@@ -137,32 +137,32 @@ jobs:
137137         shell : bash 
138138
139139      #  matrix.ocaml_compiler may contain commas
140-       - name : Get OPAM cache key 
141-         shell : bash 
142-         run : echo "opam_cache_key=opam-env-v8-${{ matrix.os }}-${{ matrix.ocaml_compiler }}-${{ hashFiles('*.opam') }}" | sed 's/,/-/g' >> $GITHUB_ENV 
140+       #   - name: Get OPAM cache key
141+       #     shell: bash
142+       #     run: echo "opam_cache_key=opam-env-v8-${{ matrix.os }}-${{ matrix.ocaml_compiler }}-${{ hashFiles('*.opam') }}" | sed 's/,/-/g' >> $GITHUB_ENV
143143
144-       - name : Restore OPAM environment 
145-         id : cache-opam-env 
146-         uses : actions/cache/restore@v4 
147-         with :
148-           path : | 
149-             ${{ runner.tool_cache }}/opam 
150-             ~/.opam 
151-             _opam 
152-             .opam-path 
153-             D:\cygwin 
154-             D:\.opam 
155-            key : ${{ env.opam_cache_key }} 
144+       #   - name: Restore OPAM environment
145+       #     id: cache-opam-env
146+       #     uses: actions/cache/restore@v4
147+       #     with:
148+       #       path: |
149+       #         ${{ runner.tool_cache }}/opam
150+       #         ~/.opam
151+       #         _opam
152+       #         .opam-path
153+       #         D:\cygwin
154+       #         D:\.opam
155+       #       key: ${{ env.opam_cache_key }}
156156
157157      - name : Use OCaml ${{matrix.ocaml_compiler}} 
158158159-         if : steps.cache-opam-env.outputs.cache-hit != 'true' 
159+         #   if: steps.cache-opam-env.outputs.cache-hit != 'true'
160160        with :
161161          ocaml-compiler : ${{matrix.ocaml_compiler}} 
162162          opam-pin : false 
163163
164164      - name : Get OPAM executable path 
165-         if : steps.cache-opam-env.outputs.cache-hit != 'true' 
165+         #   if: steps.cache-opam-env.outputs.cache-hit != 'true'
166166        uses : actions/github-script@v7 
167167        with :
168168          script : | 
@@ -174,63 +174,63 @@ jobs:
174174            console.log('stored path to .opam-path'); 
175175
176176       - name : Install OPAM dependencies 
177-         if : steps.cache-opam-env.outputs.cache-hit != 'true' 
177+         #   if: steps.cache-opam-env.outputs.cache-hit != 'true'
178178        run : opam install . --deps-only --with-test 
179179
180-       - name : Cache OPAM environment 
181-          if : steps.cache-opam-env.outputs.cache-hit != 'true' 
182-         uses : actions/cache/save@v4 
183-         with :
184-           path : | 
185-             ${{ runner.tool_cache }}/opam 
186-             ~/.opam 
187-             _opam 
188-             .opam-path 
189-             D:\cygwin 
190-             D:\.opam 
191-            key : ${{ env.opam_cache_key }} 
192- 
193-       - name : Use cached OPAM environment 
194-         if : steps.cache-opam-env.outputs.cache-hit == 'true' 
195-         run : | 
196-           # https://github.com/ocaml/setup-ocaml/blob/b2105f9/packages/setup-ocaml/src/installer.ts#L33 
197-           echo "OPAMVERBOSE=$RUNNER_DEBUG"   >> "$GITHUB_ENV" 
198-           echo "OPAMCOLOR=always"            >> "$GITHUB_ENV" 
199-           echo "OPAMCONFIRMLEVEL=unsafe-yes" >> "$GITHUB_ENV" 
200-           echo "OPAMERRLOGLEN=0"             >> "$GITHUB_ENV" 
201-           echo "OPAMPRECISETRACKING=1"       >> "$GITHUB_ENV" 
202-           echo "OPAMYES=1"                   >> "$GITHUB_ENV" 
203- 
204-           if [[ "$RUNNER_OS" != "Windows" ]]; then 
205-             echo "OPAMROOT=$HOME/.opam"      >> "$GITHUB_ENV" 
206-           else 
207-             echo "OPAMROOT=D:\\.opam"        >> "$GITHUB_ENV" 
208-           fi 
209- 
210-           OPAM_PATH="$(cat .opam-path)" 
211-           chmod +x "$OPAM_PATH" 
212-           dirname "$OPAM_PATH" >> "$GITHUB_PATH" 
213- 
214-           if [[ "$RUNNER_OS" == "Windows" ]]; then 
215-             fsutil behavior query SymlinkEvaluation 
216-             fsutil behavior set symlinkEvaluation R2L:1 R2R:1 
217-             fsutil behavior query SymlinkEvaluation 
218- 
219-             CYGWIN="winsymlinks:native" 
220-             CYGWIN_ROOT="D:\\cygwin" 
221-             CYGWIN_ROOT_BIN="D:\\cygwin\\bin" 
222-             CYGWIN_ROOT_WRAPPERBIN="D:\\cygwin\\wrapperbin" 
223- 
224-             echo "HOME=$USERPROFILE" >> "$GITHUB_ENV" 
225-             echo "MSYS=winsymlinks:native" >> "$GITHUB_ENV" 
226-             echo "CYGWIN=$CYGWIN" >> "$GITHUB_ENV" 
227-             echo "CYGWIN_ROOT=$CYGWIN_ROOT" >> "$GITHUB_ENV" 
228-             echo "CYGWIN_ROOT_BIN=$CYGWIN_ROOT_BIN" >> "$GITHUB_ENV" 
229-             echo "CYGWIN_ROOT_WRAPPERBIN=$CYGWIN_ROOT_WRAPPERBIN" >> "$GITHUB_ENV" 
230- 
231-             echo "$CYGWIN_ROOT_WRAPPERBIN" >> "$GITHUB_PATH" 
232-           fi 
233-          shell : bash 
180+       #   - name: Cache OPAM environment
181+       #    #  if: steps.cache-opam-env.outputs.cache-hit != 'true'
182+       #     uses: actions/cache/save@v4
183+       #     with:
184+       #       path: |
185+       #         ${{ runner.tool_cache }}/opam
186+       #         ~/.opam
187+       #         _opam
188+       #         .opam-path
189+       #         D:\cygwin
190+       #         D:\.opam
191+       #       key: ${{ env.opam_cache_key }}
192+ 
193+       #   - name: Use cached OPAM environment
194+       #     if: steps.cache-opam-env.outputs.cache-hit == 'true'
195+       #     run: |
196+       #       # https://github.com/ocaml/setup-ocaml/blob/b2105f9/packages/setup-ocaml/src/installer.ts#L33
197+       #       echo "OPAMVERBOSE=$RUNNER_DEBUG"   >> "$GITHUB_ENV"
198+       #       echo "OPAMCOLOR=always"            >> "$GITHUB_ENV"
199+       #       echo "OPAMCONFIRMLEVEL=unsafe-yes" >> "$GITHUB_ENV"
200+       #       echo "OPAMERRLOGLEN=0"             >> "$GITHUB_ENV"
201+       #       echo "OPAMPRECISETRACKING=1"       >> "$GITHUB_ENV"
202+       #       echo "OPAMYES=1"                   >> "$GITHUB_ENV"
203+ 
204+       #       if [[ "$RUNNER_OS" != "Windows" ]]; then
205+       #         echo "OPAMROOT=$HOME/.opam"      >> "$GITHUB_ENV"
206+       #       else
207+       #         echo "OPAMROOT=D:\\.opam"        >> "$GITHUB_ENV"
208+       #       fi
209+ 
210+       #       OPAM_PATH="$(cat .opam-path)"
211+       #       chmod +x "$OPAM_PATH"
212+       #       dirname "$OPAM_PATH" >> "$GITHUB_PATH"
213+ 
214+       #       if [[ "$RUNNER_OS" == "Windows" ]]; then
215+       #         fsutil behavior query SymlinkEvaluation
216+       #         fsutil behavior set symlinkEvaluation R2L:1 R2R:1
217+       #         fsutil behavior query SymlinkEvaluation
218+ 
219+       #         CYGWIN="winsymlinks:native"
220+       #         CYGWIN_ROOT="D:\\cygwin"
221+       #         CYGWIN_ROOT_BIN="D:\\cygwin\\bin"
222+       #         CYGWIN_ROOT_WRAPPERBIN="D:\\cygwin\\wrapperbin"
223+ 
224+       #         echo "HOME=$USERPROFILE" >> "$GITHUB_ENV"
225+       #         echo "MSYS=winsymlinks:native" >> "$GITHUB_ENV"
226+       #         echo "CYGWIN=$CYGWIN" >> "$GITHUB_ENV"
227+       #         echo "CYGWIN_ROOT=$CYGWIN_ROOT" >> "$GITHUB_ENV"
228+       #         echo "CYGWIN_ROOT_BIN=$CYGWIN_ROOT_BIN" >> "$GITHUB_ENV"
229+       #         echo "CYGWIN_ROOT_WRAPPERBIN=$CYGWIN_ROOT_WRAPPERBIN" >> "$GITHUB_ENV"
230+ 
231+       #         echo "$CYGWIN_ROOT_WRAPPERBIN" >> "$GITHUB_PATH"
232+       #       fi
233+       #     shell: bash
234234
235235      - name : Compiler build state key 
236236        id : compiler-build-state-key 
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