Dear all: I am trying to change some source files in the GCC compiler and getting a compilation error. In the file "gimple.h", I am adding extern int x; // the x is global and should be accesable from other files as well. Then I called x in the "tree_into_ssa.c". However, when I compile the gcc compiler using the make command I get the following massage: undefined refernce to "x". Any comments??? Thanks, Abid -- Regards, Wei Li
