gentoo-overlay/dev-util/bdelta/files/bdelta-0.3.1-soname.patch

diff --git a/src/Makefile b/src/Makefile
index 65fb88d..3b4a261 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -3,6 +3,7 @@ PREFIX   ?= /usr
 BINDIR   ?= $(PREFIX)/bin
 LIBDIR   ?= ${PREFIX}/lib
 CXXFLAGS += -O2
+DYLIB_LDFLAGS ?= -Wl,-soname,libbdelta.so
 
 ifeq ($(shell uname -s),Darwin)
 	SHAREDLIB := libbdelta.dylib
@@ -19,7 +20,7 @@ libbdelta.a: libbdelta.cpp compatibility.h checksum.h file.h
 	$(AR) rs $@ $<.o
 
 libbdelta.so: libbdelta.cpp compatibility.h checksum.h file.h
-	$(CXX) -shared -fPIC $(CXXFLAGS) $(LDFLAGS) $< -o $@
+	$(CXX) -shared -fPIC $(CXXFLAGS) $(LDFLAGS) $(DYLIB_LDFLAGS) $< -o $@
 
 libbdelta.dylib: libbdelta.cpp compatibility.h checksum.h file.h
 	$(CXX) -dynamiclib $(CXXFLAGS) $< -o $@