7.0beta1: bugs appearing on cygwin

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Marko Kreen
Your email address : marko(at)l-t(dot)ee

System Configuration
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Architecture (example: Intel Pentium) : Intel Pentium 100

Operating System (example: Linux 2.0.26 ELF) : winnt4/cygwin 20.1

PostgreSQL version (example: PostgreSQL-6.5.2): PostgreSQL-7.0beta1

Compiler used (example: gcc 2.8.0) : egcs-2.91.57 (cygwin default)

Please enter a FULL description of your problem:
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1) ecpg does not honour HAVE_SNPRINTF being undefined. make fails :(
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gcc -o ecpg preproc.o pgc.o type.o ecpg.o ecpg_keywords.o output.o keywords.o c_keywords.o ../lib/typename.o descriptor.o variable.
-L/usr/local/lib -lcrypt -lm -lreadline -ltermcap -lncurses -lcygipc -g
descriptor.o: In function `ECPGnumeric_lvalue':
/home/src/pgsql/src/interfaces/ecpg/preproc/descriptor.c:55: undefined reference to `snprintf'
descriptor.o: In function `ECPGstring_buffer':
/home/src/pgsql/src/interfaces/ecpg/preproc/descriptor.c:78: undefined reference to `snprintf'
descriptor.o: In function `ECPGstring_length':
/home/src/pgsql/src/interfaces/ecpg/preproc/descriptor.c:94: undefined reference to `snprintf'
/home/src/pgsql/src/interfaces/ecpg/preproc/descriptor.c:101: undefined reference to `snprintf'
descriptor.o: In function `ECPGdata_assignment':
/home/src/pgsql/src/interfaces/ecpg/preproc/descriptor.c:152: undefined reference to `snprintf'
descriptor.o:/home/src/pgsql/src/interfaces/ecpg/preproc/descriptor.c:165: more undefined references to `snprintf' follow
collect2: ld returned 1 exit status
make[3]: *** [ecpg] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all] Error 2
make: *** [all] Error 2
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2) gcc warns about redefine of CURRENT_TIME. Nothing
serious (I mean the compile does not fail..), I just thought I mention.

defined in backend/parse.h & <sys/ipc.h> (cygwin32_ipc-1.03)

ok, I chacked. In different .c files they are included in different
order.

ipc.h: #define CURRENT_TIME time(0)
parse.h: #define CURRENT_TIME 287

How it affects the program, I do not know. Maybe this is serious...

Please describe a way to repeat the problem. Please try to provide a
concise reproducible example, if at all possible:
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snoopy$ uname -a
CYGWIN_NT-4.0 SNOOPY 20.1 (0.3/1/1) 1998-12-3 20:39:18 i586 unknown
snoopy$ make

If you know how this problem might be fixed, list the solution below:
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Somebody with a clue should look into it.