diff --git a/4ti2.changes b/4ti2.changes
index 2653452..7b9a858 100644
--- a/4ti2.changes
+++ b/4ti2.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Apr 17 08:05:30 UTC 2013 - jengelh@inai.de
+
+- Combine shared library packages lib4ti2{gmp0,int32-0,int64-0}
+  as they are updated in lockstep
+
 -------------------------------------------------------------------
 Fri Dec  7 09:02:56 UTC 2012 - jengelh@inai.de
 
diff --git a/4ti2.spec b/4ti2.spec
index ec2d006..208a278 100644
--- a/4ti2.spec
+++ b/4ti2.spec
@@ -43,29 +43,16 @@ BuildRequires:  xz
 4ti2 is a collection of programs that compute and solve algebraic,
 geometric and combinational problems on linear spaces.
 
-%package -n lib4ti2gmp0
-Summary:        GMP-using computation library for Gröbner bases with 4ti2
+%package -n lib4ti2-0
+Summary:        Library for computation of Gröbner bases with 4ti2
 Group:          System/Libraries
 
-%description -n lib4ti2gmp0
-This package contains the 4ti2 program library and supports arbitrary
-precision integers through use of GNU MP.
-
-%package -n lib4ti2int32-0
-Summary:        32-bit wide integer-using computation library for Gröbner bases with 4ti2
-Group:          System/Libraries
-
-%description -n lib4ti2int32-0
-This package contains the 4ti2 program library and supports integer
-precision of 32 bits.
-
-%package -n lib4ti2int64-0
-Summary:        64-bit wide integer-using computation library for Gröbner bases with 4ti2
-Group:          System/Libraries
-
-%description -n lib4ti2int64-0
-This package contains the 4ti2 program library and supports integer
-precision of 64 bits.
+%description -n lib4ti2-0
+This package contains the 4ti2 program library, which comes in three
+flavors:
+- 32-bit precision integers
+- 64-bit precision integers
+- arbitrary precision integer support through use of GNU MP
 
 %package -n libzsolve0
 Summary:        Library for solving linear systems over integers for 4ti2
@@ -78,9 +65,7 @@ integers (\mathbb{Z}).
 %package devel
 Summary:        Development files for 4ti2
 Group:          Development/Libraries/C and C++
-Requires:       lib4ti2gmp0 = %version
-Requires:       lib4ti2int32-0 = %version
-Requires:       lib4ti2int64-0 = %version
+Requires:       lib4ti2-0 = %version
 Requires:       libzsolve0 = %version
 
 %description devel
@@ -98,7 +83,8 @@ if [ ! -e libtool ]; then
 	# libtool is created.
 	cp "$(which libtool)" ./;
 fi;
-%configure --enable-shared --disable-static --includedir="%_includedir/%name"
+%configure --enable-shared --disable-static \
+	--includedir="%_includedir/pkg/%name"
 make %{?_smp_mflags};
 
 %install
@@ -112,12 +98,8 @@ for i in 4ti2*; do
 	ln -s "%_libexecdir/%name/$i" "$b/%_bindir/$i";
 done;
 
-%post   -n lib4ti2gmp0 -p /sbin/ldconfig
-%postun -n lib4ti2gmp0 -p /sbin/ldconfig
-%post   -n lib4ti2int32-0 -p /sbin/ldconfig
-%postun -n lib4ti2int32-0 -p /sbin/ldconfig
-%post   -n lib4ti2int64-0 -p /sbin/ldconfig
-%postun -n lib4ti2int64-0 -p /sbin/ldconfig
+%post   -n lib4ti2-0 -p /sbin/ldconfig
+%postun -n lib4ti2-0 -p /sbin/ldconfig
 %post   -n libzsolve0 -p /sbin/ldconfig
 %postun -n libzsolve0 -p /sbin/ldconfig
 
@@ -125,18 +107,12 @@ done;
 %defattr(-,root,root)
 %_bindir/4ti2*
 %_libexecdir/%name
-%doc doc/*
+%doc COPYING doc/*
 
-%files -n lib4ti2gmp0
+%files -n lib4ti2-0
 %defattr(-,root,root)
 %_libdir/lib4ti2gmp.so.0*
-
-%files -n lib4ti2int32-0
-%defattr(-,root,root)
 %_libdir/lib4ti2int32.so.0*
-
-%files -n lib4ti2int64-0
-%defattr(-,root,root)
 %_libdir/lib4ti2int64.so.0*
 
 %files -n libzsolve0
@@ -145,7 +121,7 @@ done;
 
 %files devel
 %defattr(-,root,root)
-%_includedir/4ti2
+%_includedir/pkg/
 %_libdir/lib*.so
 
 %changelog