macOS: avoid unused variable warning when compiled with -DNDEBUG.

diff --git a/src/main-cocoa.m b/src/main-cocoa.m
index 338821d..0623721 100644 (file)
--- a/src/main-cocoa.m
+++ b/src/main-cocoa.m
@@ -1203,6 +1203,7 @@ static int isCharNoPartial(const struct TerminalCell *c)
 
 - (void)assertInvariants
 {
+#ifndef NDEBUG
     const struct TerminalCell *cellsRow = self->cells;
 
     /*
@@ -1351,6 +1352,7 @@ static int isCharNoPartial(const struct TerminalCell *c)
        }
        cellsRow += self.columnCount;
     }
+#endif
 }
 
 + (wchar_t)getBlankChar