C_INCLUDE_PATH not set

[tskisner]

For all compilers we care about (GCC, Intel, IBM), we can use C_INCLUDE_PATH and CPLUS_INCLUDE_PATH to specify directories to search for headers. Add this to modulefiles and package shell snippets. Need to find equivalent variables for fortran module search.

[tskisner]

Looks like just setting CPATH is equivalent to these variables (and cuts in half the environment polution).

[esheldon]

In many cases that is true, but I have found cases where either only C_INCLUDE_PATH works or only CPATH works.

There is a similar issue with LD_LIBRARY_PATH versus LIBRARY_PATH. I haven't tracked down the history of this split.

I'm sorry I can't give specific examples.
-e

[tskisner]

ok, good to know your experiences. CPATH seems to work for the gcc versions I have tried so far. I'll try to finish up some remaining tests today and then install a full test on carver.

-Ted

On Dec 10, 2012, at 7:41 PM, esheldon wrote:

In many cases that is true, but I have found cases where either only C_INCLUDE_PATH works or only CPATH works.

There is a similar issue with LD_LIBRARY_PATH versus LIBRARY_PATH. I haven't tracked down the history of this split.

I'm sorry I can't give specific examples.
-e

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[tskisner]

Conversion to CPATH and LIBRARY_PATH now complete. CPATH works fine in all packages, including having the fortran compiler find module files. Still have to re-install at NERSC (shortly).

[tskisner]

Looks like I spoke too soon. gfortran does not use CPATH, but does accept "-I

" include directives. There is some discussion on the gcc forums. Re-opening until I have a resolution for this.