[temp] probe: the C library model of each part

Author: Sunrisepeak

.github/workflows/probe-win-unit-av.yml

@@ -28,6 +28,35 @@ jobs:
           echo "print-launch: $?"; tail -3 launch.err
           cat launch.json | head -c 6000
           exit 0
+      - name: which C library model each part was compiled for, and what the link says
+        shell: bash
+        continue-on-error: true
+        run: |
+          set +e +o pipefail
+          export MCPP_VENDORED_XLINGS=$(cygpath -w "$USERPROFILE/.xlings/subos/default/bin/xlings.exe")
+          llvm="$USERPROFILE/.mcpp/registry/data/xpkgs/xim-x-llvm/23.1.3/bin"
+          exe=$(find target -name unit.exe | head -1)
+          dir=$(dirname "$(dirname "$exe")")
+          echo "dir=$dir"; ls "$dir" | head -30
+          for n in $(find "$dir" -maxdepth 2 -name '*.ninja' | head -5); do
+            echo "== $n"; grep -o 'fms-runtime-lib=[a-z_]*' "$n" | sort | uniq -c
+            grep -o -E '(/|-)(MD|MT)d?\b' "$n" | sort | uniq -c | head
+          done
+          echo "== the default libraries each object names"
+          for pat in 'compat_xz/.*crc32_fast' 'compat_zstd' 'compat_zlib' 'mcpplibs_os' 'mcpplibs_mtest' 'nlohmann' 'test_pack_distribution' 'compress_codecs' 'mwrap'; do
+            o=$(find "$dir" -type f \( -name '*.o' -o -name '*.obj' \) | grep -E "$pat" | head -1)
+            [ -n "$o" ] || { echo "$pat: no object"; continue; }
+            echo "$pat: $o"
+            "$llvm/llvm-readobj.exe" --coff-directives "$o" 2>/dev/null | tr ' ' '\n' | grep -i -E 'defaultlib|alternatename|failifmismatch' | sort -u | head -12
+          done
+          echo "== every default library and mismatch statement of the build"
+          find "$dir" -type f \( -name '*.o' -o -name '*.obj' \) > objs.txt; wc -l objs.txt
+          while read -r o; do "$llvm/llvm-readobj.exe" --coff-directives "$o" 2>/dev/null | tr ' ' '\n' | grep -i -E 'defaultlib|failifmismatch.*RuntimeLibrary|alternatename' ; done < objs.txt | sort | uniq -c | sort -rn | head -40
+          echo "== the link, again, with what the linker says"
+          rm -f "$exe"
+          mcpp test test_pack_distribution --no-run --verbose > relink.log 2>&1 || mcpp test test_pack_distribution --no-run -v > relink.log 2>&1
+          grep -a -i -E 'warning|locally defined|lld-link' relink.log | cut -c1-300 | head -60
+          grep -a -c . relink.log; tail -5 relink.log | cut -c1-300
       - name: where the call came from
         shell: bash
         continue-on-error: true