Compiling Postgresql --with-unixodbc

Compiling Postgresql
Please advise if this is a bug or am I causing the error:
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gcc -march=pentium3 -O3 -pipe -Wall -Wmissing-prototypes
-Wmissing-declarations -fpic -I. -I../../../src/include -DFRONTEND
-DMD5_ODBC -c -o info.o info.c -MMD
In file included from /usr/include/sql.h:17,
from /usr/include/odbcinst.h:20,
from psqlodbc.h:41,
from info.c:19:
/usr/include/sqltypes.h:278: redefinition of `struct tagDATE_STRUCT'
/usr/include/sqltypes.h:289: redefinition of `struct tagTIME_STRUCT'
/usr/include/sqltypes.h:300: redefinition of `struct
tagTIMESTAMP_STRUCT'
make[3]: *** [info.o] Error 1
make[3]: Leaving directory
`/usr2/toclear/portage/postgresql-7.2.3-r1/work/postgresql-7.2.3/src/interfaces/odbc'
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Configuration Used:

./configure --prefix=/usr \
--mandir=/usr/share/man \
--host=${CHOST} \
--docdir=/usr/share/doc/${P} \
--libdir=/usr/lib \
--enable-syslog \
--enable-depend \
--with-gnu-ld \
--with-pam \
--with-maxbackends=1024 \
--with-tcl --with-python --with-perl --with-openssl \
--enable-locale \
--enable-nls --enable-multibyte --enable-odbc \ --with-unixodbc \
--with-CXX