Compilation issues

I'm trying to build a new version of qpopper that supports encryption
for my Aurora 2.0 server, but am running into an issue.

[root@zappa qpopper4.0.9]# sparc32bash
[root@zappa qpopper4.0.9]# ../configure --with-openssl
          * * * snip * * *
checking fcntl.h usability... no
checking fcntl.h presence... yes
configure: WARNING: fcntl.h: present but cannot be compiled
configure: WARNING: fcntl.h: check for missing prerequisite headers?
configure: WARNING: fcntl.h: proceeding with the preprocessor's result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to [email protected]. ##
configure: WARNING:     ## ------------------------------------ ##
checking for fcntl.h... yes

There are a lot of these warning during the configure phase, and while
a makefile is produced, the make fails:

[root@zappa qpopper4.0.9]# make
cd ./popper  && make all
make[1]: Entering directory `/root/qpopper4.0.9/popper'
gcc -c -I.. -I.. -I. \
        -I../mmangle -I../common -I/usr/local/ssl/include \
        -g -O2 -DHAVE_CONFIG_H  -DLINUX -DUNIX pop_dele.c -o pop_dele.o
In file included from /usr/include/stdio.h:830,
                 from pop_dele.c:24:
/usr/include/bits/stdio.h:112: error: syntax error before '(' token
/usr/include/bits/stdio.h:119: error: syntax error before '(' token
In file included from pop_dele.c:25:
/usr/include/stdlib.h:146: error: syntax error before "__nonnull"
/usr/include/stdlib.h:149: error: syntax error before "__nonnull"
/usr/include/stdlib.h:152: error: syntax error before "__nonnull"
/usr/include/stdlib.h:159: error: syntax error before "__nonnull"
          * * * snip * * *
/usr/include/stdlib.h:325: error: syntax error before '(' token
/usr/include/stdlib.h:330: error: syntax error before '(' token
/usr/include/stdlib.h:336: error: syntax error before '(' token
          * * * snip * * *
In file included from /usr/include/sys/socket.h:35,
                 from popper.h:62,
                 from pop_dele.c:29:
/usr/include/bits/socket.h:264: error: syntax error before '(' token
/usr/include/bits/socket.h:271: error: invalid type argument of `->'
/usr/include/bits/socket.h:272: error: syntax error before "if"
make[1]: *** [pop_dele.o] Error 1
make[1]: Leaving directory `/root/qpopper4.0.9/popper'
make: *** [popper_server] Error 2

Has anyone run into this before??  I can't believe the system header files
(/usr/include/stdlib.h, fer cryin' out loud) have syntax errors.  Is it
autoconf that's messed up?  cpp? gcc? configure?

Thanks for any pointers y'all can toss my way.

-- 
======================================================================
       Joe Hartley - UNIX/network Consultant - [email protected]
Without deviation from the norm, "progress" is not possible. - FZappa
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