Bugzilla Bug 273336: arguments to the test command should be quoted. r=cls.

nsprpub/configure

@@ -2594,7 +2594,7 @@ EOF
 fi
 
 echo "$ac_t""$ac_cv_visibility_hidden" 1>&6
-    if test $ac_cv_visibility_hidden = yes; then
+    if test "$ac_cv_visibility_hidden" = "yes"; then
         cat >> confdefs.h <<\EOF
 #define HAVE_VISIBILITY_HIDDEN_ATTRIBUTE 1
 EOF
@@ -2623,7 +2623,7 @@ EOF
 fi
 
 echo "$ac_t""$ac_cv_visibility_pragma" 1>&6
-        if test $ac_cv_visibility_pragma = yes; then
+        if test "$ac_cv_visibility_pragma" = "yes"; then
             cat >> confdefs.h <<\EOF
 #define HAVE_VISIBILITY_PRAGMA 1
 EOF

nsprpub/configure.in

@@ -502,7 +502,7 @@ EOF
         fi
         rm -f conftest.[cs]
         ])
-    if test $ac_cv_visibility_hidden = yes; then
+    if test "$ac_cv_visibility_hidden" = "yes"; then
         AC_DEFINE(HAVE_VISIBILITY_HIDDEN_ATTRIBUTE)
         AC_CACHE_CHECK(for visibility pragma support,
             ac_cv_visibility_pragma,
@@ -522,7 +522,7 @@ EOF
             fi
             rm -f conftest.[cs]
             ])
-        if test $ac_cv_visibility_pragma = yes; then
+        if test "$ac_cv_visibility_pragma" = "yes"; then
             AC_DEFINE(HAVE_VISIBILITY_PRAGMA)
             VISIBILITY_FLAGS='-I$(dist_includedir)/system_wrappers -include $(topsrcdir)/config/gcc_hidden.h'
             WRAP_SYSTEM_INCLUDES=1