It is not "You Em Ef Pack".
%package devel
-Summary: Header files for umfpack library
-Summary(pl.UTF-8): Pliki nagłówkowe biblioteki umfpack
+Summary: Header files for UMFPACK library
+Summary(pl.UTF-8): Pliki nagłówkowe biblioteki UMFPACK
Group: Development/Libraries
Requires: %{name} = %{version}-%{release}
Requires: UFconfig
%description devel
-Header files for umfpack library.
+Header files for UMFPACK library.
%description devel -l pl.UTF-8
-Pliki nagłówkowe biblioteki umfpack.
+Pliki nagłówkowe biblioteki UMFPACK.
%package static
-Summary: Static umfpack library
-Summary(pl.UTF-8): Statyczna biblioteka umfpack
+Summary: Static UMFPACK library
+Summary(pl.UTF-8): Statyczna biblioteka UMFPACK
Group: Development/Libraries
Requires: %{name}-devel = %{version}-%{release}
%description static
-Static umfpack library.
+Static UMFPACK library.
%description static -l pl.UTF-8
-Statyczna biblioteka umfpack.
+Statyczna biblioteka UMFPACK.
%prep
%setup -q -n %{name}