NDK 12b bug, yasm: warning: can open only one input file, only the last file will be processed,

[Xu Jianbin]

 When I complile libjpeg-turbo for x86 and x86_64, 

I saw yasm warnings like below: 
 /cygdrive/c/android-ndk-r12b/prebuilt/windows-x86_64/bin/yasm -I../../packages/libjpeg-turbo-android-7.1.1_r13/simd -I../../packages/libjpeg-turbo-android-7.1.1_r13 -isystem C:/android-ndk-r12b/platforms/android-16/arch-x86/usr/include -f elf32 -m x86 ../../packages/libjpeg-turbo-android-7.1.1_r13/simd/jccolor-mmx.asm -o ./objsout/debug/local/x86/objs-debug/jpeg-turbo_static/simd/jccolor-mmx.o

yasm: warning: can open only one input file, only the last file will be processed

I think that yasm cant't recognize the argument "-isystem", so I don't found out -isystem in yasm help.

But yams listed -i and -I.

The asm building rule is defined build/core/definitions.mk. 

But I don't know if it's a bug. Please check it. 

   1598 # -----------------------------------------------------------------------------

   1599 # Template  : ev-compile-c-source

   1600 # Arguments : 1: single C source file name (relative to LOCAL_PATH)

   1601 #             2: target object file (without path)

   1602 # Returns   : None

   1603 # Usage     : $(eval $(call ev-compile-c-source,<srcfile>,<objfile>)

   1604 # Rationale : Internal template evaluated by compile-c-source and

   1605 #             compile-s-source

   1606 # -----------------------------------------------------------------------------

   1607 define  ev-compile-c-source

   1608 _SRC:=$$(call local-source-file-path,$(1))

   1609 _OBJ:=$$(LOCAL_OBJS_DIR:%/=%)/$(2)

   1610

   1611 _FLAGS := $$($$(my)CFLAGS) \

   1612           $$(call get-src-file-target-cflags,$(1)) \

   1613           $$(call host-c-includes,$$(LOCAL_C_INCLUDES) $$(LOCAL_PATH)) \

   1614           $$(LOCAL_CFLAGS) \

   1615           $$(LOCAL_CONLYFLAGS) \

   1616           $$(NDK_APP_CFLAGS) \

   1617           $$(NDK_APP_CONLYFLAGS) \

   1618           -isystem $$(call host-path,$$(SYSROOT_INC)/usr/include) \

   1619           -c \

   1620

   1621 _TEXT := Compile $$(call get-src-file-text,$1)

   1622 _CC   := $$(NDK_CCACHE) $$(TARGET_CC)

   1623

   1624 $$(eval $$(call ev-build-source-file))

   1625 endef

  

[Dan Albert]

Looks like you found a bug :) Filed https://github.com/android-ndk/ndk/issues/288

The warnings should be harmless so I've triaged for r15.

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