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[Anibal Limón <limon.anibal@xxxxxxxxx>]

Hi folks,

I tried to compile libmodbus in OpenBSD system and i found a bug.

The problem is the next:

When gcc tries to compile src/modbus-rtu.c shows the next msg:

Making all in src
  CC     modbus-rtu.lo
modbus-rtu.c: In function '_modbus_rtu_connect':
modbus-rtu.c:702: error: 'MODBUS_RTU_RS232' undeclared (first use in
this function)
modbus-rtu.c:702: error: (Each undeclared identifier is reported only once
modbus-rtu.c:702: error: for each function it appears in.)

I view the src/modbus-rtu.h and only defined MODBUS_RTU_RS232 for
Linux systems,
if you define this for other Unix systems the compilation don't fail
and all the tests run successful.

I'll awaiting for comments.

Thanks.