makefile variable

[juky ma]

all source code file are in the path(/opt/Hi3520_SDK_V1.0.5.0.c2/
mpp_master/sample/hishow888/),a makefile also is here,all lib files
are in the path(/opt/Hi3520_SDK_V1.0.5.0.c2/mpp_master/lib/),makefile
looks like this
MPP_PATH:=$(PWD)/../..
LIB_PATH:=$(MPP_PATH)/lib
LIBS := $(LIB_PATH)/libmpi.a
$(warning test LIBS is $(LIBS ))
$(CC) $(CFLAGS) -lpthread -lm -o $@ $^ $(LIBS)

when making the makefile，a message（/opt/Hi3520_SDK_V1.0.5.0..c2/
mpp_master/sample/hishow888/../../lib/libmpi.a） is prited .and the
makefile runs ok.
in the path(/opt/Hi3520_SDK_V1.0.5.0.c2/mpp_master/sample/
hishow888/../../lib/),nothing is here,but the makefile runs ok.
I want to know what happened.please

 

[Victor Bazarov]

all source code file are in the path(/opt/Hi3520_SDK_V1.0.5.0.c2/
mpp_master/sample/hishow888/),a makefile also is here,all lib files
are in the path(/opt/Hi3520_SDK_V1.0.5.0.c2/mpp_master/lib/),makefile
looks like this
MPP_PATH:=$(PWD)/../..
LIB_PATH:=$(MPP_PATH)/lib
LIBS := $(LIB_PATH)/libmpi.a
$(warning test LIBS is $(LIBS ))
$(CC) $(CFLAGS) -lpthread -lm -o $@ $^ $(LIBS)

when making the makefile，a message（/opt/Hi3520_SDK_V1.0.5.0.c2/
mpp_master/sample/hishow888/../../lib/libmpi.a） is prited .and the
makefile runs ok.
in the path(/opt/Hi3520_SDK_V1.0.5.0.c2/mpp_master/sample/
hishow888/../../lib/),nothing is here,but the makefile runs ok.
I want to know what happened.please

Sorry, makefiles are not part of C++ language, and as such are
off-topic. Perhaps you can find more help in a newsgroup that deals
with gmake or your compiler or your OS... IIRC, there is a "debug"
mode/switch with which you can run the makefile with all commands output
instead of executed, try that, it might give you the idea what is not
going right.

V