X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=dosish.h;h=58296a4224a6aa7513565c98a9cca8305d6af66a;hb=9e3a2af888982d0a201149cbcdbf3feb6771acb4;hp=7a8b4313f3e258d6a867ff4820aaf34de5df01fc;hpb=e6aa316494fe1e1bc199bd7d6e4d5ebbf7488889;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/dosish.h b/dosish.h
index 7a8b431..58296a4 100644
--- a/dosish.h
+++ b/dosish.h
@@ -1,11 +1,39 @@
 #define ABORT() abort();
 
-#define BIT_BUCKET "\dev\nul"
+#define SH_PATH "/bin/sh"
+
+#ifdef DJGPP
+#define BIT_BUCKET "nul"
+#define OP_BINARY O_BINARY
+void Perl_DJGPP_init();
+#define PERL_SYS_INIT(argcp, argvp) STMT_START {        \
+    Perl_DJGPP_init();    } STMT_END
+#else
 #define PERL_SYS_INIT(c,v)
+#define BIT_BUCKET "\dev\nul"
+#endif
+
 #define PERL_SYS_TERM()
 #define dXSUB_SYS int dummy
 #define TMPPATH "plXXXXXX"
 
+/*
+ * 5.003_07 and earlier keyed on #ifdef MSDOS for determining if we were 
+ * running on DOS, *and* if we had to cope with 16 bit memory addressing 
+ * constraints, *and* we need to have memory allocated as unsigned long.
+ *
+ * with the advent of *real* compilers for DOS, they are not locked together.
+ * MSDOS means "I am running on MSDOS". HAS_64K_LIMIT means "I have 
+ * 16 bit memory addressing constraints".
+ *
+ * if you need the last, try #DEFINE MEM_SIZE unsigned long.
+ */
+#ifdef MSDOS
+ #ifndef DJGPP
+  #define HAS_64K_LIMIT
+ #endif
+#endif
+
 /* USEMYBINMODE
  *	This symbol, if defined, indicates that the program should
  *	use the routine my_binmode(FILE *fp, char iotype) to insure
@@ -27,6 +55,18 @@
  */
 #undef ACME_MESS	/**/
 
+/* ALTERNATE_SHEBANG:
+ *	This symbol, if defined, contains a "magic" string which may be used
+ *	as the first line of a Perl program designed to be executed directly
+ *	by name, instead of the standard Unix #!.  If ALTERNATE_SHEBANG
+ *	begins with a character other then #, then Perl will only treat
+ *	it as a command line if if finds the string "perl" in the first
+ *	word; otherwise it's treated as the first line of code in the script.
+ *	(IOW, Perl won't hand off to another interpreter via an alternate
+ *	shebang sequence that might be legal Perl code.)
+ */
+/* #define ALTERNATE_SHEBANG "#!" / **/
+
 /*
  * fwrite1() should be a routine with the same calling sequence as fwrite(),
  * but which outputs all of the bytes requested as a single stream (unlike