Termux: build with make, install to $PREFIX, no nl_langinfo on Android

- bootstrap_termux.sh installs pkg-config/binutils, builds with make,
  runs the tests and installs into Termux's $PREFIX/bin.
- Makefile drops -lpthread on Android (pthreads are in bionic libc).
- TUI assumes UTF-8 on Android: nl_langinfo needs API 26, Termux
  targets 24. All sources compile for aarch64-linux-android24 (NDK 27).

Makefile

@@ -6,6 +6,13 @@ PKG_CONFIG ?= pkg-config
 PREFIX ?= /usr/local
 DESTDIR ?=
 UNAME_S := $(shell uname -s 2>/dev/null)
+UNAME_O := $(shell uname -o 2>/dev/null)
+
+# Android (Termux): pthreads live in libc.
+PTHREAD_LIBS := -lpthread
+ifeq ($(UNAME_O),Android)
+PTHREAD_LIBS :=
+endif
 
 # macOS: Homebrew ncurses/curl are keg-only, so point pkg-config at them.
 # (macOS ships GNU make 3.81, whose $(shell) ignores exported variables.)
@@ -41,7 +48,7 @@ PKG_LIBS := $(CURL_LIBS) $(CURSES_LIBS)
 
 CPPFLAGS += -Iinclude -I$(SD_DIR)/include -I$(CJSON_DIR) -D_XOPEN_SOURCE_EXTENDED $(PKG_CFLAGS)
 LDFLAGS += -L$(SD_DIR)
-LDLIBS += -lsashidown -lm $(PKG_LIBS) -lpthread
+LDLIBS += -lsashidown -lm $(PKG_LIBS) $(PTHREAD_LIBS)
 
 CORE_SRC = \
 	$(CJSON_DIR)/cJSON.c \
@@ -91,7 +98,7 @@ TESTS = \
 	tests/test_undo \
 	tests/test_config
 
-TEST_LIBS = -lm $(CURL_LIBS) -lpthread
+TEST_LIBS = -lm $(CURL_LIBS) $(PTHREAD_LIBS)
 
 .PHONY: all clean check demo sashidown-lib cmake-gcc cmake-clang asan install uninstall
 

README.md

@@ -118,8 +118,13 @@ API Key：TUI 里输入并按 provider 保存到配置目录的 `credentials`（
 ### Termux
 
 ```bash
-pkg install clang make cmake libcurl ncurses-ui-libs
-cmake -B build -DCST_BUILD_TUI=ON && cmake --build build
+# 一键：装依赖、克隆、编译、安装到 $PREFIX/bin
+curl -fsSL https://git.whcself.xyz/WHC/CST-agent/raw/branch/main/scripts/bootstrap_termux.sh | bash
+
+# 或手动
+pkg install git clang make pkg-config binutils libcurl ncurses
+git clone https://git.whcself.xyz/WHC/CST-agent.git && cd CST-agent
+make && make install      # 装到 Termux 的 $PREFIX/bin，之后任意目录运行 cst-agent
 # 可选：旁路 Unix busybox
 # ./scripts/build_third_party_mingw.sh busybox-unix
 ```

scripts/bootstrap_termux.sh

@@ -1,13 +1,12 @@
 #!/data/data/com.termux/files/usr/bin/bash
-# One-shot: clone + build CST-Agent on Android Termux.
+# One-shot: clone, build and install CST-Agent on Android Termux.
 set -euo pipefail
 
 REPO_URL="${CST_AGENT_REPO:-https://git.whcself.xyz/WHC/CST-agent.git}"
 DIR="${1:-CST-agent}"
 
 echo "==> Termux packages"
-pkg install -y git clang make cmake libcurl ncurses-ui-libs 2>/dev/null \
-  || pkg install -y git clang make cmake curl ncurses
+pkg install -y git clang make pkg-config binutils libcurl ncurses
 
 if [[ ! -f "$DIR/Makefile" ]]; then
   echo "==> git clone $REPO_URL -> $DIR"
@@ -15,17 +14,13 @@ if [[ ! -f "$DIR/Makefile" ]]; then
 fi
 cd "$DIR"
 
-echo "==> cmake build (TUI)"
-cmake -B build -DCMAKE_C_COMPILER=clang -DCST_BUILD_TUI=ON
-cmake --build build -j"$(nproc 2>/dev/null || echo 4)"
-# Also keep Makefile binary path convenience
-cp -f build/cst-agent ./cst-agent 2>/dev/null || true
+echo "==> build"
+make -j"$(nproc 2>/dev/null || echo 4)"
+make check || echo "warning: some tests failed (see above)"
+
+echo "==> install to $PREFIX/bin"
+make install
 
 echo
-echo "OK: ./cst-agent  (or ./build/cst-agent)"
-echo "OpenAI-compatible:"
-echo "  export OPENAI_API_KEY=sk-..."
-echo "  export OPENAI_BASE_URL=https://api.openai.com/v1"
-echo "  export OPENAI_MODEL=gpt-4.1-mini"
-echo "  ./cst-agent --workspace \$HOME"
-echo "Docs: docs/env_openai.md"
+echo "OK: run 'cst-agent' inside a project directory."
+echo "The first start asks for the provider and its API key and saves them."

src/tui.c

@@ -369,7 +369,9 @@ static void theme_init(void) {
   const char *nc = getenv("NO_COLOR");
   g_nocolor = nc && nc[0];
   const char *asc = getenv("CST_ASCII");
-#ifndef _WIN32
+#if defined(__ANDROID__)
+  g_utf8 = 1; /* bionic is UTF-8 only; nl_langinfo needs API 26 */
+#elif !defined(_WIN32)
   const char *cs = nl_langinfo(CODESET);
   g_utf8 = cs && (strcasecmp(cs, "UTF-8") == 0 || strcasecmp(cs, "utf8") == 0);
 #endif