gentoo-overlay/sys-libs/blocksruntime/files/blocksruntime-0_pre20171027-ldflags-soname.patch

--- a/buildlib
+++ b/buildlib
@@ -28,11 +28,13 @@ if [ -n "$shared" ]; then
 			SHLIB="${LIB%.a}.dylib"
 			SHOPT="-dynamiclib -Wl,-all_load"
 			SHOPT2=
+			SONAME=
 			;;
 		*)
 			SHLIB="${LIB%.a}.so"
 			SHOPT="-shared -Wl,-whole-archive"
 			SHOPT2="-Wl,-no-whole-archive"
+			SONAME="-Wl,-soname=${SHLIB}.0"
 			;;
 	esac
 fi
@@ -108,5 +110,5 @@ echo "SRC=$SRC"
 [ -z "$shared" ] ||
 (
 	PS4= && set -ex
-	"$CC" $FPIC $CFLAGS -o "$SHLIB" $SHOPT $LIB $SHOPT2
+	"$CC" $FPIC $CFLAGS $LDFLAGS -o "$SHLIB" $SHOPT $LIB $SHOPT2 ${SONAME}
 ) || exit
--- a/installlib
+++ b/installlib
@@ -91,5 +91,7 @@ docmd "install -d "$DESTDIR"$includedir "$DESTDIR"$libdir"
 docmd "install -m 644 $HEADER "$DESTDIR"$includedir/"
 [ -z "$LIB" ] ||
 docmd "install -m 644 $LIB "$DESTDIR"$libdir/"
-[ -z "$SHLIB" ] ||
+[ -z "$SHLIB" ] || {
 docmd "install -m $SHLIBMODE $SHLIB "$DESTDIR"$libdir/"
+docmd "ln -s $SHLIB "$DESTDIR"$libdir/${SHLIB}.0"
+}