1 files changed, 121 insertions, 0 deletions
diff --git a/scripts/ue_build_linux/verify_linux_toolchains.sh b/scripts/ue_build_linux/verify_linux_toolchains.sh
new file mode 100755
index 000000000..10fad8a82
--- /dev/null
+++ b/scripts/ue_build_linux/verify_linux_toolchains.sh
@@ -0,0 +1,121 @@
+#!/usr/bin/env bash
+#
+# Verify that the project builds on Linux with gcc, ue-clang, clang-19 and clang-20.
+# Each toolchain gets a clean slate (build dirs + xmake caches wiped).
+#
+# Usage:
+#   ./scripts/verify_linux_toolchains.sh                    # build all four
+#   ./scripts/verify_linux_toolchains.sh gcc clang-19       # build only specific ones
+#   ./scripts/verify_linux_toolchains.sh --clean             # also wipe ~/.xmake package cache
+#
+# Installing toolchains (Ubuntu 24.04):
+#   - gcc: sudo apt install build-essential
+#   - ue-clang: use scripts/ue_build_linux/get_ue_toolchain.sh
+#   - clang-19: sudo apt install clang-19
+#   - clang-20: sudo apt install clang-20
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_DIR="$(cd "$SCRIPT_DIR/../.." && pwd)"
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+PASSED=()
+FAILED=()
+declare -A TIMINGS
+CLEAN_XMAKE_HOME=false
+
+clean_build_state() {
+    echo -e "${YELLOW}Cleaning build state...${NC}"
+    rm -rf "$PROJECT_DIR/.xmake" "$PROJECT_DIR/build"
+    if [ "$CLEAN_XMAKE_HOME" = true ]; then
+        rm -rf ~/.xmake
+    fi
+}
+
+build_toolchain() {
+    local NAME="$1"
+    shift
+    local CONFIG_ARGS=("$@")
+
+    echo ""
+    echo "============================================================"
+    echo -e "${YELLOW}Building with: ${NAME}${NC}"
+    echo "  xmake config args: ${CONFIG_ARGS[*]}"
+    echo "============================================================"
+
+    clean_build_state
+
+    local START_TIME=$SECONDS
+
+    if ! (cd "$PROJECT_DIR" && xmake config -y -m debug "${CONFIG_ARGS[@]}"); then
+        TIMINGS[$NAME]=$(( SECONDS - START_TIME ))
+        echo -e "${RED}FAILED: ${NAME} (config, ${TIMINGS[$NAME]}s)${NC}"
+        FAILED+=("$NAME")
+        return 1
+    fi
+
+    if ! (cd "$PROJECT_DIR" && xmake -y -j"$(nproc)"); then
+        TIMINGS[$NAME]=$(( SECONDS - START_TIME ))
+        echo -e "${RED}FAILED: ${NAME} (build, ${TIMINGS[$NAME]}s)${NC}"
+        FAILED+=("$NAME")
+        return 1
+    fi
+
+    TIMINGS[$NAME]=$(( SECONDS - START_TIME ))
+    echo -e "${GREEN}PASSED: ${NAME} (${TIMINGS[$NAME]}s)${NC}"
+    PASSED+=("$NAME")
+}
+
+# Available toolchain configurations
+declare -A TOOLCHAINS
+TOOLCHAINS[gcc]="--toolchain=gcc"
+TOOLCHAINS[ue-clang]="--toolchain=ue-clang"
+TOOLCHAINS[clang-19]="--toolchain=clang-19"
+TOOLCHAINS[clang-20]="--toolchain=clang-20"
+
+# Parse arguments
+SELECTED=()
+for ARG in "$@"; do
+    if [ "$ARG" = "--clean" ]; then
+        CLEAN_XMAKE_HOME=true
+    else
+        SELECTED+=("$ARG")
+    fi
+done
+
+if [ ${#SELECTED[@]} -eq 0 ]; then
+    SELECTED=(gcc ue-clang clang-19 clang-20)
+fi
+
+TOTAL_START=$SECONDS
+
+for TC in "${SELECTED[@]}"; do
+    if [ -z "${TOOLCHAINS[$TC]+x}" ]; then
+        echo -e "${RED}Unknown toolchain: ${TC}${NC}"
+        echo "Available: ${!TOOLCHAINS[*]}"
+        exit 1
+    fi
+
+    # shellcheck disable=SC2086
+    build_toolchain "$TC" ${TOOLCHAINS[$TC]} || true
+done
+
+TOTAL_ELAPSED=$(( SECONDS - TOTAL_START ))
+
+echo ""
+echo "============================================================"
+echo "Results (${TOTAL_ELAPSED}s total):"
+echo "============================================================"
+for TC in "${PASSED[@]}"; do
+    echo -e "  ${GREEN}PASS${NC}  ${TC}  (${TIMINGS[$TC]}s)"
+done
+for TC in "${FAILED[@]}"; do
+    echo -e "  ${RED}FAIL${NC}  ${TC}  (${TIMINGS[$TC]}s)"
+done
+
+[ ${#FAILED[@]} -eq 0 ]