Re: [Boost-users] Need help with errors while building boost for clang on android NDK

28 Sep 2016

      On Mon, Sep 26, 2016 at 11:55 AM, Robert Dailey
 wrote:
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On Mon, Sep 26, 2016 at 11:09 AM, Oliver Kowalke
 wrote:
...
2016-09-26 17:57 GMT+02:00 Robert Dailey :
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clang-linux.compile.asm
bin.v2\libs\context\build\clang-linux-android\release\link-static\runtime-link-static\target-os-linux\threading-multi\asm\make_i386_ms_pe_gas.o
libs\\context\\src\\asm\\make_i386_ms_pe_gas.asm:30:1: error: unknown
directive
.def _make_fcontext; .scl 2; .type 32; .endef
you try to build for i386 instead arm
How can I make it use arm instead?
I assume you try to cross compile :
http://www.boost.org/doc/libs/1_61_0/libs/context/doc/html/context/architect...
I am indeed trying to cross compile, however I am not familiar with b2
nor do I much care to learn it (since it's a means to an end for me to
build boost).
Can you provide an example of how I can specify the documented
settings to b2 for my build? Do I provide the values to those in my
project-config file?
Would really love help with this guys. I literally can't find info on
this anywhere else. Surely someone has had success getting 1.61
building with NDK + ARM + Clang.

I made a best-guess using the context cross compiling settings linked
earlier. Does this seem correct? It doesn't build at the moment saying
it can't find locale-related symbols. That doesn't help me at all so I
guess I'm going to have to dig into the llvm STL code and find out
what preprocessor flags I'm missing (assuming it's that simple). Also
I still don't know how to specify 'ar' and 'ranlib' executables to
boost from NDK.

using clang : android :
    $(androidNDKRoot)/toolchains/llvm/prebuilt/$(androidPlatform)/bin/clang++ :
    <compileflags>--sysroot=$(androidNDKRoot)/platforms/android-15/arch-arm
    <compileflags>-Os
    <compileflags>-fno-strict-aliasing
    <compileflags>-O2
    <compileflags>-DNDEBUG
    <compileflags>-g
    <compileflags>-I$(androidNDKRoot)/sources/cxx-stl/llvm-libc++abi/libcxxabi/include
    <compileflags>-I$(androidNDKRoot)/sources/cxx-stl/llvm-libc++/libcxx/include
    <compileflags>-I$(androidNDKRoot)/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a
    <compileflags>-I$(androidNDKRoot)/sources/android/support/include
    <compileflags>-DANDROID
    <compileflags>-D__ANDROID__
    <compileflags>-D__arm__
    <compileflags>-D_REENTRANT
    <architecture>arm
    <address-model>32
    <binary-format>pe
    <abi>aapcs
    ;