diff --git a/bison.changes b/bison.changes
index 8e938f7..a5c0ef7 100644
--- a/bison.changes
+++ b/bison.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Oct  2 09:27:28 UTC 2018 - Martin Pluskal <mpluskal@suse.com>
+
+- Use profile guided optimization (PGO) when building
+
 -------------------------------------------------------------------
 Tue Oct 2 05:28:01 UTC 2018 - sean@suspend.net
 
diff --git a/bison.spec b/bison.spec
index 0122099..de7e3e0 100644
--- a/bison.spec
+++ b/bison.spec
@@ -45,12 +45,21 @@ Bison is a parser generator similar to yacc(1).
 %setup -q
 
 %build
-%configure --disable-silent-rules \
-           --disable-rpath \
-           --docdir=%{_docdir}/%{name} \
-           gl_cv_func_printf_directive_n=yes \
-           gl_cv_func_printf_infinite_long_double=yes
-make %{?_smp_mflags}
+%configure \
+  --disable-silent-rules \
+  --disable-rpath \
+  --enable-nls \
+  --docdir=%{_docdir}/%{name} \
+  gl_cv_func_printf_directive_n=yes \
+  gl_cv_func_printf_infinite_long_double=yes
+%if 0%{?do_profiling}
+  make %{?_smp_mflags} CFLAGS="%{optflags} %{cflags_profile_generate}" V=1
+  make %{?_smp_mflags} CFLAGS="%{optflags} %{cflags_profile_generate}" check
+  make %{?_smp_mflags} clean
+  make %{?_smp_mflags} CFLAGS="%{optflags} %{cflags_profile_feedback}" V=1
+%else
+  make %{?_smp_mflags} CFLAGS="%{optflags}"
+%endif
 
 %check
 make %{?_smp_mflags} check