diff --git a/configure.in b/configure.in
index 1d50e7790d..1810a1136b 100644
--- a/configure.in
+++ b/configure.in
@@ -131,6 +131,9 @@ AC_ARG_ENABLE(64,
 if test "x${ax_cv_c_compiler_vendor}"  =  "xsun" ; then
     APR_ADDTO(SWITCH_AM_CFLAGS, -KPIC)
     APR_ADDTO(SWITCH_AM_CFLAGS, -DPIC)
+    APR_ADDTO(SWITCH_AM_CFLAGS, -erroff=E_END_OF_LOOP_CODE_NOT_REACHED)
+    APR_ADDTO(SWITCH_AM_CFLAGS, -errtags=yes)
+    APR_ADDTO(SWITCH_AM_CXXFLAGS, -errtags=yes)
     APR_ADDTO(SWITCH_AM_CXXFLAGS, -KPIC)
     APR_ADDTO(SWITCH_AM_CXXFLAGS, -DPIC)
     APR_ADDTO(SWITCH_AM_CXXFLAGS, "-features=extensions")