problems installing with make

hello,
i'm trying to install mod_layout on apache 1.3.29 under redhat 9 but i ever got this error:

[root@plain mod_layout-3.2.1]# make
`apxs -q CC` -I`apxs -q INCLUDEDIR` `apxs -q CFLAGS`   -c mod_layout.c -Wall -DDEBUG  
In file included from mod_layout.h:16,
                 from mod_layout.c:6:
/usr/include/httpd/buff.h:116: parse error before "ap_pool"
/usr/include/httpd/buff.h:116: warning: no semicolon at end of struct or union
/usr/include/httpd/buff.h:136: parse error before '}' token
/usr/include/httpd/buff.h:151: parse error before "ap_bcreate"
/usr/include/httpd/buff.h:151: parse error before '*' token
/usr/include/httpd/buff.h:151: warning: type defaults to `int' in declaration of `ap_bcreate'
/usr/include/httpd/buff.h:151: warning: data definition has no type or storage class
/usr/include/httpd/buff.h:152: parse error before "ap_bpushfd"
/usr/include/httpd/buff.h:152: warning: type defaults to `int' in declaration of `ap_bpushfd'
/usr/include/httpd/buff.h:152: warning: data definition has no type or storage class
/usr/include/httpd/buff.h:156: parse error before "ap_bsetopt"
/usr/include/httpd/buff.h:156: warning: type defaults to `int' in declaration of `ap_bsetopt'
/usr/include/httpd/buff.h:156: warning: data definition has no type or storage class

.......


mod_layout.c:879: warning: (near initialization for `layout_module')
mod_layout.c:880: warning: excess elements in scalar initializer
mod_layout.c:880: warning: (near initialization for `layout_module')
mod_layout.c:888: warning: excess elements in scalar initializer
mod_layout.c:888: warning: (near initialization for `layout_module')
mod_layout.c:888: warning: data definition has no type or storage class
make: *** [mod_layout.o] Error 1

i know that this error was explained on another post, but i tried to download cvs and when i make, i got more errors.

could anyone help me please ?