Fix log2f conflict.

love/src/jni/Android.mk

@@ -1 +1,2 @@
+NDK_R17 := $(shell python $(call my-dir)/detect_ndkrel.py $(NDK_ROOT)/source.properties 17)
 include $(call all-subdir-makefiles)

love/src/jni/detect_ndkrel.py

@@ -0,0 +1,20 @@
+import sys
+import re
+
+def main(argv):
+    if len(argv) > 1:
+        # argv[0] = source.properties
+        # argv[1] = desired NDK version
+        f = open(argv[0], "r")
+        contents = f.read()
+        f.close()
+        matches = re.findall("Pkg.Revision = (\d+)", contents)
+        if len(matches) >= 1 and int(matches[0]) >= int(argv[1]):
+            print("yes")
+        else:
+            print("no")
+    else:
+        print("unknown")
+
+if __name__ == "__main__":
+   main(sys.argv[1:])

love/src/jni/openal-soft-1.18.2/Android.mk

@@ -8,11 +8,6 @@ LOCAL_CFLAGS    := -DAL_ALEXT_PROTOTYPES -DAL_BUILD_LIBRARY -D_GNU_SOURCE=1 -D_P
 
 LOCAL_CPPFLAGS  := ${LOCAL_CFLAGS}
 
-ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
-	# ARM64 have log2f function
-	LOCAL_CFLAGS += -DHAVE_LOG2F
-endif
-
 LOCAL_C_INCLUDES  :=  \
 	${LOCAL_PATH}/include \
 	${LOCAL_PATH}/common \
@@ -42,4 +37,14 @@ LOCAL_SRC_FILES := \
 
 LOCAL_LDLIBS := -lOpenSLES
 
+ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
+	# ARM64 have log2f function
+	LOCAL_CFLAGS += -DHAVE_LOG2F
+else ifeq ($(NDK_R17),yes)
+	# NDK r17 and later always add log2f
+	LOCAL_CFLAGS += -DHAVE_LOG2F
+	# Also make sure to link with android_support
+	LOCAL_LDLIBS += -landroid_support
+endif
+
 include $(BUILD_SHARED_LIBRARY)