title: Error while building Shadowsocks android gituhub code
body: <p>I am trying to use <a href="https://github.com/shadowsocks/shadowsocks-android" rel="nofollow noreferrer">https://github.com/shadowsocks/shadowsocks-android</a> </p>
  
  <p>To run it, I am following all instructions</p>
  
  <p>Have installed :</p>
  
  <pre><code>JDK 1.8
  Go 1.11+
  Android SDK
  Android NDK r16+ 
  </code></pre>
  
  <p>And to set path, I am doing like this in my system's .profile file:</p>
  
  <pre><code>JAVA_HOME=/usr/lib/jvm/jdk1.8.0_181
  PATH=$PATH:$JAVA_HOME/bin
  export JAVA_HOME
  export JRE_HOME
  export PATH
  
  export GOROOT=/home/optimumanddev2/Downloads/go
  export GOPATH=$HOME/go
  export PATH=$PATH:$GOROOT/bin:$GOPATH/bin
  
  export ANDROID_HOME=/home/optimumanddev2/Android/Sdk
  export PATH=${PATH}:~/Android/Sdk/tools:~/Android/Sdk/platform-tools
  export ANDROID_NDK_HOME=$ANDROID_HOME/ndk-bundle
  </code></pre>
  
  <p>After that, I have downloaded latest code from github and trying to build it, but it gives these errors:</p>
  
  <pre><code>External Native Build Issues=======================&gt;
  Build command failed.
  Error while executing process /home/optimumanddev2/Android/Sdk/ndk-bundle/ndk-build with arguments {NDK_PROJECT_PATH=null APP_BUILD_SCRIPT=/home/optimumanddev2/Pictures/flag/shadowsocks-android-master/core/src/main/jni/Android.mk NDK_APPLICATION_MK=/home/optimumanddev2/Pictures/flag/shadowsocks-android-master/core/src/main/jni/Application.mk APP_ABI=armeabi-v7a NDK_ALL_ABIS=armeabi-v7a NDK_DEBUG=0 APP_PLATFORM=android-21 NDK_OUT=/home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/obj NDK_LIBS_OUT=/home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/lib APP_SHORT_COMMANDS=false LOCAL_SHORT_COMMANDS=false -B -n}
  rm -f /home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/lib/armeabi-v7a/*
  rm -f /home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/lib/armeabi-v7a/gdbserver
  rm -f /home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/lib/armeabi-v7a/gdb.setup
  mkdir -p /home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/obj/local/armeabi-v7a/objs/jni-helper
  echo [armeabi-v7a] "Compile++ thumb": "jni-helper &lt;= jni-helper.cpp"
  /home/optimumanddev2/Android/Sdk/ndk-bundle/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -MMD -MP -MF 
  /home/optimumanddev2/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ar crsD  /home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/obj/local/armeabi-v7a/libcpufeatures.a /home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/obj/local/armeabi-v7a/objs/cpufeatures/cpu-features.o
  make: *** No rule to make target `/home/optimumanddev2/Pictures/flag/shadowsocks-android-master/core/src/main/jni/libancillary/fd_recv.c', needed by `/home/optimumanddev2/Pictures/flag/shadowsocks-android-master/plugin/build/intermediates/ndkBuild/release/obj/local/armeabi-v7a/objs/ancillary/libancillary/fd_recv.o'.  Stop.
  Build command failed.
  </code></pre>
  
  <p>Please help, I am thinking PATH set process could be wrong. </p>
  
  <p>Here is my Application.mk file:</p>
  
  <pre><code>APP_ABI                 := armeabi-v7a arm64-v8a x86
  APP_PLATFORM            := android-21
  APP_STL                 := c++_static
  NDK_TOOLCHAIN_VERSION   := clang
  </code></pre>
  
  <p>Here is Android.mk file:</p>
  
  <pre><code>LOCAL_PATH := $(call my-dir)
  ROOT_PATH := $(LOCAL_PATH)
  
  BUILD_SHARED_EXECUTABLE := $(LOCAL_PATH)/build-shared-executable.mk
  
  ########################################################
  ## libsodium
  ########################################################
  
  include $(CLEAR_VARS)
  
  SODIUM_SOURCE := \
      crypto_aead/chacha20poly1305/sodium/aead_chacha20poly1305.c \
      crypto_aead/xchacha20poly1305/sodium/aead_xchacha20poly1305.c \
      crypto_core/curve25519/ref10/curve25519_ref10.c \
      crypto_core/hchacha20/core_hchacha20.c \
      crypto_core/salsa/ref/core_salsa_ref.c \
      crypto_generichash/blake2b/ref/blake2b-compress-ref.c \
      crypto_generichash/blake2b/ref/blake2b-ref.c \
      crypto_generichash/blake2b/ref/generichash_blake2b.c \
      crypto_onetimeauth/poly1305/onetimeauth_poly1305.c \
      crypto_onetimeauth/poly1305/donna/poly1305_donna.c \
      crypto_pwhash/crypto_pwhash.c \
      crypto_pwhash/argon2/argon2-core.c \
      crypto_pwhash/argon2/argon2.c \
      crypto_pwhash/argon2/argon2-encoding.c \
      crypto_pwhash/argon2/argon2-fill-block-ref.c \
      crypto_pwhash/argon2/blake2b-long.c \
      crypto_pwhash/argon2/pwhash_argon2i.c \
      crypto_scalarmult/curve25519/scalarmult_curve25519.c \
      crypto_scalarmult/curve25519/ref10/x25519_ref10.c \
      crypto_stream/chacha20/stream_chacha20.c \
      crypto_stream/chacha20/ref/chacha20_ref.c \
      crypto_stream/salsa20/stream_salsa20.c \
      crypto_stream/salsa20/ref/salsa20_ref.c \
      crypto_verify/sodium/verify.c \
      randombytes/randombytes.c \
      randombytes/sysrandom/randombytes_sysrandom.c \
      sodium/core.c \
      sodium/runtime.c \
      sodium/utils.c \
      sodium/version.c
  
  LOCAL_MODULE := sodium
  LOCAL_CFLAGS += -I$(LOCAL_PATH)/libsodium/src/libsodium/include \
                  -I$(LOCAL_PATH)/include \
                  -I$(LOCAL_PATH)/include/sodium \
                  -I$(LOCAL_PATH)/libsodium/src/libsodium/include/sodium \
                  -DPACKAGE_NAME=\"libsodium\" -DPACKAGE_TARNAME=\"libsodium\" \
                  -DPACKAGE_VERSION=\"1.0.15\" -DPACKAGE_STRING=\"libsodium-1.0.15\" \
                  -DPACKAGE_BUGREPORT=\"https://github.com/jedisct1/libsodium/issues\" \
                  -DPACKAGE_URL=\"https://github.com/jedisct1/libsodium\" \
                  -DPACKAGE=\"libsodium\" -DVERSION=\"1.0.15\" \
                  -DHAVE_PTHREAD=1                  \
                  -DSTDC_HEADERS=1                  \
                  -DHAVE_SYS_TYPES_H=1              \
                  -DHAVE_SYS_STAT_H=1               \
                  -DHAVE_STDLIB_H=1                 \
                  -DHAVE_STRING_H=1                 \
                  -DHAVE_MEMORY_H=1                 \
                  -DHAVE_STRINGS_H=1                \
                  -DHAVE_INTTYPES_H=1               \
                  -DHAVE_STDINT_H=1                 \
                  -DHAVE_UNISTD_H=1                 \
                  -D__EXTENSIONS__=1                \
                  -D_ALL_SOURCE=1                   \
                  -D_GNU_SOURCE=1                   \
                  -D_POSIX_PTHREAD_SEMANTICS=1      \
                  -D_TANDEM_SOURCE=1                \
                  -DHAVE_DLFCN_H=1                  \
                  -DLT_OBJDIR=\".libs/\"            \
                  -DHAVE_SYS_MMAN_H=1               \
                  -DNATIVE_LITTLE_ENDIAN=1          \
                  -DASM_HIDE_SYMBOL=.hidden         \
                  -DHAVE_WEAK_SYMBOLS=1             \
                  -DHAVE_ATOMIC_OPS=1               \
                  -DHAVE_ARC4RANDOM=1               \
                  -DHAVE_ARC4RANDOM_BUF=1           \
                  -DHAVE_MMAP=1                     \
                  -DHAVE_MLOCK=1                    \
                  -DHAVE_MADVISE=1                  \
                  -DHAVE_MPROTECT=1                 \
                  -DHAVE_NANOSLEEP=1                \
                  -DHAVE_POSIX_MEMALIGN=1           \
                  -DHAVE_GETPID=1                   \
                  -DCONFIGURED=1
  
  LOCAL_SRC_FILES := $(addprefix libsodium/src/libsodium/,$(SODIUM_SOURCE))
  
  include $(BUILD_STATIC_LIBRARY)
  
  ########################################################
  ## libevent
  ########################################################
  
  include $(CLEAR_VARS)
  
  LIBEVENT_SOURCES := \
      buffer.c bufferevent.c event.c \
      bufferevent_sock.c bufferevent_ratelim.c \
      evthread.c log.c evutil.c evutil_time.c evmap.c epoll.c poll.c signal.c select.c
  
  LOCAL_MODULE := event
  LOCAL_SRC_FILES := $(addprefix libevent/, $(LIBEVENT_SOURCES))
  LOCAL_CFLAGS := -I$(LOCAL_PATH)/libevent \
      -I$(LOCAL_PATH)/libevent/include \
  
  include $(BUILD_STATIC_LIBRARY)
  
  ########################################################
  ## libancillary
  ########################################################
  
  include $(CLEAR_VARS)
  
  ANCILLARY_SOURCE := fd_recv.c fd_send.c
  
  LOCAL_MODULE := libancillary
  LOCAL_CFLAGS += -I$(LOCAL_PATH)/libancillary
  
  LOCAL_SRC_FILES := $(addprefix libancillary/, $(ANCILLARY_SOURCE))
  
  include $(BUILD_STATIC_LIBRARY)
  
  ########################################################
  ## libbloom
  ########################################################
  
  include $(CLEAR_VARS)
  
  BLOOM_SOURCE := bloom.c murmur2/MurmurHash2.c
  
  LOCAL_MODULE := libbloom
  LOCAL_CFLAGS += -I$(LOCAL_PATH)/shadowsocks-libev/libbloom \
                  -I$(LOCAL_PATH)/shadowsocks-libev/libbloom/murmur2
  
  LOCAL_SRC_FILES := $(addprefix shadowsocks-libev/libbloom/, $(BLOOM_SOURCE))
  
  include $(BUILD_STATIC_LIBRARY)
  
  ########################################################
  ## libipset
  ########################################################
  
  include $(CLEAR_VARS)
  
  bdd_src = bdd/assignments.c bdd/basics.c bdd/bdd-iterator.c bdd/expanded.c \
                    bdd/reachable.c bdd/read.c bdd/write.c
  map_src = map/allocation.c map/inspection.c map/ipv4_map.c map/ipv6_map.c \
                    map/storage.c
  set_src = set/allocation.c set/inspection.c set/ipv4_set.c set/ipv6_set.c \
                    set/iterator.c set/storage.c
  
  IPSET_SOURCE := general.c $(bdd_src) $(map_src) $(set_src)
  
  LOCAL_MODULE := libipset
  LOCAL_CFLAGS += -I$(LOCAL_PATH)/shadowsocks-libev/libipset/include \
                  -I$(LOCAL_PATH)/shadowsocks-libev/libcork/include
  
  LOCAL_SRC_FILES := $(addprefix shadowsocks-libev/libipset/src/libipset/,$(IPSET_SOURCE))
  
  include $(BUILD_STATIC_LIBRARY)
  
  ########################################################
  ## libcork
  ########################################################
  
  include $(CLEAR_VARS)
  
  cli_src := cli/commands.c
  core_src := core/allocator.c core/error.c core/gc.c \
              core/hash.c core/ip-address.c core/mempool.c \
              core/timestamp.c core/u128.c
  ds_src := ds/array.c ds/bitset.c ds/buffer.c ds/dllist.c \
            ds/file-stream.c ds/hash-table.c ds/managed-buffer.c \
            ds/ring-buffer.c ds/slice.c
  posix_src := posix/directory-walker.c posix/env.c posix/exec.c \
               posix/files.c posix/process.c posix/subprocess.c
  pthreads_src := pthreads/thread.c
  
  CORK_SOURCE := $(cli_src) $(core_src) $(ds_src) $(posix_src) $(pthreads_src)
  
  LOCAL_MODULE := libcork
  LOCAL_CFLAGS += -I$(LOCAL_PATH)/shadowsocks-libev/libcork/include \
                  -DCORK_API=CORK_LOCAL
  
  LOCAL_SRC_FILES := $(addprefix shadowsocks-libev/libcork/src/libcork/,$(CORK_SOURCE))
  
  include $(BUILD_STATIC_LIBRARY)
  
  ########################################################
  ## libev
  ########################################################
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE := libev
  LOCAL_CFLAGS += -DNDEBUG -DHAVE_CONFIG_H \
                  -I$(LOCAL_PATH)/include/libev
  LOCAL_SRC_FILES := \
      libev/ev.c \
      libev/event.c
  
  include $(BUILD_STATIC_LIBRARY)
  
  ########################################################
  ## redsocks
  ########################################################
  
  include $(CLEAR_VARS)
  
  REDSOCKS_SOURCES := base.c http-connect.c \
      log.c md5.c socks5.c \
      base64.c http-auth.c http-relay.c main.c \
      parser.c redsocks.c socks4.c utils.c
  
  LOCAL_STATIC_LIBRARIES := libevent
  
  LOCAL_MODULE := redsocks
  LOCAL_SRC_FILES := $(addprefix redsocks/, $(REDSOCKS_SOURCES)) 
  LOCAL_CFLAGS := -std=gnu99 -DUSE_IPTABLES \
      -I$(LOCAL_PATH)/redsocks \
      -I$(LOCAL_PATH)/libevent/include \
      -I$(LOCAL_PATH)/libevent
  
  include $(BUILD_SHARED_EXECUTABLE)
  
  ########################################################
  ## shadowsocks-libev local
  ########################################################
  
  include $(CLEAR_VARS)
  
  SHADOWSOCKS_SOURCES := local.c \
      cache.c udprelay.c utils.c netutils.c json.c jconf.c \
      acl.c http.c tls.c rule.c \
      crypto.c aead.c stream.c base64.c \
      plugin.c ppbloom.c \
      android.c
  
  LOCAL_MODULE    := ss-local
  LOCAL_SRC_FILES := $(addprefix shadowsocks-libev/src/, $(SHADOWSOCKS_SOURCES))
  LOCAL_CFLAGS    := -Wall -fno-strict-aliasing -DMODULE_LOCAL \
                      -DUSE_CRYPTO_MBEDTLS -DHAVE_CONFIG_H \
                      -DCONNECT_IN_PROGRESS=EINPROGRESS \
                      -I$(LOCAL_PATH)/include/shadowsocks-libev \
                      -I$(LOCAL_PATH)/include \
                      -I$(LOCAL_PATH)/libancillary \
                      -I$(LOCAL_PATH)/mbedtls/include  \
                      -I$(LOCAL_PATH)/pcre \
                      -I$(LOCAL_PATH)/libsodium/src/libsodium/include \
                      -I$(LOCAL_PATH)/libsodium/src/libsodium/include/sodium \
                      -I$(LOCAL_PATH)/shadowsocks-libev/libcork/include \
                      -I$(LOCAL_PATH)/shadowsocks-libev/libipset/include \
                      -I$(LOCAL_PATH)/shadowsocks-libev/libbloom \
                      -I$(LOCAL_PATH)/libev
  
  LOCAL_STATIC_LIBRARIES := libev libmbedtls libipset libcork libbloom \
      libsodium libancillary libpcre
  
  LOCAL_LDLIBS := -llog
  
  include $(BUILD_SHARED_EXECUTABLE)
  
  ########################################################
  ## shadowsocks-libev tunnel
  ########################################################
  
  include $(CLEAR_VARS)
  
  SHADOWSOCKS_SOURCES := tunnel.c \
      cache.c udprelay.c utils.c netutils.c json.c jconf.c \
      crypto.c aead.c stream.c base64.c \
      plugin.c ppbloom.c \
      android.c
  
  LOCAL_MODULE    := ss-tunnel
  LOCAL_SRC_FILES := $(addprefix shadowsocks-libev/src/, $(SHADOWSOCKS_SOURCES))
  LOCAL_CFLAGS    := -Wall -fno-strict-aliasing -DMODULE_TUNNEL \
                      -DUSE_CRYPTO_MBEDTLS -DHAVE_CONFIG_H -DSSTUNNEL_JNI \
                      -DCONNECT_IN_PROGRESS=EINPROGRESS \
                      -I$(LOCAL_PATH)/libancillary \
                      -I$(LOCAL_PATH)/include \
                      -I$(LOCAL_PATH)/libsodium/src/libsodium/include \
                      -I$(LOCAL_PATH)/libsodium/src/libsodium/include/sodium \
                      -I$(LOCAL_PATH)/mbedtls/include \
                      -I$(LOCAL_PATH)/libev \
                      -I$(LOCAL_PATH)/shadowsocks-libev/libcork/include \
                      -I$(LOCAL_PATH)/shadowsocks-libev/libbloom \
                      -I$(LOCAL_PATH)/include/shadowsocks-libev
  
  LOCAL_STATIC_LIBRARIES := libev libmbedtls libsodium libcork libbloom libancillary
  
  LOCAL_LDLIBS := -llog
  
  include $(BUILD_SHARED_EXECUTABLE)
  
  ########################################################
  ## jni-helper
  ########################################################
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE:= jni-helper
  
  LOCAL_CFLAGS := -std=c++11
  
  LOCAL_C_INCLUDES:= $(LOCAL_PATH)/libancillary
  
  LOCAL_SRC_FILES:= jni-helper.cpp
  
  LOCAL_LDLIBS := -ldl -llog
  
  LOCAL_STATIC_LIBRARIES := cpufeatures libancillary
  
  include $(BUILD_SHARED_LIBRARY)
  
  ########################################################
  ## tun2socks
  ########################################################
  
  include $(CLEAR_VARS)
  
  LOCAL_CFLAGS := -std=gnu99
  LOCAL_CFLAGS += -DBADVPN_THREADWORK_USE_PTHREAD -DBADVPN_LINUX -DBADVPN_BREACTOR_BADVPN -D_GNU_SOURCE
  LOCAL_CFLAGS += -DBADVPN_USE_SIGNALFD -DBADVPN_USE_EPOLL
  LOCAL_CFLAGS += -DBADVPN_LITTLE_ENDIAN -DBADVPN_THREAD_SAFE
  LOCAL_CFLAGS += -DNDEBUG -DANDROID
  # LOCAL_CFLAGS += -DTUN2SOCKS_JNI
  
  LOCAL_STATIC_LIBRARIES := libancillary
  
  LOCAL_C_INCLUDES:= \
          $(LOCAL_PATH)/libancillary \
          $(LOCAL_PATH)/badvpn/lwip/src/include/ipv4 \
          $(LOCAL_PATH)/badvpn/lwip/src/include/ipv6 \
          $(LOCAL_PATH)/badvpn/lwip/src/include \
          $(LOCAL_PATH)/badvpn/lwip/custom \
          $(LOCAL_PATH)/badvpn/
  
  TUN2SOCKS_SOURCES := \
          base/BLog_syslog.c \
          system/BReactor_badvpn.c \
          system/BSignal.c \
          system/BConnection_common.c \
          system/BConnection_unix.c \
          system/BTime.c \
          system/BUnixSignal.c \
          system/BNetwork.c \
          flow/StreamRecvInterface.c \
          flow/PacketRecvInterface.c \
          flow/PacketPassInterface.c \
          flow/StreamPassInterface.c \
          flow/SinglePacketBuffer.c \
          flow/BufferWriter.c \
          flow/PacketBuffer.c \
          flow/PacketStreamSender.c \
          flow/PacketPassConnector.c \
          flow/PacketProtoFlow.c \
          flow/PacketPassFairQueue.c \
          flow/PacketProtoEncoder.c \
          flow/PacketProtoDecoder.c \
          socksclient/BSocksClient.c \
          tuntap/BTap.c \
          lwip/src/core/timers.c \
          lwip/src/core/udp.c \
          lwip/src/core/memp.c \
          lwip/src/core/init.c \
          lwip/src/core/pbuf.c \
          lwip/src/core/tcp.c \
          lwip/src/core/tcp_out.c \
          lwip/src/core/netif.c \
          lwip/src/core/def.c \
          lwip/src/core/mem.c \
          lwip/src/core/tcp_in.c \
          lwip/src/core/stats.c \
          lwip/src/core/inet_chksum.c \
          lwip/src/core/ipv4/icmp.c \
          lwip/src/core/ipv4/igmp.c \
          lwip/src/core/ipv4/ip4_addr.c \
          lwip/src/core/ipv4/ip_frag.c \
          lwip/src/core/ipv4/ip4.c \
          lwip/src/core/ipv4/autoip.c \
          lwip/src/core/ipv6/ethip6.c \
          lwip/src/core/ipv6/inet6.c \
          lwip/src/core/ipv6/ip6_addr.c \
          lwip/src/core/ipv6/mld6.c \
          lwip/src/core/ipv6/dhcp6.c \
          lwip/src/core/ipv6/icmp6.c \
          lwip/src/core/ipv6/ip6.c \
          lwip/src/core/ipv6/ip6_frag.c \
          lwip/src/core/ipv6/nd6.c \
          lwip/custom/sys.c \
          tun2socks/tun2socks.c \
          base/DebugObject.c \
          base/BLog.c \
          base/BPending.c \
          system/BDatagram_unix.c \
          flowextra/PacketPassInactivityMonitor.c \
          tun2socks/SocksUdpGwClient.c \
          udpgw_client/UdpGwClient.c
  
  LOCAL_MODULE := tun2socks
  
  LOCAL_LDLIBS := -ldl -llog
  
  LOCAL_SRC_FILES := $(addprefix badvpn/, $(TUN2SOCKS_SOURCES))
  
  include $(BUILD_SHARED_EXECUTABLE)
  
  ########################################################
  ## mbed TLS
  ########################################################
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE := mbedtls
  
  LOCAL_C_INCLUDES := $(LOCAL_PATH)/mbedtls/include
  
  MBEDTLS_SOURCES := $(wildcard $(LOCAL_PATH)/mbedtls/library/*.c)
  
  LOCAL_SRC_FILES := $(MBEDTLS_SOURCES:$(LOCAL_PATH)/%=%)
  
  include $(BUILD_STATIC_LIBRARY)
  
  ########################################################
  ## pcre
  ########################################################
  
  include $(CLEAR_VARS)
  
  LOCAL_MODULE := pcre
  
  LOCAL_CFLAGS += -DHAVE_CONFIG_H
  
  LOCAL_C_INCLUDES := $(LOCAL_PATH)/pcre/dist $(LOCAL_PATH)/pcre
  
  libpcre_src_files := \
      dist/pcre_byte_order.c \
      dist/pcre_compile.c \
      dist/pcre_config.c \
      dist/pcre_dfa_exec.c \
      dist/pcre_exec.c \
      dist/pcre_fullinfo.c \
      dist/pcre_get.c \
      dist/pcre_globals.c \
      dist/pcre_jit_compile.c \
      dist/pcre_maketables.c \
      dist/pcre_newline.c \
      dist/pcre_ord2utf8.c \
      dist/pcre_refcount.c \
      dist/pcre_string_utils.c \
      dist/pcre_study.c \
      dist/pcre_tables.c \
      dist/pcre_ucd.c \
      dist/pcre_valid_utf8.c \
      dist/pcre_version.c \
      dist/pcre_xclass.c
  
  LOCAL_SRC_FILES := $(addprefix pcre/, $(libpcre_src_files)) $(LOCAL_PATH)/patch/pcre/pcre_chartables.c
  
  include $(BUILD_STATIC_LIBRARY)
  
  # Import cpufeatures
  $(call import-module,android/cpufeatures)
  </code></pre>
  
  <p>In my project the files that are missing: 
  for eg.( core/.externalNativeBuild/ndkBuild/debug/armeabi-v7a) these folder are empty. I think it can be the problem.
  Because In my other NDK project, these folder have files and some code </p>