After running configure I notice that an empty file "D" is left around as trash. I investigated and and found the following. This occures on HP-UX using the native ANSI compiler and running the latest test automake-1.4b and the new dependency tracking code. The configure script runs the following snippet: depmode=gcc source=conftest.c object=conftest.o depfile=conftest.Po tmpdepfile=conftest.TPo /bin/sh config/depcomp cc -c conftest.c -o conftest.o This occurs inside the test that prints "checking dependency style". Expanding on this a little by using sh -x: depmode=gcc source=conftest.c object=conftest.o depfile=conftest.Po tmpdepfile=conftest.TPo /bin/sh -x config/depcomp cc -c conftest.c -o conftest.o + test -z gcc + test -z conftest.c + test -z conftest.o + depfile=conftest.Po + tmpdepfile=conftest.TPo + rm -f conftest.TPo + test gcc = hp + test gcc = dashXmstdout + test -z + gccflag=-MD, + cc -c conftest.c -o conftest.o -Wp,-MD,conftest.TPo cpp: error 3: Too many arguments to cpp. + stat=1 + rm -f conftest.TPo + exit 1 This leaves an empty file called "D" in the current directory. I don't know why it is testing for depmode=gcc with the native ANSI C compiler. I don't have gcc in my path and so it does not find one. I believe that to be the root of this problem. This should be depmode=hp instead of depmode=gcc for this configuration. Checking the man page for cpp on hpux and I see the following: : -M[makefile] Generates makefile dependencies and sends the results : to the file makefile. If the argument makefile is : omitted, the result is sent to the standard error. So everything is making sense. -Wp passes option to cpp and the -M option to cpp is sending dependencies to the file "D" and then complaining that 'conftest.TPo' is too many arguments. But the syntax used was gcc syntax and a completely different result was expected. If the depmode is set to hp then things work better here. I should dig into this some more but this is where I am stopping for the night and wanted to report this minor problem. This appears to be a spurious result as to all other intents and purposes everything configures and works well from this point on. BTW... I like the new dependency code! I can now swap between HP-UX ANSI C and Linux GCC interchangeably. Bob Proulx
