I'm working through an OpenGL tutorial (OpenGL SuperBible 5) and I'm trying to get the supplied Makefile to work for my own program. I'm trying to get make to access a header file GLTools.h in my /home/ben/lib/GLTools/include/ directory and I'm including it in my Makefile with -I/home/ben/lib/GLTools/include/ (actually I'm using -I$(SHAREDINCPATH)) but make complains that there is no such file. Here is my Makefile (I've explicitly mentioned where I have edited the original Makefile):
MAIN = Triangle
SRCPATH = ./ # Edited: src is in CWD
SHAREDPATH = /home/ben/lib/GLTools/src/ # Edited to copied GLTools/src dir
SHAREDINCPATH = /home/ben/lib/GLTools/include/ # Edited to copied dir
LIBDIRS = -L/usr/X11R6/lib -L/usr/X11R6/lib64 -L/usr/local/lib
INCDIRS = -I/usr/include -I/usr/local/include -I/usr/include/GL -I$(SHAREDINCPATH) -I$(SHAREDINCPATH)GL
CC = g++
CFLAGS = $(COMPILERFLAGS) -g $(INCDIRS)
LIBS = -lX11 -lglut -lGL -lGLU -lm
prog : $(MAIN)
$(MAIN).o : $(SRCPATH)$(MAIN).cpp
glew.o : $(SHAREDPATH)glew.c
GLTools.o : $(SHAREDPATH)GLTools.cpp
GLBatch.o : $(SHAREDPATH)GLBatch.cpp
GLTriangleBatch.o : $(SHAREDPATH)GLTriangleBatch.cpp
GLShaderManager.o : $(SHAREDPATH)GLShaderManager.cpp
math3d.o : $(SHAREDPATH)math3d.cpp
$(MAIN) : $(MAIN).o glew.o
$(CC) $(CFLAGS) -o $(MAIN) $(LIBDIRS) $(SRCPATH)$(MAIN).cpp $(SHAREDPATH)glew.c $(SHAREDPATH)GLTools.cpp $(SHAREDPATH)GLBatch.cpp $(SHAREDPATH)GLTriangleBatch.cpp $(SHAREDPATH)GLShaderManager.cpp $(SHAREDPATH)math3d.cpp $(LIBS)
clean:
rm -f *.o
...and here is the make complaint:
ben#crunchbang:~/Code/C++/OpenGL/SuperBible5/SB5/Listings$ make
g++ -c -o Triangle.o Triangle.cpp
Triangle.cpp:4:50: fatal error: GLTools.h: No such file or directory
compilation terminated.
make: *** [Triangle.o] Error 1
As a sanity check I'm printing out the location of GLTools.h:
ben#crunchbang:~/Code/C++/OpenGL/SuperBible5/SB5/Listings$ ls /home/ben/lib/GLTools/include/
GL GLFrame.h GLMatrixStack.h GLTriangleBatch.h
GLBatchBase.h GLFrustum.h GLShaderManager.h math3d.h
GLBatch.h GLGeometryTransform.h GLTools.h StopWatch.h
Any idea why I cannot compile? I am pointing right at the GLTools.h with INCDIRS, right?
Also, I cannot find a declaration of COMPILERFLAGS anywhere in the makefile -- is this system-defined?
for g++ you need to define in your makefile
CXXFLAGS = $(COMPILERFLAGS) -g $(INCDIRS)
And since you use both C files and C++ files then define both in your makefile:
CFLAGS = $(COMPILERFLAGS) -g $(INCDIRS)
CXXFLAGS = $(COMPILERFLAGS) -g $(INCDIRS)
CFLAGS is used by make when it compiles C files, CXXFLAGS is used when make compiles C++ files. See http://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html
CFLAGS
Extra flags to give to the C compiler.
CXXFLAGS
Extra flags to give to the C++ compiler.
Related
i have make file which i try to make them generic
but it keeps to compline it missing include directory
this is the makefile :
CXX=g++
CPPFAGS= -Wall -O0 -g -std=c++14
INCLUDES = -I/home/vagrant/libuv/include -Isrc
LIBS_DIRS = -L/home/vagrant/libuv/build
LDFLAGS= -lssl -lcrypto
LIB_STATIC = -Wl,--no-as-needed -Bstatic -luv_a -ldl -lpthread
SOURCE = $(wildcard echo.cpp) \
$(wildcard src/*.cpp)
OBJ = $(SOURCE:.cpp=.o)
DEP = $(OBJ:.o=.d)
TARGET = myproj
$(TARGET) : $(OBJ)
$(CXX) $(CPPFLAGS) $(INCLUDES) -o $# $^ $(LIBS_DIRS) $(LDFLAGS) $(LIB_STATIC)
all: $(TARGET)
clean:
rm -f $(OBJ) $(TARGET)
cleandep:
rm -f $(DEP)
.PHONY:all clean cleandep
when i make : make -n :
make -n
g++ -c -o echo.o echo.cpp
g++ -c -o src/base64.o src/base64.cpp
g++ -c -o src/Server.o src/Server.cpp
g++ -c -o src/sha1.o src/sha1.cpp
g++ -c -o src/Client.o src/Client.cpp
g++ -I/home/vagrant/libuv/include -Isrc -o myproj echo.o src/base64.o src/Server.o src/sha1.o src/Client.o -L/home/vagrant/libuv/build -lssl -lcrypto -Wl,--no-as-needed -Bstatic -luv_a -ldl -lpthread
when i invoke make , im getting this error:
make
g++ -c -o echo.o echo.cpp
In file included from src/Server.h:9:0,
from echo.cpp:1:
src/Client.h:6:10: fatal error: uv.h: No such file or directory
#include <uv.h>
^~~~~~
compilation terminated.
make: *** [echo.o] Error 1
but the uv do exist in : /home/vagrant/libuv/include
You have no rule to build your object files: you've only defined a rule to link your object files into a final executable. As mentioned in the comments, adding $(INCLUDES) into that recipe is useless because header file directories are only used during compiling (creating object files) not linking (converting object files and libraries into executables).
Because you haven't defined your own rule to build object files, you're using make's built-in rule. But make's built-in rule doesn't know anything about a variable named INCLUDES, so that variable is not used during compilation. You can easily see this by looking at the compiler commands generated by make.
You need to either (a) create your own rule for compiling object files that uses your personal make variables, or (b) use the normal built-in variables that make expects to be used with its built-in rules.
For (b), as described in the manual, you should take your current CPPFAGS [sic] variable and rename it to CXXFLAGS, take your current INCLUDES variable and rename it CPPFLAGS, take your current LIBS_DIRS variable and rename it LDFLAGS, and take your current LDFLAGS variable and rename it to LDLIBS.
Also just to note, you have DEPS etc. but there is nothing in your makefile that does anything with them or to create them so they're useless.
I have a makefile that I need to modify to include the path to libraries.I am trying to run program given to me by someone else. I'm really confused on how the makefile works and don't understand what the previous lines are.
These are the directions given to me to modify the makefile:
Change the lines:
INCS = -I"../../LIB/libpca/include"
LIBS = -L"../../LIB/libpca/build" -lpca -larmadillo
in the Makefile to represent the folder where you installed the libpca and armadillo libraries.
Now I now what my new paths are:
Desktop/PCA-CD/Libraries
but I don't understand what is is that I really need to change.
Here is what the makefile looks like:
PROG = CD
UNAME := $(shell uname)
ifeq ($(UNAME), Darwin)
CXX = clang++ -stdlib=libc++
else
CXX = g++
endif
FLAGS = -O0 -g3 -Wall -std=c++0x -pthread
INCS = -I"../../LIB/libpca/include"
LIBS = -L"../../LIB/libpca/build" -lpca -larmadillo
SRCS = CD.cpp
RM = rm -f
all :
$(CXX) $(FLAGS) $(INCS) $(SRCS) $(LIBS) -o $(PROG)
# $(CXX) $(FLAGS) $(SRCS) -o $(PROG)
clean :
$(RM) $(PROG)
Thanks for any help provided.
I think they're suggesting to change the line:
INCS = -I"../../LIB/libpca/include"
LIBS = -L"../../LIB/libpca/build" -lpca -larmadillo
to
INCS = -I"Desktop/PCA-CD/Libraries/include"
LIBS = -L"Desktop/PCA-CD/Libraries/build" -lpca -larmadillo
Notice that Desktop/PCA-CD/Libraries is a relative path, and assumes that the library is stored in the subdirectory of the build directory. From your build directory, try running ls Desktop/PCA-CD/Libraries/build, to confirm it is right path. If it's not, replace it with the absolute path of the directory where you installed the library.
I have the makefile given below. When I do make I get the following error
cc -c -o timing.o timing.c
test_c.c:5:17: fatal error: test.h: No such file or directory
#include "test.h"
I have manually verfied that test.h is present in ../include path. I am not sure why this is not finding the header file.It would be great if someone could help.Also I would expect g++ instead of cc
# Makefile template for shared library
CXX = g++ # C++ compiler
CXXFLAGS = -fPIC -Wall -Wextra -O2 -g -I../include #CXX flags
LDFLAGS = -lboost_system -shared # linking flags
RM = rm -f # rm command
TARGET_LIB = libtest.a # target lib
C_SRCS := test_a.c test_b.c
CPP_SRCS := test_c.cpp test_d.cpp
OBJS := $(C_SRCS:.c=.o) $(CPP_SRCS:.cpp=.o)
.PHONY: all
all: ${TARGET_LIB}
$(TARGET_LIB): $(OBJS)
$(CXX) $(CXXFLAGS) ${LDFLAGS} -o $# $^
.PHONY: clean
clean:
-${RM} ${TARGET_LIB} ${OBJS}
~
You have not written a rule for building timing.o from timing.c, so Make uses the default rule it has for that.
But that rule uses CFLAGS, not CXXFLAGS. The CXXFLAGS variable appears in the rule for building object files from C++ sources.
So modify CFLAGS instead of CXXFLAGS, and it should work.
# Compiler to use
CC = g++
# flags to pass compiler
CFLAGS = -ggdb3 -O0 -std=c99 -Wall -Werror
# Name for the executable
EXE = test
# space-separated list of header files
HDRS = simplegui.h globals.h timer.h tile.h gamesprites.h
# space-separated list of libraries, if any,
# each of which should be prefixed with -l
LIBS = -lSDLmain -lSDL -lSDL_image -lSDL_mixer -lSDL_ttf
# space-separated list of source files
SRCS = main.cpp gamesprites.cpp simplegui.cpp tile.cpp timer.cpp
# automatically generated list of object files
OBJS = $(SRCS:.cpp=.o)
# default target
$(EXE): $(OBJS) $(HDRS) Makefile
$(CC) -IC:\SDL-1.2.15\include -LC:\SDL-1.2.15\lib $(CFLAGS) -o $# $(OBJS) $(LIBS)
# dependencies
$(OBJS): $(HDRS) Makefile
It does not work with the makefile. My other approach was:
g++ -IC:\SDL-1.2.15\include -o test main.cpp -LC:\SDL-1.2.15\lib -lSDLmain -lSDL -lSDL_image -lSDL_ttf -lSDL_mixer
It worked initially, I don't know what I changed, no it doesn't work, it keeps telling that it does not find the directory. Previously it did find the directory, but yelled at me about dependencies. I am frustrated cannot find an answer. How do I compile a program that has many .h .cpp files, and that has .h files in other directories? Neither approach I showed, worked... (However I CAN compile the code using my IDE that is configured, but I don't remember how, and I will format my pc soon.
EDIT:
EDIT: Changed \ to /, now I have this:
Not the best solution, but I was a fool. I had "redundant" code, it got fixed when I wrote the following Makefile:
# Compilador a utilizar
CC = g++
# Libraries
LIBS = -lmingw32 -lSDLmain -lSDL -lSDL_image -lSDL_ttf -lSDL_mixer
# Codigo
SRC = main.cpp timer.cpp simplegui.cpp gamesprites.cpp
# Object files
OBJS = $(SRC:.cpp=.o)
# Nombre del ejecutable
EXE = juego_naves
all: $(SRC) $(EXE)
$(OBJS):
g++ -IC:/SDL-1.2.15/include -c $(SRC)
$(EXE): $(OBJS)
g++ -LC:/SDL-1.2.15/lib -o $# $(OBJS) $(LIBS)
clean:
rm -rf *.o $(EXE).exe
I am trying to work through the following http://www.cs.columbia.edu/~keenan/Projects/DGPDEC/paper.pdf. The following source files are used to illustrate what is going on https://github.com/dgpdec/course. Now I cannot get it to work. Here is what I tried:
First I went into the folder 'basecode', edited the Makefile to have the right include and library paths. Then I want to make but it gives me the error
'ostream’ in namespace ‘std’ does not name a type
I looked for this error online but I could not find a solution to the problem. In the included file libddg_userguide.pdf it says that I should edit the Makefile in root libddg folder but I don't know which folder that is. I am sorry for the kind of nooby question but I am really stuck and have been trying for a long time. Here is the Makefile I used (in the Basecode folder) for reference:
##########################################################################################
# Specify library locations here (add or remove "#" marks to comment/uncomment lines for your platform)
# Linux
DDG_INCLUDE_PATH = -I/usr/include/ -I/usr/local/include -I/usr/include/suitesparse
DDG_LIBRARY_PATH = -L/usr/lib -L/usr/local/lib
DDG_BLAS_LIBS = -llapack -lblas -lgfortran
DDG_SUITESPARSE_LIBS = -lspqr -lcholmod -lmetis -lcolamd -lccolamd -lcamd -lamd -lm
DDG_OPENGL_LIBS = -lglut -lGL -lGLU -lX11
########################################################################################
TARGET = ddg
CC = g++
LD = g++
CFLAGS = -O3 -Wall -Werror -ansi -pedantic $(DDG_INCLUDE_PATH) -I./include -I./src
LFLAGS = -O3 -Wall -Werror -ansi -pedantic $(DDG_LIBRARY_PATH)
LIBS = $(DDG_OPENGL_LIBS) $(DDG_SUITESPARSE_LIBS) $(DDG_BLAS_LIBS)
########################################################################################
## !! Do not edit below this line
HEADERS := $(wildcard include/*.h)
SOURCES := $(wildcard src/*.cpp)
OBJECTS := $(addprefix obj/,$(notdir $(SOURCES:.cpp=.o)))
all: $(TARGET)
$(TARGET): $(OBJECTS)
$(LD) $(OBJECTS) -o $(TARGET) $(CFLAGS) $(LFLAGS) $(LIBS)
obj/%.o: src/%.cpp ${HEADERS}
$(CC) -c $< -o $# $(CFLAGS)
clean:
rm -f $(OBJECTS)
rm -f $(TARGET)
rm -f $(TARGET).exe
Thanks in advance for any help!
It means there is a bug in the code: a header's missing because someone made an assumption.
Your particular toolchain does not satisfy that assumption.
Find the problematic file (you didn't say which it is) and add #include <ostream> to it.
(course/Connection/include/DenseMatrix.h appears to be one such file; there may be others.)
N.B. I must say that, despite the bug, overall this is incredibly good C++ code for a University course. I'm impressed.