Hi all, I had to make a few edits to src/doc.c src/eval.c src/fns.c and src/lread.c so that S1SCC8 (SunONE Studio 8 C Compiler) would get everything compiled. compiler version string is cc: Sun C 5.5 Patch 112761-05 2003/12/02 Index: doc.c =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/src/doc.c,v retrieving revision 1.32 diff -r1.32 doc.c 392,393c392,393 < /* This function can GC */ < REGISTER Lisp_Object doc = Qnil; --- Index: eval.c =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/src/eval.c,v retrieving revision 1.74 diff -r1.74 eval.c 971,972c971,972 < /* This function can GC */ < REGISTER Lisp_Object val; --- 996,997c996,997 < /* This function can GC */ < REGISTER Lisp_Object val; --- Index: fns.c =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/src/fns.c,v retrieving revision 1.54 diff -r1.54 fns.c 1781,1783c1781,1783 < struct gcpro gcpro1, gcpro2; < REGISTER Lisp_Object prev = Qnil; < REGISTER Lisp_Object tail = list; --- Index: lread.c =================================================================== RCS file: /pack/xemacscvs/XEmacs/xemacs/src/lread.c,v retrieving revision 1.64 diff -r1.64 lread.c 1367c1367 < REGISTER Lisp_Object val = Qnil; --- If you leave this Lisp_Objects as REGISTER then the mesage from S1SCC is "lread.c", line 1386: cannot take address of register: val cc: acomp failed for lread.c cheers, James C. McPherson