Compile OpenSSL 1.1.0 for Android

Question

I'm trying to compile openssl-1.1.0 on Android by cygwin follow by this guidance:

Compiling the latest OpenSSL for Android

But it's failed, this is the error :

crypto/aes/aes_ecb.c:10:20: fatal error: assert.h: No such file or directory
 #include <assert.h>

I'm using Android-ndk-r12b, Win10, cygwin 64 bit.

This is my pre-config before compiling:

export NDK=~/android-ndk-r12b
$NDK/build/tools/make-standalone-toolchain.sh --platform=android-21 --toolchain=arm-linux-androideabi-4.9 --install-dir=`pwd`/android-toolchain-arm
export TOOLCHAIN_PATH=`pwd`/android-toolchain-arm/bin
export TOOL=arm-linux-androideabi
export NDK_TOOLCHAIN_BASENAME=${TOOLCHAIN_PATH}/${TOOL}
export CC=$NDK_TOOLCHAIN_BASENAME-gcc
export CXX=$NDK_TOOLCHAIN_BASENAME-g++
export LINK=${CXX}
export LD=$NDK_TOOLCHAIN_BASENAME-ld
export AR=$NDK_TOOLCHAIN_BASENAME-ar
export RANLIB=$NDK_TOOLCHAIN_BASENAME-ranlib
export STRIP=$NDK_TOOLCHAIN_BASENAME-strip
export ARCH_FLAGS="-mthumb"
export ARCH_LINK=
export CPPFLAGS=" ${ARCH_FLAGS} -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-strict-aliasing -finline-limit=64 "
export CXXFLAGS=" ${ARCH_FLAGS} -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-strict-aliasing -finline-limit=64 -frtti -fexceptions "
export CFLAGS=" ${ARCH_FLAGS} -fpic -ffunction-sections -funwind-tables -fstack-protector -fno-strict-aliasing -finline-limit=64 "
export LDFLAGS=" ${ARCH_LINK} "
./Configure android
PATH=$TOOLCHAIN_PATH:$PATH make

Please help to tell me where I'm wrong

EDIT:

Follow by jww's suggestion, I try with https://wiki.openssl.org/index.php/Android

I changed some config in setenv-android.sh into:

-_ANDROID_NDK="android-ndk-r12b"
-_ANDROID_EABI="arm-linux-androideabi-4.9"
-_ANDROID_API="android-21"

To generate valid toolchains, I add "windows-x86_64" into for host in "linux-x86_64" "linux-x86" "darwin-x86_64" "darwin-x86" Now it's:

for host in "linux-x86_64" "linux-x86" "darwin-x86_64" "darwin-x86" "windows-x86_64"
do
....
done

+Build openssl-1.1.0:

Error:

$ perl -pi -e 's/install: all install_docs install_sw/install: install_docs install_sw/g' Makefile.org
Can't open Makefile.org: No such file or directory.

EDIT 2:

I follow the wiki update by jww and it runs smoothly until this command:

arm-linux-androideabi-gcc -I /usr/local/ssl/include my_prog.c -o my_prog.exe -L /usr/local/ssl/lib -lssl -lcrypto

If I use $ANDROID_TOOCHAIN/arm-linux-androideabi-gcc -I /usr/local/ssl/include my_prog.c -o my_prog.exe -L /usr/local/ssl/lib -lssl -lcrypto , it doesn't understand -I and my_prog.c

I want to build openssl-1.1.0 for android but I don't know how to fix it. Please help

Answer 1

I was trying to build OpenSSL 1.1.0g for Android with

android NDK android-ndk-r16b, centOS 6.9 64 bit OS.

as per https://wiki.openssl.org/index.php/Android

and had the same problem

crypto/aes/aes_ecb.c:10:20: fatal error: assert.h: No such file or directory
 #include <assert.h>

After searching, I found that Updated NDK android-ndk-r16b has updated the sysroot to android-ndk-r16b/sysroot which contains the include directories but no library.

So the include path and the library path has changed

but the setenv-android.sh set the sysroot as

export ANDROID_SYSROOT="$ANDROID_NDK_ROOT/platforms/$_ANDROID_API/$_ANDROID_ARCH"

But this is valid for android-ndk-r13b

I can successfully build the OpenSSL with android-ndk-r13b.