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How to build boost for android as shared library with c++11 support

I am trying to build boost_1.60.0 (as shared library) for android with c++11 support. I am using the latest ndk (currently android-ndk-r10e). The build host is Windows-10.
This is for a non-opensource project. So as far as I understand I cannot use gnustl_shared, and I need to use c++_shared as the android c++ runtime.
my project-config.jam looks like this:
androidNDKRoot = c:/android-ndk-r10e ;
using gcc : android :
$(androidNDKRoot)/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-g++ :
<root>$(androidNDKRoot)/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/
<compileflags>-MMD
<compileflags>-MP
<compileflags>-MF
<compileflags>-fpic
<compileflags>-ffunction-sections
<compileflags>-funwind-tables
<compileflags>-fstack-protector
<compileflags>-no-canonical-prefixes
<compileflags>-march=armv5te
<compileflags>-mtune=xscale
<compileflags>-msoft-float
<compileflags>-fno-rtti
<compileflags>-mthumb
<compileflags>-Os
<compileflags>-g
<compileflags>-DNDEBUG
<compileflags>-fomit-frame-pointer
<compileflags>-fno-strict-aliasing
<compileflags>-finline-limit=64
<compileflags>-IC:/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include
<compileflags>-IC:/android-ndk-r10e/sources/cxx-stl/llvm-libc++/../llvm-libc++abi/libcxxabi/include
<compileflags>-IC:/android-ndk-r10e/sources/cxx-stl/llvm-libc++/../../android/support/include
<compileflags>-IC:/android-ndk-r10e/platforms/android-9/arch-arm/usr/include
<compileflags>-Wa,--noexecstack
<compileflags>-Wformat
<compileflags>-Werror=format-security
<compileflags>-DUNIX
<compileflags>-DANDROID
<compileflags>-Wl,--no-undefined
<cxxflags>-fexceptions
<linkflags>-lc++_shared
<archiver>$(androidNDKRoot)/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-ar
<ranlib>$(androidNDKRoot)/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-ranlib
;
the build command is:
b2 --toolset=gcc-android cxxflags="-std=c++11 " --prefix=..\boost_android_arm --builddir=./boost_android_arm/builddir target-os=linux --with-filesystem define=BOOST_FILESYSTEM_VERSION=3 link=shared runtime-link=shared threading=multi
In order to determine the parameters in the project-config.jam I've build a sample shared library using the ndk-build, get its debug messages, and extracted the compile and link commands it uses.
compile:
C:\android-ndk-r10e\toolchains\arm-linux-androideabi-4.8\prebuilt\windows-x86_64\bin\arm-linux-androideabi-g++.exe,C:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-g++ -MMD -MP -MF ./obj/local/armeabi/objs/someLib/./Unity1.o.d -fpic -ffunction-sections -funwind-tables -fstack-protector -no-canonical-prefixes -march=armv5te -mtune=xscale -msoft-float -fno-exceptions -fno-rtti -mthumb -Os -g -DNDEBUG -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64 -Ijni/../../library/../../../../ -Ijni/../../library/../../../../src/ -IC:/android-ndk-r10e/sources/cxx-stl/llvm-libc++/libcxx/include -IC:/android-ndk-r10e/sources/cxx-stl/llvm-libc++/../llvm-libc++abi/libcxxabi/include -IC:/android-ndk-r10e/sources/cxx-stl/llvm-libc++/../../android/support/include -Ijni/../../library -DANDROID -DHAVE_CONFIG_H -DSESTEK_ANDROID_XERCES_HACK -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11 -fno-strict-aliasing -frtti -fexceptions -DUNIX -DANDROID -IC:/android-ndk-r10e/platforms/android-9/arch-arm/usr/include -c jni/../../library/./Unity1.cpp -o ./obj/local/armeabi/objs/someLib/./Unity1.o,...)
link:
C:\android-ndk-r10e\toolchains\arm-linux-androideabi-4.8\prebuilt\windows-x86_64\bin\arm-linux-androideabi-g++.exe,C:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-g++ -Wl,-soname,libsomeLib.so -shared --sysroot=C:/android-ndk-r10e/platforms/android-9/arch-arm ./obj/local/armeabi/objs/someLib/./Unity1.o -lgcc ./obj/local/armeabi/libc++_shared.so -no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -mthumb -lc -lm -o ./obj/local/armeabi/libsomeLib.so,...)
For brevity I've only build filesystem for this trial but in the end I plan to build at least thread, filesystem, date_time, asio and log libraries.
Finally the error I get is as follows.
...patience...
...found 660 targets...
...updating 13 targets...
gcc.compile.c++ bin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi\error_code.o
gcc.link.dll bin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi\libboost_system-gcc-mt-1_60.so.1.60.0
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot open crtbegin_so.o: No such file or directory
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot find -lrt
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot open crtend_so.o: No such file or directory
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot find -lc++_shared
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot find -lstdc++
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot find -lm
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot find -lc
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot find -ldl
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: cannot find -lc
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: bin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi\error_code.o: requires unsupported dynamic reloc R_ARM_REL32; recompile with -fPIC
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: bin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi\error_code.o: requires unsupported dynamic reloc R_ARM_REL32; recompile with -fPIC
c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld.exe: error: bin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi\error_code.o: requires unsupported dynamic reloc R_ARM_REL32; recompile with -fPIC
./boost/system/detail/error_code.ipp:458: error: undefined reference to '__dso_handle'
./boost/system/detail/error_code.ipp:464: error: undefined reference to '__dso_handle'
./boost/system/detail/error_code.ipp:158: error: undefined reference to '__dso_handle'
collect2.exe: error: ld returned 1 exit status
"c:/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-g++" -o "bin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi\libboost_system-gcc-mt-1_60.so.1.60.0" -shared -Wl,--start-group "bin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi\error_code.o" -Wl,-Bstatic -Wl,-Bdynamic -lrt -Wl,--end-group -lc++_shared -pthread
...failed gcc.link.dll bin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi\libboost_system-gcc-mt-1_60.so.1.60.0...
...skipped <pstage\lib>libboost_system-gcc-mt-1_60.so.1.60.0 for lack of <pbin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi>libboost_system-gcc-mt-1_60.so.1.60.0...
gcc.compile.c++ bin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi\codecvt_error_category.o
gcc.compile.c++ bin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi\operations.o
gcc.compile.c++ bin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi\path.o
gcc.compile.c++ bin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi\path_traits.o
gcc.compile.c++ bin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi\portability.o
gcc.compile.c++ bin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi\unique_path.o
gcc.compile.c++ bin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi\utf8_codecvt_facet.o
gcc.compile.c++ bin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi\windows_file_codecvt.o
...skipped <pbin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi>libboost_filesystem-gcc-mt-1_60.so.1.60.0 for lack of <pbin.v2\libs\system\build\gcc-android\release\target-os-linux\threading-multi>libboost_system-gcc-mt-1_60.so.1.60.0...
...skipped <pstage\lib>libboost_filesystem-gcc-mt-1_60.so.1.60.0 for lack of <pbin.v2\libs\filesystem\build\gcc-android\release\target-os-linux\threading-multi>libboost_filesystem-gcc-mt-1_60.so.1.60.0...
...failed updating 1 target...
...skipped 3 targets...
...updated 9 targets...
The error tells that it needs the directory to find the necessary libraries, but the problem is that under android ndk there are several files with names rt and crtbegin_so.o and such. I guess I need to make the compiler determine the correct directory itself.
With all being said what I need actually is to build boost shared libraries for android with c++11 support. So I may accept your help either by pointing me in the right direction using the above build parameters or providing me a working sample so I can work out the details myself.
Oh also one more thing: if I use link=static instead of link=shared in the build command the build succeeds. But I have not tried the produced static libraries.

Building Boost on Linux using the NDK
I know you're asking about Windows, but I wanted to do this on macOS and it failed with nearly the exact error. I finally broke down and did it on my linode server it worked without a problem. This says to me that they aren't really doing a good job of testing other platforms. Compiling static only on macOS works as you also discovered on Windows.
Point of reference
NDK R13
Boost 1.62.0
Tested with clang++; g++ also works
If you're wondering why I'm using clang, the Release Notes have the following message:
GCC is no longer supported. It will not be removed from the NDK just
yet, but is no longer receiving backports. It cannot be removed until
after libc++ has become stable enough to be the default, as some parts
of gnustl are still incompatible with Clang. It will likely be removed
after that point.
user-config.jam
I placed this file in my home directory. Yuck.
androidNDKRoot = /path/to/ndk-R13-standalone ;
using clang : android
:
$(androidNDKRoot)/bin/arm-linux-androideabi-clang++
:
;
Modifying libtool.m4 in boost to avoid versioning of the libraries
libtool.m4 under tools/build/src/engine/boehm_gc/libtool.m4 in the boost source has no reference to android and you'll need to change version_type=linux in the section linux*) to version_type=none. This will cause symbolic links to appear without the version number appended to the end linked to the versioned shared libraries in the output.
Building
Target OS MUST be android to avoid the -lrt flag being passed which will cause shared linking to fail.
./b2 \
-d+2 \
-j 4 \
--reconfigure \
target-os=android \
toolset=clang-android \
include=${ANDROID_NDK_STANDALONE}/include/c++/4.9.x \
link=static,shared \
variant=debug,release \
threading=multi \
--layout=versioned \
--prefix=${BOOST_INSTALL_DIR} \
install

A relevant information is here (Boost for Android), where they have been able to successfully build the shared libraries, but it seems that the resulting files have a version suffix which android can't handle. Also one can't just rename the binary because the file name is hardcoded in it. One way out, as per the last post, is to set the variable version_type to none (version_type=none) in the linux section of file. In your case, the build setup could be a little different, but it may be worthwhile to take a look at the changes they made at that discussion.

user-config.jam
If you want to find boost from cmake(find_package) you must use the version of compiler, and not android like the top answer, in your user-config.jam like below according to boost doc.
androidNDKRoot = /path/to/ndk-R13-standalone ;
using clang : 8.0.1
:
$(androidNDKRoot)/bin/arm-linux-androideabi-clang++
:
;

My answer for me in future. How to build latest Boost(1.79.0) with latest NDK(24.0) on Windows PC for Android.
Go to your downloaded boost_1_79_0 unpacked directory and build b2 tool:
.\bootstrap.bat
Check b2 tools is ready:
b2 --version
B2 4.8-git <-- possible output
create file user-config.jam in %HOME% directory with content like that(example):
using clang : arm64 : c\:/Users/l_chayka/Downloads/android-ndk-r24/toolchains/llvm/prebuilt/windows-x86_64/bin/aarch64-linux-android21-clang++.cmd : <cxxflags>-std=c++20 ;
using clang : arm : c\:/Users/l_chayka/Downloads/android-ndk-r24/toolchains/llvm/prebuilt/windows-x86_64/bin/armv7a-linux-androideabi21-clang++.cmd : <cxxflags>-std=c++20 ;
using clang : x86 : c\:/Users/l_chayka/Downloads/android-ndk-r24/toolchains/llvm/prebuilt/windows-x86_64/bin/i686-linux-android21-clang++.cmd : <cxxflags>-std=c++20 ;
using clang : x86_64 : c\:/Users/l_chayka/Downloads/android-ndk-r24/toolchains/llvm/prebuilt/windows-x86_64/bin/x86_64-linux-android21-clang++.cmd : <cxxflags>-std=c++20 ;
Go to boost root and try to build for every Android architecture (arm, arm64, x86, x86_64) example:
c:\Users\l_chayka\Downloads\boost_1_79_0>b2.exe toolset=clang-x86_64 target-os=android link=static variant=debug threading=multi --layout=versioned --prefix=c:/boost-x64_86/ install
c:\Users\l_chayka\Downloads\boost_1_79_0>b2.exe toolset=clang-x86 target-os=android link=static variant=debug threading=multi --layout=versioned --prefix=c:/boost-x86/ install
c:\Users\l_chayka\Downloads\boost_1_79_0>b2.exe toolset=clang-arm target-os=android link=static variant=debug threading=multi --layout=versioned --prefix=c:/boost-arm/ install
c:\Users\l_chayka\Downloads\boost_1_79_0>b2.exe toolset=clang-arm64 target-os=android link=static variant=debug threading=multi --layout=versioned --prefix=c:/boost-arm64/ install
Now check you instalation prefix path.

Getting debug symbols in final SO file even when building Release in CMake

I'm using CMake (generator is ninja) to build a shared library using the NDK toolchain (g++ 4.9). Below is the verbose output for building a single CPP file in the library when I build with ninja:
[34/164] /usr/local/bin/android-ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-g++ -DANDROID -DBOOST_ALL_NO_LIB -fexceptions -frtti -fpic -Wno-psabi --sysroot=/usr/local/bin/android-ndk/platforms/android-15/arch-arm -funwind-tables -finline-limit=64 -fsigned-char -no-canonical-prefixes -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -fdata-sections -ffunction-sections -Wa,--noexecstack -mthumb -fomit-frame-pointer -fno-strict-aliasing -O3 -DNDEBUG -isystem /usr/local/bin/android-ndk/platforms/android-15/arch-arm/usr/include -isystem /usr/local/bin/android-ndk/sources/cxx-stl/gnu-libstdc++/4.9/include -isystem /usr/local/bin/android-ndk/sources/cxx-stl/gnu-libstdc++/4.9/libs/armeabi-v7a/include -isystem /usr/local/bin/android-ndk/sources/cxx-stl/gnu-libstdc++/4.9/include/backward -I/usr/local/bin/android-ndk/sources/android/cpufeatures -I/usr/local/bin/android-ndk/sources/android/native_app_glue -ICore/Artifacts/Android -IApplications/Survey/Source -ICore/UI/. -ICore/UI/Source -ICore/ThirdParty/PowerVR/sdk/Include -ICore/ThirdParty/PowerVR/tools/include -ICore/ThirdParty/PowerVR/tools/include/OGLES2 -ICore/ThirdParty/boost/include -ICore/ThirdParty/openssl/include -ICore/ThirdParty/sqlite/include -ICore/WebServices/Source -std=gnu++14 -MMD -MT Applications/Survey/CMakeFiles/Survey.dir/Source/View/RadioGroup.cpp.o -MF Applications/Survey/CMakeFiles/Survey.dir/Source/View/RadioGroup.cpp.o.d -o Applications/Survey/CMakeFiles/Survey.dir/Source/View/RadioGroup.cpp.o -c Applications/Survey/Source/View/RadioGroup.cpp
Note that I specify -DCMAKE_BUILD_TYPE=Release when I generate.
The -g option is not present in the command line invocation, however the final binary is 19MB:
-rwxrwxr-x 1 bamboo bamboo 19173588 Jul 15 10:30 libzApp.so*
I ran size on it to determine what was making it so huge, but I got this:
$ size libzApp.so
text data bss dec hex filename
7097019 201268 53488 7351775 702ddf libzApp.so
That only accounts for 7mb of data. So I ran this:
$ objdump --debugging libzApp.so | head -25
libzApp.so: file format elf32-little
Contents of the .debug_abbrev section:
Number TAG (0x0)
1 DW_TAG_compile_unit [has children]
DW_AT_producer DW_FORM_strp
DW_AT_language DW_FORM_data1
DW_AT_name DW_FORM_strp
DW_AT_comp_dir DW_FORM_strp
DW_AT_low_pc DW_FORM_addr
DW_AT_entry_pc DW_FORM_addr
DW_AT_ranges DW_FORM_data4
DW_AT_stmt_list DW_FORM_data4
DW_AT value: 0 DW_FORM value: 0
2 DW_TAG_typedef [no children]
DW_AT_name DW_FORM_strp
DW_AT_decl_file DW_FORM_data1
DW_AT_decl_line DW_FORM_data1
DW_AT_type DW_FORM_ref4
DW_AT value: 0 DW_FORM value: 0
3 DW_TAG_base_type [no children]
DW_AT_byte_size DW_FORM_data1
DW_AT_encoding DW_FORM_data1
I think this pretty much confirms that it has debug symbols. Can anyone help me understand why the .so is so large? Assuming it's because of debug symbols, what about the command line invocation would cause this?
EDIT
As suggested in the comments section, running strip on the SO file definitely brings its size down to expected value (basically what we see from the result of the size command). However, why would debug symbols be built into the shared object when I specifically told GCC to not build debug symbols? Am I missing something here?

I can suggest you to use strip to remove the debugging information, eg:
strip libzApp.so
That is not so bad to do that because, for example, Qt's build system qmake always do that in it's install target of resulting Makefile.
By default, compiler always add a relocation information and symbol table into the binary. It also adds a lot of other information which may be stripped out (see link on answer below).
You may also use -s parameter to the compiler:
g++ -s ...
According to the docs:
-s:
Remove all symbol table and relocation information from the executable.
This flag should work exactly as strip. Here is also some similiar answer on stackoverflow.

Why does arm-linux-androideabi-gcc enforce -fpic?

I was surprised to see that gcc enforces code to be position independent, even if such flag wasn't provided explicitly in the command line.
I suspect it might have to do with certain expectations from Android's dynamic loader (e.g. expectations on relocation types and freedom to put code wherever it wants) but I am not certain.
Can anybody explain why that really is?
$ arm-linux-androideabi-gcc --version | grep GCC
arm-linux-androideabi-gcc (GCC) 4.4.3
$ arm-linux-androideabi-gcc -v -S main.c |& grep fpic
/home1/local64/android-toolchain/bin/../libexec/gcc/arm-linux-androideabi/4.4.3/cc1 -quiet -v -iprefix /home1/local64/android-toolchain/bin/../lib/gcc/arm-linux-androideabi/4.4.3/ -isysroot /home1/local64/android-toolchain/bin/../sysroot main.c -mbionic -fpic -quiet -dumpbase main.c -march=armv5te -mfloat-abi=soft -mfpu=vfp -auxbase main -version -o main.s

Starting with Android 4.1, Google is forcing full ASLR to overcome common security exploits, see this article for more details.
Position Independent Code (PIC) is required for this to work but also PIE (Position Independent Executable) too.

how to force "./configure" to stop using -pthread during compilation?

I am trying to cross-compile something for Android, which has pthread support but does NOT use -pthread when compiling and linking. If you try to use -pthread, compilation using the cross-compiler will fail.
When trying to cross-compile something by first using the 'configure' tool, it keeps trying to use -pthread to do things like "check for gethostbyname" and therefore my configure fails:
configure:21229: checking for gethostbyname
configure:21229: /mnt/hgfs/Documents/thesis/android-wmon/core/android-wireshark/agcc \
-o conftest -D_U_="__attribute__((unused))" -g -O2 -Wall -W -Wextra \
-Wdeclaration-after-statement -Wendif-labels -Wpointer-arith \
-Wno-pointer-sign -Warray-bounds -Wcast-align -Wformat-security \
-fexcess-precision=fast -I/usr/local/include -pthread \
-I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include \
-I/usr/local/include -Wl,--as-needed -L/usr/local/lib conftest.c >&5
arm-eabi-gcc: error: unrecognized option '-pthread'
I cannot find where it picks up this flag from, and how I can get it to stop doing that. I do not see it in configure anywhere, so it must be dynamically generating it. I just can't seem to find where it does this so I can remove it from whatever variable it is stored within configure.

Well, it's a hack but it seems as though you can manipulate CFLAGS before it tries the link test:
ac_fn_c_try_link ()
{
CFLAGS="${CFLAGS/-pthread/}"
... that is in 'configure'

error linking to libgcc.a when cross-compiling for Android, but symbols exists?

I am trying to cross-compile a very simple program for Android that worked with android-ndk-r6b and prior, but does not work on android-ndk-r7 and newer:
int main() {
;
return 0;
}
I was able to do so using an "agcc" script on an older version of Android that can be found here. I'm sincerely not trying to use an Android.mk file to build this. I know I can, but this is part of something much larger I'm working on. So take it for face-value that I am trying to cross-compile this in a different way.
Anyway, I try to build and get:
$ arm-eabi-gcc -o test test.c
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/bin/ld: warning: /tmp/cc00QD3x.o uses variable-size enums yet the output is to use 32-bit enums; use of enum values across objects may fail
/tmp/cc00QD3x.o:(.ARM.exidx.text.main+0x0): undefined reference to `__aeabi_unwind_cpp_pr0'
collect2: ld returned 1 exit status
So, the key error is the undefined reference to __aeabi_unwind_cpp_pr0.
After doing some digging, this symbol is in libgcc.a which I am linking to:
$ arm-eabi-nm /home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/lib/gcc/arm-eabi/4.4.3/libgcc.a | grep __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
00000590 T __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
U __aeabi_unwind_cpp_pr0
It has a 'T' which tells me that it is in the code somewhere, right?
Here is the verbose output of arm-eabi-gcc which shows I am in fact linking to this library:
Using built-in specs.
Target: arm-eabi
Configured with: /home/jingyu/projects/gcc/android-toolchainsrc/build/../gcc/gcc-4.4.3/configure --prefix=/usr/local --target=arm-eabi --host=x86_64-linux-gnu --build=x86_64-linux-gnu --with-gnu-as --with-gnu-ld --enable-languages=c,c++ --with-gmp=/home/jingyu/projects/gcc/toolchain_build/obj/temp-install --with-mpfr=/home/jingyu/projects/gcc/toolchain_build/obj/temp-install --disable-libssp --enable-threads --disable-nls --disable-libmudflap --disable-libgomp --disable-libstdc__-v3 --disable-sjlj-exceptions --disable-shared --disable-tls --with-float=soft --with-fpu=vfp --with-arch=armv5te --enable-target-optspace --with-abi=aapcs --with-gcc-version=4.4.3 --with-binutils-version=2.19 --with-gmp-version=4.2.4 --with-mpfr-version=2.4.1 --with-gdb-version=7.1.x --with-arch=armv5te --with-multilib-list=mandroid --with-sysroot=/usr/local/google/home/android/cupcake_rel_root --program-transform-name='s&^&arm-eabi-&'
Thread model: single
gcc version 4.4.3 (GCC)
COLLECT_GCC_OPTIONS='-o' 'test' '-I/home/gnychis/Documents/android/os/system/core/include' '-I/home/gnychis/Documents/android/os/hardware/libhardware/include' '-I/home/gnychis/Documents/android/os/hardware/ril/include' '-I/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/include' '-I/home/gnychis/Documents/android/os/dalvik/libnativehelper/include' '-I/home/gnychis/Documents/android/os/frameworks/base/include' '-I/home/gnychis/Documents/android/os/external/skia/include' '-I/home/gnychis/Documents/android/os/out/target/product/generic/obj/include' '-I/home/gnychis/Documents/android/os/bionic/libc/arch-arm/include' '-I/home/gnychis/Documents/android/os/bionic/libc/include' '-I/home/gnychis/Documents/android/os/bionic/libstdc++/include' '-I/home/gnychis/Documents/android/os/bionic/libc/kernel/common' '-I/home/gnychis/Documents/android/os/bionic/libc/kernel/arch-arm' '-I/home/gnychis/Documents/android/os/bionic/libm/include' '-I/home/gnychis/Documents/android/os/bionic/libm/include/arch/arm' '-I/home/gnychis/Documents/android/os/bionic/libthread_db/include' '-I/home/gnychis/Documents/android/os/bionic/libm/arm' '-I/home/gnychis/Documents/android/os/bionic/libm' '-I/home/gnychis/Documents/android/os/out/target/product/generic/obj/SHARED_LIBRARIES/libm_intermediates' '-D__ARM_ARCH_5__' '-D__ARM_ARCH_5T__' '-D__ARM_ARCH_5E__' '-D__ARM_ARCH_5TE__' '-DANDROID' '-DSK_RELEASE' '-DNDEBUG' '-UDEBUG' '-march=armv5te' '-mtune=xscale' '-msoft-float' '-mthumb-interwork' '-fpic' '-fno-exceptions' '-ffunction-sections' '-funwind-tables' '-fstack-protector' '-fmessage-length=0' '-Bdynamic' '-L/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib' '-nostdlib' '-v' '-mfpu=vfp' '-mabi=aapcs'
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../libexec/gcc/arm-eabi/4.4.3/cc1 -quiet -v -I/home/gnychis/Documents/android/os/system/core/include -I/home/gnychis/Documents/android/os/hardware/libhardware/include -I/home/gnychis/Documents/android/os/hardware/ril/include -I/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/include -I/home/gnychis/Documents/android/os/dalvik/libnativehelper/include -I/home/gnychis/Documents/android/os/frameworks/base/include -I/home/gnychis/Documents/android/os/external/skia/include -I/home/gnychis/Documents/android/os/out/target/product/generic/obj/include -I/home/gnychis/Documents/android/os/bionic/libc/arch-arm/include -I/home/gnychis/Documents/android/os/bionic/libc/include -I/home/gnychis/Documents/android/os/bionic/libstdc++/include -I/home/gnychis/Documents/android/os/bionic/libc/kernel/common -I/home/gnychis/Documents/android/os/bionic/libc/kernel/arch-arm -I/home/gnychis/Documents/android/os/bionic/libm/include -I/home/gnychis/Documents/android/os/bionic/libm/include/arch/arm -I/home/gnychis/Documents/android/os/bionic/libthread_db/include -I/home/gnychis/Documents/android/os/bionic/libm/arm -I/home/gnychis/Documents/android/os/bionic/libm -I/home/gnychis/Documents/android/os/out/target/product/generic/obj/SHARED_LIBRARIES/libm_intermediates -iprefix /home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/ -D__USES_INITFINI__ -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -DANDROID -DSK_RELEASE -DNDEBUG -UDEBUG test.c -quiet -dumpbase test.c -march=armv5te -mtune=xscale -msoft-float -mthumb-interwork -mfpu=vfp -mabi=aapcs -auxbase test -version -fpic -fno-exceptions -ffunction-sections -funwind-tables -fstack-protector -fmessage-length=0 -o /tmp/ccIIp1N2.s
GNU C (GCC) version 4.4.3 (arm-eabi)
compiled by GNU C version 4.2.4 (Ubuntu 4.2.4-1ubuntu4), GMP version 4.2.4, MPFR version 2.4.1.
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=128206
ignoring nonexistent directory "/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/include"
ignoring nonexistent directory "/usr/local/google/home/android/cupcake_rel_root/usr/local/include"
ignoring duplicate directory "/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/../../lib/gcc/arm-eabi/4.4.3/include"
ignoring duplicate directory "/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/../../lib/gcc/arm-eabi/4.4.3/include-fixed"
ignoring nonexistent directory "/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/../../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/include"
ignoring nonexistent directory "/usr/local/google/home/android/cupcake_rel_root/usr/include"
ignoring nonexistent directory "/home/gnychis/Documents/android/os/out/target/product/generic/obj/include"
ignoring nonexistent directory "/home/gnychis/Documents/android/os/bionic/libm/include/arch/arm"
ignoring nonexistent directory "/home/gnychis/Documents/android/os/out/target/product/generic/obj/SHARED_LIBRARIES/libm_intermediates"
#include "..." search starts here:
#include <...> search starts here:
/home/gnychis/Documents/android/os/system/core/include
/home/gnychis/Documents/android/os/hardware/libhardware/include
/home/gnychis/Documents/android/os/hardware/ril/include
/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/include
/home/gnychis/Documents/android/os/dalvik/libnativehelper/include
/home/gnychis/Documents/android/os/frameworks/base/include
/home/gnychis/Documents/android/os/external/skia/include
/home/gnychis/Documents/android/os/bionic/libc/arch-arm/include
/home/gnychis/Documents/android/os/bionic/libc/include
/home/gnychis/Documents/android/os/bionic/libstdc++/include
/home/gnychis/Documents/android/os/bionic/libc/kernel/common
/home/gnychis/Documents/android/os/bionic/libc/kernel/arch-arm
/home/gnychis/Documents/android/os/bionic/libm/include
/home/gnychis/Documents/android/os/bionic/libthread_db/include
/home/gnychis/Documents/android/os/bionic/libm/arm
/home/gnychis/Documents/android/os/bionic/libm
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/include
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/include-fixed
End of search list.
GNU C (GCC) version 4.4.3 (arm-eabi)
compiled by GNU C version 4.2.4 (Ubuntu 4.2.4-1ubuntu4), GMP version 4.2.4, MPFR version 2.4.1.
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=128206
Compiler executable checksum: c575b4a30c8a516a84cf6e49f2cb23d1
COLLECT_GCC_OPTIONS='-o' 'test' '-I/home/gnychis/Documents/android/os/system/core/include' '-I/home/gnychis/Documents/android/os/hardware/libhardware/include' '-I/home/gnychis/Documents/android/os/hardware/ril/include' '-I/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/include' '-I/home/gnychis/Documents/android/os/dalvik/libnativehelper/include' '-I/home/gnychis/Documents/android/os/frameworks/base/include' '-I/home/gnychis/Documents/android/os/external/skia/include' '-I/home/gnychis/Documents/android/os/out/target/product/generic/obj/include' '-I/home/gnychis/Documents/android/os/bionic/libc/arch-arm/include' '-I/home/gnychis/Documents/android/os/bionic/libc/include' '-I/home/gnychis/Documents/android/os/bionic/libstdc++/include' '-I/home/gnychis/Documents/android/os/bionic/libc/kernel/common' '-I/home/gnychis/Documents/android/os/bionic/libc/kernel/arch-arm' '-I/home/gnychis/Documents/android/os/bionic/libm/include' '-I/home/gnychis/Documents/android/os/bionic/libm/include/arch/arm' '-I/home/gnychis/Documents/android/os/bionic/libthread_db/include' '-I/home/gnychis/Documents/android/os/bionic/libm/arm' '-I/home/gnychis/Documents/android/os/bionic/libm' '-I/home/gnychis/Documents/android/os/out/target/product/generic/obj/SHARED_LIBRARIES/libm_intermediates' '-D__ARM_ARCH_5__' '-D__ARM_ARCH_5T__' '-D__ARM_ARCH_5E__' '-D__ARM_ARCH_5TE__' '-DANDROID' '-DSK_RELEASE' '-DNDEBUG' '-UDEBUG' '-march=armv5te' '-mtune=xscale' '-msoft-float' '-mthumb-interwork' '-fpic' '-fno-exceptions' '-ffunction-sections' '-funwind-tables' '-fstack-protector' '-fmessage-length=0' '-Bdynamic' '-L/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib' '-nostdlib' '-v' '-mfpu=vfp' '-mabi=aapcs'
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/bin/as -v -I/home/gnychis/Documents/android/os/system/core/include -I/home/gnychis/Documents/android/os/hardware/libhardware/include -I/home/gnychis/Documents/android/os/hardware/ril/include -I/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/include -I/home/gnychis/Documents/android/os/dalvik/libnativehelper/include -I/home/gnychis/Documents/android/os/frameworks/base/include -I/home/gnychis/Documents/android/os/external/skia/include -I/home/gnychis/Documents/android/os/out/target/product/generic/obj/include -I/home/gnychis/Documents/android/os/bionic/libc/arch-arm/include -I/home/gnychis/Documents/android/os/bionic/libc/include -I/home/gnychis/Documents/android/os/bionic/libstdc++/include -I/home/gnychis/Documents/android/os/bionic/libc/kernel/common -I/home/gnychis/Documents/android/os/bionic/libc/kernel/arch-arm -I/home/gnychis/Documents/android/os/bionic/libm/include -I/home/gnychis/Documents/android/os/bionic/libm/include/arch/arm -I/home/gnychis/Documents/android/os/bionic/libthread_db/include -I/home/gnychis/Documents/android/os/bionic/libm/arm -I/home/gnychis/Documents/android/os/bionic/libm -I/home/gnychis/Documents/android/os/out/target/product/generic/obj/SHARED_LIBRARIES/libm_intermediates -march=armv5te -mthumb-interwork -mfloat-abi=soft -mfpu=vfp -meabi=5 -o /tmp/ccGAKjxX.o /tmp/ccIIp1N2.s
GNU assembler version 2.19 (arm-eabi) using BFD version (GNU Binutils) 2.19
COMPILER_PATH=/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../libexec/gcc/arm-eabi/4.4.3/:/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../libexec/gcc/:/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/bin/
LIBRARY_PATH=/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/:/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/:/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/lib/
COLLECT_GCC_OPTIONS='-o' 'test' '-I/home/gnychis/Documents/android/os/system/core/include' '-I/home/gnychis/Documents/android/os/hardware/libhardware/include' '-I/home/gnychis/Documents/android/os/hardware/ril/include' '-I/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/include' '-I/home/gnychis/Documents/android/os/dalvik/libnativehelper/include' '-I/home/gnychis/Documents/android/os/frameworks/base/include' '-I/home/gnychis/Documents/android/os/external/skia/include' '-I/home/gnychis/Documents/android/os/out/target/product/generic/obj/include' '-I/home/gnychis/Documents/android/os/bionic/libc/arch-arm/include' '-I/home/gnychis/Documents/android/os/bionic/libc/include' '-I/home/gnychis/Documents/android/os/bionic/libstdc++/include' '-I/home/gnychis/Documents/android/os/bionic/libc/kernel/common' '-I/home/gnychis/Documents/android/os/bionic/libc/kernel/arch-arm' '-I/home/gnychis/Documents/android/os/bionic/libm/include' '-I/home/gnychis/Documents/android/os/bionic/libm/include/arch/arm' '-I/home/gnychis/Documents/android/os/bionic/libthread_db/include' '-I/home/gnychis/Documents/android/os/bionic/libm/arm' '-I/home/gnychis/Documents/android/os/bionic/libm' '-I/home/gnychis/Documents/android/os/out/target/product/generic/obj/SHARED_LIBRARIES/libm_intermediates' '-D__ARM_ARCH_5__' '-D__ARM_ARCH_5T__' '-D__ARM_ARCH_5E__' '-D__ARM_ARCH_5TE__' '-DANDROID' '-DSK_RELEASE' '-DNDEBUG' '-UDEBUG' '-march=armv5te' '-mtune=xscale' '-msoft-float' '-mthumb-interwork' '-fpic' '-fno-exceptions' '-ffunction-sections' '-funwind-tables' '-fstack-protector' '-fmessage-length=0' '-Bdynamic' '-L/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib' '-nostdlib' '-v' '-mfpu=vfp' '-mabi=aapcs'
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../libexec/gcc/arm-eabi/4.4.3/collect2 --sysroot=/usr/local/google/home/android/cupcake_rel_root -X -o test -L/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib -L/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3 -L/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc -L/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/lib -T /home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/arm-eabi/lib/ldscripts/armelf.x -dynamic-linker /system/bin/linker --gc-sections -z nocopyreloc --no-undefined -rpath-link=/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib /home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib/crtend_android.o /home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib/crtbegin_dynamic.o /home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/lib32/libiberty.a /home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/lib/gcc/arm-eabi/4.4.3/libgcc.a -lc -lm /tmp/ccGAKjxX.o
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/bin/ld: warning: /tmp/ccGAKjxX.o uses variable-size enums yet the output is to use 32-bit enums; use of enum values across objects may fail
/tmp/ccGAKjxX.o:(.ARM.exidx.text.main+0x0): undefined reference to `__aeabi_unwind_cpp_pr0'
collect2: ld returned 1 exit status
So I'm just a bit unsure why I am getting this undefined reference. I have used this same method of cross-compiling with a slightly different version of Android and had no issue.
Does anything stand out to anyone?
EDIT: The actual command generated is the following:
arm-eabi-gcc -o test -I/home/gnychis/Documents/android/os/system/core/include -I/home/gnychis/Documents/android/os/hardware/libhardware/include -I/home/gnychis/Documents/android/os/hardware/ril/include -I/home/gnychis/Documents/android/os/dalvik/libnativehelper/include -I/home/gnychis/Documents/android/os/frameworks/base/include -I/home/gnychis/Documents/android/os/external/skia/include -I/home/gnychis/Documents/android/os/out/target/product/generic/obj/include -I/home/gnychis/Documents/android/os/bionic/libc/arch-arm/include -I/home/gnychis/Documents/android/os/bionic/libc/include -I/home/gnychis/Documents/android/os/bionic/libstdc++/include -I/home/gnychis/Documents/android/os/bionic/libc/kernel/common -I/home/gnychis/Documents/android/os/bionic/libc/kernel/arch-arm -I/home/gnychis/Documents/android/os/bionic/libm/include -I/home/gnychis/Documents/android/os/bionic/libm/include/arch/arm -I/home/gnychis/Documents/android/os/bionic/libthread_db/include -I/home/gnychis/Documents/android/os/bionic/libm/arm -I/home/gnychis/Documents/android/os/bionic/libm -I/home/gnychis/Documents/android/os/out/target/product/generic/obj/SHARED_LIBRARIES/libm_intermediates -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -DANDROID -DSK_RELEASE -DNDEBUG -include /home/gnychis/Documents/android/os/system/core/include/arch/linux-arm/AndroidConfig.h -UDEBUG -march=armv5te -mtune=xscale -msoft-float -mthumb-interwork -fpic -fno-exceptions -ffunction-sections -funwind-tables -fstack-protector -fmessage-length=0 -Bdynamic -Wl,-T,/home/gnychis/Documents/android/os/build/core/armelf.x -Wl,-dynamic-linker,/system/bin/linker -Wl,--gc-sections -Wl,-z,nocopyreloc -Wl,--no-undefined -Wl,-rpath-link=/home/gnychis/Documents/android/os/../android-ndk-r7b/platforms/android-9/arch-arm/usr/lib -L/home/gnychis/Documents/android/os/../android-ndk-r7b/platforms/android-9/arch-arm/usr/lib -nostdlib /home/gnychis/Documents/android/os/../android-ndk-r7b/platforms/android-9/arch-arm/usr/lib/crtend_android.o /home/gnychis/Documents/android/os/../android-ndk-r7b/platforms/android-9/arch-arm/usr/lib/crtbegin_dynamic.o /home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/lib/gcc/arm-eabi/4.4.3/libgcc.a -lc -lm test.c

Here's your link like, broken out into multiple lines for clarity:
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../libexec/gcc/arm-eabi/4.4.3/collect2 \
--sysroot=/usr/local/google/home/android/cupcake_rel_root \
-X \
-o test \
-L/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib \
-L/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3 \
-L/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc
-L/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/bin/../lib/gcc/arm-eabi/4.4.3/../../../../arm-eabi/lib
-T /home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/arm-eabi/lib/ldscripts/armelf.x \
-dynamic-linker /system/bin/linker \
--gc-sections \
-z nocopyreloc \
--no-undefined \
-rpath-link=/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib \
/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib/crtend_android.o \
/home/gnychis/Documents/android/android-ndk-r7b/platforms/android-9/arch-arm/usr/lib/crtbegin_dynamic.o \
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/lib32/libiberty.a \
/home/gnychis/Documents/android/os/prebuilt/linux-x86/toolchain/arm-eabi-4.4.3/lib/gcc/arm-eabi/4.4.3/libgcc.a \
-lc \
-lm \
/tmp/ccGAKjxX.o
As you can see, your own object file (the temporary one) is the very last item on the command line. This is just wrong. It needs to be before the libraries, at least, if it is to link correctly.
Basically, your agcc script is passing -nostdlib (which says that you know better) and then passing the libraries manually, but doing it in completely the wrong order. If you fix this, all should be well.
Link order is very important. Objects and libraries that provide symbols must be linked after objects and libraries that require symbols.
There were certain versions of the tools that could tolerate bad ordering, but I think that was a bug, or mis-feature, because newer toolchains cannot, and should not. Presumably this script was written for one of those.

Where to find: __aeabi_unwind_cpp_pr0 and other mysterious, undefined functions
(I had a similar problem error to what you describe, but found a different solution, that may be helpful to you or others)
I found 'libgccunwind.a' library in the Google NDK package which defines a number of these mysterious functions (they are functions referenced by libc.a and other libraries in the NDK package, but not defined in a standard library) I found them defined in a libgccunwind.a library in:
\sources\android\gccunwind\libs\armeabi
NM shows that they are defined in that lib from an 'unwind-arm.o' file:
nm libgccunwind.a
unwind-arm.o:
U _GLOBAL_OFFSET_TABLE_
00000cf8 T _Unwind_Complete
00000cfc T _Unwind_DeleteException
00000ba4 T _Unwind_GetCFA
00000408 t _Unwind_GetGR
00000474 t _Unwind_SetGR
000003c4 T _Unwind_VRS_Get
0000084c T _Unwind_VRS_Pop
00000430 T _Unwind_VRS_Set
00000844 T __aeabi_unwind_cpp_pr0
0000083c W __aeabi_unwind_cpp_pr1
00000834 W __aeabi_unwind_cpp_pr2
w __cxa_begin_cleanup
w __cxa_call_unexpected
w __cxa_type_match
U __exidx_end
U __exidx_start
00000d1c T __gnu_Unwind_Backtrace
w __gnu_Unwind_Find_exidx
Independant of the libgccunwind.a above, I searched for __aeabi_unwind_cpp_pr0 and unwind-arm.c and unwind.c, and found various c source, for example:
http://lxr.free-electrons.com/source/arch/arm/kernel/unwind.c?a=arm
http://opensource.apple.com/source/gcc/gcc-5646/gcc/config/arm/unwind-arm.c
These programs seem to be derived from a similar source. My guess is that these 'unwind_cpp' (and related functions) are called by the functions in libc.a when a function returns or on certain events so that these functions can perform some debugging or tracing operation.
In any event, adding that directory in a -L linker option and -lgccunwind linker option (after the -lc linker option) allowed the linker to find those 'undefined' functions -- and let me get to the next problem I have in cross compiling to ARM systems.