Develop Reference

Building libreoffice gives an error and I don't know how to fix it

Build output is:
... very long output of compiled files is omitted...
[MAK] CustomTarget/android/source/done
creating liboSettings.gradle
[build PY ] native-code.cxx
/bin/sh: 1: /home/bart/Projects/libreoffice/solenv/bin/native-code.py: not found
Makefile:15: recipe for target 'native-code.cxx' failed
make[2]: *** [native-code.cxx] Error 127
/home/bart/Projects/libreoffice/android/CustomTarget_lo_android.mk:17: recipe for target '/home/bart/Projects/libreoffice/workdir/CustomTarget/android/source/done' failed
make[1]: *** [/home/bart/Projects/libreoffice/workdir/CustomTarget/android/source/done] Error 2
Makefile:282: recipe for target 'build' failed
make: *** [build] Error 2
I am on Ubuntu 18.04.2 LTS.
My autogen.input is:
--with-distro=LibreOfficeAndroid
--with-android-sdk=/home/bart/Android/Sdk
--with-android-ndk=/home/bart/Android/android-ndk-r20
--with-jdk-home=/usr/lib/jvm/java-8-openjdk-amd64
I have used this page as a manual.
Also, I have noticed that native-code.cxx file is empty in libreoffice/android/source

Ok, figured it out. I didn't had python2 installed on my system (however had python3). Could configure check it?

Error while compiling android source code android-6.0.1_r7

Hello I have latest ubuntu 16.0.4,I am following this tutorial for compiling android source code source code for android but I am getting this error
clang: error: linker command failed with exit code 1 (use -v to see invocation)
build/core/host_shared_library_internal.mk:51: recipe for target 'out/host/linux-x86/obj32/lib/libart.so' failed
make: *** [out/host/linux-x86/obj32/lib/libart.so] Error 1
I refered this link but not luck
I have attached the screenshot where I am getting stuck

Running AOSP on MAC: stdarg.h error

I have the source code for android-5.0.0_r7.0.1. After doing:
make -j4
I keep getting this:
error: stdarg.h: No such file or directory
In file included from system/core/include/cutils/log.h:1,
from system/core/include/utils/KeyedVector.h:24,
from frameworks/native/include/input/Input.h:26,
from frameworks/native/include/input/InputDevice.h:20,
from frameworks/native/libs/input/InputDevice.cpp:23:
system/core/include/log/log.h:35:20: error: stdarg.h: No such file or directory
make: *** [out/host/darwin-x86/obj32/EXECUTABLES/validatekeymaps_intermediates/Main.o] Error 1
make: *** Waiting for unfinished jobs....
make: *** [out/host/darwin-x86/obj32/STATIC_LIBRARIES/libinput_intermediates/Keyboard.o] Error 1
make: *** [out/host/darwin-x86/obj32/STATIC_LIBRARIES/libinput_intermediates/InputDevice.o] Error 1
make: *** [out/host/darwin-x86/obj32/STATIC_LIBRARIES/libinput_intermediates/Input.o] Error 1
#### make failed to build some targets (01:32 (mm:ss)) ####
I have looked at the google groups and other stack overflow questions, but I cannot seem to figure out what is going wrong.

#Meteorite
Well, ultimately after googling I discovered the AOSP for some reason did not support the latest version of Xcode tools and OS X. I dualbooted windows 7 with ubuntu, and did the whole process. And when I did the make command on ubuntu I typed: make -k -i -B. That is, I gave it the keep going, ignore make errors and build unconditionally flags.

Error: file not found: arch/arm/boot/compressed/piggy.lzo

I am trying to build android project
Getting below error even after setting correct path for toolchains
/bin/sh: lzop: not found
AS arch/arm/boot/compressed/piggy.lzo.o
arch/arm/boot/compressed/piggy.lzo.S: Assembler messages:
arch/arm/boot/compressed/piggy.lzo.S:4: Error: file not found: arch/arm/boot/compressed/piggy.lzo
make[2]: *** [arch/arm/boot/compressed/piggy.lzo.o] Error 1
make[1]: *** [arch/arm/boot/compressed/vmlinux] Error 2
make: *** [zImage] Error 2
make: Leaving directory `/home/user/workspace/android/kernel/exynos54xx'
build: error: build-kernel failed and die !!!

Here is a solution if you're using Ubuntu:
$ sudo apt-get install lzop
or look for the lzop package of you OS.

"cannot open linker script file" when compiling GameKit for Android

When I built Gamekit for Android, I got the follow error:
...(deleted)
[ 98%] Built target OgreKitCore
Linking CXX executable ../../../bin/StripBlend
/usr/local/android-ndk-r8b/toolchains/mipsel-linux-android-4.6/prebuilt/linux-x86/bin/../lib/gcc/mipsel-linux-android/4.6.x-google/../../../../mipsel-linux-android/bin/ld: cannot open linker script file /usr/local/android-ndk/toolchains/mipsel-linux-android-4.6/mipself.x: No such file or directory
collect2: ld returned 1 exit status
make[2]: *** [../bin/StripBlend] Error 1
make[1]: *** [FileTools/Strip/CMakeFiles/StripBlend.dir/all] Error 2
make: *** [all] Error 2
I google it and found a related post:
https://groups.google.com/forum/#!msg/doubango/TVOUjTxfbtA/y6eaikfcTu0J
They just rollback NDK version to fix this problem.
However, I have to build an Android Gamekit library for MIPS CPU, so I need NDK-r8 or NDK-r8b.
Is there any suggestion to fix this problem?
PS: GameKit is http://code.google.com/p/gamekit/

Copy mipself.x and mipself.xsc, which can be downloaded from the Internet,
into /toolchains/mipsel-linux-android-4.6/ folder, and then fix this problem.