This page was roughly updated from the SDL2 version, but needs to be inspected for details that are out of date, and a few SDL2isms need to be cleaned out still, too. Read this page with some skepticism for now.
A lot of information can be found in README-android.
This page is more walkthrough-oriented.
sudo apt install openjdk-17-jdk ant android-sdk-platform-tools-commontools/bin/sdkmanager (or tools/android pre-2017) and install one API (>= 31)PATH="/usr/src/android-ndk-rXXx:$PATH" # for 'ndk-build'
PATH="/usr/src/android-sdk-linux/tools:$PATH" # for 'android'
PATH="/usr/src/android-sdk-linux/platform-tools:$PATH" # for 'adb'
export ANDROID_HOME="/usr/src/android-sdk-linux" # for gradle
export ANDROID_NDK_HOME="/usr/src/android-ndk-rXXx" # for gradlecd /usr/src/SDL3/build-scripts/
./androidbuild.sh org.libsdl.testgles ../test/testgles.ccd /usr/src/SDL3/build/org.libsdl.testgles/
./gradlew installDebugNotes:
sudo update-alternatives --config java and select jdk-17 as default; or use JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64 ./gradlewjavax/xml/bind/annotation/XmlSchema, Could not initialize class com.android.sdklib.repository.AndroidSdkHandler: check the Android Gradle Plugin version in /android-project/build.gradle, e.g. classpath 'com.android.tools.build:gradle:3.1.0'/android-project/gradle/wrapper/gradle-wrapper.properties: distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-all.zipandroid-project/app/build.gradle:android {
buildToolsVersion "28.0.1"
compileSdkVersion 28externalNativeBuild {
ndkBuild {
arguments "APP_PLATFORM=android-14"
abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'ABIs [x86_64, arm64-v8a] are not supported for platform. Supported ABIs are [armeabi, armeabi-v7a, x86, mips]: upgrade to NDK >= 10apt install gradle libgradle-android-plugin-javaLet's modify SDL3_image/showimage.c to show a simple embedded image (e.g. XPM).
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However, we are currently witnessing a seismic shift. Mature women—those in their 40s, 50s, 60s, and beyond—are no longer just part of the supporting cast; they are the architects, the powerhouses, and the primary draws of the global entertainment industry. Breaking the "Ingénue" Obsession For decades, the "expiration date" for women in
From a purely economic standpoint, ignoring mature women is bad business. Women over 50 control a significant portion of household wealth and are one of the most consistent demographics for theater-going and subscription services. Brands and studios are finally realizing that this audience wants to see themselves reflected on screen—not as caricatures, but as vibrant, active participants in the world. Conclusion Producers and directors like (Hello Sunshine) and Margot
Series like Hacks (starring Jean Smart), Grace and Frankie (Jane Fonda and Lily Tomlin), and The White Lotus (Jennifer Coolidge) have shown that mature women can drive both critical acclaim and viral cultural moments. These roles offer "meatier" scripts—characters who are flawed, sexual, ambitious, and hilariously cynical. They aren't just "grandmas"; they are the smartest people in the room. Power Behind the Lens
Then let's make an Android app out of it. To compile:
cd /usr/src/SDL3/build-scripts/
./androidbuild.sh org.libsdl.showimage /usr/src/SDL3_image/showimage.c
cd /usr/src/SDL3/build/org.libsdl.showimage/
ln -s /usr/src/SDL3_image jni/
ln -s /usr/src/SDL3_image/external/libwebp-0.3.0 jni/webp
sed -i -e 's/^LOCAL_SHARED_LIBRARIES.*/& SDL3_image/' jni/src/Android.mk
ndk-build -j$(nproc)
ant debug installNotes:
You use autotools in your project and can't be bothering understanding ndk-build's cryptic errors? This guide is for you!
Note: this environment can be used for CMake too.
(FIXME: this needs to be updated for SDL3.)
cd /usr/src/
wget https://libsdl.org/release/SDL2-2.0.5.tar.gz
wget https://www.libsdl.org/projects/SDL_image/release/SDL2_image-2.0.1.tar.gz
wget https://www.libsdl.org/projects/SDL_mixer/release/SDL2_mixer-2.0.1.tar.gz
wget https://www.libsdl.org/projects/SDL_net/release/SDL2_net-2.0.1.tar.gz
wget https://www.libsdl.org/projects/SDL_ttf/release/SDL2_ttf-2.0.14.tar.gz
tar xf SDL2-2.0.5.tar.gz
tar xf SDL2_image-2.0.1.tar.gz
tar xf SDL2_mixer-2.0.1.tar.gz
tar xf SDL2_net-2.0.1.tar.gz
tar xf SDL2_ttf-2.0.14.tar.gz
ln -s SDL2-2.0.5 SDL2
ln -s SDL2_image-2.0.1 SDL2_image
ln -s SDL2_mixer-2.0.1 SDL2_mixer
ln -s SDL2_net-2.0.1 SDL2_net
ln -s SDL2_ttf-2.0.14 SDL2_ttfcd /usr/src/SDL3/
#git checkout -- . # remove traces of previous builds
cd build-scripts/
# edit androidbuild.sh and modify $ANDROID update project --target android-XX
./androidbuild.sh org.libsdl /dev/null
# doesn't matter if the actual build fails, it's just for setup
cd ../build/org.libsdl/rm -rf jni/src/ln -s /usr/src/SDL3_image jni/
ln -s /usr/src/SDL3_image/external/libwebp-0.3.0 jni/webp
ln -s /usr/src/SDL3_mixer jni/
ln -s /usr/src/SDL3_mixer/external/libmikmod-3.1.12 jni/libmikmod
ln -s /usr/src/SDL3_mixer/external/smpeg2-2.0.0 jni/smpeg2
ln -s /usr/src/SDL3_net jni/
ln -s /usr/src/SDL3_ttf jni/jni/Android.mk to disable some formats, e.g.:SUPPORT_MP3_SMPEG := false
include $(call all-subdir-makefiles)
ndk-build -j$(nproc)Note: no need to add System.loadLibrary calls in SDLActivity.java, your application will be linked to them and Android's ld-linux loads them automatically.
Now:
/usr/src/android-ndk-r8c/build/tools/make-standalone-toolchain.sh \
--platform=android-14 --install-dir=/usr/src/ndk-standalone-14-arm --arch=armNDK_STANDALONE=/usr/src/ndk-standalone-14-arm
PATH=$NDK_STANDALONE/bin:$PATHcd /usr/src/SDL3/build/org.libsdl/
for i in libs/armeabi/*; do ln -nfs $(pwd)/$i $NDK_STANDALONE/sysroot/usr/lib/; done
mkdir $NDK_STANDALONE/sysroot/usr/include/SDL3/
cp jni/SDL/include/* $NDK_STANDALONE/sysroot/usr/include/SDL3/
cp jni/*/SDL*.h $NDK_STANDALONE/sysroot/usr/include/SDL3/pkg-config and install a host-triplet-prefixed symlink in the PATH (auto-detected by autoconf):VERSION=0.9.12
cd /usr/src/
wget http://rabbit.dereferenced.org/~nenolod/distfiles/pkgconf-$VERSION.tar.gz
tar xf pkgconf-$VERSION.tar.gz
cd pkgconf-$VERSION/
mkdir native-android/ && cd native-android/
../configure --prefix=$NDK_STANDALONE/sysroot/usr
make -j$(nproc)
make install
ln -s ../sysroot/usr/bin/pkgconf $NDK_STANDALONE/bin/arm-linux-androideabi-pkg-config
mkdir $NDK_STANDALONE/sysroot/usr/lib/pkgconfig/.pc files for SDL:For decades, the "expiration date" for women in Hollywood was a punchline that felt like a death sentence. Actresses often spoke of a sudden "shuttering" of roles once they hit 40, transitioning abruptly from leading ladies to the "mother of the protagonist" or, worse, disappearing entirely.
The visibility of mature women on screen is bolstered by the rising number of women holding the reins behind the scenes. Producers and directors like (Hello Sunshine) and Margot Robbie (LuckyChap) have made it their mission to option books and develop scripts that center on female experiences across all ages.
However, we are currently witnessing a seismic shift. Mature women—those in their 40s, 50s, 60s, and beyond—are no longer just part of the supporting cast; they are the architects, the powerhouses, and the primary draws of the global entertainment industry. Breaking the "Ingénue" Obsession
From a purely economic standpoint, ignoring mature women is bad business. Women over 50 control a significant portion of household wealth and are one of the most consistent demographics for theater-going and subscription services. Brands and studios are finally realizing that this audience wants to see themselves reflected on screen—not as caricatures, but as vibrant, active participants in the world. Conclusion
Series like Hacks (starring Jean Smart), Grace and Frankie (Jane Fonda and Lily Tomlin), and The White Lotus (Jennifer Coolidge) have shown that mature women can drive both critical acclaim and viral cultural moments. These roles offer "meatier" scripts—characters who are flawed, sexual, ambitious, and hilariously cynical. They aren't just "grandmas"; they are the smartest people in the room. Power Behind the Lens
You can add any other libraries (e.g.: SDL2_gfx, freetype, gettext, gmp...) using commands like:
mkdir cross-android/ && cd cross-android/
../configure --host=arm-linux-androideabi --prefix=$NDK_STANDALONE/sysroot/usr \
--with-some-option --enable-another-option \
--disable-shared
make -j$(nproc)
make installStatic builds (--disable-shared) are recommended for simplicity (no additional .so to declare).
(FIXME: is there an SDL3_gfx?)
Example with SDL2_gfx:
VERSION=1.0.3
wget http://www.ferzkopp.net/Software/SDL2_gfx/SDL2_gfx-$VERSION.tar.gz
tar xf SDL2_gfx-$VERSION.tar.gz
mv SDL2_gfx-$VERSION/ SDL2_gfx/
cd SDL2_gfx/
mkdir cross-android/ && cd cross-android/
../configure --host=arm-linux-androideabi --prefix=$NDK_STANDALONE/sysroot/usr \
--disable-shared --disable-mmx
make -j$(nproc)
make installYou can compile YOUR application using this technique, with some more steps to tell Android how to run it using JNI.
First, prepare an Android project:
/usr/src/SDL3/android-project skeleton as explained in README-android.md. You can leave it as-is in a first step.mkdir -p libs/armeabi/
for i in /usr/src/SDL3/build/org.libsdl/libs/armeabi/*; do ln -nfs $i libs/armeabi/; doneMake your project Android-aware:
/usr/src/SDL3/src/main/android/SDL_android_main.c in your project (comment out the line referencing "SDL_internal.h"). Compile it as C (not C++).configure.ac, detect Android:AM_CONDITIONAL(ANDROID, test "$host" = "arm-unknown-linux-androideabi")Makefile.am, tell Automake you'll build executables as libraries, using something like:if ANDROID
<!-- Build .so JNI libs rather than executables -->
AM_CFLAGS = -fPIC
AM_LDFLAGS += -shared
COMMON_OBJS += SDL_android_main.c
endifPATH=$NDK_STANDALONE/bin:$PATH
mkdir cross-android/ && cd cross-android/
../configure --host=arm-linux-androideabi \
--prefix=/android-aint-posix \
--with-your-option --enable-your-other-option ...
makearmeabi-v7a and document what devices support it); something like:mkdir cross-android-v7a/ && cd cross-android-v7a/
# .o: -march=armv5te -mtune=xscale -msoft-float -mthumb => -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -mthumb
# .so: -march=armv7-a -Wl,--fix-cortex-a8
CFLAGS="-g -O2 -march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=softfp -mthumb" LFDLAGS="-march=armv7-a -Wl,--fix-cortex-a8" \
../configure --host=arm-linux-androideabi \
...Now you can install your pre-built binaries and build the Android project:
android-project/libs/armeabi/libmain.so..apk:android update project --name your_app --path . --target android-XX
ant debug
ant installdadb shell am start -a android.intenon.MAIN -n org.libsdl.app/org.libsdl.app.SDLActivity # replace with your app package(Work In Progress)
You can use our Android GCC toolchain using a simple toolchain file:
# CMake toolchain file
SET(CMAKE_SYSTEM_NAME Linux) # Tell CMake we're cross-compiling
include(CMakeForceCompiler)
# Prefix detection only works with compiler id "GNU"
CMAKE_FORCE_C_COMPILER(arm-linux-androideabi-gcc GNU)
SET(ANDROID TRUE)You then call CMake like this:
PATH=$NDK_STANDALONE/bin:$PATH
cmake \
-D CMAKE_TOOLCHAIN_FILE=../android_toolchain.cmake \
...If ant installd categorically refuses to install with Failure [INSTALL_FAILED_INSUFFICIENT_STORAGE], even if you have free local storage, that may mean anything. Check logcat first:
adb logcatIf the error logs are not helpful (likely ;')) try locating all past traces of the application:
find / -name "org...."and remove them all.
If the problem persists, you may try installing on the SD card:
adb install -s bin/app-debug.apkIf you get in your logcat:
SDL: Couldn't locate Java callbacks, check that they're named and typed correctly
this probably means your SDLActivity.java is out-of-sync with your libSDL3.so.