Hi Neels, Holger,
@vadim, could you fix this to not use CFLAGS? Look around in the Makefile.am s to find the proper way to do it, I guess.
There is the main problem that automake does not support per-object flags :(
According to https://www.gnu.org/software/automake/ manual/html_node/Per_002dObject-Flags.html we can only specify per-program and per-library compilation flags. In OsmoTRX we have several static libraries for specific architectures. In libosmocore, we can not go the same way, because it's a shared library.
Keeping this in mind, I found a way to use per-object flags on Stack Overflow. The solution was to use the Target-specific Variable Values feature of GNU Make.
I thought "CFLAGS +=" will not overwrite anything... So, let me some time to find a proper solution. If you have any ideas, please let me know.
With best regards, Vadim Yanitskiy.