1 files changed, 3 insertions, 0 deletions
diff --git a/configure b/configure
index cfdbb6cfed..0f466db4aa 100755
--- a/configure
+++ b/configure
@@ -10489,6 +10489,9 @@ then
     $as_echo "#define _REENTRANT 1" >>confdefs.h
 
     posix_threads=yes
+    if test "$ac_sys_system" = "SunOS"; then
+        CFLAGS="$CFLAGS -D_REENTRANT"
+    fi
 elif test "$ac_cv_kpthread" = "yes"
 then
     CC="$CC -Kpthread"