Re: [Plplot-devel] KCC flags

[Maurice L. <mj...@ga...>]

To follow up on this discussion of yesterday:

- Tried autoscan.  Contained some interesting info, some of which might be
handy in rooting out additional non-portabilities.  But most of it had to
do with non-ANSI C constructs and are therefore false positives AFAIAC.
Didn't help out with any of my current problems, which are:

- Using autoconf's built-in support of KCC to fix the build under Solaris,
and improve it elsewhere.  So I added:

# List of C++ compilers to look for, in order.  The default (autconf 2.57) is:
# g++ c++ gpp aCC CC cxx cc++ cl FCC KCC RCC xlC_r xlC
AC_PROG_CXX(KCC g++ c++ gpp aCC CC cxx cc++ cl FCC RCC xlC_r xlC) 

to configure.ac, chopping out the previous part.  Didn't do a thing that I
could tell except automatically get the compiler right, which *is* nice.
So I'll replace the manual check by this, but still handle options as I
mentioned previously.

Back to Solaris.. the KCC shared lib build is still busted, as mentioned
because of this:

/bin/bash ../../libtool --mode=compile KCC -DHAVE_CONFIG_H -I. -I. -I../../include -I../../include  -I../../libltdl   -g -c -o plstream.lo `test -f 'plstream.cc' || echo './'`plstream.cc
mkdir .libs
KCC -DHAVE_CONFIG_H -I. -I. -I../../include -I../../include -I../../libltdl -g -c plstream.cc  -fPIC -DPIC -o .libs/plstream.lo
KCC: Option -fPIC not recognized.
cc: illegal suffix of output filename

(the -fPIC warning is harmless).  So I took your advice and tried using cc
instead of gcc by inserting the following line in configure.ac:

AC_PROG_CC(cc cl egcs gcc)

which overrides the default search order, like AC_PROG_CXX.
Then the build went:

...
cc -DHAVE_CONFIG_H -I. -I. -I../include -I../include -I../libltdl -g -c plcont.c  -KPIC -DPIC -o plcont.o
mv -f plcont.o .libs/plcont.lo
...

So you see, there is logic in there to build the object then move it, use it
in the new location, and clean up appropriately.

The question is, how can I trigger this behavior for KCC?

-- 
Maurice LeBrun    mj...@ga...
Research Organization for Information Science and Technology of Japan (RIST)