rework library versioning

Author: JacobBarthelmeh

CMakeLists.txt

@@ -42,16 +42,19 @@ else()
 endif()
 
 # shared library versioning
-# increment if interfaces have been added, removed or changed
-set(LIBTOOL_CURRENT 43)
-# increment if source code has changed  set to zero if current is incremented
-set(LIBTOOL_REVISION 0)
-# increment if interfaces have been added set to zero if interfaces have been
-# removed or changed
-set(LIBTOOL_AGE 1)
+# increment if interfaces have been removed or changed
+set(WOLFSSL_LIBRARY_VERSION_FIRST 42)
 
-math(EXPR LIBTOOL_SO_VERSION "${LIBTOOL_CURRENT} - ${LIBTOOL_AGE}")
-set(LIBTOOL_FULL_VERSION ${LIBTOOL_SO_VERSION}.${LIBTOOL_AGE}.${LIBTOOL_REVISION})
+# increment if interfaces have been added
+# set to zero if WOLFSSL_LIBRARY_VERSION_FIRST is incremented
+set(WOLFSSL_LIBRARY_VERSION_SECOND 1)
+
+# increment if source code has changed
+# set to zero if WOLFSSL_LIBRARY_VERSION_FIRST is incremented or
+# WOLFSSL_LIBRARY_VERSION_SECOND is incremented
+set(WOLFSSL_LIBRARY_VERSION_THIRD 0)
+
+set(LIBTOOL_FULL_VERSION ${WOLFSSL_LIBRARY_VERSION_FIRST}.${WOLFSSL_LIBRARY_VERSION_SECOND}.${WOLFSSL_LIBRARY_VERSION_THIRD})
 
 set(WOLFSSL_DEFINITIONS)
 set(WOLFSSL_LINK_LIBS)
@@ -2210,7 +2213,7 @@ endif()
 
 set_target_properties(wolfssl
     PROPERTIES
-        SOVERSION ${LIBTOOL_SO_VERSION}
+        SOVERSION ${WOLFSSL_LIBRARY_VERSION_FIRST}
         VERSION ${LIBTOOL_FULL_VERSION}
 )
 

configure.ac

@@ -45,22 +45,20 @@ AC_SUBST([WOLFSSL_CONFIG_ARGS])
 
 # shared library versioning
 # The three numbers in the libwolfssl.so.*.*.* file name. Unfortunately
-# these numbers don't always line up nicely with the library version.
+
+# increment if interfaces have been removed or changed
 WOLFSSL_LIBRARY_VERSION_FIRST=42
+
+# increment if interfaces have been added
+# set to zero if WOLFSSL_LIBRARY_VERSION_FIRST is incremented
 WOLFSSL_LIBRARY_VERSION_SECOND=1
+
+# increment if source code has changed
+# set to zero if WOLFSSL_LIBRARY_VERSION_FIRST is incremented or
+# WOLFSSL_LIBRARY_VERSION_SECOND is incremented
 WOLFSSL_LIBRARY_VERSION_THIRD=0
-WOLFSSL_LIBRARY_VERSION=43:0:1
-#                        | | |
-#                 +------+ | +---+
-#                 |        |     |
-#                current:revision:age
-#                 |        |     |
-#                 |        |     +- increment if interfaces have been added
-#                 |        |        set to zero if interfaces have been removed
-#                 |        |        or changed
-#                 |        +- increment if source code has changed
-#                 |           set to zero if current is incremented
-#                 +- increment if interfaces have been added, removed or changed
+
+WOLFSSL_LIBRARY_VERSION=${WOLFSSL_LIBRARY_VERSION_FIRST}:${WOLFSSL_LIBRARY_VERSION_SECOND}:${WOLFSSL_LIBRARY_VERSION_THIRD}
 AC_SUBST([WOLFSSL_LIBRARY_VERSION_FIRST])
 AC_SUBST([WOLFSSL_LIBRARY_VERSION_SECOND])
 AC_SUBST([WOLFSSL_LIBRARY_VERSION_THIRD])

src/include.am

@@ -32,7 +32,7 @@ if !BUILD_NO_LIBRARY
 lib_LTLIBRARIES+= src/libwolfssl@LIBSUFFIX@.la
 endif
 src_libwolfssl@LIBSUFFIX@_la_SOURCES =
-src_libwolfssl@LIBSUFFIX@_la_LDFLAGS = ${AM_LDFLAGS} -no-undefined -version-info ${WOLFSSL_LIBRARY_VERSION}
+src_libwolfssl@LIBSUFFIX@_la_LDFLAGS = ${AM_LDFLAGS} -no-undefined -version-number ${WOLFSSL_LIBRARY_VERSION}
 src_libwolfssl@LIBSUFFIX@_la_LIBADD = $(LIBM) $(LIB_ADD) $(LIB_STATIC_ADD)
 src_libwolfssl@LIBSUFFIX@_la_CFLAGS = -DBUILDING_WOLFSSL $(AM_CFLAGS) -DLIBWOLFSSL_GLOBAL_EXTRA_CFLAGS="\" $(EXTRA_CFLAGS)\""
 src_libwolfssl@LIBSUFFIX@_la_CPPFLAGS = -DBUILDING_WOLFSSL $(AM_CPPFLAGS)