I'm converting a makefile so it can be used with gnu make. In the other make program (can't find what was the version...) this part was executed :

```
#******************************************************************************
#                                Explicit Rules
#******************************************************************************
#
# This section contents the explicit rules to create the Virtual File system.
# This file system actualy contains the files used by the Web interface.
# 
#******************************************************************************
CFGFILE = $(WEBDST)/vfs.cfg

# Compiling vfsdata
$(OBJDIR)vfsdata.o : vfsdata.c
    @echo .
    @echo ::.   COMPILING1 : vfsdata.c
    @echo ::::.
    $(NOECHOC)$(CC) $(CFLAGS) $(DEBUGFLASG) $(subst \,/,$(VFSDIR))/vfsdata.c -o"$@"     $(INCLUDE)

# Dependance of vfsdata.c
vfsdata.c : $(addprefix $(WEBSRC)\,$(WEBGLOBAL)) $(addprefix $(WEBDST)\,$(WEBLOCAL))

# Make vfsdata.c writable
    @if exist $(VFSDIR)\vfsdata.c \
            chmod 777 $(VFSDIR)\vfsdata.c

#
# Generate the configuration file needed by vfscomp
#
    @echo [general] > $(CFGFILE)
    @echo vfs_root_dir  = $(WEBDST)>> $(CFGFILE)
    @echo vfs_data_file = $(VFSDIR)\vfsdata>> $(CFGFILE)
    @echo vfs_image_var = vfsimage>> $(CFGFILE)
    @echo far_pointer   = yes>> $(CFGFILE)
    @echo compress      = yes>> $(CFGFILE)

    @echo [file] >> $(CFGFILE)
    @echo $(sort $(WEBGLOBAL) $(WEBLOCAL)) | $(TR) -s " " "[\n*]" \
                                       | $(SED) "s/gif/gif -u/g" \
                                       >> $(CFGFILE)

#
# Create the local directory tree
#
    @for %%f in ($(subst /,\,$(dir $(WEBGLOBAL)))) do \
            if not exist $(WEBDST)\%%f mkdir $(WEBDST)\%%f

#
# Copy the WEB pages directory tree localy
#
    @for %%f in ($(subst /,\,$(WEBGLOBAL))) do \
            cp -rf $(WEBSRC)\%%f $(WEBDST)\%%f

#
# Generate the virtual file system
#
    @$(TOOLDIR)/vfscomp $(subst \,/,$(CFGFILE))

#
# Delete the local directory tree
#

#delete the directory recursively exept the one in the exclusion list

    @for %%f in ($(filter-out $(EXCLUSION), $(WEBDIR))) do \
            if exist $(WEBDST)\%%f \
                    rm -rf $(WEBDST)\%%f

#delete the remaining files.

    @for %%f in ($(subst /,\,$(WEBGLOBAL))) do \
            if exist $(WEBDST)\%%f \
                    rm -f $(WEBDST)\%%f

    @del $(subst /,\,$(CFGFILE))

```

When I build my code, I get this error

```
The syntax of the command is incorrect.

```

I have the feeling that some commands like @for @del @if exist are command that are not supported(or with a different syntax) in the gnu make.

I checked in the online GNU make documentation but I didn't found commands that are similar to those used below. 

Is there any equivalent in gnu make to the command used in this part of the makefile?

Thanks in advance!

EDIT :

I removed the @ and executed make. I can see when the message "The syntax of the command is incorrect" appear :

```
if exist ../Pa/Filesys\vfsdata.c \
    chmod 777 ../Pa/Filesys\vfsdata.c
echo [general] > ../Pa/Filesys/vfs.cfg
echo vfs_root_dir  = ../Pa/Filesys>> ../Pa/Filesys/vfs.cfg
echo vfs_data_file = ../Pa/Filesys\vfsdata>> ../Pa/Filesys/vfs.cfg
echo vfs_image_var = vfsimage>> ../Pa/Filesys/vfs.cfg
echo far_pointer   = yes>> ../Pa/Filesys/vfs.cfg
echo compress      = yes>> ../Pa/Filesys/vfs.cfg
echo [file] >> ../Pa/Filesys/vfs.cfg
echo behavior/datasync/datasync.htc behavior/defered/defered.htc behavior/inputs/indirect.htc behavior/inputs/inputs.htc behavior/progress/progress.htc behavior/slider/slBottom.gif behavior/slider/slLeft.gif behavior/slider/slRight.gif behavior/slider/slTop.gif behavior/slider/slider.htc css/env.css html/cfgmain.html html/changepass.html html/diagpa.html html/firmhlp.html html/firmware.html html/home.html html/logpage.html html/progressend.html html/progressstart.html html/soundhlp.html html/support.html html/uplmain.html html/uploadstart.html img/button.gif img/logo.gif index.html xslt/activate.xslt xslt/main.xslt xslt/netmenu.xslt xslt/page.xslt xslt/page_func.xslt xslt/progress.xslt xslt/tlmenu.xslt xslt/upload.xslt | tr -s " " "[\n*]" \
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
The syntax of the command is incorrect.
                                       | sed "s/gif/gif -u/g" \
                                       >> ../Pa/Filesys/vfs.cfg
for %%f in (.\ css\ img\ img\ xslt\ xslt\ xslt\ xslt\ xslt\ xslt\ xslt\ xslt\ html\ html\ html\ html\ html\ html\ html\ html\ html\ html\ html\ html\ behavior\slider\ behavior\slider\ behavior\slider\ behavior\slider\ behavior\slider\ behavior\datasync\ behavior\progress\ behavior\inputs\ behavior\inputs\ behavior\defered\) do \

```

It appear that the syntax error is somewhere on the line 

```
echo $(sort $(WEBGLOBAL) $(WEBLOCAL)) | $(TR) -s " " "[\n*]" \
                                       | $(SED) "s/gif/gif -u/g" \

```