mixed implicit and normal rules

[Mike M]

Can anybody help out with the following error I'm seeing with a Makefile
and GNU Make?  


Makefile:148: *** mixed implicit and normal rules.  Stop. 

Line 148 is as follows:

$(TARGETS:%=%_blaze_swig) $(TARGETS:%=%_blaze_swig_export): $(MODULES) swig 
blaze_swig


And the output from make -d is here:

GNU Make version 3.79, by Richard Stallman and Roland McGrath.
Built for sparc-sun-solaris2.11
Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99
        Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

Report bugs to <bug-make@gnu.org>.

Reading makefiles...
Reading makefile `Makefile'...
Reading makefile `Makefile.sitedefs' (search path) (no ~ expansion)...
Reading makefile 
`/export/home/watanabe/openSparcT1_sam/sam-t1/src/riesling-cm/riesling/src/Makefile.system'
 (search path) (no ~ expansion)...
Reading makefile `Makefile.prjdefs' (search path) (no ~ expansion)...
Reading makefile 
`/export/home/watanabe/openSparcT1_sam/sam-t1/src/riesling-cm/riesling/src/Makefile.sitedefs'
 (search path) (no ~ expansion)...
Reading makefile 
`/export/home/watanabe/openSparcT1_sam/sam-t1/src/riesling-cm/riesling/src/Makefile.system'
 (search path) (no ~ expansion)...
Reading makefile `Makefile.prjrules' (search path) (no ~ expansion)...
Makefile:148: *** mixed implicit and normal rules.  Stop.

System info is:
SunOS 5.8 Generic_117350-33 sun4u sparc