Makefileのエラーは、シンボルに 'GOMP_parallel @@ GOMP_4.0'

Question

警告を未定義の参照を引き起こし私が直接ビルドした場合に動作する実験的ファイルシステムですが、makefileをリンカエラーで使用すると失敗します。

g++ \ 
-std=c++11 -std=c++1y -fopenmp -DNDEBUG \ 
-O3 -fprofile-generate -march=native -fomit-frame-pointer \ 
docproc.cpp \ 
-flto -L/usr/local/lib -lstdc++fs \ 
-lpthread -lboost_thread -lboost_system \ 
-lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_calib3d -lopencv_ccalib -lopencv_core -lopencv_datasets -lopencv_dnn -lopencv_dpm -lopencv_face -lopencv_features2d -lopencv_flann -lopencv_fuzzy -lopencv_highgui -lopencv_imgcodecs -lopencv_imgproc -lopencv_line_descriptor -lopencv_ml -lopencv_objdetect -lopencv_optflow -lopencv_photo -lopencv_plot -lopencv_reg -lopencv_rgbd -lopencv_saliency -lopencv_shape -lopencv_stereo -lopencv_stitching -lopencv_structured_light -lopencv_superres -lopencv_surface_matching -lopencv_text -lopencv_tracking -lopencv_xfeatures2d -lopencv_ximgproc -lopencv_xobjdetect -lopencv_xphoto 

しかし、私のmakefileはこれを生成し、失敗します：

これは動作します

g++ -g -L/usr/local/lib -o docproc docproc.o taina.o logging.o \ 
-lpthread -lboost_thread -lboost_system \ 
-lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_calib3d -lopencv_ccalib -lopencv_core -lopencv_datasets -lopencv_dnn -lopencv_dpm -lopencv_face -lopencv_features2d -lopencv_flann -lopencv_fuzzy -lopencv_highgui -lopencv_imgcodecs -lopencv_imgproc -lopencv_line_descriptor -lopencv_ml -lopencv_objdetect -lopencv_optflow -lopencv_photo -lopencv_plot -lopencv_reg -lopencv_rgbd -lopencv_saliency -lopencv_shape -lopencv_stereo -lopencv_stitching -lopencv_structured_light -lopencv_superres -lopencv_surface_matching -lopencv_text -lopencv_tracking -lopencv_xfeatures2d -lopencv_ximgproc -lopencv_xobjdetect -lopencv_xphoto 

/usr/bin/ld: /tmp/ccNDMpfK.ltrans2.ltrans.o: undefined reference to symbol 'GOMP_parallel@@GOMP_4.0' 
//usr/lib/x86_64-linux-gnu/libgomp.so.1: error adding symbols: DSO missing from command line 
collect2: error: ld returned 1 exit status 

は、ここに私がmakefile

CC=gcc 
CXX=g++ 
RM=rm -f 

CPPCONFIG=-std=c++11 -std=c++1y -fopenmp -flto -lstdc++fs -DNDEBUG 
CPP_OPT=-O3 -fprofile-generate -march=native -fomit-frame-pointer 
CPPFLAGS=-g $(CPPCONFIG) $(CPP_OPT) 

THREAD_LIBS=-lpthread -lboost_thread -lboost_system 
OPENCV_LIBS=-lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_calib3d -lopencv_ccalib -lopencv_core -lopencv_datasets -lopencv_dnn -lopencv_dpm -lopencv_face -lopencv_features2d -lopencv_flann -lopencv_fuzzy -lopencv_highgui -lopencv_imgcodecs -lopencv_imgproc -lopencv_line_descriptor -lopencv_ml -lopencv_objdetect -lopencv_optflow -lopencv_photo -lopencv_plot -lopencv_reg -lopencv_rgbd -lopencv_saliency -lopencv_shape -lopencv_stereo -lopencv_stitching -lopencv_structured_light -lopencv_superres -lopencv_surface_matching -lopencv_text -lopencv_tracking -lopencv_xfeatures2d -lopencv_ximgproc -lopencv_xobjdetect -lopencv_xphoto 
LDFLAGS=-g -L/usr/local/lib 
LDLIBS=$(THREAD_LIBS) $(OPENCV_LIBS) 

SRCS=docproc.cpp taina.cpp logging.cpp 
OBJS=$(subst .cpp,.o,$(SRCS)) 

all: docproc 

docproc: $(OBJS) 
    $(CXX) $(LDFLAGS) -o docproc $(OBJS) $(LDLIBS) 

depend: .depend 

.depend: $(SRCS) 
    rm -f ./.depend 
    $(CXX) $(CPPFLAGS) -MM $^>>./.depend; 

clean: 
    $(RM) $(OBJS) 

dist-clean: clean 
    $(RM) *~ .depend 

include .depend 

Answer 1

あなたは-fopenmpとリンクする必要があります。あなたのmakefileはリンカのステップでそのフラグを提供しません。 LDFLAGSに-fopenmpを追加してください。

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