libs: add some missing post 5.2 functions we encountered

These look worth adding to libc

diff --git a/Library/libs/API.list b/Library/libs/API.list
index 0695ba2..0268c32 100644 (file)
--- a/Library/libs/API.list
+++ b/Library/libs/API.list
@@ -295,3 +295,12 @@ write                      CODE
 y0                     CODE
 y1                     CODE
 yn                     CODE
+
+
+Post 5.2 the following routines have been encountered along the way that
+are used by apps
+
+mktime                 MISSING
+psignal                        MISSING
+strsignal              MISSING
+