# makefile - KPComCtl VBX control for MSVC 1.52
#
# Build: nmake
# Clean: nmake clean
#
# Prerequisites:
#   - MSVC 1.52 (cl, link, rc in PATH)
#   - VBAPI.LIB (from VBX CDK - contains thunk stubs, NOT an import library)
#
# High-speed serial note:
#   The stock Windows 3.1 COMM.DRV enables the 16550 FIFO for receive only,
#   with a trigger level of 14 (leaving only 2 bytes of headroom). This causes
#   overruns at baud rates above 9600 under load. For reliable operation at
#   57600 or 115200, install KPCOMM.DRV (built from ..\drv\) or CyberCom
#   V1.1.0.0P (..\drivers\CYBERCOM.DRV).
#
#   Install (KPCOMM):
#     1. Copy ..\drv\KPCOMM.DRV to \WINDOWS\SYSTEM
#     2. Edit SYSTEM.INI [boot] section: comm.drv=kpcomm.drv
#     3. Add to [386Enh] section: COM1FIFO=1 (for each port in use)
#     4. Restart Windows

CC      = cl
LINK    = link
RC      = rc

# Compiler flags:
#   -c      Compile only
#   -W3     Warning level 3
#   -ASw    Small model, SS!=DS (Windows DLL)
#   -Gsw    No stack probes, Windows prolog/epilog
#   -Ow     Safe optimizations for Windows
#   -Zp2    Pack structures on 2-byte boundaries
#   -Ze     Enable Microsoft extensions
CFLAGS  = -c -W3 -ASw -Gsw -Ow -Zp2 -Ze -IC:\MSVC\INCLUDE

# Linker flags:
#   /NOD    No default libraries
#   /NOE    No extended dictionary search
#   /AL:16  Segment alignment 16
LFLAGS  = /NOD /NOE /AL:16 /LI:C:\MSVC\LIB

# Libraries
#   sdllcew  Small model DLL C runtime (emulated math, Windows)
#   libw     Windows API import library
#   commdlg  Common dialog import library
#   vbapi    VB API thunk library (from VBX CDK)
LIBS    = sdllcew libw commdlg vbapi

# Output
TARGET  = kpcomctl.vbx

# Objects
OBJS    = kpcomctl.obj serial.obj

# -----------------------------------------------------------------------
# Build rules
# -----------------------------------------------------------------------
all: $(TARGET)

$(TARGET): $(OBJS) kpcomctl.def kpcomctl.res
	$(LINK) $(LFLAGS) $(OBJS), $(TARGET),,$(LIBS), kpcomctl.def
	$(RC) kpcomctl.res $(TARGET)

kpcomctl.obj: kpcomctl.c kpcomctl.h vbapi.h serial.h
	$(CC) $(CFLAGS) kpcomctl.c

serial.obj: serial.c serial.h
	$(CC) $(CFLAGS) serial.c

kpcomctl.res: kpcomctl.rc kpcomctl.h kpcomctl.bmp
	$(RC) -r -iC:\MSVC\INCLUDE kpcomctl.rc

# -----------------------------------------------------------------------
# Clean
# -----------------------------------------------------------------------
clean:
	-del *.obj
	-del *.res
	-del *.vbx
	-del *.map