If you have previously built GCC in the same directory for a
different target machine, do @samp{make distclean} to delete all files
-that might be invalid. One of the files this deletes is
-@file{Makefile}; if @samp{make distclean} complains that @file{Makefile}
-does not exist, it probably means that the directory is already suitably
-clean. However, with the recommended method of building in a separate
-@var{objdir}, you should simply use a different @var{objdir} for each
-target.
+that might be invalid. One of the files this deletes is @file{Makefile};
+if @samp{make distclean} complains that @file{Makefile} does not exist
+or issues a message like ``don't know how to make distclean'' it probably
+means that the directory is already suitably clean. However, with the
+recommended method of building in a separate @var{objdir}, you should
+simply use a different @var{objdir} for each target.
Second, when configuring a native system, either @command{cc} or
@command{gcc} must be in your path or you must set @env{CC} in
@item @anchor{with-gnu-as}--with-gnu-as
Specify that the compiler should assume that the
assembler it finds is the GNU assembler. However, this does not modify
-the rules to find an assembler and will result in confusion if found
-assembler is not actually the GNU assembler. (Confusion will also
+the rules to find an assembler and will result in confusion if the
+assembler found is not actually the GNU assembler. (Confusion may also
result if the compiler finds the GNU assembler but has not been
configured with @option{--with-gnu-as}.) If you have more than one
assembler installed on your system, you may want to use this option in
@item --with-cpu=@var{cpu}
Specify which cpu variant the
compiler should generate code for by default. This is currently
-only supported on the some ports, specifically arm, powerpc, and
+only supported on some ports, specifically arm, powerpc, and
SPARC@. If configure does not recognize the model name (e.g.@: arm700,
603e, or ultrasparc) you provide, please check the configure script
for a complete list of supported models.