With pkgconfig < 0.28 output is a single space

With pkgconfig = 0.28 output is an empty string,
This breaks the test on the 2 vars

Need to split when
LIB set (ex -lssl -lcrypto)
INC empty (because /usr/include used)

acinclude.m4

@@ -2342,8 +2342,10 @@ AC_DEFUN([PHP_SETUP_OPENSSL],[
       AC_MSG_ERROR([OpenSSL version 0.9.6 or greater required.])
     fi
 
-    if test -n "$OPENSSL_LIBS" && test -n "$OPENSSL_INCS"; then
+    if test -n "$OPENSSL_LIBS"; then
       PHP_EVAL_LIBLINE($OPENSSL_LIBS, $1)
+    fi
+    if test -n "$OPENSSL_INCS"; then
       PHP_EVAL_INCLINE($OPENSSL_INCS)
     fi
   fi