Extended Android build instructions.

doc/install.html

@@ -405,20 +405,49 @@ make HOST_CC="gcc -m32" CROSS=mips-linux-
 make HOST_CC="gcc -m32" CROSS=mipsel-linux-
 </pre>
 <p>
-You can cross-compile for <b id="android">Android (ARM)</b> using the <a href="http://developer.android.com/sdk/ndk/index.html"><span class="ext">&raquo;</span>&nbsp;Android NDK</a>.
+You can cross-compile for <b id="android">Android</b> using the <a href="http://developer.android.com/sdk/ndk/index.html"><span class="ext">&raquo;</span>&nbsp;Android NDK</a>.
 The environment variables need to match the install locations and the
 desired target platform. E.g. Android&nbsp;4.0 corresponds to ABI level&nbsp;14.
-For details check the files <tt>docs/STANDALONE-TOOLCHAIN.html</tt> and
-<tt>docs/STABLE-APIS.html</tt> in the NDK directory.
+For details check the folder <tt>docs</tt> in the NDK directory.
+</p>
+<p>
+Only a few common variations for the different CPUs, ABIs and platforms
+are listed. Please use your own judgement for which combination you want
+to build/deploy or which lowest common denominator you want to pick:
 </p>
 <pre class="code">
+# Android/ARM, armeabi (ARMv5TE soft-float), Android 2.2+ (Froyo)
+NDK=/opt/android/ndk
+NDKABI=8
+NDKVER=$NDK/toolchains/arm-linux-androideabi-4.6
+NDKP=$NDKVER/prebuilt/linux-x86/bin/arm-linux-androideabi-
+NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-arm"
+make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF"
+
+# Android/ARM, armeabi-v7a (ARMv7 VFP), Android 4.0+ (ICS)
 NDK=/opt/android/ndk
 NDKABI=14
 NDKVER=$NDK/toolchains/arm-linux-androideabi-4.6
 NDKP=$NDKVER/prebuilt/linux-x86/bin/arm-linux-androideabi-
-NDKARCH="-march=armv7-a -mfloat-abi=softfp -Wl,--fix-cortex-a8"
 NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-arm"
+NDKARCH="-march=armv7-a -mfloat-abi=softfp -Wl,--fix-cortex-a8"
 make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF $NDKARCH"
+
+# Android/MIPS, mips (MIPS32R1 hard-float), Android 4.0+ (ICS)
+NDK=/opt/android/ndk
+NDKABI=14
+NDKVER=$NDK/toolchains/mipsel-linux-android-4.6
+NDKP=$NDKVER/prebuilt/linux-x86/bin/mipsel-linux-android-
+NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-mips"
+make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF"
+
+# Android/x86, x86 (i686 SSE3), Android 4.0+ (ICS)
+NDK=/opt/android/ndk
+NDKABI=14
+NDKVER=$NDK/toolchains/x86-4.6
+NDKP=$NDKVER/prebuilt/linux-x86/bin/i686-linux-android-
+NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-x86"
+make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_FLAGS="$NDKF"
 </pre>
 <p>
 You can cross-compile for <b id="ios">iOS 3.0+</b> (iPhone/iPad) using the <a href="http://developer.apple.com/devcenter/ios/index.action"><span class="ext">&raquo;</span>&nbsp;iOS SDK</a>.