Dear Sir/ Madam,       I'm not sure if I wrote to a right party..        I've encounter a problem while compile the program, mod_perl.     I can successfully compile the mod_ssl and Apache v1.3.9 without any problem.     But when I try to compile the mod_perl v1.21 into Apache Source in order to include this program, the makefile seems not really like the GCC v2.95.2. It got the following error message :-   Configure mod_perl with ../apache_1.3.9/src ? [y] Shall I build httpd in ../apache_1.3.9/src for you? [y] Appending mod_perl to src/Configuration Using config file: /source/javaserver/mod_perl-1.21/src/Configuration Creating Makefile  + configured for Linux platform  + setting C compiler to gcc  + setting C pre-processor to gcc -E  + checking for system header files  + adding selected modules  + checking sizeof various data types  + doing sanity check on compiler and options ** A test compilation with your Makefile configuration ** failed. This is most likely because your C compiler ** is not ANSI. Apache requires an ANSI C Compiler, such ** as gcc. The above error message from your compiler ** will also provide a clue.     It's great the if you can help me to solve this problem, since I've asked Apache while they said this problem should related to GCC and not them...       Thanks again for your patient and awaiting for your reply.   Best Regards,   Rolland Wong System Adminstrator Linkmark Technology Ltd.