I am a beginner, I was trying to get SDL2 to work in clion but I failed.
I've searched on youtube and google but nothing worked. I have SDL2.dll in the same folder as main.cpp
My cmake file looks like this:
cmake_minimum_required(VERSION 3.8)
project(sdlTest)
set(CMAKE_CXX_STANDARD 17)
set(SOURCE_FILES main.cpp)
add_executable(sdlTest ${SOURCE_FILES})
add_library(SDL2.dll SHARED main.cpp)
set_target_properties(SDL2.dll PROPERTIES LINKER_LANGUAGE CXX)
I don't know what I'm doing wrong.
I tried running this example code from sdl:
#include "SDL2/SDL.h"
#include <stdio.h>
int main(int argc, char* argv[]) {
SDL_Window *window; // Declare a pointer
SDL_Init(SDL_INIT_VIDEO); // Initialize SDL2
// Create an application window with the following settings:
window = SDL_CreateWindow(
"An SDL2 window", // window title
SDL_WINDOWPOS_UNDEFINED, // initial x position
SDL_WINDOWPOS_UNDEFINED, // initial y position
640, // width, in pixels
480, // height, in pixels
SDL_WINDOW_OPENGL // flags - see below
);
// Check that the window was successfully created
if (window == NULL) {
// In the case that the window could not be made...
printf("Could not create window: %s\n", SDL_GetError());
return 1;
}
// The window is open: could enter program loop here (see SDL_PollEvent())
SDL_Delay(3000); // Pause execution for 3000 milliseconds, for example
// Close and destroy the window
SDL_DestroyWindow(window);
// Clean up
SDL_Quit();
return 0;
}
and I get this error:
CMakeFiles\sdlTest.dir/objects.a(main.cpp.obj): In function `SDL_main':
C:/Users/Dddsasul/CLionProjects/sdlTest/main.cpp:8: undefined reference to
`SDL_Init'
C:/Users/Dddsasul/CLionProjects/sdlTest/main.cpp:18: undefined reference to
`SDL_CreateWindow'
C:/Users/Dddsasul/CLionProjects/sdlTest/main.cpp:23: undefined reference to
`SDL_GetError'
C:/Users/Dddsasul/CLionProjects/sdlTest/main.cpp:29: undefined reference to
`SDL_Delay'
C:/Users/Dddsasul/CLionProjects/sdlTest/main.cpp:32: undefined reference to
`SDL_DestroyWindow'
C:/Users/Dddsasul/CLionProjects/sdlTest/main.cpp:35: undefined reference to
`SDL_Quit'
c:/mingw/bin/../lib/gcc/mingw32/5.3.0/../../../libmingw32.a(main.o):
(.text.startup+0xa0): undefined reference to `WinMain#16'
collect2.exe: error: ld returned 1 exit status
mingw32-make.exe[3]: *** [sdlTest.exe] Error 1
CMakeFiles\sdlTest.dir\build.make:95: recipe for target 'sdlTest.exe' failed
CMakeFiles\Makefile2:103: recipe for target 'CMakeFiles/sdlTest.dir/all'
failed
CMakeFiles\Makefile2:115: recipe for target 'CMakeFiles/sdlTest.dir/rule'
failed
mingw32-make.exe[2]: *** [CMakeFiles/sdlTest.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles/sdlTest.dir/rule] Error 2
mingw32-make.exe: *** [sdlTest] Error 2
Makefile:130: recipe for target 'sdlTest' failed
I've tried both x64 and x86 and it's the same result but at the same time clion doesn't red-text the code, it thinks it's ok:
Any ideas what I'm doing wrong and how to fix? THANKS!
EDIT:
Cmake looks like this
cmake_minimum_required(VERSION 3.8)
project(sdlTest)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
find_package(SDL2 REQUIRED)
set(SOURCE_FILES main.cpp)
add_executable(sdlTest ${SOURCE_FILES})
set(SDL2_LIBRARY SDL2.dll)
target_link_libraries(sdlTest ${SDL2_LIBRARYS})
I get this error:
Found package configuration file:
C:/MinGW/lib/cmake/SDL2/sdl2-config.cmake
but it set SDL2_FOUND to FALSE so package "SDL2" is considered to be NOT
FOUND.
SECOND EDIT:
sdl2-config.cmake:
# sdl2 cmake project-config input for ./configure scripts
set(prefix "/usr/local/x86_64-w64-mingw32")
set(exec_prefix "${prefix}")
set(libdir "${exec_prefix}/lib")
set(SDL2_PREFIX "/usr/local/x86_64-w64-mingw32")
set(SDL2_EXEC_PREFIX "/usr/local/x86_64-w64-mingw32")
set(SDL2_LIBDIR "${exec_prefix}/lib")
set(SDL2_INCLUDE_DIRS "${prefix}/include/SDL2")
set(SDL2_LIBRARIES "-L${SDL2_LIBDIR} -lmingw32 -lSDL2main -lSDL2 -mwindows")
string(STRIP "${SDL2_LIBRARIES}" SDL2_LIBRARIES)
I have a library that is basically just a bunch of proto files in /usr/include/ignition/msgs1/ignition/msgs. I am trying to make a custom message that uses ignition::msgs::Vector3d and ignition::msgs::Quaternion.
Here is my state.proto
syntax = "proto2";
package cdrone.messages;
import "quaternion.proto";
import "vector3d.proto";
message State
{
required int64 time = 1;
required Vector3d position = 2;
required Vector3d velocity = 3;
required Quaternion attitude = 4;
required Vector3d angular_velocity = 5;
}
Here is the CMakeLists.txt I am using to compile the protobufs:
include_directories(${PROTOBUF_INCLUDE_DIRS})
set(PROTOBUF_INCLUDE_DIRS ${PROTOBUF_INCLUDE_DIRS} "/usr/include/ignition/msgs1/ignition/msgs")
set(ProtoFiles
gamepad.proto
motor_power.proto
/usr/include/ignition/msgs1/ignition/msgs/vector3d.proto
/usr/include/ignition/msgs1/ignition/msgs/quaternion.proto
state.proto)
PROTOBUF_GENERATE_CPP(ProtoSources ProtoHeaders ${ProtoFiles})
add_library(messages SHARED ${ProtoSources})
target_link_libraries(messages ${PROTOBUF_LIBRARY})
It looks like it finds the vector3d.proto and quaternion.proto, but when it tries to import another proto inside either vector3d.proto or quaternion.proto, it fails to find that new import.
$ make
[ 5%] Built target cpptoml-parser
[ 10%] Built target cpptoml-build
[ 15%] Built target cpptoml-conversions
[ 21%] Built target parse
[ 23%] Running C++ protocol buffer compiler on state.proto
ignition/msgs/header.proto: File not found.
quaternion.proto: Import "ignition/msgs/header.proto" was not found or had errors.
quaternion.proto:32:12: "Header" is not defined.
vector3d.proto: Import "ignition/msgs/header.proto" was not found or had errors.
vector3d.proto:32:12: "Header" is not defined.
state.proto: Import "quaternion.proto" was not found or had errors.
state.proto: Import "vector3d.proto" was not found or had errors.
state.proto:12:12: "Vector3d" is not defined.
state.proto:13:12: "Vector3d" is not defined.
state.proto:14:12: "Quaternion" is not defined.
state.proto:15:12: "Vector3d" is not defined.
src/common/messages/CMakeFiles/messages.dir/build.make:94: recipe for target 'src/common/messages/state.pb.cc' failed
make[2]: *** [src/common/messages/state.pb.cc] Error 1
CMakeFiles/Makefile2:413: recipe for target 'src/common/messages/CMakeFiles/messages.dir/all' failed
make[1]: *** [src/common/messages/CMakeFiles/messages.dir/all] Error 2
Makefile:151: recipe for target 'all' failed
make: *** [all] Error 2
I have a program to recognize files based on their signatures. Works great. But I'm new to C and am now trying to get an IDE called CLion to work. However, I can't figure out how to add command arguments to cmake - such that when I run main and want to pass a gifFile or a pdfFile to recognize I can do so. Here is my code so far for cmake.
cmake_minimum_required(VERSION 3.8)
project(Assignment6)
set(CMAKE_C_STANDARD 99)
set(SOURCE_FILES file_recognizer.c)
add_executable(Assignment6 ${SOURCE_FILES})
in the command line this would be something like
gcc file_recognizer.c -o Assignment6
and then you say
./Assignment6 gifFile.gif
How do I get cmake to accept the argument at the end, "gifFile.gif"?
Below is my main function for reference if needed
int main(int argc, char const *argv[]) {
FILE *yourFile;
unsigned char *fileBytes, *fileType;
long fileLength;
fileLength = 10;
if(argc != 2 || (yourFile = fopen(argv[1], "rb")) == NULL) {
printf("Invalid Input\n");
exit(-1);
}
fileBytes = readFile(yourFile, fileLength, fileBytes);
determineFileType(fileBytes, fileType);
return 0;
}
This isn't something CMake is designed to do. I mean, it's do-able with CMake:
add_custom_command(OUTPUT output COMMAND Assignment6 ARGS gifFile.gif)
But what it sounds like what you want to do isn't part of the build process and CMake is all about the building, testing, and packaging software, not running it.
Since you're using CLion, you might be better off setting the program arguements in CLion for debugging purposes.
Click here:
and enter your args here:
I am trying to install aruco on my Windows machine using cmake 3.5.2 as suggested by the aruco developper.
My config:
Windows8
CMake 3.5.2
ArUco 2.0.5
I can configure and generate successfully aruco in cmake.
Then I go to aruco\build -> right click-> open cmd -> type mingw32-make -> get the following error:
C:\aruco-2.0.5\build>mingw32-make
Scanning dependencies of target aruco
[ 2%] Building CXX object src/CMakeFiles/aruco.dir/ar_omp.cpp.obj
[ 4%] Building CXX object src/CMakeFiles/aruco.dir/cameraparameters.cpp.obj
[ 6%] Building CXX object src/CMakeFiles/aruco.dir/cvdrawingutils.cpp.obj
In file included from C:\aruco-2.0.5\src\aruco.h:149:0,
from C:\aruco-2.0.5\src\cvdrawingutils.h:31,
from C:\aruco-2.0.5\src\cvdrawingutils.cpp:28:
C:\aruco-2.0.5\src\markerdetector.h:160:40: warning: "/*" within comment [-Wcomm
ent]
ARUCO_MIP_36h12, //**** recommended
^
C:\aruco-2.0.5\src\markerdetector.h:212:60: warning: unused parameter 'r2' [-Wun
used-parameter]
void setThresholdParamRange(size_t r1 = 0, size_t r2 = 0) {_params. _thresP
aram1_range = r1; }
^
C:\aruco-2.0.5\src\markerdetector.h:267:30: warning: unused parameter 'val' [-Wu
nused-parameter]
void setDesiredSpeed(int val){}
^
In file included from C:\aruco-2.0.5\src\posetracker.h:33:0,
from C:\aruco-2.0.5\src\aruco.h:150,
from C:\aruco-2.0.5\src\cvdrawingutils.h:31,
from C:\aruco-2.0.5\src\cvdrawingutils.cpp:28:
C:\aruco-2.0.5\src\markermap.h: In member function 'void aruco::Marker3DInfo::to
Stream(std::ostream&)':
C:\aruco-2.0.5\src\markermap.h:49:77: warning: comparison between signed and uns
igned integer expressions [-Wsign-compare]
void toStream(std::ostream &str){str<<id<<" "<<size()<<" ";for(int i=0;i<si
ze();i++) str<<at(i).x<<" "<<at(i).y<<" "<<at(i).z<<" ";}
^
In file included from C:\aruco-2.0.5\src\posetracker.h:33:0,
from C:\aruco-2.0.5\src\aruco.h:150,
from C:\aruco-2.0.5\src\cvdrawingutils.h:31,
from C:\aruco-2.0.5\src\cvdrawingutils.cpp:28:
C:\aruco-2.0.5\src\markermap.h: In member function 'void aruco::Marker3DInfo::fr
omStream(std::istream&)':
C:\aruco-2.0.5\src\markermap.h:50:80: warning: comparison between signed and uns
igned integer expressions [-Wsign-compare]
void fromStream(std::istream &str){int s;str>>id>>s;resize(s);for(int i=0;i
<size();i++) str>>at(i).x>>at(i).y>>at(i).z;}
^
[ 9%] Building CXX object src/CMakeFiles/aruco.dir/dictionary.cpp.obj
In file included from C:\aruco-2.0.5\src\dictionary.cpp:9:0:
C:\aruco-2.0.5\src\markermap.h: In member function 'void aruco::Marker3DInfo::to
Stream(std::ostream&)':
C:\aruco-2.0.5\src\markermap.h:49:77: warning: comparison between signed and uns
igned integer expressions [-Wsign-compare]
void toStream(std::ostream &str){str<<id<<" "<<size()<<" ";for(int i=0;i<si
ze();i++) str<<at(i).x<<" "<<at(i).y<<" "<<at(i).z<<" ";}
^
In file included from C:\aruco-2.0.5\src\dictionary.cpp:9:0:
C:\aruco-2.0.5\src\markermap.h: In member function 'void aruco::Marker3DInfo::fr
omStream(std::istream&)':
C:\aruco-2.0.5\src\markermap.h:50:80: warning: comparison between signed and uns
igned integer expressions [-Wsign-compare]
void fromStream(std::istream &str){int s;str>>id>>s;resize(s);for(int i=0;i
<size();i++) str>>at(i).x>>at(i).y>>at(i).z;}
^
C:\aruco-2.0.5\src\dictionary.cpp: In static member function 'static std::string
aruco::Dictionary::getTypeString(aruco::Dictionary::DICT_TYPES)':
C:\aruco-2.0.5\src\dictionary.cpp:236:11: warning: enumeration value 'ARTAG' not
handled in switch [-Wswitch]
switch(t){
^
C:\aruco-2.0.5\src\dictionary.cpp: In member function 'aruco::MarkerMap aruco::D
ictionary::createMarkerMap(cv::Size, int, int, const std::vector<int>&, bool)':
C:\aruco-2.0.5\src\dictionary.cpp:275:39: warning: comparison between signed and
unsigned integer expressions [-Wsign-compare]
if (gridSize.height*gridSize.width!=ids.size())throw cv::Exception(9001, "g
ridSize != ids.size()Invalid ", "Dictionary::createMarkerMap", __FILE__, __LINE_
_);
^
C:\aruco-2.0.5\src\dictionary.cpp:284:23: warning: comparison between signed and
unsigned integer expressions [-Wsign-compare]
for (int i=0;i<ids.size();i++) TInfo[i].id=ids[i];
^
C:\aruco-2.0.5\src\dictionary.cpp:285:13: warning: unused variable 'sizeY' [-Wun
used-variable]
int sizeY=gridSize.height*MarkerSize+(gridSize.height-1)*MarkerDistance
;
^
C:\aruco-2.0.5\src\dictionary.cpp:286:13: warning: unused variable 'sizeX' [-Wun
used-variable]
int sizeX=gridSize.width*MarkerSize+(gridSize.width-1)*MarkerDistance;
^
C:\aruco-2.0.5\src\dictionary.cpp:312:37: warning: comparison between signed and
unsigned integer expressions [-Wsign-compare]
if (CurMarkerIdx>=ids.size()) throw cv::Exception(999," Fid
ucidalMarkers::createMarkerMapImage_ChessMarkerMap","INTERNAL ERROR. REWRITE THI
S!!",__FILE__,__LINE__);
^
C:\aruco-2.0.5\src\dictionary.cpp:300:13: warning: unused variable 'centerX' [-W
unused-variable]
int centerX=sizeX/2;
^
C:\aruco-2.0.5\src\dictionary.cpp:301:13: warning: unused variable 'centerY' [-W
unused-variable]
int centerY=sizeY/2;
^
C:\aruco-2.0.5\src\dictionary.cpp:303:14: warning: unused variable 'centerData'
[-Wunused-variable]
bool centerData=true;
^
[ 11%] Building CXX object src/CMakeFiles/aruco.dir/ippe.cpp.obj
C:\aruco-2.0.5\src\ippe.cpp: In function 'void IPPE::IPPComputeRotations(double,
double, double, double, double, double, cv::OutputArray, cv::OutputArray)':
C:\aruco-2.0.5\src\ippe.cpp:307:45: warning: variable 'ata10' set but not used [
-Wunused-but-set-variable]
double a00, a01, a10,a11, ata00, ata01, ata10,ata11,b00, b01, b10,b11,binv0
0, binv01, binv10,binv11;
^
C:\aruco-2.0.5\src\ippe.cpp:311:19: warning: variable 'a' set but not used [-Wun
used-but-set-variable]
double b0, b1,a,gamma,dtinv;
^
[ 13%] Building CXX object src/CMakeFiles/aruco.dir/marker.cpp.obj
C:\aruco-2.0.5\src\marker.cpp: In member function 'void aruco::Marker::rotateXAx
is(cv::Mat&)':
C:\aruco-2.0.5\src\marker.cpp:299:22: error: 'M_PI' was not declared in this sco
pe
float angleRad = M_PI / 2;
^
src\CMakeFiles\aruco.dir\build.make:187: recipe for target 'src/CMakeFiles/aruco
.dir/marker.cpp.obj' failed
mingw32-make[2]: *** [src/CMakeFiles/aruco.dir/marker.cpp.obj] Error 1
CMakeFiles\Makefile2:116: recipe for target 'src/CMakeFiles/aruco.dir/all' faile
d
mingw32-make[1]: *** [src/CMakeFiles/aruco.dir/all] Error 2
Makefile:126: recipe for target 'all' failed
mingw32-make: *** [all] Error 2
C:\aruco-2.0.5\build>mingw32-make
Scanning dependencies of target aruco
[ 2%] Building CXX object src/CMakeFiles/aruco.dir/marker.cpp.obj
C:\aruco-2.0.5\src\marker.cpp: In member function 'void aruco::Marker::rotateXAx
is(cv::Mat&)':
C:\aruco-2.0.5\src\marker.cpp:299:22: error: 'M_PI' was not declared in this sco
pe
float angleRad = M_PI / 2;
^
src\CMakeFiles\aruco.dir\build.make:187: recipe for target 'src/CMakeFiles/aruco
.dir/marker.cpp.obj' failed
mingw32-make[2]: *** [src/CMakeFiles/aruco.dir/marker.cpp.obj] Error 1
CMakeFiles\Makefile2:116: recipe for target 'src/CMakeFiles/aruco.dir/all' faile
d
mingw32-make[1]: *** [src/CMakeFiles/aruco.dir/all] Error 2
Makefile:126: recipe for target 'all' failed
mingw32-make: *** [all] Error 2
I have also tried to do it with codeblocks but I get the exact same error.
The developer has released a new version 2.0.7 fixing this issue.
What I have done to have aruco:
download the .zip on sourceforge
unzip it
create a build folder in aruco-2.0.7
open cmake-gui configure and generate
go into your build folder
open a cmd window from there
type mingw32-make
The library should have compiled properly.
If omp.h is missing from your compiler, find the source code on the internet and add it to mingw in MinGW\include. You should be ready to go. Don't forget to add aruco to your path & reboot.
If you are using an ide, you will have to add this library since it is an external library but it is another issue.
Finally, you might have some issues regarding c++11. I am working on it. If someone knows how to allow it on mingw (I haven't find any understandable explanation so far)
I'm having difficulty building a project in Windows 7 / Visual Studio 2010, and already spent longer than I would admit googling and fixing other errors to get to this point, but frustratingly I can't seem to get rid of the very last error. There is a linker error related to the _hypot function defined in math.h:
wxTheAppInitializer" (?wxTheAppInitializer##3VwxAppInitializer##A)
already defined in main.obj 1>libgsl.a(linalg_svd.o) : error LNK2019:
unresolved external symbol _hypot referenced in function
_gsl_linalg_SV_decomp 1>libgsl.a(matrix_oper.o) : error LNK2001: unresolved external symbol _hypot 1>libgsl.a(linalg_householder.o) :
error LNK2001: unresolved external symbol _hypot
: fatal error LNK1120: 1 unresolved externals
When I follow the advice of unresolved external symbol "_hypot" when using static library I get the following:
1> Generating Code... 1> main.obj : error LNK2005: _hypot already
defined in About.obj 1> fatal error LNK1169: one or more multiply
defined symbols found
Could anyone explain what is going on?
Create .c file with the following contents:
extern double fabs(double);
extern double sqrt(double);
double hypot(double x, double y) {
double ax = fabs(x), ay = fabs(y);
double xy = x/y, yx = y/x;
return ax > ay
? ax * sqrt(1.0 + yx*yx)
: ay * sqrt(1.0 + xy*xy);
}
do not include math.h