
   vcpkg-managed:
     name: M3 P3 (Visual Studio masked, managed msvc)
-    if: "!contains(github.event.head_commit.message, '[vs-only]')"
     runs-on: windows-2025
     timeout-minutes: 150
     defaults: { run: { shell: bash } }
@@ -192,9 +195,11 @@ jobs:
             'set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE "${CMAKE_CURRENT_LIST_DIR}/chain.cmake")' \
             'set(VCPKG_ENV_PASSTHROUGH_UNTRACKED INCLUDE LIB LIBPATH MEASURE_CL MEASURE_RC MEASURE_MT MEASURE_VCPKG_ROOT)' \
             > "$T/x64-windows-chain.cmake"
-          printf '%s\n' 'set(CMAKE_C_COMPILER "$ENV{MEASURE_CL}")' 'set(CMAKE_CXX_COMPILER "$ENV{MEASURE_CL}")' \
-            'set(CMAKE_RC_COMPILER "$ENV{MEASURE_RC}")' 'set(CMAKE_MT "$ENV{MEASURE_MT}")' \
-            'include("$ENV{MEASURE_VCPKG_ROOT}/scripts/toolchains/windows.cmake")' > "$T/chain.cmake"
+          printf '%s\n' 'file(TO_CMAKE_PATH "$ENV{MEASURE_CL}" _cl)' 'file(TO_CMAKE_PATH "$ENV{MEASURE_RC}" _rc)' \
+            'file(TO_CMAKE_PATH "$ENV{MEASURE_MT}" _mt)' 'file(TO_CMAKE_PATH "$ENV{MEASURE_VCPKG_ROOT}" _vr)' \
+            'set(CMAKE_C_COMPILER "${_cl}")' 'set(CMAKE_CXX_COMPILER "${_cl}")' \
+            'set(CMAKE_RC_COMPILER "${_rc}")' 'set(CMAKE_MT "${_mt}")' \
+            'include("${_vr}/scripts/toolchains/windows.cmake")' > "$T/chain.cmake"
           setenv() {  # $1 = the toolset directory
             w() { cygpath -w "$1"; }
             export MEASURE_CL="$(w "$1/bin/Hostx64/x64/cl.exe")"
@@ -226,7 +231,7 @@ jobs:
 
   mcpp-legs:
     name: E2b E4 (mcpp 2026.9.28.2)
-    if: "!contains(github.event.head_commit.message, '[vs-only]')"
+    if: "!contains(github.event.head_commit.message, '[vcpkg-only]')"
     runs-on: windows-2025
     timeout-minutes: 120
     defaults: { run: { shell: bash } }