CODEWITHSUNDEEP
androidmakefileandroid-ndkndk-build
BORSHEVIK
BORSHEVIK

Reputation: 824

Why $(call my-dir) in Android.mk file returned wrong path?

When I try to compile .so to a bibiliotek, I receive an error that the way is incorrect and instead of the local way expected by me I see a way to NDK, in what a problem, here my MK-file:

include $(CLEAR_VARS)

LOCAL_PATH := $(call my-dir)
@echo "Local path = $LOCAL_PATH"

SCRIPT := $(LOCAL_PATH)/LuaJIT/build.sh
ECHO_RESULT1 := $(shell $(SCRIPT))
#ECHO_RESULT := $(shell ($(LOCAL_PATH)/LuaJit/build.sh))
@echo "ECHO_RESULT1=$(ECHO_RESULT1)"

include $(CLEAR_VARS)
LOCAL_MODULE    := libluajit
LOCAL_SRC_FILES := $(LOCAL_PATH)/jnlua/src/libluajit.a
include $(PREBUILT_STATIC_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := libjnlua
LOCAL_C_INCLUDES += $(LOCAL_PATH)/LuaJit/src
LOCAL_SRC_FILES := $(LOCAL_PATH)/jnlua/src/jnlua.c
LOCAL_LDLIBS := -llog
LOCAL_CFLAGS := -O2 -Wall -DLUA_COMPAT_ALL
#LOCAL_SHARED_LIBRARIES := libjavavm 
LOCAL_STATIC_LIBRARIES := libluajit

# POSIX as we're on linux, and compatibility mode in case you'll be running scripts written for LUA <5.2

include $(BUILD_SHARED_LIBRARY)

Here that I receive on an output:

11:30:47 **** Incremental Build of configuration Default for project jnlua-android ****
"C:\\Users\\Dev1\\Downloads\\android-ndk-r10e-windows-x86_64\\android-ndk-r10e\\ndk-build.cmd" V=1 all all 
Android NDK: ERROR:jni/Android.mk:luajit: LOCAL_SRC_FILES points to a missing file    
process_begin: CreateProcess(NULL, C:/Users/Dev1/Downloads/android-ndk-r10e-windows-x86_64/android-ndk-r10e/build/core/LuaJIT/build.sh, ...) failed.
C:/Users/Dev1/Downloads/android-ndk-r10e-windows-x86_64/android-ndk-r10e/build/core/prebuilt-library.mk:45: *** Android NDK: Aborting    .  Stop.
Android NDK: Check that C:/Users/Dev1/Downloads/android-ndk-r10e-windows-x86_64/android-ndk-r10e/build/core/jnlua/src/libluajit.a exists  or that its path is correct   

11:30:47 Build Finished (took 122ms)

Upvotes: 5

Views: 7528

Answers (3)

Alex Cohn
Alex Cohn

Reputation: 57173

LOCAL_PATH := $(call my-dir)

must be the first thing your Android.mk file does. This call extracts the path of the latest included makefile, and after include $(CLEAR_VARS), it will get the path of $(CLEAR_VARS) file (ndk/build/core) instead of your jni directory.

As @alijandro points out, LOCAL_PATH is explicitly absent from the long list of LOCAL_ variables that are reset by include $(CLEAR_VARS).

Upvotes: 1

alijandro
alijandro

Reputation: 12147

In order to let LOCAL_PATH point to the right location, you have to assign at the top of Android.mk file, before include $(CLEAR_VARS), CLEAR_VARS doesn't clear LOCAL_PATH, see the documentation.

The CLEAR_VARS variable points to a special GNU Makefile that clears many LOCAL_XXX variables for you, such as LOCAL_MODULE, LOCAL_SRC_FILES, and LOCAL_STATIC_LIBRARIES. Note that it does not clear LOCAL_PATH. This variable must retain its value because the system parses all build control files in a single GNU Make execution context where all variables are global.

Upvotes: 0

andy
andy

Reputation: 107

cd to the jni directory and call ndk-build, that worked for me.

Upvotes: 1

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