I am trying to cross compile my hello world app on C from Ubuntu linux for Windows platform. So, to compile the app I am using this Makefile:
CC = g++
IDIR = -Iinclude
SRC = src
CFLAGS = -Wall -Wextra
LFLAGS = -mwindows
main.out: main.o
$(CC) $(CFLAGS) $(IDIR) $(LFLAGS) $^ -o $#
main.o: $(SRC)/main.c
$(CC) $(CFLAGS) $(IDIR) -c -o $# $^
As the result of cmmand make -f windows.mk I have such error:
g++: error: unrecognized command line option ‘-mwindows’
I have already tried gcc and g++. Is there way to compile it without making my own crosscompiler?
To cross compile for windows you would need mingw-w64 or use i686-w64-mingw32-g++
sudo apt-get install mingw-w64 For more info :
https://arrayfire.com/cross-compile-to-windows-from-linux/
Thanks a lot #HolyBlackCat
I've tried to using x86_64-w64-mingw32-g++ instead of just g++ or gcc without -mwindows and it succeed.
Related
I'm trying to build a python wrapper using the following Makefile:
CC=/usr/local/opt/llvm/bin/clang
OS_NAME=$(shell uname -s)
ifeq ($(OS_NAME),Linux)
LAPACKLDFLAGS=/usr/lib64/atlas/libsatlas.so # single-threaded blas
#LAPACKLDFLAGS=/usr/lib64/atlas/libtatlas.so # multi-threaded blas
#BLAS_THREADING=-D MULTITHREADED_BLAS # remove this if wrong
endif
ifeq ($(OS_NAME),Darwin) # Mac OS X
LAPACKLDFLAGS=-framework Accelerate # for OS X
endif
LAPACKCFLAGS=-Dinteger=int $(BLAS_THREADING)
STATICLAPACKLDFLAGS=-fPIC -Wall -g -fopenmp -static -static-libstdc++ /home/lear/douze/tmp/jpeg-6b/libjpeg.a /usr/lib64/libpng.a /usr/lib64/libz.a /usr/lib64/libblas.a /usr/lib/gcc/x86_64-redhat-linux/4.9.2/libgfortran.a /usr/lib/gcc/x86_64-redhat-linux/4.9.2/libquadmath.a # statically linked version
CFLAGS= -fPIC -Wall -g -std=c++11 $(LAPACKCFLAGS) -fopenmp -DUSE_OPENMP -O3
LDFLAGS=-fPIC -Wall -g -ljpeg -lpng -fopenmp
CPYTHONFLAGS=-I/usr/include/python2.7
SOURCES := $(shell find . -name '*.cpp' ! -name 'deepmatching_matlab.cpp')
OBJ := $(SOURCES:%.cpp=%.o)
HEADERS := $(shell find . -name '*.h')
all: deepmatching
.cpp.o: %.cpp %.h
$(CC) -o $# $(CFLAGS) -c $+
deepmatching: $(HEADERS) $(OBJ)
$(CC) -o $# $^ $(LDFLAGS) $(LAPACKLDFLAGS)
deepmatching-static: $(HEADERS) $(OBJ)
$(CC) -o $# $^ $(STATICLAPACKLDFLAGS)
python: $(HEADERS) $(OBJ)
# swig -python $(CPYTHONFLAGS) deepmatching.i # not necessary, only do if you have swig compiler
/usr/local/opt/llvm/bin/clang $(CFLAGS) -c deepmatching_wrap.c $(CPYTHONFLAGS)
/usr/local/opt/llvm/bin/clang -shared $(LDFLAGS) $(LAPACKLDFLAGS) deepmatching_wrap.o $(OBJ) -o _deepmatching.so $(LIBFLAGS)
clean:
rm -f $(OBJ) deepmatching *~ *.pyc .gdb_history deepmatching_wrap.o _deepmatching.so deepmatching.mex???
Previously, CC was set to g++, however, when I tried to build it like this, I'd get "ERROR: clang: error: unsupported option '-fopenmp".
Now I installed "brew install llvm" as this comes with the -fopenmp option. The unsupported error is resolved for now, but now the compiler doesn't seem to find a header file:
(base) MacBook-Pro-van-Brent:deepmatching BrentDeHauwere$ make python
/usr/local/opt/llvm/bin/clang -o hog.o -fPIC -Wall -g -std=c++11 -Dinteger=int -fopenmp -DUSE_OPENMP -O3 -I/usr/local/opt/llvm/include -c hog.cpp
In file included from hog.cpp:18:
In file included from ./std.h:20:
/usr/local/opt/llvm/bin/../include/c++/v1/math.h:300:15: fatal error: 'math.h' file not found
#include_next <math.h>
^~~~~~~~
1 error generated.
make: *** [hog.o] Error 1
I've tried setting options (I might have set them incorrectly) like -L/usr/local/opt/llvm/lib and -I/usr/local/opt/llvm/include, but no result so far. Any idea how I could point the compiler to the right direction for the header files?
Try running xcode-select —install in your terminal. This installs the xcode command line tools which should also install system headers files (as part of the macos sdk) and set your system include paths.
Is there any guide how to configure the .yml file on the Travis to get the LLVM >= 3.8?
This is the part of the Makefile that I'm using to compile my program:
all: program
OBJS = obj1.o obj2.o obj3.o obj4.o
CPPFL = `llvm-config --cppflags` -std=c++11
LDFL = `llvm-config --ldflags` -lpthread -ldl -lz -lncurses -rdynamic
LIBS = `llvm-config --libs`
program: $(OBJS)
g++ -o $# $(OBJS) $(LIBS) $(LDFL)
%.o: %.cpp
g++ -c $(CPPFL) -o $# $<
Thanks in advance.
This is still an open issue.
The most relevant examples I could find to help are this and this.
So yeah, you basically need to set up the specific toolchain yourself on the Travis VM.
PS: I could have added this as a comment, but not enough rep :S
i'm trying to use the boost_math libs on OS X (i'm not using Xcode), specifically the one containing the error function
I downloaded and compiled boost_1_60_0 myself (using bootstrap.sh and following the instructions.) I didn't use home-brew or something else, which might be why my installation seems so screwed up.
What i'm trying to include in my Szabo.hpp is this:
#include <boost/math/special_functions/erf.hpp>
My makefile goes like this:
LIB_FLAGS = -L/Documents/boost_1_60_0/stage/lib -lboost_math
ALL_OBJECTS = main.o Gaussienne.o Grille.o Szabo.o
all: $(ALL_OBJECTS)
g++ -o hydrogene $(ALL_OBJECTS) $(LIB_FLAGS)
Gaussienne.o: Gaussienne.cpp
g++ -o Gaussienne.o -c Gaussienne.cpp -W -Wall -ansi
main.o: Gaussienne.hpp Grille.hpp main.cpp Szabo.o
g++ -o main.o -c main.cpp -W -Wall -ansi
Grille.o: Grille.cpp Gaussienne.cpp
g++ -o Grille.o -c Grille.cpp -W -Wall -ansi
Szabo.o: Szabo.cpp Gaussienne.cpp
g++ -o Szabo.o -c Szabo.cpp -W -Wall -ansi
clean:
rm -rf *.o
mrproper: clean
rm -rf hydrogene
I get no linking error from g++, however i got:
In file included from Szabo.cpp:12:
./Szabo.hpp:21:10: fatal error: 'boost/math/special_functions/erf.hpp' file not found
#include <boost/math/special_functions/erf.hpp>
^
1 error generated.
Can you please provide help on how to fix this? Thanks in advance
Ok so apparently likes this, it works:
LIB_FLAGS = -L/Users/devolution/Documents/boost_1_60_0/stage/lib -lboost_math_tr1
I_FLAGS = -I/Users/devolution/Documents/boost_1_60_0/
ALL_OBJECTS = main.o Gaussienne.o Grille.o Szabo.o
all: $(ALL_OBJECTS)
g++ -o hydrogene $(ALL_OBJECTS) $(LIB_FLAGS)
Gaussienne.o: Gaussienne.cpp
g++ -o Gaussienne.o -c Gaussienne.cpp -ansi ${I_FLAGS}
main.o: Gaussienne.hpp Grille.hpp main.cpp Szabo.o
g++ -o main.o -c main.cpp -ansi ${I_FLAGS}
Grille.o: Grille.cpp Gaussienne.cpp
g++ -o Grille.o -c Grille.cpp -ansi ${I_FLAGS}
Szabo.o: Szabo.cpp Gaussienne.cpp
g++ -o Szabo.o -c Szabo.cpp -ansi ${I_FLAGS}
.PHONY: clean mrproper
clean:
rm -rf *.o
mrproper: clean
rm -rf hydrogene
Is there a way to pass I_FLAGS?
You've compiled Boost's separately-compiled libraries, which is great, but you didn't copy the headers to your toolchain's include path. Indeed, most of Boost is comprised of header-only libraries, so this is arguably the more crucial step of installing Boost.
The internet tells me you may be able to find the default header search path with the following command at shell:
gcc -x c++ -v -E /dev/null
(https://stackoverflow.com/a/19852298/560648)
When you find it, copy the distribution's boost subdirectory to it.
And, yes, having home-brew install Boost for you would have been much easier… probably one command!
As the title states I'm trying to create a makefile for compiling C++ programs using SDL2 on Windows. I have MinGW installed and working. I'm using Sublime 2 as my environment. Here's what I have so far:
CXX = g++
CXXFLAGS = -std=c++0x -g -O3 -w -Wl,-subsystem,windows
INCLFLAGS = -IC:\Libraries\i686-w64-mingw32\include\SDL2
LDFLAGS = -LC:\Libraries\i686-w64-mingw32\lib -lmingw32 -lSDL2main -lSDL2
OBJECTS = main.o
TARGET = 1_hellosdl
$(TARGET) : $(OBJECTS)
$(CXX) $(INCLFLAGS) $(LDFLAGS) $(CXXFLAGS) -o $(TARGET) $(OBJECTS)
main.o :
clean:
rm -rf $(OBJECTS) $(TARGET)
remake:
clean $(TARGET)
Right now when I compile I get the following error:
g++ -std=c++0x -g -O3 -w -Wl,-subsystems,windows -c -o main.o main.cpp
In file included from main.cpp:1:0:
main.hpp:4:17: fatal error: SDL.h: No such file or directory
#include <SDL.h>
So the issue is that g++ can't find the SDL include file when it tries to compile main.cpp. I get that this is because $(INCLFLAGS) isn't being added to the line under main.o :.
Optimally, I'd like to specify INCLFLAGS implicitly similar to CXXFLAGS and LDFLAGS, but based on this it doesn't look like it's possible.
Is there a way to do this using an implicit variable or, failing that, what's the best alternative? Is there anything else I am doing wrong?
I managed to solve this by moving $(INCLFLAGS) into $(CXXFLAGS):
INCLFLAGS = -IC:\Libraries\i686-w64-mingw32\include\SDL2
CXXFLAGS = $(INCLFLAGS) -std=c++0x -g -O3 -w -Wl,-subsystem,windows
Additionally, I had to move $(LDFLAGS) to the end in order for it to link correctly:
$(TARGET) : $(OBJECTS)
$(CXX) $(CXXFLAGS) -o $(TARGET) $(OBJECTS) $(LDFLAGS)
I am working on a C++ project and I need to use libtcl.
I am running Ubuntu 12.10 32bits and there is a problem when I try to compile my files :
g++ -o executable executable.o -L/usr/share/tcltk -lncurses -ltcl
/usr/bin/ld: cannot find -ltcl
libncurses is found but not libtcl...
Do you have any idea?
I have seen that libtcl8.4.so.0 libtcl8.5.so.0 exist in /usr/lib
The makefile that I am using looks like this :
CC = g++
CFLAGS = -g
LDFLAGS =
EXEC = executable
LIB = -L/usr/share/tcltk -lncurses -ltcl
all: executable
executable: executable.o
$(CC) $(LDFLAGS) -o $(EXEC) executable.o $(LIB)
executable.o: executable.cpp
$(CC) $(CFLAGS) -c executable.cpp
clean:
rm -f executable executable.o
Thanks
(Answered in a comment. See Question with no answers, but issue solved in the comments (or extended in chat) )
#soon wrote:
just create symlink to the your library like so #ln -s /usr/lib/libtcl8.5.so.0 /usr/lib/libtcl.so