Don't include zlib header dir if it is not defined.

[thirdparty/openssl.git] / util / mk1mf.pl

diff --git a/util/mk1mf.pl b/util/mk1mf.pl
index 606e9209ccf8407854e63e2218928ed299ddcf34..7f901ee934a73b7831fd63c27b822f153902883e 100755 (executable)
--- a/util/mk1mf.pl
+++ b/util/mk1mf.pl
@@ -292,7 +292,7 @@ for (;;)
                { $cflags .= " $val";}
 
        if ($key eq "ZLIB_INCLUDE")
-               { $cflags .= " -I$val";}
+               { $cflags .= " $val" if $val ne "";}
 
        if ($key eq "LIBZLIB")
                { $zlib_lib = "$val" if $val ne "";}