apache 64bit build error issue

[Sachin Goyal <gosachin@xxxxxxxxx>]

The Follwing packages are installed on my AIX 6.1 box

gcc-4.7.2-1
gcc-c++-4.7.2-1
gcc-cpp-4.7.2-1
gcc-gfortran-4.7.2-1
libgcc-4.7.2-1
libgomp-4.7.2-1
libstdc++-4.7.2-1
libstdc++-devel-4.7.2-1
gmp-5.0.5-1
libmpc-1.0.1-2
libmpc-devel-1.0.1-2
libmpcdec-1.2.6-1
libmpcdec-devel-1.2.6-1
mpfr-3.1.1-1
mpfr-devel-3.1.1-1
flex-2.5.4a-6
m4-1.4.1-1
bison-1.875-3
libiconv-1.14-2
gettext-0.17-1
gettext-devel-0.17-1

I used follwing command to confiure the apache:

./configure CC="gcc -maix64" CFLAGS="-maix64" CXX="gcc -maix64" CPPFLAGS="-maix64" NM="nm -X64" AR="ar -X64" LDFLAGS="-L/usr/ccs/bin/ld" --prefix=/usr/local/share/bld/apache2 --enable-ssl=shared --with-ssl=/usr/local/share/bld/ssl --enable-deflate=shared --with-z=/usr/local/share/bld/zlib --enable-mods-shared=all --with-expat=builtin --with-pcre=/usr/local/share/bld/pcre --with-included-apr --enable-v4-mapped



The above command executed successfully. While executing the make command follwing error is reported:


bison -pap_expr_yy --defines=/usr/local/share/bld/httpd-2.4.3/server/util_expr_parse.h -o /usr/local/share/bld/httpd-2.4.3/server/util_expr_parse.c /usr/local/share/bld/httpd-2.4.3/server/util_expr_parse.y
/usr/local/share/bld/httpd-2.4.3/server/util_expr_parse.y:28.1: invalid character: `%'
/usr/local/share/bld/httpd-2.4.3/server/util_expr_parse.y:28.2-4: parse error, unexpected "identifier"
make: 1254-004 The error code from the last command is 1.