One MAKEFILE to rule them all

This changes so that SOURCES/MAKEFILE has built in dependencies to all
the other libraries it needs to create LBA0.EXE. It will automatically
run wmake in the directories where a library is missing.

It also removes the need for LINK.LD altogether. The (Open) Watcom C/C++
Tools User Guide states:

> Under DOS, an asterisk prefix (*) will cause Make to examine the length of the command argument. If it is
> too long (> 126 characters), it will take the command argument and stuff it into a temporary environment
> variable and then execute the command with "@env_var" as its argument.
...
> The command must, of course, support the "@env_var" syntax. Typically, DOS commands do not support
> this syntax but many of the Open Watcom tools do.

This is used to pass the full list of objects and libraries directly on
the command line to wlink, so a temporary file is no longer needed with
the linker directives.

.github/workflows/main.yml

@@ -40,54 +40,6 @@ jobs:
           echo "LIB386_PATH: $env:LIB386_PATH"
           echo "INCLUDE: $env:INCLUDE"
 
-      - name: Build LIB_3D
-        run: |
-          Push-Location "$env:GITHUB_WORKSPACE\LIB386\LIB_3D"
-          wmake
-          Pop-Location
-
-      - name: Build LIB_CD
-        run: |
-          Push-Location "$env:GITHUB_WORKSPACE\LIB386\LIB_CD"
-          wmake
-          Pop-Location
-
-      - name: Build LIB_MENU
-        run: |
-          Push-Location "$env:GITHUB_WORKSPACE\LIB386\LIB_MENU"
-          wmake
-          Pop-Location
-
-      - name: Build LIB_MIDI
-        run: |
-          Push-Location "$env:GITHUB_WORKSPACE\LIB386\LIB_MIDI"
-          wmake
-          Pop-Location
-
-      - name: Build LIB_MIX
-        run: |
-          Push-Location "$env:GITHUB_WORKSPACE\LIB386\LIB_MIX"
-          wmake
-          Pop-Location
-
-      - name: Build LIB_SAMP
-        run: |
-          Push-Location "$env:GITHUB_WORKSPACE\LIB386\LIB_SAMP"
-          wmake
-          Pop-Location
-
-      - name: Build LIB_SVGA
-        run: |
-          Push-Location "$env:GITHUB_WORKSPACE\LIB386\LIB_SVGA"
-          wmake
-          Pop-Location
-
-      - name: Build LIB_SYS
-        run: |
-          Push-Location "$env:GITHUB_WORKSPACE\LIB386\LIB_SYS"
-          wmake
-          Pop-Location
-
       - name: Build LBA0.exe
         run: |
           Push-Location "$env:GITHUB_WORKSPACE\SOURCES"

SOURCES/MAKEFILE

@@ -34,37 +34,41 @@ CFLAGS = /oeaxt /zp2 /4s /zq /v /s /DWATCOM9
 CFLAGS = /onatx /oh /oi /ei /zp2 /6s /fp6 /s /wx /wcd=131 /wcd=202 /wcd=303 /wcd=308
 !endif
 AFLAGS = /Cx /c /W0 /Sa /DNoLanguage=SYSCALL /omf
+LFLAGS  = option stack=7000
+LFLAGS += system dos4g
 # /d2
 # /"OPTION SYMFILE=LBA.SYM OPTION MAP=LBA.MAP"
 
 .SILENT
 
-OBJETS1  = version.obj perso.obj object.obj global.obj
-OBJETS2  = flipbox.obj diskfunc.obj fiche.obj extra.obj incrust.obj
-OBJETS3  = grille.obj grille_a.obj func.obj cpymask.obj
-OBJETS4  = Message.obj ambiance.obj Balance.obj gamemenu.obj fire.obj
-OBJETS5  = geretrak.obj gerelife.obj
-OBJETS6  = HoloMap.obj playfla.obj adfli_a.obj mcga.obj
-OBJETS7  = msg_cust.obj
+OBJECTS  = version.obj perso.obj object.obj global.obj
+OBJECTS += flipbox.obj diskfunc.obj fiche.obj extra.obj incrust.obj
+OBJECTS += grille.obj grille_a.obj func.obj cpymask.obj
+OBJECTS += Message.obj ambiance.obj Balance.obj gamemenu.obj fire.obj
+OBJECTS += geretrak.obj gerelife.obj
+OBJECTS += HoloMap.obj playfla.obj adfli_a.obj mcga.obj
+OBJECTS += msg_cust.obj
+
+LIBS  = $(%LIB386_PATH)\LIB_3D\LIB_3D.LIB
+LIBS += $(%LIB386_PATH)\LIB_CD\LIB_CD.LIB
+LIBS += $(%LIB386_PATH)\LIB_MENU\LIB_MENU.LIB
+LIBS += $(%LIB386_PATH)\LIB_MIDI\LIB_MIDI.LIB
+LIBS += $(%LIB386_PATH)\LIB_MIX\LIB_MIX.LIB
+LIBS += $(%LIB386_PATH)\LIB_SAMP\LIB_WAVE.LIB
+LIBS += $(%LIB386_PATH)\LIB_SVGA\LIB_SVGA.LIB
+LIBS += $(%LIB386_PATH)\LIB_SYS\LIB_SYS.LIB
 
 EXE      = LBA0
+# This is the GNU Make equivalent of CURDIR :=
+CURDIR   = $+ $(%cdrive):$(%cwd) $-
 
-$(EXE).exe: LINK.LD
-	$(WL) Name $@ @ $<
+$(EXE).exe: $(LIBS) $(OBJECTS)
+	*$(WL) Name $@ $(LFLAGS) Library { $LIBS } File { $OBJECTS }
 
-LINK.LD: $(OBJETS1) $(OBJETS2) $(OBJETS3) $(OBJETS4) $(OBJETS5) $(OBJETS6) $(OBJETS7)
-	if exist $@ del $@
-	echo option stack=7000 >> $@
-	echo system dos4g >> $@
-	for %%G in ($<) do echo File %%G >> $@
-	echo Library %LIB386_PATH%\LIB_3D\LIB_3D.LIB >> $@
-	echo Library %LIB386_PATH%\LIB_CD\LIB_CD.LIB >> $@
-	echo Library %LIB386_PATH%\LIB_MENU\LIB_MENU.LIB >> $@
-	echo Library %LIB386_PATH%\LIB_MIDI\LIB_MIDI.LIB >> $@
-	echo Library %LIB386_PATH%\LIB_MIX\LIB_MIX.LIB >> $@
-	echo Library %LIB386_PATH%\LIB_SAMP\LIB_WAVE.LIB >> $@
-	echo Library %LIB386_PATH%\LIB_SVGA\LIB_SVGA.LIB >> $@
-	echo Library %LIB386_PATH%\LIB_SYS\LIB_SYS.LIB >> $@
+$(LIBS):
+	cd $^:
+	$(MAKE)
+	@cd $(CURDIR)
 
 .c.obj :
 	PRNTITRE M "$*.C"