allow installing the libraries without the drivers (#736310)

split off drivers into -drivers-scanners, rename -libs-gphoto2 to
-drivers-cameras

sane-backends.spec

@@ -1,7 +1,7 @@
 Summary: Scanner access software
 Name: sane-backends
 Version: 1.0.22
-Release: 3%{?dist}
+Release: 4%{?dist}
 # lib/ is LGPLv2+, backends are GPLv2+ with exceptions
 # Tools are GPLv2+, docs are public domain
 # see LICENSE for details
@@ -37,6 +37,8 @@ BuildRequires: gettext
 BuildRequires: gphoto2-devel
 Requires: udev >= 143
 Requires: sane-backends-libs%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
+Obsoletes: sane-backends < 1.0.22-4
+Conflicts: sane-backends < 1.0.22-4
 
 %description
 Scanner Access Now Easy (SANE) is a universal scanner interface.  The
@@ -44,23 +46,6 @@ SANE application programming interface (API) provides standardized
 access to any raster image scanner hardware (flatbed scanner,
 hand-held scanner, video and still cameras, frame-grabbers, etc.).
 
-%package devel
-Summary: SANE development toolkit
-Group: Development/Libraries
-Requires: sane-backends = %{version}-%{release}
-Requires: libusb-devel
-Requires: libieee1284-devel
-Requires: libjpeg-devel
-Requires: libtiff-devel
-Requires: pkgconfig
-Requires: gphoto2-devel
-Requires: sane-backends-libs%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
-Requires: sane-backends-libs-gphoto2%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
-
-%description devel
-This package contains libraries and header files for writing Scanner Access Now
-Easy (SANE) modules.
-
 %package libs
 Summary: SANE libraries
 Group: System Environment/Libraries
@@ -73,14 +58,44 @@ Provides: sane-backends-docs = %{?epoch:%{epoch}:}%{version}-%{release}
 This package contains the SANE libraries which are needed by applications that
 want to access scanners.
 
-%package libs-gphoto2
+%package devel
-Summary: SANE libraries for gphoto2
+Summary: SANE development toolkit
-Group: System Environment/Libraries
+Group: Development/Libraries
+Requires: sane-backends = %{?epoch:%{epoch}:}%{version}-%{release}
 Requires: sane-backends-libs%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
+Requires: libusb-devel
+Requires: libieee1284-devel
+Requires: libjpeg-devel
+Requires: libtiff-devel
+Requires: pkgconfig
 
-%description libs-gphoto2
+%description devel
-This package contains the SANE libraries which are needed by applications that
+This package contains libraries and header files for writing Scanner Access Now
-want to access digital cameras.
+Easy (SANE) modules.
+
+%package drivers-scanners
+Summary: SANE backend drivers for scanners
+Group: System Environment/Libraries
+Requires: sane-backends = %{?epoch:%{epoch}:}%{version}-%{release}
+Requires: sane-backends-libs%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
+Obsoletes: sane-backends < 1.0.22-4
+Conflicts: sane-backends < 1.0.22-4
+
+%description drivers-scanners
+This package contains backend drivers to access scanner hardware through SANE.
+
+%package drivers-cameras
+Summary: Scanner backend drivers for digital cameras
+Group: System Environment/Libraries
+Requires: sane-backends = %{?epoch:%{epoch}:}%{version}-%{release}
+Requires: sane-backends-libs%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
+Obsoletes: sane-backends-libs-gphoto2 < 1.0.22-4
+Conflicts: sane-backends-libs-gphoto2 < 1.0.22-4
+Provides: sane-libs-gphoto2 = %{?epoch:%{epoch}:}%{version}-%{release}
+Provides: sane-libs-gphoto2%{?_isa} = %{?epoch:%{epoch}:}%{version}-%{release}
+
+%description drivers-cameras
+This package contains backend drivers to access digital cameras through SANE.
 
 %prep
 %setup -q
@@ -126,7 +141,6 @@ install -m 0644 tools/sane-backends.pc %{buildroot}%{_libdir}/pkgconfig/
 
 %find_lang %name
 
-
 %clean
 rm -rf %{buildroot}
 
@@ -147,20 +161,13 @@ rm -rf %{buildroot}
 
 %doc %{_docdir}/*
 %exclude %{_mandir}/man1/sane-config.1*
-
 %{_mandir}/*/*
 
+%dir %{_libdir}/sane
+
 %files libs
 %defattr(-, root, root)
 %{_libdir}/libsane*.so.*
-%dir %{_libdir}/sane
-%{_libdir}/sane/*.so*
-
-%exclude %{_libdir}/sane/*gphoto2.so*
-
-%files libs-gphoto2
-%defattr(-, root, root)
-%{_libdir}/sane/*gphoto2.so.*
 
 %files devel
 %defattr(-,root,root)
@@ -170,7 +177,20 @@ rm -rf %{buildroot}
 %{_libdir}/libsane*.so
 %{_libdir}/pkgconfig/sane-backends.pc
 
+%files drivers-scanners
+%defattr(-, root, root)
+%{_libdir}/sane/*.so*
+%exclude %{_libdir}/sane/*gphoto2.so*
+
+%files drivers-cameras
+%defattr(-, root, root)
+%{_libdir}/sane/*gphoto2.so.*
+
 %changelog
+* Thu Sep 15 2011 Nils Philippsen <nils@redhat.com> - 1.0.22-4
+- allow installing the libraries without the drivers (#736310): split off
+  drivers into -drivers-scanners, rename -libs-gphoto2 to -drivers-cameras
+
 * Tue May 10 2011 Nils Philippsen <nils@redhat.com> - 1.0.22-3
 - fix detection/handling of USB devices in xerox_mfp (#702983)