Hi,
when I apply my patch and then modify my Makefile to also say:
CPPFLAGS += -I${HOME}/.guix-profile/avr/include
-L${HOME}/.guix-profile/avr/lib/avr5 -L${HOME}/.guix-profile/avr/lib
-B${HOME}/.guix-profile/avr/lib
CPPFLAGS += -I..
then for Arduino (after applying my patch) I still get:
PluggableUSB.cpp:(.text._Z12PluggableUSBv+0xc): undefined reference to
`__cxa_guard_acquire'
PluggableUSB.cpp:(.text._Z12PluggableUSBv+0x2c): undefined reference to
`__cxa_guard_release'
This is because it uses (see
<https://github.com/arduino/Arduino/blob/master/hardware/arduino/avr/cores/arduino/PluggableUSB.cpp#L102>):
PluggableUSB_& PluggableUSB()
{
static PluggableUSB_ obj; /* editor's note: uh oh!! */
return obj;
}
It works just fine (it also links fine; everything OK) when I change it to:
static PluggableUSB_ obj;
PluggableUSB_& PluggableUSB()
{
return obj;
}
Should that have worked as-is?
Also, why is avr-gcc also setting native-search-paths (even though it's a cross
compiler)? Doesn't seem to make a difference and is also rather strange...
What does the search-paths form do? Does it set environment variables in the
profile as well?
