File project.diff of Package pciutils

--- pciutils.spec.orig
+++ pciutils.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package pciutils
 #
-# Copyright (c) 2022 SUSE LLC
+# Copyright (c) 2023 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -68,7 +68,7 @@ development using the PCI utilities.
 %autosetup -p1
 
 %build
-%make_build OPT="%{optflags}" PREFIX=%{_prefix} LIBDIR=%{_libdir} SBINDIR=%{_bindir} STRIP="" SHARED="yes"
+make -o %{?_smp_mflags} OPT="%{optflags} -std=gnu99" PREFIX=%{_prefix} LIBDIR=%{_libdir} SBINDIR=%{_bindir} STRIP="" SHARED="yes"
 
 %install
 make install PREFIX=%{buildroot}%{_prefix} SBINDIR=%{buildroot}%{_bindir} \