[Simulavr-devel] need help to fix some issues in build toolchain

[Klaus Rudolph]

I added today pull up support in simulavr for verilog. This feature can 
only be used with Icarus Verilog version v10 or higher.

As a result we can expect that users will install the new version in 
parallel with the old verilog version.

That will result in conflicts to find executable's and header files ( 
vpi_user.h ). Building simulavr works with manual setting the include 
path like

 CPPFLAGS=-I/opt/verilog/v10/include/ ./configure --enable-tcl 
--enable-verilog

but this will result in wrong example/verilog execution.

The ./configure find the standard installation executables but avr.vpi 
is compiled against the new header.

It would be nice if someone can support a additional configure parameter 
to add the path to an additional verilog installation for header and 
executable.




Thanks!
 Klaus