patch 8.2.2432: libvterm tests are executed even when libtool doesn't work

Problem:    Libvterm tests are executed even when libtool doesn't work.
Solution:   Only run libvterm tests if /usr/bin/gcc exists.
diff --git a/src/version.c b/src/version.c
index 6854c10..dc20c33 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2432,
+/**/
     2431,
 /**/
     2430,