🚀 go-pugleaf

oleo 1.2 (gcc 2.3.3 -ansi -pedantic, SunOS 4.1.2) doesn't build properly
because xrdb.c uses alloca without defining it.  The problem is that xrdb.c
doesn't configure alloca properly.  Here's a patch.

*** xrdb.c	1992/12/31 15:54:06	1.2.1.1
--- xrdb.c	1992/12/31 16:04:32	1.2.1.2
***************
*** 19,24 ****
--- 19,43 ----
  /* Coopted for oleo -t 12/92 */
  /* Written by jla, 4/90 */
  
+ #ifndef alloca
+ #ifdef __GNUC__
+ #define alloca __builtin_alloca
+ #else /* __GNUC__ not defined.  */
+ #if HAVE_ALLOCA_H
+ #include <alloca.h>
+ #else /* not HAVE_ALLOCA_H */
+ #if defined (MSDOS) && !defined (__TURBOC__)
+ #include <malloc.h>
+ #else /* not MSDOS, or __TURBOC__ */
+ #if defined(_AIX)
+ #include <malloc.h>
+  #pragma alloca
+ #endif /* not _AIX */
+ #endif /* not MSDOS, or __TURBOC__ */
+ #endif /* not HAVE_ALLOCA_H */
+ #endif /* __GNUC__ not defined.  */
+ #endif /* alloca not defined.  */
+ 
  #ifdef emacs
  #include "config.h"
  #endif