Thankyou for your inputs,Pranav.
I was able to run Ndk-build after this by 
C:\Users\urvik\android-ndk-r13\ndk-build  command.
After the build got over, 
​6 warning and ​
2 errors
​ were generated. Errors
 in basic_op.h file at line 641 & 700
​ are
 :
​​

jni/g729/siphon-g729/Headers\basic_op.h:641:21: error: invalid output constraint '=&r*i' in asm
                  : "=&r*i"(out),
and 
                    ^
​​
jni/g729/siphon-g729/Headers\basic_op.h:700:7: error: invalid output constraint '=&r*i' in asm
    : "=&r*i"(out)

​Can someone help me in resolving this issue? 
Thank you.

On Thu, Oct 13, 2016 at 7:25 PM, Pranav Jain <contact@pranavjain.me> wrote:
Hi Urvika,
Try adding GNUMAKE Environment variable and then running the ndk-build from windows command prompt. It should fix the error.

On Thu, Oct 13, 2016 at 9:10 AM, Urvika Gola <urvika.gola@gmail.com> wrote:
Hi Daniel,
I tried running it , My learnings through out are givenstepwise below after going through BUILD.txt in https://github.com/opentelecoms-org/lumicall/blob/master/BUILD.txt

Prerequisite :
1. Downloaded Gradle 2.2.1 and adding its environment variables.
C:\Users\urvik>gradle -v

------------------------------------------------------------
Gradle 2.2.1
---------------------------------------------------------------------------

To build the project from the command line:

I cloned "lumicall" into a folder "abc" which I created.
urvik@DESKTOP-56TSQGT MINGW64 ~/desktop/abc
Cloning into 'lumicall'...
remote: Counting objects: 9709, done.
remote: Total 9709 (delta 0), reused 0 (delta 0), pack-reused 9709
Receiving objects: 100% (9709/9709), 22.84 MiB | 602.00 KiB/s, done.
Resolving deltas: 100% (5644/5644), done.
Checking out files: 100% (390/390), done.

a. Fetching the submodules :
urvik@DESKTOP-56TSQGT MINGW64 ~/desktop/abc/lumicall (master) $ git submodule init
Submodule 'jni' (https://github.com/opentelecoms-org/codecs.git) registered for  path 'jni'

urvik@DESKTOP-56TSQGT MINGW64 ~/desktop/abc/lumicall (master)
$ git submodule update
Cloning into 'C:/Users/urvik/Desktop/abc/lumicall/jni'...
Submodule path 'jni': checked out '0db2f6135ce354faf3746e05c1ee1008a2fab8d7'

before cloning I tried downloading the lumicall project and then extracted the folders and when I was performing these commands, no submodules were fetched and the jni folder was empty. Later on I tried the cloning method which worked.

2. To build the JNI code using NDK build tool, which is a tool through which we can use C, C++ code in our android project. (.cpp files in jni folder)
 Initially I installed NDK through android studio along with Cmake and LLDB.
and
$ ${NDK_HOME}/ndk-build
didnt work --
urvik@DESKTOP-56TSQGT MINGW64 ~/desktop/abc/lumicall (master)
$ C:/Users/urvik/AppData/Local/Android/Sdk/ndk-bundle/ndk-build
bash: C:/Users/urvik/AppData/Local/Android/Sdk/ndk-bundle/ndk-build: No such file or directory


Later on I downloaded NDK Zip Folder and then executed
k@DESKTOP-56TSQGT MINGW64 ~/desktop/abc/lumicall (master)
$ C:/Users/urvik/android-ndk-r13/build/ndk-build
ERROR: Cannot find 'make' program. Please install Cygwin make package
or define the GNUMAKE variable to point to it.

I installed the Cvgwin make pakage,
urvik@DESKTOP-56TSQGT ~
$ make -v
GNU Make 4.1

I tried a lot resolving this but I am unable to do so.
Could you please guide me through.
Thank you 
- Urvika Gola

On Thu, Oct 13, 2016 at 12:25 AM, Daniel Pocock <daniel@pocock.pro> wrote:


On 12/10/16 20:32, Urvika Gola wrote:
> Hi Daniel,
> Thank you for reverting back.
> Yes, I know Pranav, I discussed outreachy with him and he guided me.
> My strongest skills are java and android development among those set of
> languages.
>

Great, please fork Lumicall in Github, try to compile it and tell us
what happens, any problems you encounter, etc
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--
Regards,

Pranav Jain


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