Simply put: It's not finding the include paths:
CC = g++
OBJS = *.o #*/*.o
DEBUG = -g
PNAME = game
INCLUDES = -Iheaders
CFLAGS = -Wall $(DEBUG)
LFLAGS = -Wall -lsfml-graphics -lsfml-window -lsfml-system $(DEBUG)
all: build
build: $(OBJS)
$(CC) $(LFLAGS) $(OBJS) -o $(PNAME)
clean:
\rm *.o *~ $(PNAME)
.cpp:
$(CC) $(CFLAGS) $(INCLUDES) -c $(.SOURCE)
Your makefile looks pretty broken to me. Firstly, you probably want:
OBJS = $(patsubst %.cpp,%.o,$(wildcard *.cpp))
Secondly, your final rule needs to be something more like:
%.o: %.cpp
$(CC) $(CFLAGS) $(INCLUDES) -c $^ -o $#
Related
I know this question has been asked a million times but I can't seem to figure this out.
I'm working with a Makefile written by someone else:
CC=g++
CFLAGS=-Wall -g -gdwarf-3 -std=c++0x -rdynamic #
JEMALLOC=deps/jemalloc-5.1.0
NNMSG=deps/nng-1.3.2
BOOST=deps/boost_1_67_0
CRYPTOPP=deps/crypto
SQLITE=deps/sqlite-autoconf-3290000/build
.SUFFIXES: .o .cpp .h
SRC_DIRS = ./ ./benchmarks/ ./client/ ./transport/ ./system/ ./statistics/ ./blockchain/ ./db/ ./smart_contracts/ ./data_structures
DEPS = -I. -I./benchmarks -I./client/ -I./transport -I./system -I./statistics -I./blockchain -I./smart_contracts -I./data_structures -I$(JEMALLOC)/include -I$(NNMSG)/include -I$(BOOST) -I$(CRYPTOPP) -I./db -I$(SQLITE)/include
CFLAGS += $(DEPS) -D NOGRAPHITE=1 -Werror -Wno-sizeof-pointer-memaccess
LDFLAGS = -Wall -L. -L$(NNMSG)/lib -L$(JEMALLOC)/lib -Wl,-rpath,$(JEMALLOC)/lib -pthread -gdwarf-3 -lrt -std=c++0x -L$(CRYPTOPP) -L$(SQLITE)/lib
LDFLAGS += $(CFLAGS)
LIBS = -lnng -lanl -ljemalloc -lcryptopp -lsqlite3 -ldl
DB_MAINS = ./client/client_main.cpp ./unit_tests/unit_main.cpp
CL_MAINS = ./system/main.cpp ./unit_tests/unit_main.cpp
UNIT_MAINS = ./system/main.cpp ./client/client_main.cpp
CPPS_DB = $(foreach dir,$(SRC_DIRS),$(filter-out $(DB_MAINS), $(wildcard $(dir)*.cpp)))
CPPS_CL = $(foreach dir,$(SRC_DIRS),$(filter-out $(CL_MAINS), $(wildcard $(dir)*.cpp)))
CPPS_UNIT = $(foreach dir,$(SRC_DIRS),$(filter-out $(UNIT_MAINS), $(wildcard $(dir)*.cpp)))
#CPPS = $(wildcard *.cpp)
OBJS_DB = $(addprefix obj/, $(notdir $(CPPS_DB:.cpp=.o)))
OBJS_CL = $(addprefix obj/, $(notdir $(CPPS_CL:.cpp=.o)))
OBJS_UNIT = $(addprefix obj/, $(notdir $(CPPS_UNIT:.cpp=.o)))
#NOGRAPHITE=1
all:rundb runcl
.PHONY: deps_db
deps:$(CPPS_DB)
$(CC) $(CFLAGS) -MM $^ > obj/deps
sed '/^[^ ]/s/^/obj\//g' obj/deps > obj/deps.tmp
mv obj/deps.tmp obj/deps
-include obj/deps
rundb : $(OBJS_DB)
$(CC) -static -o $# $^ $(LDFLAGS) $(LIBS)
./obj/%.o: transport/%.cpp
$(CC) -static -c $(CFLAGS) $(INCLUDE) $(LIBS) -o $# $<
./obj/%.o: benchmarks/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: blockchain/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: system/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: statistics/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: client/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: %.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: db/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: smart_contracts/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
runcl : $(OBJS_CL)
$(CC) -static -o $# $^ $(LDFLAGS) $(LIBS)
./obj/%.o: transport/%.cpp
$(CC) -static -c $(CFLAGS) $(INCLUDE) $(LIBS) -o $# $<
./obj/%.o: benchmarks/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: blockchain/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: system/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: statistics/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: client/%.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
./obj/%.o: %.cpp
$(CC) -c $(CFLAGS) $(INCLUDE) -o $# $<
.PHONY: clean
clean:
rm -f obj/*.o obj/.depend rundb runcl runsq unit_test
What I'm attempting to do is place a header only library crow_all.h into a my file system/client_thread.cpp. Its worth noting that the crow library has this path /deps/crow_all.h.
I've tried appending -lpthread -L$(BOOST)/libs -lboost_system the LDFLAGS flag but I still manage to get this error:
/mnt/d/programs/ExpoLab/ResilientDB/deps/boost_1_67_0/boost/asio/error.hpp:230: undefined reference to `boost::system::system_category()'
Furthermore, I think my compiler is picking up my system version of the boost library?? I only say that since when I use Make when inside a docker container, I get a different error:
/usr/bin/ld: cannot find -lboost_system
Any advice would be amazing.. this is pretty frustrating :(
I am trying to create Makefile for my C++ project.
My main.cpp contains this custom includes:
#include <mysql_connection.h>
#include <cppconn/driver.h>
#include <cppconn/exception.h>
#include <cppconn/resultset.h>
#include <cppconn/statement.h>
#include <cppconn/prepared_statement.h>
For compilation I use:
g++ -stdlib=libc++ -o app.cgi -I/usr/local/include -I/usr/local/mysql-connector-c++-8.0.21/include/jdbc -L/usr/local/mysql-connector-c++/lib64 main.cpp -lmysqlcppconn
Now I need to add
#include "tinyxml2/tinyxml2.hpp"
The most simple way is to create Makefile. I wrote:
CC = g++
CFLAGS = -Wall -g -std=c++11
INCLUDES = -I/usr/local/include -I/usr/local/mysql-connector-c++-8.0.21/include/jdbc
LDLIBS = -L/usr/local/mysql-connector-c++/lib64 -lmysqlcppconn
SRCS = main.cpp ./tinyxml2/tinyxml2.cpp
OBJS = $(SRCS:.cpp=.o)
MAIN = main.cgi
#
# The following part of the makefile is generic
#
.PHONY: depend clean
all: $(MAIN)
$(MAIN): $(OBJS)
$(CC) $(CFLAGS) $(INCLUDES) -o $(MAIN) $(OBJS)
.PRECIOUS: %.o
.c.o:
$(CC) $(CFLAGS) $(INCLUDES) -cpp $< -o $#
clean:
$(RM) *.o *~ $(MAIN)
depend: $(SRCS)
makedepend $(INCLUDES) $^
I got error:
main.cpp:21:10: fatal error: 'mysql_connection.h' file not found
#include <mysql_connection.h>
How to add includes to every .o? tinyxml2 doesn't use MySQL connector so I shouldn't add -lmysqlcppconn. How to do it?
You could build the makefile step by step. Start with the build command and make it a makefile target (I removed -stdlib=libc++):
app.cgi: main.cpp
g++ -o app.cgi -I/usr/local/include -I/usr/local/mysql-connector-c++-8.0.21/include/jdbc -L/usr/local/mysql-connector-c++/lib64 main.cpp -lmysqlcppconn
Next you can extract most elements into variables and add compiler flags:
CXX = g++
CXXFLAGS = -Wall -g -std=c++11
MAIN = app.cgi
CPPFLAGS = -I/usr/local/include -I/usr/local/mysql-connector-c++-8.0.21/include/jdbc
SRCS = main.cpp
LDFLAGS = -L/usr/local/mysql-connector-c++/lib64
LDLIBS = -lmysqlcppconn
$(MAIN): $(SRCS)
$(CXX) $(CXXFLAGS) $(CPPFLAGS) -o $(MAIN) $(SRCS) $(LDFLAGS) $(LDLIBS)
Add a clean and an all target:
CXX = g++
CXXFLAGS = -Wall -g -std=c++11
MAIN = app.cgi
CPPFLAGS = -I/usr/local/include -I/usr/local/mysql-connector-c++-8.0.21/include/jdbc
SRCS = main.cpp
LDFLAGS = -L/usr/local/mysql-connector-c++/lib64
LDLIBS = -lmysqlcppconn
.PHONY: all clean
all: $(MAIN)
$(MAIN): $(SRCS)
$(CXX) $(CXXFLAGS) $(CPPFLAGS) -o $(MAIN) $(SRCS) $(LDFLAGS) $(LDLIBS)
clean:
$(RM) *.o *~ $(MAIN)
Split into compiler step (implicit makefile rule) and linker step:
CXX = g++
CXXFLAGS = -Wall -g -std=c++11
MAIN = app.cgi
CPPFLAGS = -I/usr/local/include -I/usr/local/mysql-connector-c++-8.0.21/include/jdbc
SRCS = main.cpp
OBJS = $(SRCS:.cpp=.o)
LDFLAGS = -L/usr/local/mysql-connector-c++/lib64
LDLIBS = -lmysqlcppconn
.PHONY: all clean
all: $(MAIN)
$(MAIN): $(OBJS)
$(CXX) -o $(MAIN) $(OBJS) $(LDFLAGS) $(LDLIBS)
clean:
$(RM) *.o *~ $(MAIN)
Finally add ./tinyxml2/tinyxml2.cpp:
CXX = g++
CXXFLAGS = -Wall -g -std=c++11
MAIN = app.cgi
CPPFLAGS = -I/usr/local/include -I/usr/local/mysql-connector-c++-8.0.21/include/jdbc
SRCS = main.cpp ./tinyxml2/tinyxml2.cpp
OBJS = $(SRCS:.cpp=.o)
LDFLAGS = -L/usr/local/mysql-connector-c++/lib64
LDLIBS = -lmysqlcppconn
.PHONY: all clean
all: $(MAIN)
$(MAIN): $(OBJS)
$(CXX) -o $(MAIN) $(OBJS) $(LDFLAGS) $(LDLIBS)
clean:
$(RM) *.o *~ $(MAIN)
I'm trying to get dlib library working in my C++ project from last 2 weeks and found some solution but still i'm facing errors which i can not understand. As i am newbie to the makefile and dlib guide me what to do with makefile.
The folder structure is like this:
projectDir
|-makefile
|-src
|-CDetector.cpp
|-CDetectot.h
|-CStreamReader.cpp
|-CStreamReader.h
|-include
|-darknet
|-(files).h (other .h files needed by src files)
|-dlib-19.6
|-all
|-source.cpp
|-lots of header files
|-...
|-external_libs
|-libdarknet.a
|-libdarknet.so
The makefile looks like this:
EXE = darknet
OBJ_DIR = obj
CXXFILES = $(shell find src -type f -name '*.cpp')
CXXOBJ = $(patsubst src/%.cpp,obj/%.o,$(CXXFILES))
INCLUDE = -I/include -I/include/darknet
LIBS = external_libs/libdarknet.a
CXXFLAGS = `pkg-config --cflags-only-I opencv` -Wall -Wno-unknown-pragmas -Wfatal-errors -Wwrite-strings -fPIC
LDFLAGS = -lm -pthread -lX11 -DDLIB_JPEG_SUPPORT -ljpeg
all: $(EXE)
$(EXE): $(CXXOBJ)
$(CXX) $(CXXOBJ) -o $(EXE) $(LIBS) $(LDFLAGS)
$(OBJ_DIR)/%.o: src/%.cpp
$(CXX) $(CXXFLAGS) $(INCLUDE) $< -c -o $#
$(BUILD)
run: all
./$(EXE)
clean:
-rm -f $(EXE) $(CXXOBJ)
rmdir obj/
It needs some modification as INCLUDE, CXXFLAGS AND LDFLAGS will be
INCLUDE = -Iinclude -Iinclude/darknet `pkg-config --cflags-only-I opencv`
CXXFLAGS = -Wall -Wno-unknown-pragmas -Wfatal-errors -Wwrite-strings -fPIC
LDFLAGS = -lm -pthread -lX11 -DDLIB_JPEG_SUPPORT -ljpeg -lopencv_videoio `pkg-config --libs opencv`
and i'm now using darknet makefile to do it so my makefile looks like
VPATH = ./src/
ALIB = external_libs/libdarknet.a
EXEC = darknet
OBJDIR = ./obj/
CC = g++ -std=c++11
NVCC = nvcc
AR = ar
ARFLAGS = rcs
OPTS = -Ofast
LDFLAGS = -lm -pthread -lX11 -DDLIB_JPEG_SUPPORT -ljpeg -lopencv_videoio `pkg-config --libs opencv`
INCLUDE = -Iinclude -Iinclude/darknet `pkg-config --cflags-only-I opencv`
CFLAGS = -Wall -Wno-unknown-pragmas -Wfatal-errors -Wwrite-strings -fPIC
OBJ = CDetector.o CStreamReader.o
EXECOBJA = CDetector.o CStreamReader.o
EXECOBJ = $(addprefix $(OBJDIR), $(EXECOBJA))
OBJS = $(addprefix $(OBJDIR), $(OBJ))
DEPS = $(wildcard src/*.h) Makefile include/darknet/darknet.h
all: obj results $(ALIB) $(EXEC)
$(EXEC): $(EXECOBJ) $(ALIB)
$(CC) $(INCLUDE) $(CFLAGS) $^ -o $# $(LDFLAGS) $(ALIB)
$(ALIB): $(OBJS)
$(AR) $(ARFLAGS) $# $^
$(OBJDIR)%.o: %.cpp $(DEPS)
$(CC) $(INCLUDE) $(CFLAGS) -c $< -o $#
obj:
mkdir -p obj
backup:
mkdir -p backup
results:
mkdir -p results
.PHONY: clean
clean:
rm -rf $(OBJS) $(ALIB) $(EXEC) $(EXECOBJ)
1. My file structure is:
build/
include/
-Sort.h
src/
-Sort.cpp
-main.cpp
2. My Makefile:
C++ = g++
SRCPATH := ./src
BUILDPATH := ./build
SORTINCPATH := ./include
TARGET := $(BUILDPATH)/sort
CPPFLAGS := -c -g -Wall -O0
INCPATH := -I./ -I$(SORTINCPATH)
CPPFILES += $(wildcard $(SRCPATH)/*.cpp)
CFILES += $(wildcard $(SRCPATH)/*.c)
HEADFILES += $(wildcard $(SORTINCPATH)/*.h)
CPPOBJS += $(CPPFILES:.cpp=.o)
COBJS += $(CFILES:.c=.o)
.PHONY : all
all: $(TARGET)
$(TARGET): $(CPPOBJS) $(COBJS)
$(C++) $(CPPFLAGS) -o $# $(CPPOBJS) $(COBJS)
%.o : %.c $(HEADFILES)
$(C++) $(CPPFLAGS) $(INCPATH) $< -o $#
%.O : %.cpp $(HEADFILES)
$(C++) $(CPPFLAGS) $(INCPATH) $< -o $#
.PHONY : clean
clean:
-rm $(TARGET) $(COBJS) $(CPPOBJS)
3. Sort.h
sort.h
4. Sort.cpp
sort-1.cpp
sort-2.cpp
5. When I run make, it shows the following:
g++ -c -g -Wall -O0 -c -o src/Sort.o src/Sort.cpp
and says "src/Sort.cpp:3:18: fatal error: Sort.h: no such file or directory".
I hope you can help me find out where the problem is.
Thank you so much!
I'm trying to move the *.o-files into a separate folder (/objs). But I'm getting the following error:
"No rule to make target '../objs/main.o', needed by 'all'. Stop."
How do I have to define these rules?
My folder structure looks as follows:
model_1/
main.cpp
Model1.cpp
Model1.h
model_1.mk # Makefile
pub_sub/
...
objs/
My Makefile:
CC=gcc
CXX=g++
RM=rm -f
PROG = myProgram
INCLUDES = -I../pub_sub
CXXFLAGS := -std=c++1y -g -Wall ${INCLUDES}
LDFLAGS = -L/usr/local/lib
SRCS= main.cpp Model1.cpp ../pub_sub/Subscriber.cpp ../pub_sub/Publisher.cpp
OBJS= $(addprefix ../objs/, $(notdir $(subst .cpp,.o,$(SRCS))))
all: $(OBJS)
$(CXX) $(CXXFLAGS) -o $(PROG) $(OBJS) $(LDFLAGS)
.PHONY:
clean:
$(RM) $(OBJS)
distclean: clean
$(RM) $(PROG)