在android ndk中定义sem_t

Question

I am porting some code from my libs in C++.

Note that android include library has the semaphore.h.

I include the files but when compiling it gives me an error: 'sem_t' does not name a type.

For example in linux would define my semaphore like:

    sem_t id;

Then would call:

    sem_init(&id, 0, initialCount);

In my Application.mk I am using:

    APP_STL := gnustl_static

Thanks in advance.

Answer 1

Try to compile with -lz -lm -llog -lc -L$(call host-path, $(LOCAL_PATH))/$(TARGET_ARCH_ABI)

or just add the following line to Your android.mk :

LOCAL_LDLIBS += -lz -lm -llog -lc -L$(call host-path, $(LOCAL_PATH))/$(TARGET_ARCH_ABI) 

It works for me