From e452a97e2293f262a2c87f25a0954d0944afa3c5 Mon Sep 17 00:00:00 2001
From: Larry Masinter <LMM@acm.org>
Date: Thu, 24 Dec 2020 01:55:27 +0000
Subject: [PATCH] setup for cygwin (compiles but crashes)

---
 bin/makefile-cygwin.x86_64-x | 54 ++++++++++++++++++++++++++++++++++++
 bin/osversion                |  1 +
 src/timer.c                  |  2 ++
 3 files changed, 57 insertions(+)
 create mode 100644 bin/makefile-cygwin.x86_64-x

diff --git a/bin/makefile-cygwin.x86_64-x b/bin/makefile-cygwin.x86_64-x
new file mode 100644
index 0000000..abcef97
--- /dev/null
+++ b/bin/makefile-cygwin.x86_64-x
@@ -0,0 +1,54 @@
+# Options for Linux, Intel x86_64 and X-Window
+
+#CC = gcc -m64 $(GCC_CFLAGS) -fno-omit-frame-pointer -Wall -Wextra -fno-aggressive-loop-optimizations
+CC = clang -m64 $(CLANG_CFLAGS)
+
+XFILES = $(OBJECTDIR)xmkicon.o \
+	$(OBJECTDIR)xbbt.o \
+	$(OBJECTDIR)dspif.o \
+	$(OBJECTDIR)xinit.o \
+	$(OBJECTDIR)xscroll.o \
+	$(OBJECTDIR)xcursor.o \
+	$(OBJECTDIR)xlspwin.o \
+	$(OBJECTDIR)xrdopt.o \
+	$(OBJECTDIR)xwinman.o
+
+
+XFLAGS = -DXWINDOW -DNOPIXRECT
+
+# This is to make the %$#@! Apollo cc happy
+OEXT = .o
+# OPTFLAGS is normally -O2.
+OPTFLAGS =  -O2 -g3
+DISPOPTFLAGS = -O2 -g3
+FPFLAGS =
+DFLAGS = -DNEW_STORAGE -DLINUX -DAIX -DOLD_CURSOR \
+	-DBYTESWAP -DFORKCOMM -DNOFORN -DLOGINT  $(XFLAGS) \
+	-DRELEASE=351 -DSYSVSIGNALS -DSYSVONLY \
+	-D_GNU_SOURCE
+
+LDFLAGS = -L/usr/X11/lib -lX11 -lc -lm -lcrypt
+LDELDFLAGS =  -L/usr/X11/lib -lX11 -lc -lm -lcrypt
+
+INLINE = # $(SRCDIR)dspSPARC.il
+BITBLTFILE = # $(OBJECTDIR)bbtSPARC.o
+BYTESWAPFILES = $(OBJECTDIR)byteswap.o
+
+OBJECTDIR = ../$(RELEASENAME)/
+
+default	: ../$(OSARCHNAME)/lde 
+
+############
+#
+#	SPECIAL xc.o  for debugging
+#
+############
+$(OBJECTDIR)xc.o:	$(SRCDIR)xc.c $(INCDIR)lispemul.h  $(INCDIR)emlglob.h \
+	 $(INCDIR)address.h \
+	 $(INCDIR)adr68k.h  $(INCDIR)stack.h  $(INCDIR)lspglob.h \
+	 $(INCDIR)lsptypes.h  $(INCDIR)lispmap.h  $(INCDIR)cell.h \
+	 $(INCDIR)initatms.h  $(INCDIR)gcdata.h  \
+	 $(INCDIR)arith.h $(INCDIR)stream.h \
+	 $(INCDIR)tos1defs.h  $(INCDIR)tosret.h \
+	 $(INCDIR)tosfns.h  $(INCDIR)inlineC.h   
+	 $(CC) $(DISPRFLAGS) -UOPDISP  $(SRCDIR)xc.c -I$(INCDIR) -o $(OBJECTDIR)xc.o
diff --git a/bin/osversion b/bin/osversion
index edb4add..4d0cfae 100755
--- a/bin/osversion
+++ b/bin/osversion
@@ -9,6 +9,7 @@ case "$os" in
         *-*-linux*)		echo linux ;;
         *-*-openbsd*)		echo openbsd ;;
         *-*-freebsd*)		echo freebsd ;;
+	*-*-cygwin*)            echo cygwin ;;
 esac
 ### Don't leave the variable set.
 unset os
diff --git a/src/timer.c b/src/timer.c
index 3ac5867..2ad1681 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -617,6 +617,7 @@ static void int_io_init() {
 #ifndef DOS
   SIGERRCHK(sigset(SIGIO, getsignaldata), "sigset io");
 #ifdef XWINDOW
+#ifndef __CYGWIN__
 #ifdef LINUX
   if (fcntl(ConnectionNumber(currentdsp->display_id), F_SETSIG, 0) < 0)
     perror("fcntl on X fd - SETSIG for input handling failed");
@@ -624,6 +625,7 @@ static void int_io_init() {
   if (ioctl(ConnectionNumber(currentdsp->display_id), I_SETSIG, S_INPUT) < 0)
     perror("ioctl on X fd - SETSIG for input handling failed");
 #endif
+#endif /* __CYGWIN__ */
 #endif /* XWINDOW */
 
 #ifdef USE_DLPI