diff --git a/beep.spec b/beep.spec
index d0004c0..32a03fa 100644
--- a/beep.spec
+++ b/beep.spec
@@ -84,20 +84,19 @@ sed -i 's|^\.\\" \(\.BR .*\)README.Distro\(.*\)|\1README.fedora\2|' beep.1.in &&
 
 
 %build
-make %{?_smp_mflags} COMPILERS=gcc CFLAGS_gcc="-Wall -Wextra -std=gnu99 -pedantic -Werror ${RPM_OPT_FLAGS}" LDFLAGS="${RPM_LD_FLAGS}" CPPFLAGS_gcc=""
+make %{?_smp_mflags} COMPILERS=gcc COMPILER_gcc=gcc COMPILER_clang=false CPPFLAGS_gcc="" CFLAGS_gcc="-std=gnu99 -pedantic -Wall -Wextra -Werror %{build_cflags}" LDFLAGS_gcc="%{build_ldflags}" prefix=%{_prefix} bindir=%{_bindir} pkgdocdir=%{_pkgdocdir}
 
 
 %install
-rm -rf "$RPM_BUILD_ROOT"
-ls -l "/usr/share/doc" ||:
-make install DESTDIR="$RPM_BUILD_ROOT" COMPILERS=gcc CFLAGS_gcc="-Wall -Wextra -std=gnu99 -pedantic -Werror ${RPM_OPT_FLAGS}" LDFLAGS="${RPM_LD_FLAGS}" CPPFLAGS_gcc=""
+rm -rf "%{buildroot}"
+make install DESTDIR="%{buildroot}" COMPILER_gcc=false COMPILER_clang=false CPPFLAGS_gcc="" CFLAGS_gcc="-std=gnu99 -pedantic -Wall -Wextra -Werror %{build_cflags}" LDFLAGS_gcc="%{build_ldflags}" prefix=%{_prefix} bindir=%{_bindir} pkgdocdir=%{_pkgdocdir}
 
-install -d -m 0755              "$RPM_BUILD_ROOT%{_sysconfdir}/modprobe.d/"
-install -p -m 0644 "%{SOURCE4}" "$RPM_BUILD_ROOT%{_sysconfdir}/modprobe.d/beep.conf"
+install -d -m 0755              "%{buildroot}%{_sysconfdir}/modprobe.d/"
+install -p -m 0644 "%{SOURCE4}" "%{buildroot}%{_sysconfdir}/modprobe.d/beep.conf"
 
-install -d -m 0755              "$RPM_BUILD_ROOT%{_udevrulesdir}/"
-install -p -m 0644 "%{SOURCE2}" "$RPM_BUILD_ROOT%{_udevrulesdir}/"
-install -p -m 0644 "%{SOURCE3}" "$RPM_BUILD_ROOT%{_udevrulesdir}/"
+install -d -m 0755              "%{buildroot}%{_udevrulesdir}/"
+install -p -m 0644 "%{SOURCE2}" "%{buildroot}%{_udevrulesdir}/"
+install -p -m 0644 "%{SOURCE3}" "%{buildroot}%{_udevrulesdir}/"
 
 
 %pre