diff --git a/sys/android-build.sh b/sys/android-build.sh
index df71e0de34..0556a46433 100755
--- a/sys/android-build.sh
+++ b/sys/android-build.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 BUILD=1
+FLAGS=""
 PREFIX="/data/data/org.radare.radare2installer/radare2"
 
 type pax
@@ -8,16 +9,22 @@ type pax
 
 cd `dirname $PWD/$0` ; cd ..
 
+# we need a more recent ndk to build the mergedlib for mips
+
 case "$1" in
 "mips")
 	NDK_ARCH=mips
 	STATIC_BUILD=0
 	STRIP=mips-linux-android-strip
+#	FLAGS="-mlong-calls"
+#	export LDFLAGS="-fuse-ld=gold"
 	;;
 "mips64")
 	NDK_ARCH=mips64
 	STATIC_BUILD=0
 	STRIP=mips64el-linux-android-strip
+#	FLAGS="-mlong-calls"
+#	export LDFLAGS="-fuse-ld=gold"
 	;;
 "arm")
 	NDK_ARCH=arm
@@ -87,7 +94,7 @@ echo NDK_ARCH: ${NDK_ARCH}
 echo "Using NDK_ARCH: ${NDK_ARCH}"
 echo "Using STATIC_BUILD: ${STATIC_BUILD}"
 
-export CFLAGS="-fPIC -fPIE"
+export CFLAGS="-fPIC -fPIE ${FLAGS}"
 
 if [ "${BUILD}" = 1 ]; then
 	if [ -z "${NDK}" ]; then
diff --git a/sys/ref.sh b/sys/ref.sh
new file mode 100755
index 0000000000..4655933027
--- /dev/null
+++ b/sys/ref.sh
@@ -0,0 +1,33 @@
+# create .h from .c
+# > git grep R_API open.c |cut -d : -f 2- | sed -e 's, {,;,'
+
+# find files with \r\n
+# > git grep `printf "\r\n"`
+
+# find and replace
+
+case "$1" in
+h)
+	git grep ^R_API $2 |cut -d : -f 2- | sed -e 's, {,;,'
+	;;
+g)
+	git grep "$2"
+	;;
+n)
+	shift
+	while : ; do
+		A="$1"
+		perl -ne 's/\r\n/\n/g;print' < $A > $A._
+		mv $A._ $A
+		shift
+		[ -z "$1" ] && break
+	done
+	;;
+*)
+	echo "Usage sys/ref.sh [action] [...]"
+	echo " h [path]          # print R_API function signatures from C to H"
+	echo " s [sed]           # perform regex on a bunch of files"
+	echo " n [newlines]      # newlines replacements"
+	echo " g [regex] [path]  # perform regex on a bunch of files"
+	;;
+esac