The compiler error is:
/usr/include/bluetooth/bluetooth.h::131:9: error: invalid conversion from 'void*' to 'bt_get_le64(void*)::<anonymous struct>*'
...
The reason is that C++, in contrast to C, does not allow conversion of
void * to anything, and this code gets compiled as C++ when the app is
written in C++. The macro with the assignment itself is older, but only
recent Bluez starts to use it in inline functions, thus triggering the
problem.
This patch keeps the "struct __attribute__((packed))" magic and merely
changes the typecast so that it works in C and C++. Like the existing
macro this patch relies on support for typeof.
---
lib/bluetooth.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/bluetooth.h b/lib/bluetooth.h
index 5bd4f03..2fee4ac 100644
--- a/lib/bluetooth.h
+++ b/lib/bluetooth.h
@@ -113,7 +113,7 @@ enum {
({ \
struct __attribute__((packed)) { \
typeof(*(ptr)) __v; \
- } *__p = (void *) (ptr); \
+ } *__p = (typeof(__p)) (ptr); \
__p->__v; \
})
@@ -121,7 +121,7 @@ enum {
do { \
struct __attribute__((packed)) { \
typeof(*(ptr)) __v; \
- } *__p = (void *) (ptr); \
+ } *__p = (typeof(__p)) (ptr); \
__p->__v = (val); \
} while(0)
--
1.7.7.3
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
