I am trying to build a module for apache and I'm getting an error which does not make sense to me. It seems the error is caused because a file is not found. But the file is where it should be as referenced with -I flag in the 'make' file. My environment is gcc-3.2.2-5, RH9, openssl-0.9.7a-5, krb5-devel-1.2.7-14, resin-2.1.11 when I do ls -l I can see the file, as shown below: $ ls -l /usr/kerberos/include/krb5.h $ -rw-r--r-- 1 root root 112782 Mar 31 2003 /usr/kerberos/include/krb5.h >>>>>>>>>>>>>>>>>>> THE ERROR from make <<<<<<<<< gcc -g -O2 -DRESIN_HOME=\"/usr/resin\" -I -I/usr/kerberos/include -I/usr/java/include -I/usr/java/include/linux -I../common -DCPU=\"i386\" -DOS= -c -o memory.o memory.c gcc -g -O2 -DRESIN_HOME=\"/usr/resin\" -I -I/usr/kerberos/include -I/usr/java/include -I/usr/java/include/linux -I../common -DCPU=\"i386\" -DOS= -c -o ssl.o ssl.c In file included from /usr/include/openssl/ssl.h:179, from ssl.c:62: /usr/include/openssl/kssl.h:72:18: krb5.h: No such file or directory In file included from /usr/include/openssl/ssl.h:179, from ssl.c:62: >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Thanks in advance for your help