Fix missing compiler macros in cppcheck analysis

Added a function to determine the compiler type (GCC or Clang)
and extract the standard version. This ensures that predefined
macros are correctly passed to cppcheck, preventing false positives
caused by incorrect environment detection in macro evaluations.

Change-Id: I0c8cd7507f081a03f1c1ffec648aed544a0e6466

Author: willy-liu

scripts/pre-commit.hook

@@ -68,7 +68,27 @@ cppcheck_suppressions() {
   printf "%s" "$out" | sed 's/[[:space:]]*$//'
 }
 
+# Generation of standard compliance for GCC/Clang
+detect_cc_std() {
+  local STDC_VERSION=""
+  local EXTRA_DEFINES=""
+  if command -v cc >/dev/null 2>&1; then
+    if cc --version 2>/dev/null | grep -q "clang"; then
+      STDC_VERSION=$(cc -dM -E -xc /dev/null | awk '/__STDC_VERSION__/ {print $3}')
+      EXTRA_DEFINES="-D__clang__=1"
+    elif cc --version 2>/dev/null | grep -q "Free Software Foundation"; then
+      STDC_VERSION=$(cc -dM -E -xc /dev/null | awk '/__STDC_VERSION__/ {print $3}')
+      EXTRA_DEFINES="-D__GNUC__=1"
+    fi
+  fi
+  if [ -n "$STDC_VERSION" ]; then
+    EXTRA_DEFINES+=" -D__STDC__=1 -D__STDC_VERSION__=${STDC_VERSION}"
+  fi
+  echo "$EXTRA_DEFINES"
+}
+
 CPPCHECK_OPTS="-I. --enable=all --error-exitcode=1"
+CPPCHECK_OPTS+=" $(detect_cc_std)"
 CPPCHECK_OPTS+=" --force $(cppcheck_suppressions) $(cppcheck_build_unmatched)"
 CPPCHECK_OPTS+=" --cppcheck-build-dir=.out ."