riedl@cs.purdue.EDU (John T Riedl) (10/10/89)
When I feed the Gnu preprocessor files that cause arbitrarily deep nesting of #include, it starts telling me that it can't find subsequent #includes, but doesn't explain that the nesting is too deep. An improved error message will save time in the future. Example: try the following files: --------t.c------- #include "t.h" #include "t2.h" ---------t.h------- #include "t1.h" --------t1.h----- #include "t.h" --------t2.h----- -------the end------- gcc's error message on a sequent is no help in finding the problem: ------------- [ medusa : riedl ] gcc-1.36 -v t.c gcc version 1.36 /usr/local/gnu/lib/gcc-1.36.lib/gcc-cpp -v -undef -D__GNUC__ -Dunix -Di386 -Dsequent -D__unix__ -D__i386__ -D__sequent__ t.c /usr/tmp/cc029941.cpp GNU CPP version 1.36 t1.h:1: t.h: No such file or directory -------------- gcc on a Sun 3/50 does a little better: ------------- [ raid2 : riedl ] gcc-1.36 -v t.c gcc version 1.36 /usr/local/gnu/lib/gcc-1.36.lib/gcc-cpp -v -undef -D__GNUC__ -Dmc68000 -Dsun -D unix -D__mc68000__ -D__sun__ -D__unix__ -D__HAVE_68881__ -Dmc68020 t.c /usr/tmp/ cca10249.cpp GNU CPP version 1.36 t1.h:1: t.h: Too many open files [ raid2 : riedl ] ----------- cc produces a much better message: ------------- [ medusa : riedl ] cc -v t.c cpp t.c /tmp/ctm0623981059001674 ./t.h: line 2: Unreasonable include nesting rm -f /tmp/ctm0623981059001673 /tmp/ctm0623981059001674 ----------- Please respond via mail, since I don't usually read this list. Thanks! John