syslog support; bitwise logior and logand functions become variadic.

* Makefile: Use -iquote to restrict our #include search paths from
being processed for #include <...>.  Add syslog.o to OBJS-y if
have_syslog is y.

* configure (have_syslog): New variable, set by detecting syslog API.

* eval.c (eval_init): logand and logior registrations changed to
go to variadic versions. New syslog variables and functions registered.

* lib.c (logandv, logiorv): New functions.

* lib.h (logandv, logiorv): Declared.

* txr.c (main): Call syslog_init.

* syslog.c: New file.

* syslog.h: New file.

* txr.1: Updated.

* txr.vim: Regenerated.

1 files changed, 13 insertions, 0 deletions

diff --git a/arith.c b/arith.c
index b1ae1677..a49fdf0c 100644
--- a/arith.c
+++ b/arith.c
@@ -1803,6 +1803,19 @@ bad3:
   uw_throwf(error_s, lit("ashift: non-integral operand ~s"), a, nao);
 }
 
+val maskv(val bits)
+{
+  val accum = zero;
+
+  for (; bits; bits = cdr(bits)) {
+    val num = car(bits);
+    val mask = ash(one, num);
+    accum = logior(accum, mask);
+  }
+
+  return accum;
+}
+
 void arith_init(void)
 {
   mp_init(&NUM_MAX_MP);