Bug in integrated cpp

[Kaveh R. Ghazi]

With last night's CVS, the following code:

 > #include <stdio.h>
 >  
 > int main()
 > {
 >   printf ("hello world\n");
 >   return 0;
 > }



compiled as a C++ program (via gcc -save-temps -pedantic foo.cc) yields:

cc1plus: Output filename specified twice
foo.cc: In function `int main()':
foo.cc:5: `printf' undeclared (first use this function)
foo.cc:5: (Each undeclared identifier is reported only once for each
function 
   it appears in.)

(The fact that I used -save-temps is the trigger.)


Whereas when compiled as a C program it says:

/usr/include/stdio.h:1:28: warning: extra tokens at end of #line directive

That's triggered by -pedantic.  I don't know if the above warning is
valid or not.  But I don't think so.

Anyway I'd hazard a guess, at least for the C++ case, that there is a
spec file problem with -save-temps WRT the integrated preprocessor.
The input file appears twice and the second time it doesn't get read
in by cpp due to the input file caching cleverness.  I don't quite
grok the spec files though, so I'll leave it to you for finding a fix.

		--Kaveh

PS: this seems platform independant, I saw this on solaris2.7, irix6.2
and x86-linux-gnu.

--
Kaveh R. Ghazi			Engagement Manager / Project Services
ghazi@caip.rutgers.edu		Qwest Internet Solutions