build: add a rule to manually generate the assembly configuration file

This new rule can be used to re-generate the assembly configuration file
after the os.conf file has been manually edited.

.github/workflows/build_zeal8bitos.yml

@@ -38,6 +38,7 @@ jobs:
         run: |
           make alldefconfig
           echo 'CONFIG_ENABLE_EMULATION_HOSTFS=y' >> os.conf
+          make asmconf
           z88dk-z80asm
           make
           mv build/os_with_romdisk.img build/$(git describe --tags).img

Makefile

@@ -89,7 +89,7 @@ LINKERFILE_PATH=target/$(TARGET)/$(LINKERFILE)
 LINKERFILE_OBJ=$(patsubst %.asm,%.o,$(LINKERFILE_PATH))
 LINKERFILE_BUILT=$(BINDIR)/$(LINKERFILE_OBJ)
 
-.PHONY: check menuconfig $(SUBDIRS) version packer
+.PHONY: check menuconfig $(SUBDIRS) version packer asmconf
 
 all:$(KCONFIG_CONFIG) version packer precmd $(LINKERFILE_OBJ) $(OBJS)
 	$(CC) $(ASMFLAGS) -o$(FULLBIN) -b -m -s $(LINKERFILE_BUILT) $(BUILTOBJS)
@@ -144,6 +144,10 @@ define CONVERT_config_asm =
     echo -e "\nENDIF" >> $2
 endef
 
+asmconf: $(KCONFIG_CONFIG)
+	@echo "Converting $(KCONFIG_CONFIG) to $(OSCONFIG_ASM) ..."
+	@$(call CONVERT_config_asm,$(KCONFIG_CONFIG), $(OSCONFIG_ASM))
+
 menuconfig:
 	$(MENUCONFIG)
 	@echo "Converting $(KCONFIG_CONFIG) to $(OSCONFIG_ASM) ..."

include/fs/hostfs_h.asm

@@ -47,4 +47,4 @@
     ENDIF ; CONFIG_ENABLE_EMULATION_HOSTFS
 
 
-    ENDIF ; ZEALFS_H
+    ENDIF ; HOSTFS_H