Re: Fwd: sed porting trouble

[Paolo Bonzini]

On 10/01/2010 03:10 PM, Schmitz, Joachim wrote:
> Hi Paolo
>
> In general the entire documentation for thie platform is here:
> http://www.hp.com/go/nonstop-docs, In this case you'd probably want
> to look at the (currently) latest version of the C/C++ Programmer's
> Guide
> http://bizsupport1.austin.hp.com/bc/docs/support/SupportManual/c02128447/c02128447.pdf
> , Chapter 13 Compiler Pragmas.
>
> Hmm, reading is of advantage sometime, I just see that instead of the
> pragma, I can use a compiler switch -Wcolumns=c, so I should be able
> to get around that issue without those 2 patches, by just tweaking my
> cc wrapper script slightly (i.e. adding a -Wcolumns=32767, the
> maximum, to the switches it uses to call the real c89/c99 C/C++
> compiler). (Testing....) Rats! It doesn't work! Seems the Compiler
> switch does not precedence over the pragma.

Here it is (page 188):

"At each #include directive, each included file initially assumes the 
last-column value in effect when the #include directive appeared. If a 
COLUMNS pragma is specified in the included file, the compiler uses the 
last-column value specified."

This basically means that the NonStop system includes (by enforcing 
#pragma column 80) only expect to include other NonStop system includes. 
 This is clearly not the case in gnulib.  So, it looks like we must 
make sure that the system-header replacements have 80-columns lines.  Sigh.

Paolo