equivalent of LD_LIBRARY_PATH to specify header file locations

[kamaraju kusumanchi <raju.mailinglists@xxxxxxxxx>]

Instead of using -L, I frequently use LD_LIBRARY_PATH to specify the
location of the libraries.
Is there a similar environment variable for specifying the location of
the header files? Normally I use -I option for this, but I am looking
for an equivalent environment variable.

thanks
raju