Tweak .clangd to work with gcc-compiled Emacs (bug#78367)

A Gcc configuration of Emacs emits -fstrict-flex-arrays but
clangd doesn't understand that.  This causes spurious errors of
"unknown flag" that prevent analysis.  So tweak .clangd to the
nearest clang equivalent (which is very similar).

* .clangd (CompileFlags): Remove -fstrict-flex-arrays, add
-fstrict-flex-arrays=3.

1 files changed, 2 insertions, 1 deletions

diff --git a/.clangd b/.clangd
index 469d33dfd03..5c7308d64ae 100644
--- a/.clangd
+++ b/.clangd
@@ -2,4 +2,5 @@
 If:
     PathMatch: "src/*.c"
 CompileFlags:
-    Add: [-Wno-unused-macros, -include=config.h]
+    Add: [-Wno-unused-macros, -include=config.h, -fstrict-flex-arrays=3]
+    Remove: [-fstrict-flex-arrays]