autoconf / configure warning

[Volker Gaibler]

Hello,

while building plplot-5.2.1 (during run of ./configure) I see the 
following warning:

checking for tcl.h... /usr/local/include/tcl.h
checking for libtcl... /usr/lib/libtcl8.4.so
checking for itcl.h... /usr/local/include/itcl.h
checking itclDecls.h usability... no
checking itclDecls.h presence... yes
configure: WARNING: itclDecls.h: present but cannot be compiled
configure: WARNING: itclDecls.h: check for missing prerequisite headers?
configure: WARNING: itclDecls.h: proceeding with the preprocessor's result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------------ ##
checking for itclDecls.h... yes

Is this due to my installed version of the specific file or due to the 
configure script (respectively autoconf)?

Cheers,
Volker




-- 
 Volker Gaibler                     address@hidden
 Landessternwarte Königstuhl        phone  +49 6221 509-263
 69117 Heidelberg                   fax    +49 6221 509-202
 Germany                            http://www.lsw.uni-heidelberg.de
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