AIX 4.2 43p compile problem...

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                        POSTGRESQL BUG REPORT TEMPLATE
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Your name        :    D. Jay Newman
Your email address    :    jay@sprucegrove.com


System Configuration
---------------------
  Architecture (example: Intel Pentium)      :   PowerPC

  Operating System (example: Linux 2.0.26 ELF)     :   AIX 4.2 (43p)

  PostgreSQL version (example: PostgreSQL-6.5)  :   PostgreSQL-6.5

  Compiler used (example:  gcc 2.8.0)        :   xlc


Please enter a FULL description of your problem:
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Because stdio.h, stdlib.h, and unistd.h are all included there are
conflicts (getopt.h is defined slightly differently, as are a few
other functions).



Please describe a way to repeat the problem.   Please try to provide a
concise reproducible example, if at all possible:
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cd /usr/local/src/pgsql
gmake all

....

gmake[1]: Entering directory `/usr/local/src/pgsql/src/utils'
xlc -I../include -I../backend   -qchars=signed -qmaxmem=8192 -qhalt=w -qsrcmsg -
qcheck=divzero -qlonglong   -c version.c -o version.o
"/usr/include/stdlib.h", line 471.33: 1506-343 (S) Redeclaration of getopt diffe
rs from previous declaration on line 378 of "/usr/include/stdio.h".
"/usr/include/stdlib.h", line 471.33: 1506-377 (I) The type "char**" of paramete
r 2 differs from the previous type "char* const*".
"/usr/include/stdlib.h", line 472.33: 1506-343 (S) Redeclaration of getpass diff
ers from previous declaration on line 367 of "/usr/include/unistd.h".
"/usr/include/stdlib.h", line 472.33: 1506-377 (I) The type "char*" of parameter
 1 differs from the previous type "const char*".
gmake[1]: *** [version.o] Error 1
gmake[1]: Leaving directory `/usr/local/src/pgsql/src/utils'
gmake: *** [all] Error 2





If you know how this problem might be fixed, list the solution below:
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Limiting the included files?