Cygwin patch problem

dcorbit@DANNFAST c:/cygwin/usr/src/postgresql-7.1.2
$ patch -R -p1 <CYGWIN-PATCHES/postgresql.patch
patching file `configure.in'
patching file `src/Makefile.global.in'
patching file `src/bin/psql/tab-complete.c'
patching file `src/include/config.h.in'
patching file `src/interfaces/jdbc/Makefile'
patching file `src/interfaces/python/GNUmakefile'
patching file `src/interfaces/python/pgmodule.c'
patching file `src/makefiles/Makefile.win'

dcorbit@DANNFAST c:/cygwin/usr/src/postgresql-7.1.2
$ autoconf
configure.in:139: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:146: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:149: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:158: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:168: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:198: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:212: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:221: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:234: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:244: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:251: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:259: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:309: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:318: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:358: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:365: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:376: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:381: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:388: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:401: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:414: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:445: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:468: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:487: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:510: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:526: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:536: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:598: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:919: /bin/m4: Non-numeric argument to built-in `divert'
configure.in:290: error: possibly undefined macro: AC_PROG_CC_WORKS

dcorbit@DANNFAST c:/cygwin/usr/src/postgresql-7.1.2
$