./configure --with-oracle
make 
make test

##
Using gcc 2.7.2, Oracle 7.1.4, AIX 3.2.5

Problem is on line 4433 of configure:

    if test "`uname -s 2>/dev/null`" = "AIX"; then
      ORACLE_STLIBS="$ORACLE_STLIBS -bI:$ORACLE_HOME/lib/mili.exp"
    fi

the -b option has meaning to gcc, and not what you intended. It should read:

    if test "`uname -s 2>/dev/null`" = "AIX"; then
      ORACLE_STLIBS="$ORACLE_STLIBS -Xlinker -bI:$ORACLE_HOME/lib/mili.exp"
    fi

Hand editing the "-Xlinker" into the LIBS in Makefile also fixes the problem
Hand editing the "-Xlinker" into the LIBS1 in libphp3.module fixes the problem for apache builds