Support old compilers

diff --git a/src/Scripting/NasalSys.cxx b/src/Scripting/NasalSys.cxx
index 471df6a6b7bf694b17a07ec49984b47e70d97bc3..fadca5249f4ee9bd4cc41350c6e0fb5ccdff500a 100644 (file)
--- a/src/Scripting/NasalSys.cxx
+++ b/src/Scripting/NasalSys.cxx
@@ -466,7 +466,7 @@ static naRef f_geodtocart(naContext c, naRef me, int argc, naRef* args)
 static naRef f_geodinfo(naContext c, naRef me, int argc, naRef* args)
 {
 #define HASHSET(s,l,n) naHash_set(matdata, naStr_fromdata(naNewString(c),s,l),n)
-    if(argc < 2 or argc > 3)
+    if(argc < 2 || argc > 3)
         naRuntimeError(c, "geodinfo() expects 2 or 3 arguments: lat, lon [, maxalt]");
     double lat = naNumValue(args[0]).num;
     double lon = naNumValue(args[1]).num;