classes/icecc: Disable remote pre-processing by default

Unfortunately, GCC has a number of outstanding bugs related to using -fdirectives-only, which causes a lot of errors when using Icecream. See:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47254
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88475
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89658
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91152

Until many of these are addressed, it is better to disable remote preprocessing.

---
 meta/classes/icecc.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index edb0e10434..095518115f 100644
@@ -57,7 +57,7 @@ ICECC_ENV_VERSION = "2"
 # See: https://github.com/icecc/icecream/issues/190
 export ICECC_CARET_WORKAROUND ??= "0"
 
-export ICECC_REMOTE_CPP ??= "1"
+export ICECC_REMOTE_CPP ??= "0"
 
 ICECC_CFLAGS = ""
 CFLAGS += "${ICECC_CFLAGS}"

2.21.0