problem in recompiling

[Parag R Naik]

Hi all, I am having a problem compiling mod_perl 1.26 src with apache 1.3.22 src. The problem on running make occur at the following command   gcc -c -I../.. -I/usr/local/ActivePerl-5.6/lib/5.6.1/i686-linux-thread-multi/COR E -I../../os/unix -I../../include   -DLINUX=22 -I/usr/include/db1 -DMOD_PERL -DU SE_PERL_SSI -DUSE_REENTRANT_API -D_POSIX_C_SOURCE=199506L -D_REENTRANT -fno-stri ct-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DUSE_HSREGEX -DNO_DL_NEE DED -DUSE_REENTRANT_API -D_POSIX_C_SOURCE=199506L -D_REENTRANT -fno-strict-alias ing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 `../../apaci` os.c   In file included from /usr/include/sys/sem.h:27,                  from ../../include/ap_config.h:493,                  from os.c:6: /usr/include/sys/ipc.h:28: warning: #warning "Files using this header must be co mpiled with _SVID_SOURCE or _XOPEN_SOURCE" In file included from /usr/include/sys/sem.h:27,                  from ../../include/ap_config.h:493,                  from os.c:6: /usr/include/sys/ipc.h:34: parse error before `ftok' /usr/include/sys/ipc.h:34: warning: data definition has no type or storage class In file included from ../../include/ap_config.h:493,                  from os.c:6: /usr/include/sys/sem.h:50: parse error before `__key' make[4]: *** [os.o] Error 1 make[3]: *** [subdirs] Error 1 make[2]: *** [build-std] Error 2 make[1]: *** [build] Error 2 make: *** [apaci_httpd] Error 2   can anybody help me out with this The Linux I am using is Redhat 6.22 Kernel version 2.2.14   Thanks