Error : Makefile:106: *** target pattern contains no `%'. Stop.

[Chandragupta Mishra]

Hi,

 I'm receiving an error message "Makefile:106: *** target pattern contains no `%'.  Stop." 
The error is displayed when I tried to create a simple C extension in Ruby using Cygwin. 

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The system in question is running under Windows XP Professional.
I'm presently using the Cygwin version 2.573.2.3.  
The Ruby Version displayed: ruby 1.8.6 (2007-09-24 patchlevel 111) [i386-mswin32]

The make file generated is also provided as an attachment to this email..

---------------------------------Makefile-------------------------------------------------------------------------

SHELL = /bin/sh

#### Start of system configuration section. ####

srcdir = .
topdir = c:/ruby/lib/ruby/1.8/i386-mswin32
hdrdir = $(topdir)
VPATH = $(srcdir);$(topdir);$(hdrdir)

DESTDIR = c:
prefix = $(DESTDIR)/ruby
exec_prefix = $(prefix)
sitedir = $(prefix)/lib/ruby/site_ruby
rubylibdir = $(libdir)/ruby/$(ruby_version)
archdir = $(rubylibdir)/$(arch)
sbindir = $(exec_prefix)/sbin
datadir = $(prefix)/share
includedir = $(prefix)/include
infodir = $(prefix)/info
sysconfdir = $(prefix)/etc
mandir = $(prefix)/man
libdir = $(exec_prefix)/lib
sharedstatedir = $(DESTDIR)/etc
oldincludedir = $(DESTDIR)/usr/include
sitearchdir = $(sitelibdir)/$(sitearch)
localstatedir = $(DESTDIR)/var
bindir = $(exec_prefix)/bin
sitelibdir = $(sitedir)/$(ruby_version)
libexecdir = $(exec_prefix)/libexec

CC = cl -nologo
LIBRUBY = $(RUBY_SO_NAME).lib
LIBRUBY_A = $(RUBY_SO_NAME)-static.lib
LIBRUBYARG_SHARED = $(LIBRUBY)
LIBRUBYARG_STATIC = $(LIBRUBY_A)

RUBY_EXTCONF_H = 
CFLAGS   =  -MD -Zi -O2b2xg- -G6 
INCFLAGS = -I. -I$(topdir) -I$(hdrdir) -I$(srcdir)
CPPFLAGS =  
CXXFLAGS = $(CFLAGS) 
DLDFLAGS =  -link -incremental:no -debug -opt:ref -opt:icf -dll $(LIBPATH) -def:$(DEFFILE) -implib:$(*F:.so=)-$(arch).lib -pdb:$(*F:.so=)-$(arch).pdb 
LDSHARED = cl -nologo -LD
AR = lib -nologo
EXEEXT = .exe

RUBY_INSTALL_NAME = ruby
RUBY_SO_NAME = msvcrt-ruby18
arch = i386-mswin32
sitearch = i386-msvcrt
ruby_version = 1.8
ruby = c:/ruby/bin/ruby
RUBY = $(ruby:/=\)
RM = $(RUBY) -run -e rm -- -f
MAKEDIRS = @$(RUBY) -run -e mkdir -- -p
INSTALL = @$(RUBY) -run -e install -- -vp
INSTALL_PROG = $(INSTALL) -m 0755
INSTALL_DATA = $(INSTALL) -m 0644
COPY = copy > nul

#### End of system configuration section. ####

preload = 

libpath = . $(libdir)
LIBPATH =  -libpath:"." -libpath:"$(libdir)"
DEFFILE = $(TARGET)-$(arch).def

CLEANFILES = mkmf.log
DISTCLEANFILES = vc*.pdb $(DEFFILE)

extout = 
extout_prefix = 
target_prefix = 
LOCAL_LIBS = 
LIBS = $(LIBRUBYARG_SHARED)  oldnames.lib user32.lib advapi32.lib ws2_32.lib  
SRCS = my_test.c
OBJS = my_test.obj
TARGET = my_test
DLLIB = $(TARGET).so
EXTSTATIC = 
STATIC_LIB = 

RUBYCOMMONDIR = $(sitedir)$(target_prefix)
RUBYLIBDIR    = $(sitelibdir)$(target_prefix)
RUBYARCHDIR   = $(sitearchdir)$(target_prefix)

TARGET_SO     = $(DLLIB)
CLEANLIBS     = $(TARGET).so $(TARGET).il? $(TARGET).tds $(TARGET).map
CLEANOBJS     = *.obj *.lib *.s[ol] *.pdb *.exp *.bak

all:        $(DLLIB)
static:        $(STATIC_LIB)

clean:
        @-$(RM) $(CLEANLIBS:/=\) $(CLEANOBJS:/=\) $(CLEANFILES:/=\)

distclean:    clean
        @-$(RM) Makefile $(RUBY_EXTCONF_H) conftest.* mkmf.log
        @-$(RM) core ruby$(EXEEXT) *~ $(DISTCLEANFILES:/=\)

realclean:    distclean
install: install-so install-rb

install-so: $(RUBYARCHDIR)
install-so: $(RUBYARCHDIR)/$(DLLIB)
$(RUBYARCHDIR)/$(DLLIB): $(DLLIB)
    $(INSTALL_PROG) $(DLLIB:/=\) $(RUBYARCHDIR:/=\)
install-rb: pre-install-rb install-rb-default
install-rb-default: pre-install-rb-default
pre-install-rb: Makefile
pre-install-rb-default: Makefile
$(RUBYARCHDIR):
    $(MAKEDIRS) $@

site-install: site-install-so site-install-rb
site-install-so: install-so
site-install-rb: install-rb

.SUFFIXES: .c .m .cc .cxx .cpp .obj

{$(srcdir)}.cc{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(topdir)}.cc{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(hdrdir)}.cc{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

.cc.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(srcdir)}.cxx{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(topdir)}.cxx{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(hdrdir)}.cxx{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

.cxx.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(srcdir)}.cpp{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(topdir)}.cpp{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(hdrdir)}.cpp{}.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

.cpp.obj:
    $(CXX) $(INCFLAGS) $(CXXFLAGS) $(CPPFLAGS) -c -Tp$(<:\=/)

{$(srcdir)}.c{}.obj:
    $(CC) $(INCFLAGS) $(CFLAGS) $(CPPFLAGS) -c -Tc$(<:\=/)

{$(topdir)}.c{}.obj:
    $(CC) $(INCFLAGS) $(CFLAGS) $(CPPFLAGS) -c -Tc$(<:\=/)

{$(hdrdir)}.c{}.obj:
    $(CC) $(INCFLAGS) $(CFLAGS) $(CPPFLAGS) -c -Tc$(<:\=/)

.c.obj:
    $(CC) $(INCFLAGS) $(CFLAGS) $(CPPFLAGS) -c -Tc$(<:\=/)

$(DLLIB): $(DEFFILE) $(OBJS)
    @-$(RM) $@
    $(LDSHARED) -Fe$(@) $(OBJS) $(LIBS) $(LOCAL_LIBS) $(DLDFLAGS)



$(DEFFILE): 
    $(RUBY) -e "puts 'EXPORTS', 'Init_$(TARGET)'"  > $@

$(OBJS): {.;$(srcdir);$(topdir);$(hdrdir)}ruby.h {.;$(srcdir);$(topdir);$(hdrdir)}defines.h



with warm regards,
Chandragupta Mishra

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