Build with -mthumb when targetting armv7-a

TODO: --enable-thumb for ffmpeg

compile.sh

@@ -85,6 +85,12 @@ cd contrib/android
 
 # TODO: mpeg2, dts, theora
 
+if test -z "${NO_NEON}" -o -n "${TEGRA2}"; then
+    # assumes armv7-a
+    echo "EXTRA_CFLAGS += -mthumb" >> config.mak
+    echo "NOTHUMB := -marm" >> config.mak
+fi
+
 make fetch
 make
 

configure.sh

@@ -14,12 +14,12 @@ LDFLAGS="-Wl,-Bdynamic,-dynamic-linker=/system/bin/linker -Wl,--no-undefined"
 
 if [ -z "$NO_NEON" ]; then
     CXX_TARGET="armeabi-v7a"
-    CFLAGS="$CFLAGS -mfpu=neon -mcpu=cortex-a8"
+    CFLAGS="$CFLAGS -mfpu=neon -mcpu=cortex-a8 -mthumb"
     LDFLAGS="$LDFLAGS -Wl,--fix-cortex-a8"
     EXTRA_PARAMS=" --enable-neon"
 elif [ -n "$TEGRA2" ]; then
     CXX_TARGET="armeabi-v7a"
-    CFLAGS="$CFLAGS -mfpu=vfpv3-d16 -mcpu=cortex-a9"
+    CFLAGS="$CFLAGS -mfpu=vfpv3-d16 -mcpu=cortex-a9 -mthumb"
     EXTRA_PARAMS=" --disable-neon"
 else
     CXX_TARGET="armeabi"