Problem with "make"- inverted libraries?

Hi- Just to start off, I do need to build from source because I have to alter the internals of the DB for a class I'm
taking.
After my previous problem, I managed to get it working (somehow), but then I was having problems with initdb (too many
possible
connections or semaphores or something like that) so I decided to redownload Cygwin and Postgres (whatever the current
versions
are).

I ran ./configure  and that seemed to work. I tried to run "make", and the output I got is below. It looks like its
lookingin 
/usr/include before the postgres includes. How can I fix this?
-Elissa

---------------------------------------------------
[elissa@gs02 ...src/postgresql-7.4.1-3]$ make

make -C doc all

make[1]: Entering directory `/usr/src/postgresql-7.4.1-3/doc'

make[1]: Nothing to be done for `all'.

make[1]: Leaving directory `/usr/src/postgresql-7.4.1-3/doc'

make -C src all

make[1]: Entering directory `/usr/src/postgresql-7.4.1-3/src'

make -C port all

make[2]: Entering directory `/usr/src/postgresql-7.4.1-3/src/port'

gcc -O2 -fno-strict-aliasing -Wall -Wmissing-prototypes -Wmissing-declarations

I../../src/include -c -o crypt.o crypt.c

crypt.c:119: conflicting types for `int32_t'

/usr/include/stdint.h:20: previous declaration of `int32_t'

crypt.c:248: parse error before "__int64"

crypt.c:248: warning: no semicolon at end of struct or union

crypt.c:250: warning: type defaults to `int' in declaration of `C_block'

crypt.c:250: warning: data definition has no type or storage class

crypt.c:304: parse error before '[' token

crypt.c:307: parse error before "C_block"

crypt.c: In function `permute':

crypt.c:318: parse error before "C_block"

crypt.c:323: `tp' undeclared (first use in this function)

crypt.c:323: (Each undeclared identifier is reported only once

crypt.c:323: for each function it appears in.)

crypt.c:330: subscripted value is neither array nor pointer

crypt.c:331: warning: left-hand operand of comma expression has no effect

crypt.c:333: subscripted value is neither array nor pointer

crypt.c:334: warning: left-hand operand of comma expression has no effect

crypt.c:337: invalid type argument of `unary *'

crypt.c:337: invalid type argument of `unary *'

crypt.c:337: warning: left-hand operand of comma expression has no effect

crypt.c: At top level:

crypt.c:473: parse error before "PC1ROT"

crypt.c:473: warning: type defaults to `int' in declaration of `PC1ROT'

crypt.c:473: warning: data definition has no type or storage class

crypt.c:476: parse error before "PC2ROT"

crypt.c:476: warning: type defaults to `int' in declaration of `PC2ROT'

crypt.c:476: warning: data definition has no type or storage class

crypt.c:479: parse error before "IE3264"

crypt.c:479: warning: type defaults to `int' in declaration of `IE3264'

crypt.c:479: warning: data definition has no type or storage class

crypt.c:485: parse error before "CF6464"

crypt.c:485: warning: type defaults to `int' in declaration of `CF6464'

crypt.c:485: warning: data definition has no type or storage class

crypt.c:491: parse error before "constdatablock"

crypt.c:491: warning: type defaults to `int' in declaration of `constdatablock'

crypt.c:491: warning: data definition has no type or storage class

crypt.c:504: warning: no previous prototype for `crypt'

crypt.c: In function `crypt':

crypt.c:513: parse error before "keyblock"

crypt.c:535: `keyblock' undeclared (first use in this function)

crypt.c:594: `rsltblock' undeclared (first use in this function)

crypt.c: At top level:

crypt.c:637: parse error before "KS"

crypt.c:637: warning: type defaults to `int' in declaration of `KS'

crypt.c:637: warning: data definition has no type or storage class

crypt.c: In function `des_setkey':

crypt.c:649: `ptabp' undeclared (first use in this function)

crypt.c:655: parse error before "tblk"

crypt.c:655: `tblk' undeclared (first use in this function)

crypt.c:655: parse error before ')' token

crypt.c:655: warning: left-hand operand of comma expression has no effect

crypt.c:657: parse error before ')' token

crypt.c:657: parse error before ')' token

crypt.c:657: warning: left-hand operand of comma expression has no effect

crypt.c:661: parse error before ')' token

crypt.c:661: parse error before ')' token

crypt.c:661: warning: left-hand operand of comma expression has no effect

crypt.c:662: parse error before ')' token

crypt.c:663: parse error before "tblk"

crypt.c:663: warning: left-hand operand of comma expression has no effect

crypt.c:664: parse error before ')' token

crypt.c:664: parse error before ')' token

crypt.c:664: warning: left-hand operand of comma expression has no effect

crypt.c: In function `des_cipher':

crypt.c:693: `kp' undeclared (first use in this function)

crypt.c:696: parse error before "B"

crypt.c:699: parse error before "cvt"

crypt.c:699: `cvt' undeclared (first use in this function)

crypt.c:719: parse error before ')' token

crypt.c:719: parse error before ')' token

crypt.c:719: warning: left-hand operand of comma expression has no effect

crypt.c:728: `B' undeclared (first use in this function)

crypt.c:728: warning: left-hand operand of comma expression has no effect

crypt.c:729: parse error before "tblk"

crypt.c:729: `tblk' undeclared (first use in this function)

crypt.c:729: parse error before ')' token

crypt.c:729: warning: left-hand operand of comma expression has no effect

crypt.c:730: parse error before "tblk"

crypt.c:730: parse error before ')' token

crypt.c:730: warning: left-hand operand of comma expression has no effect

crypt.c:780: parse error before ')' token

crypt.c:781: parse error before ')' token

crypt.c:783: parse error before ')' token

crypt.c:798: warning: left-hand operand of comma expression has no effect

crypt.c:799: parse error before "tblk"

crypt.c:799: parse error before ')' token

crypt.c:799: warning: left-hand operand of comma expression has no effect

crypt.c:811: parse error before ')' token

crypt.c:811: parse error before ')' token

crypt.c:811: warning: left-hand operand of comma expression has no effect

crypt.c: In function `init_des':

crypt.c:862: warning: implicit declaration of function `init_perm'

crypt.c:966: parse error before "cvt"

crypt.c:966: `cvt' undeclared (first use in this function)

crypt.c:970: parse error before "cvt"

crypt.c:830: warning: unused variable `init_start'

crypt.c: At top level:

crypt.c:987: parse error before "C_block"

crypt.c:987: warning: type defaults to `int' in declaration of `perm'

crypt.c:987: warning: data definition has no type or storage class

crypt.c:991: parse error before '{' token

crypt.c:1002: warning: type defaults to `int' in declaration of `i'

crypt.c:1002: `l' undeclared here (not in a function)

crypt.c:1002: warning: data definition has no type or storage class

crypt.c:1003: warning: type defaults to `int' in declaration of `l'

crypt.c:1003: initializer element is not constant

crypt.c:1003: warning: data definition has no type or storage class

crypt.c:1004: parse error before "for"

crypt.c: In function `setkey':

crypt.c:1022: parse error before "keyblock"

crypt.c:1032: `keyblock' undeclared (first use in this function)

crypt.c: In function `encrypt':

crypt.c:1048: parse error before "cblock"

crypt.c:1058: `cblock' undeclared (first use in this function)

crypt.c: At top level:

crypt.c:1018: warning: `setkey' defined but not used

crypt.c:1044: warning: `encrypt' defined but not used

make[2]: *** [crypt.o] Error 1

make[2]: Leaving directory `/usr/src/postgresql-7.4.1-3/src/port'

make[1]: *** [all] Error 2

make[1]: Leaving directory `/usr/src/postgresql-7.4.1-3/src'

make: *** [all] Error 2