"no rule to make target" for target created by another makefile - c++

The main makefile is this, as you can see it calls to two other makefiles in the subdirs: comm and bc.
I know that I don't use makefile shortcuts like treating all cpp files at once but please don't pay attention to that right now.
In comm/makefile there is a rule to make comm/build/Communication.o but somehow I don't know how to tell that fact to the main makefile.
CPPFLAGS=-g -c --std=c++11 -Iinc -I/usr/include -I/usr/include/qt5 -I/usr/include/qt5/QtCore -I/usr/include/boost -Ibc/inc -Icomm/inc
LDFLAGS=-g -L/usr/lib/x86_64-linux-gnu/ -lQt5Core -lboost_system -lpthread -lboost_thread
all: comm/bin/party bc/bin/bctest bin/protocol
comm/bin/party:
cd comm && $(MAKE)
bc/bin/bctest:
cd bc && $(MAKE)
bin/protocol:build/main.o \
build/TrustedParty.o \
build/Player.o \
build/utils.o \
comm/build/Communication.o \
comm/build/FileParser.o \
comm/build/Party.o \
comm/build/PeerConnection.o \
comm/build/ServerModule.o \
comm/build/Utilities.o \
bc/build/BooleanCircuit.o \
bc/build/Gate.o \
bc/build/Wire.o
g++ -Wall $^ -o bin/protocol $(LDFLAGS)
build/main.o:src/main.cpp
g++ $(CPPFLAGS) -fPIC src/main.cpp -o build/main.o
build/TrustedParty.o:src/TrustedParty.cpp
g++ $(CPPFLAGS) src/TrustedParty.cpp -o build/TrustedParty.o
build/Player.o:src/Player.cpp
g++ $(CPPFLAGS) src/Player.cpp -o build/Player.o
build/utils.o:src/utils.cpp
g++ $(CPPFLAGS) src/utils.cpp -o build/utils.o
clean:
rm -fr build/* bin/*
rm -fr comm/build/* bin/*
rm -fr bc/build/* bin/*
When I run make it returns
16:15:03 **** Build of configuration Default for project bmr ****
make all
g++ -g -c --std=c++11 -Iinc -I/usr/include -I/usr/include/qt5 -I/usr/include/qt5/QtCore -I/usr/include/boost -Ibc/inc -Icomm/inc -fPIC src/main.cpp -o build/main.o
g++ -g -c --std=c++11 -Iinc -I/usr/include -I/usr/include/qt5 -I/usr/include/qt5/QtCore -I/usr/include/boost -Ibc/inc -Icomm/inc src/TrustedParty.cpp -o build/TrustedParty.o
g++ -g -c --std=c++11 -Iinc -I/usr/include -I/usr/include/qt5 -I/usr/include/qt5/QtCore -I/usr/include/boost -Ibc/inc -Icomm/inc src/Player.cpp -o build/Player.o
g++ -g -c --std=c++11 -Iinc -I/usr/include -I/usr/include/qt5 -I/usr/include/qt5/QtCore -I/usr/include/boost -Ibc/inc -Icomm/inc src/utils.cpp -o build/utils.o
make: *** No rule to make target `comm/build/Communication.o', needed by `bin/protocol'. Stop.
16:15:11 Build Finished (took 7s.821ms)

Assuming the comm/Makefile knows how to build that target correctly (make build/Communication.o in the comm directory works); then if you really want to get this to work correctly (and you might not want to, see Recursive Make Considered Harmful for why) you need to tell the toplevel make what to do in this situation.
Something like this:
comm/build/%.o:
#$(MAKE) -C comm $(patsubst comm/%,%,$#)

Related

MakeFile add library

I've installed the library via vcpkg and it gave me the next rows to add to cmake:
find_package(Libevent CONFIG REQUIRED)
target_link_libraries(main PRIVATE libevent::core libevent::extra)
But my project uses Makefile instead of cmake. How can I add the library to project?
Makefile:
# Remove NDEBUG define to trigger asserts
CPPFLAGS+=-O2 -std=gnu++11 -I. -DNDEBUG -Wall -Wno-sign-compare -Wno-unused -g -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -DOPENSSL
LDFLAGS+=-levent -lstdc++ -lssl -lcrypto
uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
ifeq ($(uname_S),FreeBSD)
CXX=clang++
LIBEVENT_HOME=/usr/local
CPPFLAGS+=-I${LIBEVENT_HOME}/include
LDFLAGS+=-L${LIBEVENT_HOME}/lib
else
CXX?=g++
endif
all: swift-dynamic
swift: swift.o sha1.o compat.o sendrecv.o send_control.o hashtree.o bin.o binmap.o channel.o transfer.o httpgw.o statsgw.o cmdgw.o avgspeed.o avail.o storage.o zerostate.o zerohashtree.o livehashtree.o live.o api.o content.o swarmmanager.o address.o livesig.o exttrack.o
swift-static: swift
${CXX} ${CPPFLAGS} -o swift *.o ${LDFLAGS} -static -lrt
strip swift
touch swift-static
swift-dynamic: swift
${CXX} ${CPPFLAGS} -o swift *.o ${LDFLAGS}
touch swift-dynamic
clean:
rm -f *.o swift swift-static swift-dynamic 2>/dev/null
.PHONY: all clean swift swift-static swift-dynamic

Make file building all objects files from same source file

I have a project that contains a obj and a src subfolder.
When I run make with the following Makefile, it builds each .o with the same src.
CXX = g++
CXXINCDIRS = -I./ext/glui/include -I.
CXXLIBDIR = /usr/lib/
SRCDIR = ./src
OBJDIR = ./obj
INCDIR = ./include
BINDIR = ./bin
EXE = $(BINDIR)/brushwork
CXXFLAGS += -W -Wall -Wextra -Weffc++ -std=c++11 $(CXXINCDIRS)
SRC_CXX = $(wildcard $(SRCDIR)/*.cc)
OBJECTS_CXX = $(patsubst $(SRCDIR)/%.cc, $(OBJDIR)/%.o, $(SRC_CXX))
LIBRARY_CXX = -lglut -lGL -lGLU -L/usr/lib -lglui
$(OBJDIR)/%.o: $(SRCDIR)/%.cc
g++ -o $# -c $<
$(EXE): $(OBJECTS_CXX) | $(BINDIR)
$(CXX) $(CXXFLAGS) $(CXXINCDIRS) -o $# $^ $(CXXLIBDIR) $(LIBRARY_CXX)
$(OBJECTS_CXX): $(SRC_CXX) | $(OBJDIR)
$(CXX) $(CXXFLAGS) -c -o $# $<
$(OBJDIR)/%.o: $(SRC_CXX) $(INCDIR)/%.h | $(OBJDIR)
$(CXX) $(CXXFLAGS) -c -o $# $<
$(BINDIR) $(OBJDIR):
mkdir -p $#
When I run the command
make -B -n
I get
mkdir -p obj
g++ -W -Wall -Wextra -Weffc++ -std=c++11 -I./ext/glui/include -I. -c -o obj/tool.o src/tool.cc
g++ -W -Wall -Wextra -Weffc++ -std=c++11 -I./ext/glui/include -I. -c -o obj/base_gfx_app.o src/tool.cc
g++ -W -Wall -Wextra -Weffc++ -std=c++11 -I./ext/glui/include -I. -c -o obj/color_data.o src/tool.cc
g++ -W -Wall -Wextra -Weffc++ -std=c++11 -I./ext/glui/include -I. -c -o obj/main.o src/tool.cc
g++ -W -Wall -Wextra -Weffc++ -std=c++11 -I./ext/glui/include -I. -c -o obj/pixel_buffer.o src/tool.cc
g++ -W -Wall -Wextra -Weffc++ -std=c++11 -I./ext/glui/include -I. -c -o obj/brushwork_app.o src/tool.cc
mkdir -p bin
g++ -W -Wall -Wextra -Weffc++ -std=c++11 -I./ext/glui/include -I. -I./ext/glui/include -I. -o bin/brushwork obj/tool.o obj/base_gfx_app.o obj/color_data.o obj/main.o obj/pixel_buffer.o obj/brushwork_app.o /usr/lib/ -lglut -lGL -lGLU -L/usr/lib -lglui
I am not sure why each obj file is being built with the same src file.
I have tried $(SRCDIR)/%.cc but make complains that there is no recipe for $(SRCDIR)/%.cc
How can I have make build each src file it's respective src file?
For this:
$(OBJDIR)/%.o: $(SRC_CXX) $(INCDIR)/%.h | $(OBJDIR)
$(CXX) $(CXXFLAGS) -c -o $# $<
I think you need this:
$(OBJDIR)/%.o: $(SRCDIR)/%.cc $(INCDIR)/%.h
$(CXX) $(CXXFLAGS) $(CPPFLAGS) -c -o $# $<
I'm not sure what this does:
$(OBJECTS_CXX): $(SRC_CXX) | $(OBJDIR)
$(CXX) $(CXXFLAGS) -c -o $# $<
I suspect you should remove it.
And I think you should also remove this:
$(OBJDIR)/%.o: $(SRCDIR)/%.cc
g++ -o $# -c $<
It looks like you had 3 different rules to build your objects (unless I read it wrong).

How to merge two different Makefiles?

I have did some reading on "Merging Makefiles", one suggest I should leave the two Makefiles separate in different folders [1]. For me this look counter intuitive, because I have the following situation:
I have 3 source files (main.cpp flexibility.cpp constraints.cpp) one of them (flexibility.cpp) is making use of the COIN-OR Linear Programming library (Clp) When installing this library on my computer it makes sample Makefiles, which I have adjust the Makefile and it currently makes a good working binary.
# Copyright (C) 2006 International Business Machines and others.
# All Rights Reserved.
# This file is distributed under the Eclipse Public License.
# $Id: Makefile.in 726 2006-04-17 04:16:00Z andreasw $
##########################################################################
# You can modify this example makefile to fit for your own program. #
# Usually, you only need to change the five CHANGEME entries below. #
##########################################################################
# To compile other examples, either changed the following line, or
# add the argument DRIVER=problem_name to make
DRIVER = main
# CHANGEME: This should be the name of your executable
EXE = clp
# CHANGEME: Here is the name of all object files corresponding to the source
# code that you wrote in order to define the problem statement
OBJS = $(DRIVER).o constraints.o flexibility.o
# CHANGEME: Additional libraries
ADDLIBS =
# CHANGEME: Additional flags for compilation (e.g., include flags)
ADDINCFLAGS =
# CHANGEME: Directory to the sources for the (example) problem definition
# files
SRCDIR = .
##########################################################################
# Usually, you don't have to change anything below. Note that if you #
# change certain compiler options, you might have to recompile the #
# COIN package. #
##########################################################################
COIN_HAS_PKGCONFIG = TRUE
COIN_CXX_IS_CL = #TRUE
COIN_HAS_SAMPLE = TRUE
COIN_HAS_NETLIB = #TRUE
# C++ Compiler command
CXX = g++
# C++ Compiler options
CXXFLAGS = -O3 -pipe -DNDEBUG -pedantic-errors -Wparentheses -Wreturn-type -Wcast-qual -Wall -Wpointer-arith -Wwrite-strings -Wconversion -Wno-unknown-pragmas -Wno-long-long -DCLP_BUILD
# additional C++ Compiler options for linking
CXXLINKFLAGS = -Wl,--rpath -Wl,/home/martijn/Downloads/COIN/coin-Clp/lib
# C Compiler command
CC = gcc
# C Compiler options
CFLAGS = -O3 -pipe -DNDEBUG -pedantic-errors -Wimplicit -Wparentheses -Wsequence-point -Wreturn-type -Wcast-qual -Wall -Wno-unknown-pragmas -Wno-long-long -DCLP_BUILD
# Sample data directory
ifeq ($(COIN_HAS_SAMPLE), TRUE)
ifeq ($(COIN_HAS_PKGCONFIG), TRUE)
CXXFLAGS += -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\"
CFLAGS += -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\"
else
CXXFLAGS += -DSAMPLEDIR=\"\"
CFLAGS += -DSAMPLEDIR=\"\"
endif
endif
# Netlib data directory
ifeq ($(COIN_HAS_NETLIB), TRUE)
ifeq ($(COIN_HAS_PKGCONFIG), TRUE)
CXXFLAGS += -DNETLIBDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatanetlib`\"
CFLAGS += -DNETLIBDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatanetlib`\"
else
CXXFLAGS += -DNETLIBDIR=\"\"
CFLAGS += -DNETLIBDIR=\"\"
endif
endif
# Include directories (we use the CYGPATH_W variables to allow compilation with Windows compilers)
ifeq ($(COIN_HAS_PKGCONFIG), TRUE)
INCL = `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --cflags clp`
else
INCL =
endif
INCL += $(ADDINCFLAGS)
# Linker flags
ifeq ($(COIN_HAS_PKGCONFIG), TRUE)
LIBS = `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --libs clp`
else
ifeq ($(COIN_CXX_IS_CL), TRUE)
LIBS = -link -libpath:`$(CYGPATH_W) /home/martijn/Downloads/COIN/coin-Clp/lib` libClp.lib
else
LIBS = -L/home/martijn/Downloads/COIN/coin-Clp/lib -lClp
endif
endif
# The following is necessary under cygwin, if native compilers are used
CYGPATH_W = echo
# Here we list all possible generated objects or executables to delete them
CLEANFILES = clp \
main.o \
flexibility.o \
constraints.o \
all: $(EXE)
.SUFFIXES: .cpp .c .o .obj
$(EXE): $(OBJS)
bla=;\
for file in $(OBJS); do bla="$$bla `$(CYGPATH_W) $$file`"; done; \
$(CXX) $(CXXLINKFLAGS) $(CXXFLAGS) -o $# $$bla $(LIBS) $(ADDLIBS)
clean:
rm -rf $(CLEANFILES)
.cpp.o:
$(CXX) $(CXXFLAGS) $(INCL) -c -o $# `test -f '$<' || echo '$(SRCDIR)/'`$<
.cpp.obj:
$(CXX) $(CXXFLAGS) $(INCL) -c -o $# `if test -f '$<'; then $(CYGPATH_W) '$<'; else $(CYGPATH_W) '$(SRCDIR)/$<'; fi`
.c.o:
$(CC) $(CFLAGS) $(INCL) -c -o $# `test -f '$<' || echo '$(SRCDIR)/'`$<
.c.obj:
$(CC) $(CFLAGS) $(INCL) -c -o $# `if test -f '$<'; then $(CYGPATH_W) '$<'; else $(CYGPATH_W) '$(SRCDIR)/$<'; fi`
The other Makefile compiles a lot of code and makes use of bison and flex. This one is also made by someone else. I am able to alter this Makefile when I want to add some code. This Makefile also makes a binary.
CFLAGS=-Wall
LDLIBS=-LC:/GnuWin32/lib -lfl -lm
LSOURCES=lex.l
YSOURCES=grammar.ypp
CSOURCES=debug.cpp esta_plus.cpp heap.cpp main.cpp stjn.cpp timing.cpp tmsp.cpp token.cpp chaining.cpp flexibility.cpp exceptions.cpp
HSOURCES=$(CSOURCES:.cpp=.h) includes.h
OBJECTS=$(LSOURCES:.l=.o) $(YSOURCES:.ypp=.tab.o) $(CSOURCES:.cpp=.o)
all: solver
solver: CFLAGS+=-g -O0 -DDEBUG
solver: $(OBJECTS) main.o debug.o
g++ $(CFLAGS) -o $# $^ $(LDLIBS)
solver.release: CFLAGS+=-O5
solver.release: $(OBJECTS) main.o
g++ $(CFLAGS) -o $# $^ $(LDLIBS)
%.o: %.cpp
g++ -c $(CFLAGS) -o $# $<
lex.cpp: lex.l grammar.tab.cpp grammar.tab.hpp
flex -o$# $<
%.tab.cpp %.tab.hpp: %.ypp
bison --verbose -d $<
ifneq ($(LSOURCES),)
$(LSOURCES:.l=.cpp): $(YSOURCES:.y=.tab.h)
endif
-include $(OBJECTS:.o=.d)
clean:
rm -f $(OBJECTS) $(OBJECTS:.o=.d) $(YSOURCES:.ypp=.tab.cpp) $(YSOURCES:.ypp=.tab.hpp) $(YSOURCES:.ypp=.output) $(LSOURCES:.l=.cpp) solver solver.release 2>/dev/null
.PHONY: all clean debug release
Both of these Makefiles are, for me, hard to understand. I don't know what they exactly do. What I want is to merge the two of them so I get only one binary. The code compiled in the second Makefile should be the result. I want to add flexibility.cpp and constraints.cpp to the second Makefile, but when I do. I get the problem following problem:
flexibility.h:4:26: fatal error: ClpSimplex.hpp: No such file or directory
#include "ClpSimplex.hpp"
So the compiler can't find the Clp library. I also tried to copy-paste more code from the first Makefile into the second, but it still gives me that same error.
Q: Can you please help me with merging the two makefiles or pointing out a more elegant way?
Q: In this case is it indeed better to merge the two Makefiles?
I also tried to use cmake, but I gave upon that one quickly, because I don't know much about flex and bison.
g++ -O3 -pipe -DNDEBUG -pedantic-errors -Wparentheses -Wreturn-type -Wcast-qual -Wall -Wpointer-arith -Wwrite-strings -Wconversion -Wno-unknown-pragmas -Wno-long-long -DCLP_BUILD -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\" `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --cflags clp` -c -o main.o `test -f 'main.cpp' || echo './'`main.cpp
g++ -O3 -pipe -DNDEBUG -pedantic-errors -Wparentheses -Wreturn-type -Wcast-qual -Wall -Wpointer-arith -Wwrite-strings -Wconversion -Wno-unknown-pragmas -Wno-long-long -DCLP_BUILD -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\" `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --cflags clp` -c -o constraints.o `test -f 'constraints.cpp' || echo './'`constraints.cpp
g++ -O3 -pipe -DNDEBUG -pedantic-errors -Wparentheses -Wreturn-type -Wcast-qual -Wall -Wpointer-arith -Wwrite-strings -Wconversion -Wno-unknown-pragmas -Wno-long-long -DCLP_BUILD -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\" `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --cflags clp` -c -o flexibility.o `test -f 'flexibility.cpp' || echo './'`flexibility.cpp
bla=;\
for file in main.o constraints.o flexibility.o; do bla="$bla `echo $file`"; done; \
g++ -Wl,--rpath -Wl,/home/martijn/Downloads/COIN/coin-Clp/lib -O3 -pipe -DNDEBUG -pedantic-errors -Wparentheses -Wreturn-type -Wcast-qual -Wall -Wpointer-arith -Wwrite-strings -Wconversion -Wno-unknown-pragmas -Wno-long-long -DCLP_BUILD -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\" -o clp $bla `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --libs clp`
This is coming out of the first Makefile, looks like there are some errors in it? Printing things like echo looks really stupid.
What I want is to merge the two of them so I get only one binary.
I believe you have a complete wrong understanding what make does and what a Makefile is good for and there is a big misunderstanding what the concept of libraries, modules and programs ( binaries ) is.
As a first hint:
You can have multiple Makefiles in one directory. They can have every name you want to give them! "Makefile" is only the standard name which is searched first from the make command. Typical names are *.mk for modules of makefiles.
The next thing is, that there is no problem to call a makefile directly from make with another name. Simply use make -f xyz.mk to get this makefile in action.
The next thing is, that you can also include one makefile from another with "include".
I have not enough time to create your makefiles at all. But you should start with a little analyses:
What are your sources
What are your intermediate products / libraries / object - files
which objects will be linked to final product or libraries
which are the final products build up.
After that you can simply build your makefile toolchain. But you have start with some basic reading and some experiments with make.
I have run the first Makefile and used the output on the terminal to edit the second Makefile. I also have added the -std=c++11 flag which solved a few errors. The thing is compiling with the included libraries. I should be able to move on without any problems.
The working result with a few warnings:
CFLAGS=-Wall
LDLIBS=-LC:/GnuWin32/lib -lfl -lm
LSOURCES=lex.l
YSOURCES=grammar.ypp
CSOURCES=debug.cpp esta_plus.cpp heap.cpp main.cpp stjn.cpp timing.cpp tmsp.cpp token.cpp chaining.cpp exceptions.cpp constraints.cpp flexibility.cpp
HSOURCES=$(CSOURCES:.cpp=.h) includes.h
OBJECTS=$(LSOURCES:.l=.o) $(YSOURCES:.ypp=.tab.o) $(CSOURCES:.cpp=.o)
# C++ Compiler options
CXXFLAGS = -std=c++11 -O3 -pipe -DNDEBUG -pedantic-errors -Wparentheses -Wreturn-type -Wcast-qual -Wall -Wpointer-arith -Wwrite-strings -Wconversion -Wno-unknown-pragmas -Wno-long-long -DCLP_BUILD
EXTRAFLAG = -std=c++11 -Wl,--rpath -Wl,/home/martijn/Downloads/COIN/coin-Clp/lib -O3 -pipe -DNDEBUG -pedantic-errors -Wparentheses -Wreturn-type -Wcast-qual -Wall -Wpointer-arith -Wwrite-strings -Wconversion -Wno-unknown-pragmas -Wno-long-long -DCLP_BUILD -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\"
EXTRALIB = `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --libs clp`
all: solver
solver: CFLAGS+=-g -O0 -DDEBUG
solver: $(OBJECTS) main.o debug.o
g++ $(CFLAGS) $(EXTRAFLAG) -o $# $^ $(LDLIBS) $(EXTRALIB)
solver.release: CFLAGS+=-O5
solver.release: $(OBJECTS) main.o
g++ $(CFLAGS) -o $# $^ $(LDLIBS)
main.o: main.cpp
g++ $(CXXFLAGS) -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\" `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --cflags clp` -c -o main.o `test -f 'main.cpp' || echo './'`main.cpp
flexibility.o: flexibility.cpp
g++ $(CXXFLAGS) -DSAMPLEDIR=\"`PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --variable=datadir coindatasample`\" `PKG_CONFIG_PATH=/home/martijn/Downloads/COIN/coin-Clp/lib64/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/lib/pkgconfig:/home/martijn/Downloads/COIN/coin-Clp/share/pkgconfig: pkg-config --cflags clp` -c -o flexibility.o `test -f 'flexibility.cpp' || echo './'`flexibility.cpp
%.o: %.cpp
g++ -c $(CFLAGS) -o $# $<
lex.cpp: lex.l grammar.tab.cpp grammar.tab.hpp
flex -o$# $<
%.tab.cpp %.tab.hpp: %.ypp
bison --verbose -d $<
ifneq ($(LSOURCES),)
$(LSOURCES:.l=.cpp): $(YSOURCES:.y=.tab.h)
endif
-include $(OBJECTS:.o=.d)
clean:
rm -f $(OBJECTS) $(OBJECTS:.o=.d) $(YSOURCES:.ypp=.tab.cpp) $(YSOURCES:.ypp=.tab.hpp) $(YSOURCES:.ypp=.output) $(LSOURCES:.l=.cpp) solver solver.release 2>/dev/null
.PHONY: all clean debug release

Makefile for shared library that only compiles changed files?

I am working on a project where I am creating a .so object as my output that contains several operators for use in another program. I was given a Makefile that works just fine, except it always recompiles every file whenever I run make. Originally this was not an issue, but now that there are upwards of five or more operators in the library, running make is prohibitively slow. The trouble is that for the life of me, I can't figure out how to change this Makefile into one that behaves the way I want since I've never dealt with Makefiles in this format before:
BOOST_LOCATION=/usr/local/boost_1_54_0
CFLAGS=-pedantic -W -Wextra -Wall -Wno-strict-aliasing -Wno-long-long -Wno-unused-parameter -fPIC -D__STDC_FORMAT_MACROS -Wno-system-headers -isystem -O2 -g -DNDEBUG -ggdb3 -D__STDC_LIMIT_MACROS
INC=-I. -DPROJECT_ROOT="\"$(IN_SOURCE_DIR)\"" -I"$(IN_SOURCE_DIR)/include" -I"$(BOOST_LOCATION)"
LIBS=-L"$(IN_SOURCE_DIR)/lib" -shared -Wl,-soname,libname.so -L. -lm
all:
#if test ! -d "$(IN_SOURCE_DIR)"; then echo "Error. Try:\n\nmake IN_SOURCE_DIR=<PATH TO SOURCE TRUNK>"; exit 1; fi
$(CXX) $(CFLAGS) $(INC) -o plugin.cpp.o -c plugin.cpp
$(CXX) $(CFLAGS) $(INC) -o LogicalFile1.cpp.o -c File1/LogicalFile1.cpp
$(CXX) $(CFLAGS) $(INC) -o PhysicalFile1.cpp.o -c File1/PhysicalFile1.cpp
$(CXX) $(CFLAGS) $(INC) -o LogicalFile2.cpp.o -c File2/LogicalFile2.cpp
$(CXX) $(CFLAGS) $(INC) -o PhysicalFile2.cpp.o -c File2/PhysicalFile2.cpp
### etc.
$(CXX) $(CFLAGS) $(INC) -o libname.so \
plugin.cpp.o \
LogicalFile1.cpp.o \
PhysicalFile1.cpp.o \
LogicalFile2.cpp.o \
PhysicalFile2.cpp.o \
### etc \
$(LIBS)
clean:
rm -f *.o *.so
The biggest issue I have is that there is only one rule (all), and I cannot find an example of a Makefile that does this or how to split it into multiple rules.
In this case, it's actually pretty straightforward. Right now, you just have an all target that's doing all the building. You need to break out the compiler invocations and link step into their own rules, and you should be off to the races:
BOOST_LOCATION=/usr/local/boost_1_54_0
CFLAGS=-pedantic -W -Wextra -Wall -Wno-strict-aliasing -Wno-long-long -Wno-unused-parameter -fPIC -D__STDC_FORMAT_MACROS -Wno-system-headers -isystem -O2 -g -DNDEBUG -ggdb3 -D__STDC_LIMIT_MACROS
INC=-I. -DPROJECT_ROOT="\"$(IN_SOURCE_DIR)\"" -I"$(IN_SOURCE_DIR)/include" -I"$(BOOST_LOCATION)"
LIBS=-L"$(IN_SOURCE_DIR)/lib" -shared -Wl,-soname,libname.so -L. -lm
all: plugin.cpp.o LogicalFile1.cpp.o PhysicalFile1.cpp.o LogicalFile2.cpp.o PhysicalFile2.cpp.o
$(CXX) $(CFLAGS) $(INC) -o libname.so \
plugin.cpp.o \
LogicalFile1.cpp.o \
PhysicalFile1.cpp.o \
LogicalFile2.cpp.o \
PhysicalFile2.cpp.o \
### etc \
$(LIBS)
plugin.cpp.o: plugin.cpp | test
$(CXX) $(CFLAGS) $(INC) -o plugin.cpp.o -c plugin.cpp
LogicalFile1.cpp.o: File1/LogicalFile1.cpp | test
$(CXX) $(CFLAGS) $(INC) -o LogicalFile1.cpp.o -c File1/LogicalFile1.cpp
PhysicalFile1.cpp.o: File1/PhysicalFile1.cpp | test
$(CXX) $(CFLAGS) $(INC) -o PhysicalFile1.cpp.o -c File1/PhysicalFile1.cpp
LogicalFile2.cpp.o: File2/LogicalFile2.cpp | test
$(CXX) $(CFLAGS) $(INC) -o LogicalFile2.cpp.o -c File2/LogicalFile2.cpp
PhysicalFile2.cpp.o: File2/PhysicalFile2.cpp | test
$(CXX) $(CFLAGS) $(INC) -o PhysicalFile2.cpp.o -c File2/PhysicalFile2.cpp
test:
#if test ! -d "$(IN_SOURCE_DIR)"; then echo "Error. Try:\n\nmake IN_SOURCE_DIR=<PATH TO SOURCE TRUNK>"; exit 1; fi
clean:
rm -f *.o *.so
.PHONY: all clean test
From this point, you can simplify further, too. You could consolidate all of the compile lines into a single pattern rule, for example.
If you're willing to use the standard formats and built-in rules for make, you can write your entire makefile as easily as this:
ifeq (,$(wildcard $(IN_SOURCE_DIR)/.))
$(error Try: make IN_SOURCE_DIR=<PATH TO SOURCE TRUNK>)
endif
OBJECTS = plugin.o LogicalFile1.o PhysicalFile1.o LogicalFile2.o PhysicalFile2.o ### etc
BOOST_LOCATION = /usr/local/boost_1_54_0
CPPFLAGS = -DNDEBUG -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I. -DPROJECT_ROOT="\"$(IN_SOURCE_DIR)\"" -I"$(IN_SOURCE_DIR)/include" -I"$(BOOST_LOCATION)"
CXXFLAGS = -pedantic -W -Wextra -Wall -Wno-strict-aliasing -Wno-long-long -Wno-unused-parameter -fPIC -Wno-system-headers -isystem -O2 -g -ggdb3
LDFLAGS = -L"$(IN_SOURCE_DIR)/lib" -L.
LDLIBS = -shared -Wl,-soname,libname.so -lm
all: libname.so
libname.so: $(OBJECTS)
$(LINK.cc) $^ $(LDLIBS) -o $#
clean:
rm -f *.o *.so
.PHONY: all clean

How do I make a target in a makefile invoke another target in the makefile

So I have this makefile and I want the target all just to invoke the target expertest, but apparently the way I'm doing it is wrong because i'm getting the error
"make: exprtest: Command not found
make: * [all] Error 127
"
this is the makefile:
all:
exprtest
exprtest: exptrtest.o driver.o parser.tab.o scanner.o
g++ -Wall -g -o exprtest exptrtest.o driver.o parser.tab.o scanner.o
driver.o: driver.cpp scanner.hpp driver.hpp
g++ -Wall -g -c driver.cpp
parser.tab.o: parser.tab.hpp parser.tab.cpp
bison parser.ypp
g++ -Wall -g -c parser.tab.cpp
scanner.o: scanner.cpp scanner.hpp
flex -t scanner.ll > scanner.cpp
g++ -Wall -g -c scanner.cpp
clean:
rm parser.tab.hpp parser.tab.cpp scanner.cpp
And you can always have make call a new instance of make.
For example:
all:
$(MAKE) exprtest
exprtest:
do exprtest stuff
Typing make all will indirectly do make exprtest.
Put exprtest on the same line as all. Dependencies come after the colon, commands come on the following lines, indented.
target: dependencies
[tab] system command
So in your case it all becomes:
all: exprtest
exprtest: exptrtest.o driver.o parser.tab.o scanner.o
g++ -Wall -g -o exprtest exptrtest.o driver.o parser.tab.o scanner.o
You want to do something like
all: exprtest
What that says is "all depends on exprtest to be successful".