Why is it that using '+=' inside an 'if' with automake causes errors?
Here is an example makefile.am illustrating the offending behavior:
DUMMY = a
if SOME_CONDITION
DUMMY += b
endif
---
This prompts automake to produce the following error:
Makefile.am:1: DUMMY was already defined in condition TRUE, which implies
condition SOME_CONDITION
DUMMY (User, where = 1) +=
{
TRUE => a
}
Since 'DUMMY' is previously unconditionally defined, I don't see a way that
it could cause an error later. Automake should allow the definition.
I know that Automake likes to collect all definitions of a particular macro
into a single definition. Couldn't Automake make an exception with '+=' in
conditionals?
Can anyone point to me what I am doing wrong or provide a workaround?
Thank you,
Jean-Bernard Delva
