[gnome-autoar/wip/lantw/autoar-0.2: 2/3] general: Use libtool version info to provide soname

[Ting-Wei Lan <lantw src gnome org>]

commit 869e675aeabaa461f8d835a0f202be40025eb65a
Author: Ting-Wei Lan <lantw src gnome org>
Date:   Mon Jan 16 06:16:58 2017 +0800

    general: Use libtool version info to provide soname
    
    The libtool version info is calculated in configure script, but the
    commit that added code for calculation didn't really use it. Although
    soname doesn't provide much useful functionality becayse we already
    have API versioning and , we still add -version-info to LDFLAGS for all
    libraries in this module.

 Makefile.am  |    6 ++++++
 configure.ac |    2 +-
 2 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index e2b8c0e..6fa210f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -81,6 +81,9 @@ gnome_autoar_libgnome_autoar_@API_VERSION@_la_CFLAGS = \
        -I$(top_builddir)/gnome-autoar          \
        $(AM_CFLAGS)                            \
        $(NULL)
+gnome_autoar_libgnome_autoar_@API_VERSION@_la_LDFLAGS = \
+       -version-info $(LT_VERSION_INFO)        \
+       $(NULL)
 gnome_autoar_libgnome_autoar_@API_VERSION@_la_LIBADD = \
        $(GIO_LIBS)                             \
        $(LIBARCHIVE_LIBS)                      \
@@ -110,6 +113,9 @@ gnome_autoar_libgnome_autoar_gtk_@API_VERSION@_la_CFLAGS = \
        -I$(top_builddir)/gnome-autoar          \
        $(AM_CFLAGS)                            \
        $(NULL)
+gnome_autoar_libgnome_autoar_gtk_@API_VERSION@_la_LDFLAGS = \
+       -version-info $(LT_VERSION_INFO)        \
+       $(NULL)
 gnome_autoar_libgnome_autoar_gtk_@API_VERSION@_la_LIBADD = \
        $(GTK_LIBS)                             \
        $(top_builddir)/gnome-autoar/libgnome-autoar-@API_VERSION@.la   \
diff --git a/configure.ac b/configure.ac
index 060aa90..2298e68 100644
--- a/configure.ac
+++ b/configure.ac
@@ -29,7 +29,7 @@ m4_define([lt_current], [m4_eval(binary_age - interface_age)])
 m4_define([lt_revision], [interface_age])
 m4_define([lt_age], [m4_eval(binary_age - interface_age)])
 
-AC_SUBST([LIBGNOME_AUTOAR_LT_VERSION], [lt_current:lt_revision:lt_age])
+AC_SUBST([LT_VERSION_INFO], [lt_current:lt_revision:lt_age])
 AC_SUBST([API_VERSION], [0.2])
 AC_SUBST([API_VERSION_U], [AS_TR_SH([$API_VERSION])])