Hi,

I've read this topic which helped me a lot:
https://groups.google.com/forum/#!searchin/protobuf/arm%7Csort:date/protobuf/BbYvBRqQyUQ/XHrCGz2cBQAJ


Previously, I tried to build 3.5.0, then I meet the js_embed error. 
According to the suggestion given by the above topic, I tried some older 
version, like 3.1.0 and 3.0.2, but both failed at the same error:

*error: reference to 'map' is ambiguous*

Could anyone help?
Thanks.
Haisheng

*Some information:*
xxxx@xxxx-ubuntu:protobuf-3.0.2$ protoc --version
libprotoc 3.5.1
xxxx@xxxx-ubuntu:protobuf-3.0.2$ gcc -E -xc++ - -v
Using built-in specs.
COLLECT_GCC=gcc
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 
5.4.0-6ubuntu1~16.04.4' 
--with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs 
--enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr 
--program-suffix=-5 --enable-shared --enable-linker-build-id 
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix 
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu 
--enable-libstdcxx-debug --enable-libstdcxx-time=yes 
--with-default-libstdcxx-abi=new --enable-gnu-unique-object 
--disable-vtable-verify --enable-libmpx --enable-plugin --with-system-zlib 
--disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo 
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-amd64/jre --enable-java-home 
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-amd64 
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-amd64 
--with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar 
--enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 
--with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib 
--with-tune=generic --enable-checking=release --build=x86_64-linux-gnu 
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 
COLLECT_GCC_OPTIONS='-E' '-v' '-mtune=generic' '-march=x86-64'
 /usr/lib/gcc/x86_64-linux-gnu/5/cc1plus -E -quiet -v -imultiarch 
x86_64-linux-gnu -D_GNU_SOURCE - -mtune=generic -march=x86-64 
-fstack-protector-strong -Wformat -Wformat-security
ignoring duplicate directory "/usr/include/x86_64-linux-gnu/c++/5"
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory 
"/usr/lib/gcc/x86_64-linux-gnu/5/../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x
 
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/sysroot/usr/include
 /usr/include/c++/5
 /usr/include/x86_64-linux-gnu/c++/5
 /usr/include/c++/5/backward
 /usr/lib/gcc/x86_64-linux-gnu/5/include
 /usr/local/include
 /usr/lib/gcc/x86_64-linux-gnu/5/include-fixed
 /usr/include/x86_64-linux-gnu
 /usr/include
End of search list.

*>>>>>>>>>> bash script code goes here >>>>>>>>>>*
# I've already build toolchain for arm architecture.

export 
NDK=/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/
export SYSROOT=$NDK/sysroot/

export TOOLCHAIN=$NDK/
TOOL=arm-linux-androideabi
export PATH=$PATH:$TOOLCHAIN/bin:$TOOLCHAIN/${TOOL}/bin
export CC="$TOOLCHAIN/bin/arm-linux-androideabi-gcc --sysroot $SYSROOT"
export CXX="$TOOLCHAIN/bin/arm-linux-androideabi-g++ --sysroot $SYSROOT"
export CXXSTL=$NDK/include/c++/4.9.x

  
pushd protobuf-3.0.2

mkdir build
TOOLCHAIN_INC=$TOOLCHAIN/include/c++/4.9.x     
TOOLCHAIN_LIB=$TOOLCHAIN/lib/gcc/${TOOL}/4.9.x
SYSROOT_INC=${SYSROOT}/usr/include
SYSROOT_LIB=${SYSROOT}/usr/lib

./configure --prefix=$(pwd)/build \
    --host=arm-linux-androideabi \
    --with-sysroot=$SYSROOT \
    --enable-static \
    --disable-shared \
    --enable-cross-compile \
    --with-protoc=protoc LIBS="-lgcc" \
    CFLAGS="-march=armv7-a" \
    CXXFLAGS="-march=armv7-a -I${TOOLCHAIN_INC} -I${SYSROOT_INC} 
-L${TOOLCHAIN_LIB} -L${SYSROOT_LIB}"

export C_INCLUDE_PATH=${TOOLCHAIN_INC}:${SYSROOT_INC}
export CPLUS_INCLUDE_PATH=${TOOLCHAIN_INC}:${SYSROOT_INC}

make clean
make 


*>>>>>>>>>> bash script code stops here >>>>>>>>>>*

I also tried the ./configure shared by the above topic.
But neither way works.



*>>>>>>>>>> error message goes here >>>>>>>>>>*
libtool: compile:  
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/bin/arm-linux-androideabi-g++
 
-DHAVE_CONFIG_H -I. -I.. -DHAVE_PTHREAD=1 -DHAVE_ZLIB=1 -Wall 
-Wno-sign-compare -O2 -g -DNDEBUG -MT google/protobuf/compiler/importer.lo 
-MD -MP -MF google/protobuf/compiler/.deps/importer.Tpo -c 
google/protobuf/compiler/importer.cc  -fPIC -DPIC -o 
google/protobuf/compiler/.libs/importer.o
In file included from ./google/protobuf/compiler/importer.h:45:0,
                 from google/protobuf/compiler/importer.cc:51:
./google/protobuf/descriptor_database.h:181:5: error: reference to 'map' is 
ambiguous
     map<string, Value> by_name_;
     ^
In file included from 
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/set:389:0,
                 from ./google/protobuf/compiler/importer.h:42,
                 from google/protobuf/compiler/importer.cc:51:
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/__tree:1490:77:
 
note: candidates are: template<class, class, class, class> class 
std::__ndk1::map
     template <class, class, class, class> friend class 
_LIBCPP_TEMPLATE_VIS map;
                                                                            
 ^
In file included from ./google/protobuf/descriptor_database.h:40:0,
                 from ./google/protobuf/compiler/importer.h:45,
                 from google/protobuf/compiler/importer.cc:51:
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/map:609:11:
 
note:                 template<class _Key, class _Tp, class _Compare, class 
_Allocator> class std::__ndk1::map
     class map;
           ^
In file included from ./google/protobuf/compiler/importer.h:45:0,
                 from google/protobuf/compiler/importer.cc:51:
./google/protobuf/descriptor_database.h:181:5: error: 'map' does not name a 
type
     map<string, Value> by_name_;
     ^
./google/protobuf/descriptor_database.h:182:5: error: reference to 'map' is 
ambiguous
     map<string, Value> by_symbol_;
     ^
In file included from 
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/set:389:0,
                 from ./google/protobuf/compiler/importer.h:42,
                 from google/protobuf/compiler/importer.cc:51:
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/__tree:1490:77:
 
note: candidates are: template<class, class, class, class> class 
std::__ndk1::map
     template <class, class, class, class> friend class 
_LIBCPP_TEMPLATE_VIS map;
                                                                            
 ^
In file included from ./google/protobuf/descriptor_database.h:40:0,
                 from ./google/protobuf/compiler/importer.h:45,
                 from google/protobuf/compiler/importer.cc:51:
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/map:609:11:
 
note:                 template<class _Key, class _Tp, class _Compare, class 
_Allocator> class std::__ndk1::map
     class map;
           ^
In file included from ./google/protobuf/compiler/importer.h:45:0,
                 from google/protobuf/compiler/importer.cc:51:
./google/protobuf/descriptor_database.h:182:5: error: 'map' does not name a 
type
     map<string, Value> by_symbol_;
     ^
./google/protobuf/descriptor_database.h:183:5: error: reference to 'map' is 
ambiguous
     map<pair<string, int>, Value> by_extension_;
     ^
In file included from 
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/set:389:0,
                 from ./google/protobuf/compiler/importer.h:42,
                 from google/protobuf/compiler/importer.cc:51:
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/__tree:1490:77:
 
note: candidates are: template<class, class, class, class> class 
std::__ndk1::map
     template <class, class, class, class> friend class 
_LIBCPP_TEMPLATE_VIS map;
                                                                            
 ^
In file included from ./google/protobuf/descriptor_database.h:40:0,
                 from ./google/protobuf/compiler/importer.h:45,
                 from google/protobuf/compiler/importer.cc:51:
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/map:609:11:
 
note:                 template<class _Key, class _Tp, class _Compare, class 
_Allocator> class std::__ndk1::map
     class map;
           ^
In file included from ./google/protobuf/compiler/importer.h:45:0,
                 from google/protobuf/compiler/importer.cc:51:
./google/protobuf/descriptor_database.h:183:5: error: 'map' does not name a 
type
     map<pair<string, int>, Value> by_extension_;
     ^
./google/protobuf/descriptor_database.h:238:14: error: expected 
nested-name-specifier before 'map'
     typename map<string, Value>::iterator FindLastLessOrEqual(
              ^
./google/protobuf/descriptor_database.h:238:14: error: expected ';' at end 
of member declaration
./google/protobuf/descriptor_database.h:238:17: error: expected 
unqualified-id before '<' token
     typename map<string, Value>::iterator FindLastLessOrEqual(
                 ^
In file included from ./google/protobuf/compiler/importer.h:46:0,
                 from google/protobuf/compiler/importer.cc:51:
./google/protobuf/compiler/parser.h:559:11: error: reference to 'map' is 
ambiguous
   typedef map<
           ^
In file included from 
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/set:389:0,
                 from ./google/protobuf/compiler/importer.h:42,
                 from google/protobuf/compiler/importer.cc:51:
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/__tree:1490:77:
 
note: candidates are: template<class, class, class, class> class 
std::__ndk1::map
     template <class, class, class, class> friend class 
_LIBCPP_TEMPLATE_VIS map;
                                                                            
 ^
In file included from ./google/protobuf/descriptor_database.h:40:0,
                 from ./google/protobuf/compiler/importer.h:45,
                 from google/protobuf/compiler/importer.cc:51:
/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/armeabi-android-toolchain/include/c++/4.9.x/map:609:11:
 
note:                 template<class _Key, class _Tp, class _Compare, class 
_Allocator> class std::__ndk1::map
     class map;
           ^
In file included from ./google/protobuf/compiler/importer.h:46:0,
                 from google/protobuf/compiler/importer.cc:51:
./google/protobuf/compiler/parser.h:559:11: error: 'map' does not name a 
type
   typedef map<
           ^
./google/protobuf/compiler/parser.h:562:3: error: 'LocationMap' does not 
name a type
   LocationMap location_map_;
   ^
Makefile:3868: recipe for target 'google/protobuf/compiler/importer.lo' 
failed
make[3]: *** [google/protobuf/compiler/importer.lo] Error 1
make[3]: Leaving directory 
'/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/protobuf-3.0.2/src'
Makefile:1973: recipe for target 'all' failed
make[2]: *** [all] Error 2
make[2]: Leaving directory 
'/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/protobuf-3.0.2/src'
Makefile:1249: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory 
'/home/xxxx/Android/Sdk/ndk-bundle/sources/protobuf/protobuf-3.0.2'
Makefile:1155: recipe for target 'all' failed
make: *** [all] Error 2


*>>>>>>>>>> error message stops here >>>>>>>>>>*

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