Hello, I am using GCC 3.4.3 compiler on Red Hat Linux. My C file contains the piece of code shown bellow. The compiler variable NAME is not defined. #if (NAME == XXX) #include "include_file.h" #endif I execute the compiler to generate the dependency file using the command "gcc -M". The compiler command line does not contain -I option for a directory where "include_file.h" is located. The -I is not part of the command line because the file should not be used is NAME is not defined. The compiler generates and error: file.c:85:23: include_file.h: No such file or directory Why is the compiler tries to include the "include_file.h" file even when NAME is not defined? Thank you for your help, Naum Shapiro Staff Software Engineer Intel Telecom Europe Communications Infrastructure Group Modular Communications Platform Division 1515 Route 10 Parsippany, NJ 07054 phone: (973) 967-5122 email: naum.shapiro@xxxxxxxxx PS: The compiler version info: $ gcc -v Reading specs from /usr/lib/gcc/i386-redhat-linux/3.4.3/specs Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --disable-checking --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-java-awt=gtk --host=i386-redhat-linux Thread model: posix gcc version 3.4.3 20050227 (Red Hat 3.4.3-22.1)
