Track build configuration and preserve incremental header dependencies

2 days ago · ff9d205d5b
2 changed files with 187 additions and 200 deletions
--- a/build.sh
+++ b/build.sh
@ -1,216 +1,195 @@
 #!/bin/bash
-# Build script for uTun (supports both Linux and Windows/MSYS2)
-# Usage: ./build.sh [options]
-# Options:
-#   -h, --help      Show this help
-#   --clean         Clean before build
-#   --full          Full rebuild (autoreconf + configure + make)
-#   --asan          Build with AddressSanitizer (debug)
-#   --hardened      Build with compiler security hardening flags
-#   -j[N]           Build with N parallel jobs (default: 4)
+# Инкрементальная сборка Linux и Windows/MSYS2; флаги задаются через configure.
+set -euo pipefail
+cd "$(dirname "$0")"

-set -e  # Exit on error
-
-# Detect platform
-if [[ "$OSTYPE" == "msys" ]] || [[ "$OSTYPE" == "cygwin" ]] || [[ -n "$MSYSTEM" ]]; then
-    IS_WINDOWS=1
-    echo "Detected Windows/MSYS2 environment"
-else
-    IS_WINDOWS=0
-    echo "Detected Linux environment"
-fi
-
-# Parse arguments
+MODE=normal
 CLEAN=0
-FULL_REBUILD=0
-USE_ASAN=0
-USE_HARDENED=0
-JOBS="-j4"
-MAKE_ARGS=""
-HARDEN_FLAGS=""
+FULL=0
+BUILD_GUI=1
+JOBS=4
+MAKE_ARGS=()
+MAKE_SETTINGS=()
+STATE=.utun-build-state

 while [[ $# -gt 0 ]]; do
-    case $1 in
+    case "$1" in
        -h|--help)
-            echo "Usage: ./build.sh [options]"
-            echo "Options:"
-            echo "  -h, --help      Show this help"
-            echo "  --clean         Clean before build"
-            echo "  --full          Full rebuild (autoreconf + configure + make)"
-            echo "  --asan          Build with AddressSanitizer"
-            echo "  --hardened      Build with compiler security hardening flags"
-            echo "  -j[N]           Build with N parallel jobs (default: 4)"
-            exit 0
-            ;;
-        --clean)
-            CLEAN=1
-            shift
-            ;;
-        --full)
-            FULL_REBUILD=1
-            shift
-            ;;
-        --asan)
-            USE_ASAN=1
-            shift
-            ;;
-        --hardened)
-            USE_HARDENED=1
-            shift
-            ;;    
-        -j*)
-            JOBS="$1"
-            shift
-            ;;
+            echo "Usage: ./build.sh [--clean] [--full] [--asan|--hardened] [--no-gui] [-jN] [make arguments]"
+            echo "  --clean     Rebuild objects without forcing configure"
+            echo "  --full      Regenerate, configure and rebuild everything"
+            echo "  --asan      AddressSanitizer; skip tests"
+            echo "  --hardened  Enable compiler security hardening"
+            echo "  --no-gui    Skip the separately configured ChatGUI"
+            echo "  -jN, -j N   Parallel jobs (default: 4)"
+            echo "  CC/CFLAGS/CPPFLAGS/LDFLAGS/LIBS assignments are passed to configure"
+            exit 0 ;;
+        --clean) CLEAN=1 ;;
+        --full) FULL=1 ;;
+        --no-gui) BUILD_GUI=0 ;;
+        --asan|--hardened)
+            selected_mode=${1#--}
+            if [[ "$MODE" != normal && "$MODE" != "$selected_mode" ]]; then
+                echo "ERROR: --asan and --hardened cannot be combined" >&2; exit 1
+            fi
+            MODE=$selected_mode ;;
+        -j)
+            [[ $# -gt 1 ]] || { echo "ERROR: -j requires a positive job count" >&2; exit 1; }
+            shift; JOBS=$1 ;;
+        -j*) JOBS=${1#-j} ;;
+        CC=*|CFLAGS=*|CPPFLAGS=*|LDFLAGS=*|LIBS=*) export "$1" ;;
+        CC+=*|CFLAGS+=*|CPPFLAGS+=*|LDFLAGS+=*|LIBS+=*)
+            echo "ERROR: use NAME=value for configure flags; append assignments are not supported" >&2; exit 1 ;;
        *)
-            MAKE_ARGS="$MAKE_ARGS $1"
-            shift
-            ;;
+            MAKE_ARGS+=("$1")
+            [[ "$1" != *=* ]] || MAKE_SETTINGS+=("$1") ;;
    esac
+    shift
 done
+[[ "$JOBS" =~ ^[1-9][0-9]*$ ]] || { echo "ERROR: invalid job count: $JOBS" >&2; exit 1; }

-# Check required tools
-if ! command -v gcc &> /dev/null; then
-    echo "Error: gcc not found."
-    if [ "$IS_WINDOWS" -eq 1 ]; then
-        echo "Please install: pacman -S mingw-w64-ucrt-x86_64-toolchain"
-    else
-        echo "Please install build-essential or gcc"
-    fi
-    exit 1
+for tool in make sha256sum; do
+    command -v "$tool" >/dev/null || { echo "ERROR: required tool not found: $tool" >&2; exit 1; }
+done
+read -r -a COMPILER <<< "${CC:-gcc}"
+command -v "${COMPILER[0]}" >/dev/null || { echo "ERROR: compiler not found: ${CC:-gcc}" >&2; exit 1; }
+COMPILER_ID=$("${COMPILER[@]}" --version) || { echo "ERROR: cannot identify compiler: ${CC:-gcc}" >&2; exit 1; }
+
+# Хеши учитывают содержимое и имена файлов, включая добавление/удаление макросов.
+hash_files() {
+    local result
+    result=$(sha256sum "$@" | sha256sum)
+    printf '%s\n' "${result%% *}"
+}
+
+BUILD_DIRS=(lib lib/libopus src tests)
+AUTOTOOLS_INPUTS=(configure.ac Makefile.am lib/Makefile.am lib/libopus/Makefile.am src/Makefile.am tests/Makefile.am)
+AUTOTOOLS_OUTPUTS=(configure aclocal.m4 config.h.in Makefile.in lib/Makefile.in lib/libopus/Makefile.in src/Makefile.in tests/Makefile.in)
+CONFIG_OUTPUTS=(config.status config.h Makefile lib/Makefile lib/libopus/Makefile src/Makefile tests/Makefile)
+if [[ -d m4 ]]; then
+    while IFS= read -r -d '' macro; do AUTOTOOLS_INPUTS+=("$macro"); done < <(find m4 -type f -name '*.m4' -print0 | sort -z)
 fi
-
-# Clean if requested
-if [ "$CLEAN" -eq 1 ]; then
-    echo "Cleaning build..."
-    make clean 2>/dev/null || true
+GENERATION_INPUT=$(hash_files "${AUTOTOOLS_INPUTS[@]}")
+GENERATION_OUTPUT=missing
+CONFIG_OUTPUT=missing
+missing_generation=0
+missing_configuration=0
+for file in "${AUTOTOOLS_OUTPUTS[@]}"; do [[ -f "$file" ]] || missing_generation=1; done
+for file in "${CONFIG_OUTPUTS[@]}"; do [[ -f "$file" ]] || missing_configuration=1; done
+if [[ "$missing_generation" = 0 ]]; then GENERATION_OUTPUT=$(hash_files "${AUTOTOOLS_OUTPUTS[@]}"); fi
+if [[ "$missing_configuration" = 0 ]]; then CONFIG_OUTPUT=$(hash_files "${CONFIG_OUTPUTS[@]}"); fi
+
+FFMPEG_PACKAGES=(libavformat libavcodec libavutil libswscale libswresample)
+FFMPEG_OPTION=--without-ffmpeg
+FFMPEG_ID=unavailable
+FFMPEG_CFLAGS=""
+FFMPEG_LDFLAGS=""
+if command -v pkg-config >/dev/null && pkg-config --exists "${FFMPEG_PACKAGES[@]}"; then
+    FFMPEG_OPTION=--with-ffmpeg
+    FFMPEG_ID=$(pkg-config --modversion "${FFMPEG_PACKAGES[@]}")
+    FFMPEG_CFLAGS=$(pkg-config --cflags "${FFMPEG_PACKAGES[@]}")
+    FFMPEG_LDFLAGS=$(pkg-config --libs-only-L "${FFMPEG_PACKAGES[@]}")
 fi
-
-# Full rebuild: regenerate build system
-if [ "$FULL_REBUILD" -eq 1 ]; then
-    echo ""
-    echo "======================================"
-    echo "FULL REBUILD: autoreconf"
-    echo "======================================"
-    echo ""
-
-    # Check for autotools
-    if ! command -v autoreconf &> /dev/null; then
-        echo "Error: autoreconf not found."
-        if [ "$IS_WINDOWS" -eq 1 ]; then
-            echo "Install autotools: pacman -S mingw-w64-ucrt-x86_64-autotools"
-        else
-            echo "Install autotools: apt-get install autoconf automake libtool"
-        fi
-        exit 1
-    fi
-
-    # Clean generated files
-    echo "Cleaning generated files..."
-    make distclean 2>/dev/null || true
-    rm -rf build/
-
-    # Regenerate build system (root Makefile is hand-written, not generated)
-    echo ""
-    echo "Running autoreconf -fi..."
-    autoreconf -fi 2>&1 | tee autoreconf.log
-
-    echo ""
-    echo "======================================"
-    echo "Build system regenerated successfully"
-    echo "======================================"
-    echo ""
-else
-    # Quick/incremental build: generate configure if needed
-    if [ ! -f ./configure ]; then
-        echo "Configure script not found. Generating..."
-        if ! command -v autoreconf &> /dev/null; then
-            echo "Error: autoreconf not found."
-            if [ "$IS_WINDOWS" -eq 1 ]; then
-                echo "Install autotools: pacman -S mingw-w64-ucrt-x86_64-autotools"
-            else
-                echo "Install autotools: apt-get install autoconf automake libtool"
-            fi
-            exit 1
-        fi
-        autoreconf -fiv
+request_sum=$({
+    printf '%s\0' "$MODE" "${OSTYPE:-}" "${MSYSTEM:-}" "${MSYSTEM_PREFIX:-}" "${CC:-gcc}" "$COMPILER_ID"
+    printf '%s\0' "${CFLAGS+x}" "${CFLAGS-}" "${CPPFLAGS+x}" "${CPPFLAGS-}" "${LDFLAGS+x}" "${LDFLAGS-}"
+    printf '%s\0' "${LIBS+x}" "${LIBS-}" "${MAKEFLAGS-}" "${DEBUG_FLAGS+x}" "${DEBUG_FLAGS-}"
+    printf '%s\0' "$FFMPEG_OPTION" "$FFMPEG_ID" "$FFMPEG_CFLAGS" "$FFMPEG_LDFLAGS"
+    printf '%s\0' "${MAKE_SETTINGS[@]}"
+    sha256sum build.sh
+} | sha256sum)
+CONFIG_REQUEST=${request_sum%% *}
+
+OLD_GENERATION_INPUT=""; OLD_GENERATION_OUTPUT=""; OLD_CONFIG_REQUEST=""; OLD_CONFIG_OUTPUT=""
+if [[ -f "$STATE" ]]; then
+    if ! {
+        read -r OLD_GENERATION_INPUT; read -r OLD_GENERATION_OUTPUT
+        read -r OLD_CONFIG_REQUEST; read -r OLD_CONFIG_OUTPUT
+    } < "$STATE"; then
+        echo "WARN: incomplete build state; adopting the build with a clean rebuild"
+        OLD_GENERATION_INPUT=""; OLD_GENERATION_OUTPUT=""; OLD_CONFIG_REQUEST=""; OLD_CONFIG_OUTPUT=""
    fi
 fi

-# Auto-detect FFmpeg (optional video transcoding). If libav libraries are
-# available, build with --with-ffmpeg; configure gracefully skips it otherwise.
-FFMPEG_OPT=""
-if command -v pkg-config >/dev/null 2>&1 && \
-   pkg-config --exists libavformat libavcodec libavutil libswscale libswresample 2>/dev/null; then
-    FFMPEG_OPT="--with-ffmpeg"
-    echo "FFmpeg detected — building with video transcoding"
-else
-    echo "FFmpeg not found — building without video transcoding"
+REGENERATE=0
+RECONFIGURE=0
+if [[ "$FULL" = 1 || "$GENERATION_INPUT" != "$OLD_GENERATION_INPUT" || "$GENERATION_OUTPUT" != "$OLD_GENERATION_OUTPUT" ]]; then
+    echo "INFO: regenerating Autotools: full=$FULL"
+    if [[ "$GENERATION_INPUT" != "$OLD_GENERATION_INPUT" ]]; then echo "INFO: Autotools descriptions changed or unrecorded"; fi
+    if [[ "$GENERATION_OUTPUT" != "$OLD_GENERATION_OUTPUT" ]]; then echo "INFO: generated Autotools files changed or missing"; fi
+    command -v autoreconf >/dev/null || { echo "ERROR: autoreconf is required to regenerate the build" >&2; exit 1; }
+    mkdir -p m4
+    autoreconf -fi 2>&1 | tee autoreconf.log || { echo "ERROR: autoreconf failed; see autoreconf.log" >&2; exit 1; }
+    REGENERATE=1
 fi
-
-# Generate Makefiles if needed
-if [ ! -f Makefile ]; then
-    echo ""
-    echo "Running ./configure..."
-    if [ "$USE_ASAN" -eq 1 ]; then
-        ./configure CFLAGS="-g -Og -fsanitize=address -fno-omit-frame-pointer -fno-pie" LDFLAGS="-no-pie" $FFMPEG_OPT
-    elif [ "$USE_HARDENED" -eq 1 ]; then
-        ./configure --enable-hardening $FFMPEG_OPT
-    else
-        ./configure $FFMPEG_OPT
+if [[ "$REGENERATE" = 1 || "$CONFIG_REQUEST" != "$OLD_CONFIG_REQUEST" || "$CONFIG_OUTPUT" != "$OLD_CONFIG_OUTPUT" ]]; then
+    echo "INFO: configuring: mode=$MODE regenerated=$REGENERATE"
+    if [[ "$CONFIG_REQUEST" != "$OLD_CONFIG_REQUEST" ]]; then echo "INFO: compiler, flags or optional dependencies changed or unrecorded"; fi
+    if [[ "$CONFIG_OUTPUT" != "$OLD_CONFIG_OUTPUT" ]]; then echo "INFO: configuration files changed or missing"; fi
+    CONFIG_ARGS=("$FFMPEG_OPTION" --disable-hardening)
+    if [[ "$MODE" = asan ]]; then
+        export CFLAGS="${CFLAGS-} -g -Og -fsanitize=address -fno-omit-frame-pointer -fno-pie"
+        export LDFLAGS="${LDFLAGS-} -fsanitize=address -no-pie"
+    elif [[ "$MODE" = hardened ]]; then
+        CONFIG_ARGS+=(--enable-hardening)
    fi
+    if [[ "$FFMPEG_OPTION" = --with-ffmpeg ]]; then
+        export CPPFLAGS="${CPPFLAGS-} $FFMPEG_CFLAGS"
+        export LDFLAGS="${LDFLAGS-} $FFMPEG_LDFLAGS"
+    fi
+    ./configure "${CONFIG_ARGS[@]}" 2>&1 | tee configure.log || { echo "ERROR: configure failed; see configure.log" >&2; exit 1; }
+    RECONFIGURE=1
 fi

-# Build (all .o files go to build/ directory, binary copied to project root)
-echo ""
-echo "Compiling with $JOBS..."
-BUILD_SUCCESS=0
-if [ "$USE_ASAN" -eq 1 ]; then
-    echo "(AddressSanitizer enabled — lib/ and src/ only, skipping tests)"
-    AF="-fsanitize=address -fno-omit-frame-pointer -g -Og"
-    AL="-fsanitize=address"
-    (cd lib && make clean $JOBS $MAKE_ARGS 2>&1 && make "CFLAGS+=$AF" "LDFLAGS+=$AL" $JOBS $MAKE_ARGS 2>&1) || { echo "lib build failed"; exit 1; }
-    # libopus собирается без ASAN (собственный CFLAGS в Makefile, .a несовместим с PIE)
-    (cd lib/libopus && make clean $JOBS $MAKE_ARGS 2>&1 && make $JOBS $MAKE_ARGS 2>&1) || { echo "libopus build failed"; exit 1; }
-    (cd src && make clean $JOBS $MAKE_ARGS 2>&1 && make "CFLAGS+=$AF" "LDFLAGS+=$AL" $JOBS $MAKE_ARGS 2>&1) || { echo "src build failed"; exit 1; }
-    BUILD_SUCCESS=1
-elif [ "$USE_HARDENED" -eq 1 ]; then
-    echo "(Hardening flags enabled)"
-    HF="-D_FORTIFY_SOURCE=2 -fstack-protector-strong -fstack-clash-protection -Wformat=2 -Wformat-overflow=2 -fPIE"
-    HL="-Wl,-z,relro -Wl,-z,now -pie"
-    (cd lib && make clean $JOBS $MAKE_ARGS 2>&1 && make "CFLAGS+=$HF" "LDFLAGS+=$HL" $JOBS $MAKE_ARGS 2>&1) || { echo "lib build failed"; exit 1; }
-    (cd src && make clean $JOBS $MAKE_ARGS 2>&1 && make "CFLAGS+=$HF" "LDFLAGS+=$HL" $JOBS $MAKE_ARGS 2>&1) || { echo "src build failed"; exit 1; }
-    (cd tests && make clean $JOBS $MAKE_ARGS 2>&1 && make "CFLAGS+=$HF" "LDFLAGS+=$HL" $JOBS $MAKE_ARGS 2>&1) || { echo "tests build failed"; exit 1; }
-    BUILD_SUCCESS=1
+# Проверяем только зависимости объектов, перечисленных Automake; посторонние сборки не затрагиваем.
+MISSING_DEPS=0
+for directory in "${BUILD_DIRS[@]}"; do
+    while read -r keyword depfile marker; do
+        [[ "$keyword" = include && "$marker" = '# am--include-marker' && "$depfile" = *.Po ]] || continue
+        depfile=${depfile//\$\(DEPDIR\)/.deps}
+        object=${depfile/.deps\//}
+        object=${object%.Po}
+        [[ -f "$directory/$object.o" || -f "$directory/$object.obj" ]] || continue
+        dependency_line=""
+        if [[ -s "$directory/$depfile" ]]; then IFS= read -r dependency_line < "$directory/$depfile" || true; fi
+        if [[ "$dependency_line" != *:* ]]; then
+            echo "WARN: missing or empty dependencies for $directory/$object: $directory/$depfile"
+            MISSING_DEPS=1
+            break
+        fi
+    done < "$directory/Makefile"
+done
+if [[ "$RECONFIGURE" = 1 || "$CLEAN" = 1 || "$MISSING_DEPS" = 1 ]]; then
+    echo "INFO: cleaning objects: reconfigured=$RECONFIGURE requested=$CLEAN missing_dependencies=$MISSING_DEPS"
+    make clean 2>&1 | tee build.log || { echo "ERROR: clean failed; see build.log" >&2; exit 1; }
 else
-    make $JOBS $MAKE_ARGS 2>&1 | tee build.log
-    if [ ${PIPESTATUS[0]} -eq 0 ]; then
-        BUILD_SUCCESS=1
-    fi
+    echo "INFO: configuration unchanged; incremental build (mode=$MODE)"
+    : > build.log
 fi

-if [ $BUILD_SUCCESS -eq 1 ]; then
-    echo ""
-    echo "Build completed successfully!"
-    echo "Binary: utun"
-
-    # Rebuild chatgui (CMake project) if transport sources changed
-    if [ -f tools/chatgui/build/CMakeCache.txt ] && command -v cmake &> /dev/null; then
-        echo ""
-        echo "======================================"
-        echo "Rebuilding chatgui (CMake)"
-        echo "======================================"
-        (
-            if [ "${MSYSTEM:-}" = UCRT64 ]; then
-                cd tools/chatgui && bash build.sh
-            else
-                cd tools/chatgui/build && cmake --build . -j4 2>&1
-            fi
-        ) || echo "WARNING: chatgui build failed"
+echo "INFO: compiling: mode=$MODE jobs=$JOBS"
+if [[ "$MODE" = asan ]]; then
+    echo "INFO: AddressSanitizer: building lib, Opus and src; skipping tests"
+    MAKE_ARGS+=("SUBDIRS=lib lib/libopus src")
+fi
+make "-j$JOBS" "${MAKE_ARGS[@]}" 2>&1 | tee -a build.log || { echo "ERROR: build failed; see build.log" >&2; exit 1; }
+
+# Состояние обновляется после успешной сборки ядра; ошибка GUI не инвалидирует готовые объекты.
+GENERATION_OUTPUT=$(hash_files "${AUTOTOOLS_OUTPUTS[@]}")
+CONFIG_OUTPUT=$(hash_files "${CONFIG_OUTPUTS[@]}")
+state_tmp="$STATE.tmp.$$"
+trap 'rm -f "$state_tmp"' EXIT
+printf '%s\n' "$GENERATION_INPUT" "$GENERATION_OUTPUT" "$CONFIG_REQUEST" "$CONFIG_OUTPUT" > "$state_tmp"
+mv -f "$state_tmp" "$STATE"
+
+if [[ "$BUILD_GUI" = 1 && -f tools/chatgui/build/CMakeCache.txt ]]; then
+    command -v cmake >/dev/null || { echo "ERROR: ChatGUI exists but cmake is not available" >&2; exit 1; }
+    echo "INFO: building ChatGUI with its CMake configuration: jobs=$JOBS"
+    if [[ "${MSYSTEM:-}" = UCRT64 ]]; then
+        (cd tools/chatgui && bash build.sh "-j$JOBS") || { echo "ERROR: ChatGUI build failed" >&2; exit 1; }
+    else
+        cmake --build tools/chatgui/build --parallel "$JOBS" || { echo "ERROR: ChatGUI build failed" >&2; exit 1; }
    fi
-else
-    echo ""
-    echo "ERROR: Build failed!"
-    echo "Check build.log for details"
-    exit 1
 fi
+echo "Build completed successfully!"
+echo "Binary: src/utun"
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@ -1,6 +1,6 @@
 # Tests Makefile.am for utun - all tests with new ll_queue library

-EXTRA_DIST = fixtures/reality_openssl_hello.hex data/silero_speech.pcm data/silero_speech.txt
+EXTRA_DIST = fixtures/reality_openssl_hello.hex data/silero_speech.pcm data/silero_speech.txt test_build_script.py

 # Порядок по замерам Linux: быстрые проверки раньше длительных; состав зависит от прежних configure-условий.

@ -715,23 +715,31 @@ test_media_delivery_chat_LDADD = $(LIBUTUN) $(CRYPTO_LIBS) $(COMMON_LIBS)
 all-local: copy-test-configs

 copy-test-configs: $(check_PROGRAMS)
-	@for conf in $(srcdir)/test_*.conf $(srcdir)/test_*.json; do \
-		if test -f "$$conf"; then \
-			cp -f "$$conf" "$(top_builddir)/tests/" 2>/dev/null || true; \
-		fi; \
-	done 2>/dev/null || true
+	@if test "$(abs_srcdir)" != "$(abs_builddir)"; then \
+		for conf in $(srcdir)/test_*.conf $(srcdir)/test_*.json; do \
+			if test -f "$$conf"; then \
+				cp -f "$$conf" "$(abs_builddir)/" || { echo "ERROR: cannot copy $$conf" >&2; exit 1; }; \
+			fi; \
+		done; \
+	fi

 # Clean
 clean-local:
 	-rm -f $(check_PROGRAMS)
-	-rm -f $(top_builddir)/tests/test_*.conf $(top_builddir)/tests/test_*.json 2>/dev/null || true
+	@if test "$(abs_srcdir)" != "$(abs_builddir)"; then rm -f $(abs_builddir)/test_*.conf $(abs_builddir)/test_*.json; fi
 	-rm -rf $(top_builddir)/tests/logs 2>/dev/null || true

 # Test logs directory
 TEST_LOG_DIR = $(top_builddir)/tests/logs

 # Custom check target that runs tests and saves logs to files
-check-local: $(check_PROGRAMS)
+.PHONY: check-build-script
+check-build-script:
+	@if command -v python3 >/dev/null 2>&1; then \
+		python3 "$(srcdir)/test_build_script.py" "$(top_srcdir)/build.sh"; \
+	else echo "[SKIP] build.sh regression checks require python3"; fi
+
+check-local: $(check_PROGRAMS) check-build-script
 	@rm -f $(TEST_LOG_DIR)/*.log 2>/dev/null || true; $(MKDIR_P) $(TEST_LOG_DIR); \
 	G='\033[0;32m'; R='\033[0;31m'; Y='\033[0;33m'; N='\033[0m'; \
 	passed=0; \