Reduce KiCad fork divergence with CMake cleanup

- Update kicad submodule: reverted 12 Find*.cmake to upstream,
  deleted FindCURL.cmake (-284 lines, -13 files changed)
- Add GLM_VERSION to build-pcbnew.sh (workaround for KiCad
  overwriting CMAKE_MODULE_PATH)
- Update kicad-diff-stats.sh to compare working tree vs upstream

Fork diff reduced from 81 to 68 files.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

CLAUDE.md

@@ -14,6 +14,8 @@ Always check screenshots for validating tests
 Build wxwidgets with scripts/build-wxuniversal-wasm.sh
 Build kicad with docker/build.sh
 Build CPP wxwidgets tests with scripts/builds-wasm-test.sh
+The build scripts pipe their outputs into log files so that they won't clog the LLM context. 
+Don't pipe outputs, just run the scripts. Maybe with flex if you need that.
 
 Don't change the wxwidgets core unless absolutely necessary, try to fix things in the wasm layer.
 Don't change kicad unless absolutely necessary - keep our fork as close to upstream as possible.

kicad

@@ -1 +1 @@
-Subproject commit a61d2ea4063937eb9536a05b89b2d3d5ead6dd28
+Subproject commit 3bc2ef3a1cffadf19d7414dffe46d403e1e7b57d

scripts/kicad-diff-stats.sh

@@ -1,8 +1,10 @@
 #!/bin/bash
-# Show diff statistics between current KiCad HEAD and last upstream commit
+# Show diff statistics between current KiCad working tree and last upstream commit
 #
 # This helps track how far our KiCad fork has diverged from upstream.
 # We want to keep changes minimal to ease future porting.
+#
+# Note: Compares working tree (including uncommitted changes) vs upstream
 
 set -e
 
@@ -81,19 +83,19 @@ OUR_COMMIT_COUNT=$(git rev-list --count "$UPSTREAM_COMMIT"..HEAD)
 echo "Our commits on top of upstream: $OUR_COMMIT_COUNT" | tee -a "$LOG_FILE"
 echo "" | tee -a "$LOG_FILE"
 
-# Get diff statistics
+# Get diff statistics (comparing working tree to upstream)
 echo "=== Diff Statistics ===" | tee -a "$LOG_FILE"
 echo "" | tee -a "$LOG_FILE"
 
-# Overall stats
-DIFF_STAT=$(git diff --stat "$UPSTREAM_COMMIT"..HEAD)
-DIFF_SHORTSTAT=$(git diff --shortstat "$UPSTREAM_COMMIT"..HEAD)
+# Overall stats - compare working tree to upstream (not HEAD)
+DIFF_STAT=$(git diff --stat "$UPSTREAM_COMMIT")
+DIFF_SHORTSTAT=$(git diff --shortstat "$UPSTREAM_COMMIT")
 
 echo "Summary: $DIFF_SHORTSTAT" | tee -a "$LOG_FILE"
 echo "" | tee -a "$LOG_FILE"
 
 # Detailed breakdown
-DIFF_NUMSTAT=$(git diff --numstat "$UPSTREAM_COMMIT"..HEAD)
+DIFF_NUMSTAT=$(git diff --numstat "$UPSTREAM_COMMIT")
 
 # Count files by type
 TOTAL_FILES=0
@@ -155,8 +157,8 @@ echo "" | tee -a "$LOG_FILE"
 echo "=== Changed Files ===" | tee -a "$LOG_FILE"
 echo "" | tee -a "$LOG_FILE"
 
-# Get list with change type
-git diff --name-status "$UPSTREAM_COMMIT"..HEAD | while IFS=$'\t' read -r status filename; do
+# Get list with change type (working tree vs upstream)
+git diff --name-status "$UPSTREAM_COMMIT" | while IFS=$'\t' read -r status filename; do
     case "$status" in
         A) status_text="[ADDED]    " ;;
         M) status_text="[MODIFIED] " ;;

scripts/kicad/build-pcbnew.sh

@@ -254,6 +254,7 @@ emcmake cmake "${KICAD_DIR}" \
     -DZSTD_INCLUDE_DIR="${SYSROOT}/include" \
     -DZSTD_LIBRARY="${SYSROOT}/lib/libzstd.a" \
     -DGLM_INCLUDE_DIR="${SYSROOT}/include" \
+    -DGLM_VERSION="0.9.9.8" \
     -DBOOST_ROOT="${SYSROOT}" \
     -DBoost_INCLUDE_DIR="${SYSROOT}/include" \
     -DBoost_LIBRARY_DIR="${SYSROOT}/lib" \