android: tune symbols for lldb & we actually target 14 as minSDK

-glldb might be placebo switch like -ggdb2, but at last it won't hurt
:-)
increase java heap size for gradle to allow inprocess dex as well as
actually processing the huge files.
furthermore fix platform level in configure to match the minSDK value
from build.gradle

Change-Id: I57d7d4c67bc3e5ed8bfed1e592b85211b5b8905a
Reviewed-on: https://gerrit.libreoffice.org/42162
Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Tested-by: Jenkins <ci@libreoffice.org>

android/source/gradle.properties

@@ -0,0 +1 @@
+org.gradle.jvmargs=-Xmx2048m

configure.ac

@@ -474,18 +474,15 @@ if test -n "$with_android_ndk"; then
         fi
     fi
 
-    ANDROID_API_LEVEL=15
+    ANDROID_API_LEVEL=14
     if test $host_cpu = arm; then
         android_gnu_prefix=arm-linux-androideabi
     elif test $host_cpu = aarch64; then
         android_gnu_prefix=aarch64-linux-android
         ANDROID_NDK_TOOLCHAIN_VERSION_SUBDIR="${with_android_ndk_toolchain_version}/"
-        ANDROID_API_LEVEL=L
+        ANDROID_API_LEVEL=21
     elif test $host_cpu = mips; then
         android_gnu_prefix=mipsel-linux-android
-    elif test $ANDROID_NDK_VERSION = r8; then
-        # The prefix used for the x86 tool-chain changed between NDK r8 and r8b
-        android_gnu_prefix=i686-android-linux
     else
         android_gnu_prefix=i686-linux-android
     fi
@@ -850,7 +847,7 @@ linux-android*)
     ;;
 esac
 
-if echo "$host_os" | grep -q linux-android ; then
+if test "$_os" = "Android" ; then
     if test -z "$with_android_sdk"; then
         AC_MSG_ERROR([the --with-android-sdk option is mandatory, unless it is available at external/android-sdk-linux/.])
     fi
@@ -11883,7 +11880,7 @@ else
 fi
 AC_SUBST(OOO_VENDOR)
 
-if echo "$host_os" | grep -q linux-android ; then
+if test "$_os" = "Android" ; then
     ANDROID_PACKAGE_NAME=
     AC_MSG_CHECKING([for Android package name])
     if test -z "$with_android_package_name" -o "$with_android_package_name" = "no"; then

solenv/gbuild/platform/com_GCC_defs.mk

@@ -165,8 +165,10 @@ gb_PrecompiledHeader_EXCEPTIONFLAGS := $(gb_LinkTarget_EXCEPTIONFLAGS)
 # optimization level
 gb_COMPILERNOOPTFLAGS := -O0 -fstrict-aliasing -fstrict-overflow
 
+ifeq ($(OS),ANDROID)
+gb_DEBUGINFO_FLAGS=-glldb
 # Clang does not know -ggdb2 or some other options
-ifeq ($(HAVE_GCC_GGDB2),TRUE)
+else ifeq ($(HAVE_GCC_GGDB2),TRUE)
 gb_DEBUGINFO_FLAGS=-ggdb2
 else
 gb_DEBUGINFO_FLAGS=-g2