没有规则可以使目标'-L/usr/local/lib'

编程问答 2022-06-01

问题描述

我在尝试将 opencv 链接到由 Matlab Coder 生成的 CPP 项目时遇到问题。在项目自动生成的 Makefile 中，我将 pkg-config --cflags opencv 添加到 CFLAGS 并将 pkg-config --libs opencv 添加到 LIBS（opencv 3.4），然后给出错误“No rule to make target '-L/usr/local/库'”。任何想法如何修复错误？

PRODUCT_NAME              = runeef
MAKEFILE                  = runeef_rtw.mk
MATLAB_ROOT               = /usr/local/polyspace/R2020a
MATLAB_BIN                = /usr/local/polyspace/R2020a/bin
MATLAB_ARCH_BIN           = $(MATLAB_BIN)/glnxa64
MASTER_ANCHOR_DIR         = 
START_DIR                 = /home/dell/Documents/purefusion/codegen/exe/runeef
TGT_FCN_LIB               = ISO_C++11
SOLVER_OBJ                = 
CLASSIC_INTERFACE         = 0
MODEL_HAS_DYNAMICALLY_LOADED_SFCNS = 
RELATIVE_PATH_TO_ANCHOR   = .
C_STANDARD_OPTS           = -fwrapv -ansi -pedantic -Wno-long-long
CPP_STANDARD_OPTS         = -fwrapv -std=c++11 -pedantic

###########################################################################
## TOOLCHAIN SPECIFICATIONS
###########################################################################

# Toolchain Name:          GNU gcc/g++ | gmake (64-bit Linux)
# Supported Version(s):    
# ToolchainInfo Version:   2020a
# Specification Revision:  1.0
# 
#-------------------------------------------
# Macros assumed to be defined elsewhere
#-------------------------------------------

# C_STANDARD_OPTS
# CPP_STANDARD_OPTS

#-----------
# MACROS
#-----------

WARN_FLAGS         = -Wall -W -Wwrite-strings -Winline -Wstrict-prototypes -Wnested-externs -Wpointer-arith -Wcast-align
WARN_FLAGS_MAX     = $(WARN_FLAGS) -Wcast-qual -Wshadow
CPP_WARN_FLAGS     = -Wall -W -Wwrite-strings -Winline -Wpointer-arith -Wcast-align
CPP_WARN_FLAGS_MAX = $(CPP_WARN_FLAGS) -Wcast-qual -Wshadow

TOOLCHAIN_SRCS = 
TOOLCHAIN_INCS = 
TOOLCHAIN_LIBS = 

#------------------------
# BUILD TOOL COMMANDS
#------------------------

# C Compiler: GNU C Compiler
CC = gcc

# Linker: GNU Linker
LD = g++

# C++ Compiler: GNU C++ Compiler
CPP = g++

# C++ Linker: GNU C++ Linker
CPP_LD = g++

# Archiver: GNU Archiver
AR = ar

# MEX Tool: MEX Tool
MEX_PATH = $(MATLAB_ARCH_BIN)
MEX = "$(MEX_PATH)/mex"

# Download: Download
DOWNLOAD =

# Execute: Execute
EXECUTE = $(PRODUCT)

# Builder: GMAKE Utility
MAKE_PATH = %MATLAB%/bin/glnxa64
MAKE = "$(MAKE_PATH)/gmake"


#-------------------------
# Directives/Utilities
#-------------------------

CDEBUG              = -g
C_OUTPUT_FLAG       = -o
LDDEBUG             = -g
OUTPUT_FLAG         = -o
CPPDEBUG            = -g
CPP_OUTPUT_FLAG     = -o
CPPLDDEBUG          = -g
OUTPUT_FLAG         = -o
ARDEBUG             =
STATICLIB_OUTPUT_FLAG =
MEX_DEBUG           = -g
RM                  = @rm -f
ECHO                = @echo
MV                  = @mv
RUN                 =

#--------------------------------------
# "Faster Runs" Build Configuration
#--------------------------------------

ARFLAGS              = ruvs
CFLAGS               = $(shell pkg-config --cflags opencv) -c $(C_STANDARD_OPTS)  -fPIC \
                       -O3 -fno-loop-optimize -fno-aggressive-loop-optimizations
CPPFLAGS             = $(shell pkg-config --cflags opencv) -c $(CPP_STANDARD_OPTS) -fPIC \
                       -O3 -fno-loop-optimize -fno-aggressive-loop-optimizations
CPP_LDFLAGS          = -Wl,-rpath,"$(MATLAB_ARCH_BIN)",-L"$(MATLAB_ARCH_BIN)"
CPP_SHAREDLIB_LDFLAGS  = -shared -Wl,-L"$(MATLAB_ARCH_BIN)" -Wl,--no-undefined
DOWNLOAD_FLAGS       =
EXECUTE_FLAGS        =
LDFLAGS              = -Wl,-L"$(MATLAB_ARCH_BIN)"
MEX_CPPFLAGS         =
MEX_CPPLDFLAGS       =
MEX_CFLAGS           =
MEX_LDFLAGS          =
MAKE_FLAGS           = -f $(MAKEFILE)
SHAREDLIB_LDFLAGS    = -shared -Wl,--no-undefined



###########################################################################
## OUTPUT INFO
###########################################################################

PRODUCT = /home/dell/Documents/purefusion/runeef
PRODUCT_TYPE = "executable"
BUILD_TYPE = "Executable"

###########################################################################
## INCLUDE PATHS
###########################################################################

INCLUDES_BUILDINFO = -I$(START_DIR) -I/home/dell/Documents/purefusion -I$(MATLAB_ROOT)/extern/include -I$(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/include -I$(MATLAB_ROOT)/toolBox/vision/builtins/src/ocvcg/opencv/include -I/home/dell/Documents/purefusion/codegen/exe 

INCLUDES = $(INCLUDES_BUILDINFO)

###########################################################################
## DEFInes
###########################################################################

DEFInes_CUSTOM = 
DEFInes_STANDARD = -DMODEL=runeef

DEFInes = $(DEFInes_CUSTOM) $(DEFInes_STANDARD)

###########################################################################
## SOURCE FILES
###########################################################################

SRCS = $(START_DIR)/rt_nonfinite.cpp $(START_DIR)/rtGetNaN.cpp $(START_DIR)/rtGetInf.cpp $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/detectFASTCore.cpp $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/cgCommon.cpp $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/extractFreakCore.cpp $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/mwfreak.cpp /home/dell/Documents/purefusion/codegen/exe/main.cpp $(START_DIR)/runeef_rtwutil.cpp $(START_DIR)/runeef_data.cpp $(START_DIR)/runeef_initialize.cpp $(START_DIR)/runeef_terminate.cpp $(START_DIR)/runeef.cpp $(START_DIR)/colon.cpp $(START_DIR)/string1.cpp $(START_DIR)/rgb2gray.cpp $(START_DIR)/abs.cpp $(START_DIR)/histeq.cpp $(START_DIR)/minorMax.cpp $(START_DIR)/sum.cpp $(START_DIR)/imhist.cpp $(START_DIR)/bsxfun.cpp $(START_DIR)/cornerPoints_cg.cpp $(START_DIR)/FeaturePointsImpl.cpp $(START_DIR)/repmat.cpp $(START_DIR)/extractFeatures.cpp $(START_DIR)/mod.cpp $(START_DIR)/eef.cpp $(START_DIR)/remapFun.cpp $(START_DIR)/prod.cpp $(START_DIR)/imfilter.cpp $(START_DIR)/padarray.cpp $(START_DIR)/multiscaleBlendingColor.cpp $(START_DIR)/gaussian_pyramid.cpp $(START_DIR)/laplacian_pyramid.cpp $(START_DIR)/upsample.cpp $(START_DIR)/reconstruct_laplacian_pyramid.cpp $(START_DIR)/robustnormalization.cpp $(START_DIR)/sort.cpp $(START_DIR)/sortIdx.cpp

ALL_SRCS = $(SRCS)

###########################################################################
## OBJECTS
###########################################################################

OBJS = rt_nonfinite.o rtGetNaN.o rtGetInf.o detectFASTCore.o cgCommon.o extractFreakCore.o mwfreak.o main.o runeef_rtwutil.o runeef_data.o runeef_initialize.o runeef_terminate.o runeef.o colon.o string1.o rgb2gray.o abs.o histeq.o minorMax.o sum.o imhist.o bsxfun.o cornerPoints_cg.o FeaturePointsImpl.o repmat.o extractFeatures.o mod.o eef.o remapFun.o prod.o imfilter.o padarray.o multiscaleBlendingColor.o gaussian_pyramid.o laplacian_pyramid.o upsample.o reconstruct_laplacian_pyramid.o robustnormalization.o sort.o sortIdx.o

ALL_OBJS = $(OBJS)

###########################################################################
## PREBUILT OBJECT FILES
###########################################################################

PREBUILT_OBJS = 

###########################################################################
## LIBRARIES
###########################################################################

LIBS = $(MATLAB_ROOT)/bin/glnxa64/libmwjpegreader.so $(MATLAB_ROOT)/bin/glnxa64/libopencv_calib3d.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_core.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_features2d.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_flann.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_imgproc.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_ml.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_objdetect.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_video.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudaarithm.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudabgsegm.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudafeatures2d.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudafilters.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudaimgproc.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cuDalegacy.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudaobjdetect.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudaoptflow.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudastereo.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudawarping.so.3.4 $(MATLAB_ROOT)/bin/glnxa64/libopencv_cudev.so.3.4 $(shell pkg-config --libs opencv)
#/usr/local/lib/libopencv_core.so.4.5.1 /usr/local/lib/libopencv_imgcodecs.so.4.5.1 /usr/local/lib/libopencv_highgui.so.4.5.1

###########################################################################
## SYstem LIBRARIES
###########################################################################

SYstem_LIBS =  -L"$(MATLAB_ROOT)/bin/glnxa64" -lmwrgb2gray_tbb -lmwgetnumcores -lmwtbbhist -lmwgrayxform_tbb -lmwgrayto8 -lmwippfilter -lmwipp -lmwimfilter -lmwnhood -lm -lstdc++ 

###########################################################################
## ADDITIONAL TOOLCHAIN FLAGS
###########################################################################

#---------------
# C Compiler
#---------------

CFLAGS_ = -Wno-variadic-macros -Wno-variadic-macros
CFLAGS_BASIC = $(DEFInes) $(INCLUDES)

CFLAGS += $(CFLAGS_) $(CFLAGS_BASIC) 

#-----------------
# C++ Compiler
#-----------------

CPPFLAGS_ = -Wno-variadic-macros -Wno-variadic-macros
CPPFLAGS_BASIC = $(DEFInes) $(INCLUDES)

CPPFLAGS += $(CPPFLAGS_) $(CPPFLAGS_BASIC)

###########################################################################
## INLINED COMMANDS
###########################################################################

###########################################################################
## PHONY TARGETS
###########################################################################

.PHONY : all build buildobj clean info prebuild download execute


all : build
    @echo "### Successfully generated all binary outputs."


build : prebuild $(PRODUCT)


buildobj : prebuild $(OBJS) $(PREBUILT_OBJS) $(LIBS) 
    @echo "### Successfully generated all binary outputs."


prebuild : 


download : $(PRODUCT)


execute : download
    @echo "### Invoking postbuild tool "Execute" ..."
    $(EXECUTE) $(EXECUTE_FLAGS)
    @echo "### Done invoking postbuild tool."


###########################################################################
## FINAL TARGET
###########################################################################

#-------------------------------------------
# Create a standalone executable            
#-------------------------------------------

$(PRODUCT) : $(OBJS) $(PREBUILT_OBJS) $(LIBS)
    @echo "### Creating standalone executable "$(PRODUCT)" ..."
    $(CPP_LD) $(CPP_LDFLAGS) -o $(PRODUCT) $(OBJS) -Wl,--start-group $(LIBS) -Wl,--end-group $(SYstem_LIBS) $(TOOLCHAIN_LIBS) 
    @echo "### Created: $(PRODUCT)"


###########################################################################
## INTERMEDIATE TARGETS
###########################################################################

#---------------------
# SOURCE-TO-OBJECT
#---------------------

%.o : %.c
    $(CC) $(CFLAGS) -o "$@" "$<"


%.o : %.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


%.o : $(RELATIVE_PATH_TO_ANCHOR)/%.c
    $(CC) $(CFLAGS) -o "$@" "$<"


%.o : $(RELATIVE_PATH_TO_ANCHOR)/%.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


%.o : $(START_DIR)/%.c
    $(CC) $(CFLAGS) -o "$@" "$<"


%.o : $(START_DIR)/%.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


%.o : /home/dell/Documents/purefusion/%.c
    $(CC) $(CFLAGS) -o "$@" "$<"


%.o : /home/dell/Documents/purefusion/%.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


%.o : $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/%.c
    $(CC) $(CFLAGS) -o "$@" "$<"


%.o : $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/%.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


%.o : /home/dell/Documents/purefusion/codegen/exe/%.c
    $(CC) $(CFLAGS) -o "$@" "$<"


%.o : /home/dell/Documents/purefusion/codegen/exe/%.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


rt_nonfinite.o : $(START_DIR)/rt_nonfinite.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


rtGetNaN.o : $(START_DIR)/rtGetNaN.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


rtGetInf.o : $(START_DIR)/rtGetInf.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


detectFASTCore.o : $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/detectFASTCore.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


cgCommon.o : $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/cgCommon.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


extractFreakCore.o : $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/extractFreakCore.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


mwfreak.o : $(MATLAB_ROOT)/toolBox/vision/builtins/src/ocv/mwfreak.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


main.o : /home/dell/Documents/purefusion/codegen/exe/main.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


runeef_rtwutil.o : $(START_DIR)/runeef_rtwutil.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


runeef_data.o : $(START_DIR)/runeef_data.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


runeef_initialize.o : $(START_DIR)/runeef_initialize.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


runeef_terminate.o : $(START_DIR)/runeef_terminate.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


runeef.o : $(START_DIR)/runeef.cpp
    $(CPP) $(CPPFLAGS)  -o "$@" "$<"


colon.o : $(START_DIR)/colon.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"

string1.o : $(START_DIR)/string1.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


rgb2gray.o : $(START_DIR)/rgb2gray.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


abs.o : $(START_DIR)/abs.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


histeq.o : $(START_DIR)/histeq.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


minorMax.o : $(START_DIR)/minorMax.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


sum.o : $(START_DIR)/sum.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


imhist.o : $(START_DIR)/imhist.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


bsxfun.o : $(START_DIR)/bsxfun.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


cornerPoints_cg.o : $(START_DIR)/cornerPoints_cg.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


FeaturePointsImpl.o : $(START_DIR)/FeaturePointsImpl.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


repmat.o : $(START_DIR)/repmat.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


extractFeatures.o : $(START_DIR)/extractFeatures.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


mod.o : $(START_DIR)/mod.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


eef.o : $(START_DIR)/eef.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


remapFun.o : $(START_DIR)/remapFun.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


prod.o : $(START_DIR)/prod.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


imfilter.o : $(START_DIR)/imfilter.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


padarray.o : $(START_DIR)/padarray.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


multiscaleBlendingColor.o : $(START_DIR)/multiscaleBlendingColor.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


gaussian_pyramid.o : $(START_DIR)/gaussian_pyramid.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


laplacian_pyramid.o : $(START_DIR)/laplacian_pyramid.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


upsample.o : $(START_DIR)/upsample.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


reconstruct_laplacian_pyramid.o : $(START_DIR)/reconstruct_laplacian_pyramid.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


robustnormalization.o : $(START_DIR)/robustnormalization.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


sort.o : $(START_DIR)/sort.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


sortIdx.o : $(START_DIR)/sortIdx.cpp
    $(CPP) $(CPPFLAGS) -o "$@" "$<"


###########################################################################
## DEPENDENCIES
###########################################################################

$(ALL_OBJS) : rtw_proj.tmw $(MAKEFILE)


clean : 
    $(ECHO) "### Deleting all derived files..."
    $(RM) $(PRODUCT)
    $(RM) $(ALL_OBJS)
    $(ECHO) "### Deleted all derived files."

以及make命令后的部分对应消息。

g++ -I/usr/local/include/opencv -I/usr/local/include -c -fwrapv -std=c++11 -pedantic -fPIC -O3 -fno-loop-optimize -fno-aggressive-loop-optimizations -Wno-variadic-macros -Wno-variadic-macros  -DMODEL=runeef -I/home/dell/Documents/purefusion/codegen/exe/runeef -I/home/dell/Documents/purefusion -I/usr/local/polyspace/R2020a/extern/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocv/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocvcg/opencv/include -I/home/dell/Documents/purefusion/codegen/exe  -o "reconstruct_laplacian_pyramid.o" "/home/dell/Documents/purefusion/codegen/exe/runeef/reconstruct_laplacian_pyramid.cpp"
g++ -I/usr/local/include/opencv -I/usr/local/include -c -fwrapv -std=c++11 -pedantic -fPIC -O3 -fno-loop-optimize -fno-aggressive-loop-optimizations -Wno-variadic-macros -Wno-variadic-macros  -DMODEL=runeef -I/home/dell/Documents/purefusion/codegen/exe/runeef -I/home/dell/Documents/purefusion -I/usr/local/polyspace/R2020a/extern/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocv/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocvcg/opencv/include -I/home/dell/Documents/purefusion/codegen/exe  -o "robustnormalization.o" "/home/dell/Documents/purefusion/codegen/exe/runeef/robustnormalization.cpp"
g++ -I/usr/local/include/opencv -I/usr/local/include -c -fwrapv -std=c++11 -pedantic -fPIC -O3 -fno-loop-optimize -fno-aggressive-loop-optimizations -Wno-variadic-macros -Wno-variadic-macros  -DMODEL=runeef -I/home/dell/Documents/purefusion/codegen/exe/runeef -I/home/dell/Documents/purefusion -I/usr/local/polyspace/R2020a/extern/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocv/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocvcg/opencv/include -I/home/dell/Documents/purefusion/codegen/exe  -o "sort.o" "/home/dell/Documents/purefusion/codegen/exe/runeef/sort.cpp"
g++ -I/usr/local/include/opencv -I/usr/local/include -c -fwrapv -std=c++11 -pedantic -fPIC -O3 -fno-loop-optimize -fno-aggressive-loop-optimizations -Wno-variadic-macros -Wno-variadic-macros  -DMODEL=runeef -I/home/dell/Documents/purefusion/codegen/exe/runeef -I/home/dell/Documents/purefusion -I/usr/local/polyspace/R2020a/extern/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocv/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocvcg/opencv/include -I/home/dell/Documents/purefusion/codegen/exe  -o "sortIdx.o" "/home/dell/Documents/purefusion/codegen/exe/runeef/sortIdx.cpp"
make: *** No rule to make target '-L/usr/local/lib',needed by '/home/dell/Documents/purefusion/runeef'.  Stop.

此外，当我从中删除 $LIBS 时的错误消息

$(PRODUCT) : $(OBJS) $(PREBUILT_OBJS) $(LIBS)
    @echo "### Creating standalone executable "$(PRODUCT)" ..."
    $(CPP_LD) $(CPP_LDFLAGS) -o $(PRODUCT) $(OBJS) -Wl,--end-group $(SYstem_LIBS) $(TOOLCHAIN_LIBS) 
    @echo "### Created: $(PRODUCT)"

最后几行消息

g++ -I/usr/local/include/opencv -I/usr/local/include -c -fwrapv -std=c++11 -pedantic -fPIC -O3 -fno-loop-optimize -fno-aggressive-loop-optimizations -Wno-variadic-macros -Wno-variadic-macros  -DMODEL=runeef -I/home/dell/Documents/purefusion/codegen/exe/runeef -I/home/dell/Documents/purefusion -I/usr/local/polyspace/R2020a/extern/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocv/include -I/usr/local/polyspace/R2020a/toolBox/vision/builtins/src/ocvcg/opencv/include -I/home/dell/Documents/purefusion/codegen/exe  -o "sortIdx.o" "/home/dell/Documents/purefusion/codegen/exe/runeef/sortIdx.cpp"
### Creating standalone executable /home/dell/Documents/purefusion/runeef ...
g++ -Wl,"/usr/local/polyspace/R2020a/bin/glnxa64",-L"/usr/local/polyspace/R2020a/bin/glnxa64" -o /home/dell/Documents/purefusion/runeef rt_nonfinite.o rtGetNaN.o rtGetInf.o detectFASTCore.o cgCommon.o extractFreakCore.o mwfreak.o main.o runeef_rtwutil.o runeef_data.o runeef_initialize.o runeef_terminate.o runeef.o colon.o string1.o rgb2gray.o abs.o histeq.o minorMax.o sum.o imhist.o bsxfun.o cornerPoints_cg.o FeaturePointsImpl.o repmat.o extractFeatures.o mod.o eef.o remapFun.o prod.o imfilter.o padarray.o multiscaleBlendingColor.o gaussian_pyramid.o laplacian_pyramid.o upsample.o reconstruct_laplacian_pyramid.o robustnormalization.o sort.o sortIdx.o -Wl,--start-group /usr/local/polyspace/R2020a/bin/glnxa64/libmwjpegreader.so /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_calib3d.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_core.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_features2d.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_flann.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_imgproc.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_ml.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_objdetect.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_video.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudaarithm.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudabgsegm.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudafeatures2d.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudafilters.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudaimgproc.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cuDalegacy.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudaobjdetect.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudaoptflow.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudastereo.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudawarping.so.3.4 /usr/local/polyspace/R2020a/bin/glnxa64/libopencv_cudev.so.3.4 -L/usr/local/lib -lopencv_stitching -lopencv_superres -lopencv_videostab -lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_ccalib -lopencv_dnn_objdetect -lopencv_dpm -lopencv_highgui -lopencv_videoio -lopencv_face -lopencv_freetype -lopencv_fuzzy -lopencv_hfs -lopencv_img_hash -lopencv_line_descriptor -lopencv_optflow -lopencv_reg -lopencv_rgbd -lopencv_saliency -lopencv_stereo -lopencv_structured_light -lopencv_phase_unwrapping -lopencv_surface_matching -lopencv_tracking -lopencv_datasets -lopencv_text -lopencv_dnn -lopencv_plot -lopencv_xfeatures2d -lopencv_shape -lopencv_video -lopencv_ml -lopencv_ximgproc -lopencv_xobjdetect -lopencv_objdetect -lopencv_calib3d -lopencv_imgcodecs -lopencv_features2d -lopencv_flann -lopencv_xphoto -lopencv_photo -lopencv_imgproc -lopencv_core -Wl,--end-group -L"/usr/local/polyspace/R2020a/bin/glnxa64" -lmwrgb2gray_tbb -lmwgetnumcores -lmwtbbhist -lmwgrayxform_tbb -lmwgrayto8 -lmwippfilter -lmwipp -lmwimfilter -lmwnhood -lm -lstdc++   
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::Mat::Mat()'
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::detail::check_Failed_auto(int,cv::detail::CheckContext const&)'
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::Mat::Mat(int,int,int)'
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::detail::check_Failed_MatType(int,cv::detail::CheckContext const&)'
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::detail::check_Failed_MatType(int,cv::detail::CheckContext const&)'
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::detail::check_Failed_MatDepth(int,cv::detail::CheckContext const&)'
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::detail::check_Failed_auto(int,cv::detail::CheckContext const&)'
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::Mat::total() const'
/usr/bin/ld: /usr/local/lib/libopencv_imgcodecs.so: undefined reference to `cv::detail::check_Failed_auto(unsigned long,unsigned long,cv::detail::CheckContext const&)'
collect2: error: ld returned 1 exit status
make: *** [runeef_rtw.mk:270: /home/dell/Documents/purefusion/runeef] Error 1

解决方法

您的 makefile 具有变量赋值（为简洁起见进行了编辑）...

LIBS = $(MATLAB_ROOT)/bin/glnxa64/libmwjpegreader.so ... $(shell pkg-config --libs opencv)

$(shell pkg-config --libs opencv) 组件将扩展到类似...

-L/usr/local/lib -lopencv

但是您随后使用 $(LIBS) 作为多个目标的依赖项，例如...

$(PRODUCT) : $(OBJS) $(PREBUILT_OBJS) $(LIBS)

扩展为（再次，为简洁起见编辑）...

$(PRODUCT) : $(OBJS) $(PREBUILT_OBJS) -L/usr/local/lib -lopencv

因此，当 make 尝试处理目标 $(PRODUCT) 时，它会看到目标似乎依赖于 -L/usr/local/lib 并相应地采取行动。

在没有更多上下文的情况下很难提供更完整的答案，但 $(LIBS) 可能不应被列为此目标或任何其他目标的依赖项。

makefilemakefilemakefile-errorsmatlab-coderopencvopencv