Proper soversion handling

.gitignore

@@ -1,6 +1,7 @@
 *.o
 *.a
 *.so
+*.so.*
 *.d
 *.swp
 .DS_Store

Makefile.conf

@@ -7,13 +7,15 @@ HERE:=$(dir $(lastword $(MAKEFILE_LIST)))
 
 BUILD_ON:=$(shell uname)
 
+SOVERSION=2.1.22
+
 ifeq ($(BUILD_ON),OS/390)
 TARGETS=libpEpAdapter.a libpEpAdapter.so
 SO_CFLAGS = -W "l,xplink,dll" -W "c,float(ieee),xplink,dll,exportall"
 CPPFLAGS += -W "l,xplink,dll" -W "c,float(ieee),xplink,dll,exportall"
 else ifeq ($(BUILD_ON),Linux)
-TARGETS=libpEpAdapter.a libpEpAdapter.so
-SO_CFLAGS = -shared -Wl,-soname,libpEpAdapter.so.1
+TARGETS=libpEpAdapter.a libpEpAdapter.so.$(SOVERSION)
+SO_CFLAGS = -shared -Wl,-soname,libpEpAdapter.so.$(SOVERSION)
 else
 TARGETS=libpEpAdapter.a
 endif

src/Makefile

@@ -31,7 +31,7 @@ endif
 libpEpAdapter.a: $(OBJECTS)
 	$(AR) -rc $@ $^
 
-libpEpAdapter.so: $(OBJECTS)
+libpEpAdapter.so.$(SOVERSION): $(OBJECTS)
 	$(CXX) $(SO_CFLAGS) -o $@ $^ $(LDLIBS) -lpEpEngine -lpEpMIME -lsequoia_ffi -lsequoia_openpgp_ffi
 
 all: $(TARGETS)