tdf#134846 Android Viewer: Include native libs again

commit 0dffc65236
    Date:   Fri Jun 5 08:59:26 2020 -0400

        android: fix the build output directory

submitted on 2020-07-07 had changed the output directory
for native libraries, so the directory used by
Android Viewer was empty, and native libs no longer
contained in the package/APK.

Store the actual/new directory in a variable and
use that one in build.gradle to make things work
again.

Change-Id: I5a051342278ab14e71edf47dd93e8dacdb9f3cb6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/98970
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

android/Bootstrap/Makefile.shared

@@ -14,7 +14,8 @@
 # configurability on platforms like Android and iOS where apps based on LO
 # code are very much self-contained pre-packaged thingies.
 
-SODEST=$(BUILDDIR)/android/jniLibs/$(ANDROID_APP_ABI)
+JNILIBSDIR=$(BUILDDIR)/android/jniLibs
+SODEST=$(JNILIBSDIR)/$(ANDROID_APP_ABI)
 OBJLOCAL=$(BUILDDIR)/android/obj/local/$(ANDROID_APP_ABI)
 
 #
@@ -90,6 +91,7 @@ liboSettings.gradle: $(BUILDDIR)/config_build.mk $(BUILDDIR)/config_host.mk
 		echo "// created by Makefile.shared - your changes will be overridden" \
 		&& echo "ext {" \
 		&& echo "    liboSrcRoot         = '$(SRC_ROOT)'" \
+		&& echo "    liboJniLibsdir      = '$(JNILIBSDIR)'" \
 		&& echo "    liboWorkdir         = '$(WORKDIR)'" \
 		&& echo "    liboInstdir         = '$(INSTDIR)'" \
 		&& echo "    liboEtcFolder       = '$(LIBO_ETC_FOLDER)'" \

android/source/build.gradle

@@ -48,7 +48,7 @@ android {
         main.assets.srcDirs = ['assets']
         main.res.srcDirs = ['res']
         main.java.srcDirs = ['../Bootstrap/src', 'src/java']
-        main.jniLibs.srcDirs = ['jniLibs']
+        main.jniLibs.srcDirs = ["${liboJniLibsdir}"]
         main.jni.srcDirs = [] // don't attempt to build native-lib via gradle
         // the configuration data that might be stripped or not
         fullUI.assets.srcDirs 'assets_fullUI'