diff -ur picoLisp/lib/gcc.l picoLisp-work/lib/gcc.l
--- picoLisp/lib/gcc.l  Wed Jan 27 22:43:43 2016
+++ picoLisp-work/lib/gcc.l   Tue Feb  2 15:16:40 2016
@@ -22,6 +22,14 @@
                "-W" "-Wimplicit" "-Wreturn-type" "-Wunused" "-Wformat"
                "-Wuninitialized" "-Wstrict-prototypes"
                "-pipe" "-D_GNU_SOURCE" "-D_FILE_OFFSET_BITS=64" (tmp S ".c") ) ) )
+      ("IRIX64" 
+         (quote
+            (apply call L "gcc" "-o" (tmp S)
+               "-shared" 
+               "-O" "-falign-functions" "-fomit-frame-pointer"
+               "-W" "-Wimplicit" "-Wreturn-type" "-Wunused" "-Wformat"
+               "-Wuninitialized" "-Wstrict-prototypes"
+               "-pipe" "-D_GNU_SOURCE" "-D_FILE_OFFSET_BITS=64" (tmp S ".c") ) ) )
       ("AIX"
          (quote
             (apply call L "gcc" "-o" (tmp S)