[libexif-cvs] libexif configure.ac,1.13,1.14

[Hubert F. <hfi...@us...>]

Update of /cvsroot/libexif/libexif
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv8530

Modified Files:
	configure.ac 
Log Message:
fix a mistake in the interpretation of CURRENT:AGE:REVISION meaning that could
lead to mis-versioning of the libraries.


Index: configure.ac
===================================================================
RCS file: /cvsroot/libexif/libexif/configure.ac,v
retrieving revision 1.13
retrieving revision 1.14
diff -u -p -d -r1.13 -r1.14
--- configure.ac	27 Dec 2005 21:30:11 -0000	1.13
+++ configure.ac	4 Jan 2006 01:41:03 -0000	1.14
@@ -30,20 +30,27 @@ dnl         http://navi.cx/~mike/writing
 dnl   * libtool.info chapter "Versioning"
 dnl ---------------------------------------------------------------------------
 dnl Versioning:
+dnl  - CURRENT (Major):  Increment if the interface has changes. AGE is always
+dnl                      *changed* at the same time.
 dnl  - AGE (Micro):      Increment if any interfaces have been added; set to 0
 dnl		         if any interfaces have been removed. Removal has 
 dnl                      precedence over adding, so set to 0 if both happened.
+dnl                      It denotes upward compatibility.
 dnl  - REVISION (Minor): Increment any time the source changes; set to 
 dnl			 0 if you incremented CURRENT.
-dnl  - CURRENT (Major):  Increment if the interface has changes or removals.
+dnl
+dnl  To summarize. Any interface *change* increment CURRENT. If that interface
+dnl  change does not break upward compatibility (ie it is an addition), 
+dnl  increment AGE, Otherwise AGE is reset to 0. If CURRENT has changed, 
+dnl  REVISION is set to 0, otherwise REVISION is incremented.
 dnl ---------------------------------------------------------------------------
-LIBEXIF_AGE=1
-LIBEXIF_REVISION=0
+LIBEXIF_AGE=0
+LIBEXIF_REVISION=1
 LIBEXIF_CURRENT=12
 AC_SUBST([LIBEXIF_AGE])
 AC_SUBST([LIBEXIF_REVISION])
 AC_SUBST([LIBEXIF_CURRENT])
-LIBEXIF_VERSION_INFO=`expr $LIBEXIF_CURRENT + $LIBEXIF_REVISION`:$LIBEXIF_AGE:$LIBEXIF_REVISION
+LIBEXIF_VERSION_INFO=$LIBEXIF_CURRENT:$LIBEXIF_REVISION:$LIBEXIF_AGE
 AC_SUBST([LIBEXIF_VERSION_INFO])
 
 AC_PROG_CC