Use pkgconfig for BuildRequires

Additinally, simplify .la file removal, use autosetup, and remove some
unused dependencies.

GConf2.spec

@@ -30,22 +30,20 @@ Patch2: gconf-3.2.6-gconf-engine_key_is_writable.patch
 Patch99: workaround-crash.patch
 Patch100: pkill-hack.patch
 
-BuildRequires: libxml2-devel >= %{libxml2_version}
-BuildRequires: libxslt-devel
-BuildRequires: glib2-devel >= %{glib2_version}
-BuildRequires: gtk-doc >= 0.9
-BuildRequires: pkgconfig >= 0.14
 BuildRequires: gettext
+BuildRequires: gtk-doc >= 0.9
 BuildRequires: intltool
+BuildRequires: make
+BuildRequires: pkgconfig(dbus-glib-1) >= 0.8
+BuildRequires: pkgconfig(gio-2.0) >= %{glib2_version}
+BuildRequires: pkgconfig(gobject-introspection-1.0) >= 0.6.7
+BuildRequires: pkgconfig(libxml-2.0) >= %{libxml2_version}
 %if 0%{?defaults_service}
-BuildRequires: polkit-devel >= 0.92
+BuildRequires: pkgconfig(polkit-gobject-1) >= 0.92
 %endif
-BuildRequires: dbus-glib-devel >= 0.8
-BuildRequires: gobject-introspection-devel >= 0.6.7
 BuildRequires: autoconf automake libtool
 # we need to do python shebang mangling using pathfix.py
 BuildRequires: python3-devel
-BuildRequires: make
 
 %if 0%{?defaults_service}
 Requires: dbus
@@ -64,13 +62,7 @@ support workgroup administration.
 
 %package devel
 Summary: Headers and libraries for GConf development
-Requires: %{name} = %{version}-%{release}
-Requires: libxml2-devel >= %{libxml2_version}
-Requires: glib2-devel >= %{glib2_version}
-# we install a pc file
-Requires: pkgconfig
-# we install an automake macro
-Requires: automake
+Requires: %{name}{?_isa} = %{version}-%{release}
 Conflicts: GConf2-dbus-devel
 
 %description devel
@@ -78,15 +70,9 @@ GConf development package. Contains files needed for doing
 development using GConf.
 
 %prep
-%setup -q -n GConf-%{version}
-%patch0 -p1 -b .gettext
-%patch1 -p1 -b .drop-spew
-%patch2 -p1 -b .abi-break
-
-%patch99 -p1 -b .workaround-crash
-%patch100 -p1 -b .pkill-hack
+%autosetup -p1 -n GConf-%{version}
 
-autoreconf -i -f
+autoreconf --force --install
 
 2to3 --write --nobackup gsettings/gsettings-schema-convert
 pathfix.py -pni "%{__python3} %{py3_shbang_opts}" . gsettings/gsettings-schema-convert
@@ -95,30 +81,28 @@ pathfix.py -pni "%{__python3} %{py3_shbang_opts}" . gsettings/gsettings-schema-c
 %configure --disable-static \
       %{?defaults_service:--enable-defaults-service} \
       %{!?defaults_service:--disable-defaults-service} \
-      --disable-orbit --without-openldap --with-gtk=3.0
+      --disable-orbit --without-openldap
 
 # drop unneeded direct library deps with --as-needed
 # libtool doesn't make this easy, so we do it the hard way
 sed -i -e 's/ -shared / -Wl,-O1,--as-needed\0 /g' -e 's/    if test "$export_dynamic" = yes && test -n "$export_dynamic_flag_spec"; then/      func_append compile_command " -Wl,-O1,--as-needed"\n      func_append finalize_command " -Wl,-O1,--as-needed"\n\0/' libtool
 
-make
+%make_build
 
 %install
-make install DESTDIR=$RPM_BUILD_ROOT
+%make_install
 
-mkdir -p $RPM_BUILD_ROOT%{_sysconfdir}/gconf/schemas
-mkdir -p $RPM_BUILD_ROOT%{_sysconfdir}/gconf/gconf.xml.system
-mkdir -p $RPM_BUILD_ROOT%{_rpmconfigdir}/macros.d/
-mkdir -p $RPM_BUILD_ROOT%{_localstatedir}/lib/rpm-state/gconf
-mkdir -p $RPM_BUILD_ROOT%{_datadir}/GConf/gsettings
+mkdir -p %{buildroot}%{_sysconfdir}/gconf/schemas
+mkdir -p %{buildroot}%{_sysconfdir}/gconf/gconf.xml.system
+mkdir -p %{buildroot}%{_rpmconfigdir}/macros.d/
+mkdir -p %{buildroot}%{_localstatedir}/lib/rpm-state/gconf
+mkdir -p %{buildroot}%{_datadir}/GConf/gsettings
 
-install -p -m 644 %{SOURCE1} $RPM_BUILD_ROOT%{_rpmconfigdir}/macros.d/
+install -p -m 644 %{SOURCE1} %{buildroot}%{_rpmconfigdir}/macros.d/
 
-rm -f $RPM_BUILD_ROOT%{_libdir}/*.la
-rm -f $RPM_BUILD_ROOT%{_libdir}/GConf/2/*.la
-rm -f $RPM_BUILD_ROOT%{_libdir}/gio/modules/*.la
+find %{buildroot} -name "*.la" -type f -delete
 
-mkdir -p $RPM_BUILD_ROOT%{_datadir}/GConf/gsettings
+mkdir -p %{buildroot}%{_datadir}/GConf/gsettings
 
 %find_lang %name
 
@@ -182,6 +166,7 @@ fi
 %changelog
 * Fri Jan 07 2022 David King <amigadave@amigadave.com> - 3.2.6-32
 - Update URL (#2036776)
+- Use pkgconfig for BuildRequires
 
 * Wed Jul 21 2021 Fedora Release Engineering <releng@fedoraproject.org> - 3.2.6-31
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild