我正在尝试在 Red Hat Enterprise Linux 5.5 上的主目录中编译 Perl 5.12.1。但是，当我尝试制作时，最终收到以下错误：
Making IO (all)
make[1]: Entering directory `/users/rmi1/build/perl-5.12.0/dist/IO'
make[1]: Leaving directory `/users/rmi1/build/perl-5.12.0/dist/IO'
Making all in dist/IO
make all PERL_CORE=1 LIBPERL_A=libperl.a LINKTYPE=dynamic
make[1]: Entering directory `/users/rmi1/build/perl-5.12.0/dist/IO'
cc -c -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -DVERSION=\"1.25_02\" -DXS_VERSION=\"1.25_02\" -fPIC "-I../.." IO.c
IO.xs: In function ‘XS_IO__Poll__poll’:
IO.xs:249: error: invalid application of ‘sizeof’ to incomplete type ‘struct pollfd’
IO.xs:253: error: invalid use of undefined type ‘struct pollfd’
IO.xs:253: error: dereferencing pointer to incomplete type
IO.xs:255: error: …