diff --git a/gifsicle.changes b/gifsicle.changes
index e3be3f0..7cfb991 100644
--- a/gifsicle.changes
+++ b/gifsicle.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Jan 24 14:39:33 UTC 2016 - mpluskal@suse.com
+
+- Use macro for configure
+- Use correct obsoletes/provides
+
 -------------------------------------------------------------------
 Fri Jan 22 16:01:36 CET 2016 - manfred99@gmx.ch
 - update license indication in the spec file: it is GPL-2.0 (only)
diff --git a/gifsicle.spec b/gifsicle.spec
index 2b2c4c8..ff25468 100644
--- a/gifsicle.spec
+++ b/gifsicle.spec
@@ -24,8 +24,8 @@ License:        GPL-2.0
 Group:          Productivity/Graphics/Other
 Url:            https://www.lcdf.org/gifsicle/
 Source:         https://www.lcdf.org/gifsicle/%{name}-%{version}.tar.gz
-Conflicts:      ungifsicle
-Obsoletes:      ungifsicle
+Obsoletes:      ungifsicle < %{version}
+Provides:       ungifsicle = %{version}
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 %if 0%{?suse_version} == 1110
 BuildRequires:  xorg-x11-libX11
@@ -59,14 +59,14 @@ GIF-manipulating software.
 %setup -q
 
 %build
-./configure
-make %{?_smp_mflags} CFLAGS="%{optflags}"
+%configure
+make %{?_smp_mflags}
 
 %check
 make check
 
 %install
-make install prefix=%{buildroot}%{_prefix}
+make install DESTDIR=%{buildroot}
 
 %files
 %defattr(-,root,root)
@@ -74,8 +74,8 @@ make install prefix=%{buildroot}%{_prefix}
 %{_bindir}/gifdiff
 %{_bindir}/gifsicle
 %{_bindir}/gifview
-%{_mandir}/man1/gifdiff.1.gz
-%{_mandir}/man1/gifsicle.1.gz
-%{_mandir}/man1/gifview.1.gz
+%{_mandir}/man1/gifdiff.1%{ext_man}
+%{_mandir}/man1/gifsicle.1%{ext_man}
+%{_mandir}/man1/gifview.1%{ext_man}
 
 %changelog