Trouble with too many '-W' flags from ./configure

[Giovanni A. Cone]

Hello parallel-netCDF maintainers:

    I am in the process of building parallel-netCDF against 
all our provided compilers and related MPI library builds. 
I have encountered trouble with the PGI compiler not 
successfully building due to it not gracefully ignoring the 
plethora of "-W" flags that are set in the "configure.in" 
file around lines 80-82.  From my understanding of 
Autotools, that modification of the CFLAGS variable 
shouldn't even be happening if I pass the "--disable-strict" 
flag to the "./configure".  What I have in my ./configure 
invocation is:

./configure --prefix=$INST_PATH  --enable-largefile 
--with-mpi=$MPI_ROOT --disable-strict

Note: env vars, CC, FC are properly set.

However, it seems that either that the configure script is 
still modifying the CFLAGS to have all those "-W" flags, or 
there is something wrong with the "configure.in" script.

I should note that builds against the Intel compilers 
(11.1.072 to 13.0.1) and GNU compilers (4.4.x to 4.7.2) all 
seem to happily ignore these irrelevant "-W" flags just 
fine.  I'm guessing PGI is just picky, and I'll submit a bug 
report to them as well.  However, there is something not 
quite right here
that you should perhaps investigate.  I can work around this 
by doing the following in my build scripts:

sed -i '80,82 s/^/dnl /' configure.in

for the time being.

Thank you for your consideration on this matter.

-- 
!   Giovanni "Vann" Cone
!   LANL HPC-3 Consultant
!   TA-3, BLDG 2327, RM 1128
!   Schedule B
!...............................
!   I fight for the users!
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