I'm new to cmake, and I'm only using it to install opencv on my ubuntu linux.
Here's the command I ran: cmake -DCMAKE_BUILD_TYPE=Release DCMAKE_INSTALL_PREFIX=/home/jinha/OCV/source
Then it returns the error:
FATAL: In-source builds are not allowed. You should create separate directory for build files.
My current directory, ~/OCV/build/opencv, does contain the CMakefiles.txt file, so that's not the problem. I tried to change the directory in my command, but they all raise the same error. I saw the other answers on this issue, so I erased CMakeFiles directory and CMakeCache.txt file every time before I ran the command, but none of them worked.
Thanks.
It wants you to create a separate build directory (anywhere), and run cmake there. For example:
mkdir my_build_dir
cd my_build_dir
rm ../CMakeCache.txt
cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/home/jinha/OCV/source
Note the .. in this example telling cmake where to look for the source.
In case you didn't remove CMakeCache.txt before building again, it will still show this error.
So, please remember to delete CMakeCache.txt first before running cmake.
After you have success downloaded and unzipped OpenCV sources from sources you need create simple command-file install.sh. For example, your working dir will be /home/user/myopencv
So /home/user/myopencv/install.sh will be contain next code:
#!/bin/bash
rm CMakeCache.txt
mkdir build
cd build
cmake .. -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=/usr/local
make
make install
make clean
Next
chmod 777 install.sh
./install.sh
And after the all you will get those executable files:
root#cartman:/usr/local/bin# ls -las | grep opencv
32 -rwxr-xr-x 1 root root 29888 апр 20 18:10 opencv_annotation
244 -rwxr-xr-x 1 root root 247608 апр 20 18:10 opencv_createsamples
244 -rwxr-xr-x 1 root root 247504 апр 20 18:10 opencv_haartraining
20 -rwxr-xr-x 1 root root 18600 апр 20 18:10 opencv_performance
288 -rwxr-xr-x 1 root root 294592 апр 20 18:10 opencv_traincascade
16 -rwxr-xr-x 1 root root 14288 апр 20 18:10 opencv_version
60 -rwxr-xr-x 1 root root 61040 апр 20 18:10 opencv_visualisation
Enjoy!
Related
I try to set up FastRTPS inside a docker container. I wrote a Dockerfile which builds FastRTPS and it's dependencies from source and installs the libraries and delivered examples. But the examples do not work:
/opt# /usr/local/examples/C++/HelloWorldExample/bin/HelloWorldExample
/usr/local/examples/C++/HelloWorldExample/bin/HelloWorldExample: error while loading shared libraries: libfastrtps.so.1: cannot open shared object file: No such file or directory
As these library was built in this container and automatically installed, it must be somewhere and they are here:
root#6e544f0699cf:/opt# ls -la /usr/local/lib/
total 9196
drwxr-xr-x 1 root root 4096 Mar 26 22:02 .
drwxr-xr-x 1 root root 4096 Mar 26 22:02 ..
drwxr-xr-x 3 root root 4096 Mar 26 22:00 cmake
drwxr-xr-x 3 root root 4096 Mar 26 22:00 foonathan_memory
lrwxrwxrwx 1 root root 15 Mar 26 22:00 libfastcdr.so -> libfastcdr.so.1
lrwxrwxrwx 1 root root 20 Mar 26 22:00 libfastcdr.so.1 -> libfastcdr.so.1.0.12
-rw-r--r-- 1 root root 99504 Mar 26 22:00 libfastcdr.so.1.0.12
lrwxrwxrwx 1 root root 16 Mar 26 22:02 libfastrtps.so -> libfastrtps.so.1
lrwxrwxrwx 1 root root 21 Mar 26 22:02 libfastrtps.so.1 -> libfastrtps.so.1.10.0
-rw-r--r-- 1 root root 8133952 Mar 26 22:01 libfastrtps.so.1.10.0
-rw-r--r-- 1 root root 1158048 Mar 26 22:00 libfoonathan_memory-0.6.2.a
drwxrwsr-x 3 root staff 4096 Mar 26 21:37 python3.7
It is also possible to look into this library # nm -D /usr/local/lib/libfastrtps.so.1.
But the output of ldconfig is a bit strange:
# ldconfig -v | grep /usr/local/lib
ldconfig: Can't stat /usr/local/lib/x86_64-linux-gnu: No such file or directory
ldconfig: Path `/lib/x86_64-linux-gnu' given more than once
ldconfig: Path `/usr/lib/x86_64-linux-gnu' given more than once
ldconfig: /lib/x86_64-linux-gnu/ld-2.28.so is the dynamic linker, ignoring
/usr/local/lib:
Here I expected the libraries listed but they are not.
How to fix that?
EDIT 1
some extractions from the make output while building FastRTPS:
...
-- Installing: /usr/local/lib/libfastrtps.so.1.10.0
-- Installing: /usr/local/lib/libfastrtps.so.1
-- Installing: /usr/local/lib/libfastrtps.so
...
-- Installing: /usr/local/examples/C++/HelloWorldExample/bin/HelloWorldExample
-- Set runtime path of "/usr/local/examples/C++/HelloWorldExample/bin/HelloWorldExample" to ""
Why the runtime path is set to "" - nothing?
The last edit led to the issue and also to the solution.
CMake removes the RPATH. In case of the usage within a docker container, this stripping makes no sense and can be turned off as described in this post by adding this argument to the CMake configuration call:
-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE
At the end my Dockerfile looks like this:
FROM fastrtps-core
WORKDIR /opt
RUN git clone https://github.com/eProsima/Fast-RTPS.git && \
export LDFLAGS="-Wl,--copy-dt-needed-entries" && \
mkdir build && \
cd build && \
cmake ../Fast-RTPS/examples \
-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=TRUE && \
cmake --build . --target install -j 16 && \
cd /opt && \
rm -rf build Fast-RTPS
Now the install-step output shows the correct runtime-path setting:
-- Installing: /usr/local/examples/C++/HelloWorldExample/HelloWorldExample
-- Set runtime path of "/usr/local/examples/C++/HelloWorldExample/HelloWorldExample" to "/usr/local/lib"
Aim is to run the file sendData.c with passing argument. But it shows file not found while it is already there. Let me know where it is going wrong.
root#OpenWrt:/tmp/sendData# ls -l
-rw-r--r-- 1 root root 75 Dec 19 07:02 Makefile
-rw-r--r-- 1 root root 5627 Dec 18 07:33 sendData.c
-rw-r--r-- 1 root root 13162 Dec 18 07:33 send_Data
-rw-r--r-- 1 root root 10744 Dec 20 07:46 send_Data_loop
root#OpenWrt:/tmp/sendData# ./sendData wlan0 E8:DE:27:C3:E6:07
-ash: ./sendData: not found
The file you want to use is called differently
# ./send_Data wlan0 E8:DE:27:C3:E6:07
I think you have a confusing naming scheme, because your .c file is named without and underscore
SOLVED
Did not execute the "make" for which the sendData file was not generated in the first place.
Firstly, make your file executable:
chmod +x <filename> and run command again.
I am very new to linux and am using putty and pscp to move files to a live hosted directory. I would like to rename my recently uploaded dist folder to its actual project name using mv but get a permission denied error. What is the safest and most reasonable way to arrange these files so I can rename them?
lawton#lawtonb:/var/www/html$ ls -la
total 268
drwxr-xr-x 4 root root 4096 Aug 30 16:42 .
drwxr-xr-x 3 root root 4096 Aug 18 23:05 ..
-rw-rw-r-- 1 lawton lawton 253276 Aug 27 18:06 bundle.js
drwxr-xr-x 2 root root 4096 Aug 30 16:42 dist
-rw-r--r-- 1 root root 17 Aug 18 23:24 info.php
drwxr-xr-x 2 root root 4096 Aug 27 18:59 react-youtube
lawton#lawtonb:/var/www/html$ mv dist BTC_Sorter
mv: cannot move 'dist' to 'BTC_Sorter': Permission denied
If this is a one-time rename, your best course of action would be to run mv with sudo, like this:
sudo mv dist BTC_Sorter
If, however, you'd like to have permissions for your user or group, you should do some reading about chown (The link belongs to the Arch Linux wiki, but should be useful regardless of your distro).
In your particular case, the directory dist is owned both by the user and the group root, hence why you'd need to use sudo, chown or simply the root account.
You are not the owner of the file, you need execute the command with sudo
sudo mv src dest
When I try to do a manual source install of some software on NixOS 15.09, I get (sh -x is to get an exec log):
[nix-shell:/tmp/nix-shell-es/EventStore-oss-v3.5.0-src]$ sh -x scripts/build-js1/build-js1-linux.sh werror=no
...
+ CXXFLAGS=-fPIC
+ make x64.release werror=no
PYTHONPATH="/tmp/nix-shell-es/EventStore-oss-v3.5.0-src/scripts/build-js1/v8/tools/generate_shim_headers:" \
GYP_GENERATORS=make \
build/gyp/gyp --generator-output="out" build/all.gyp \
-Ibuild/standalone.gypi --depth=. \
-Dv8_target_arch=x64 \
-Dv8_optimized_debug=0 \
-S.x64.release -Dv8_enable_backtrace=1 -Dwerror='' -Darm_fpu=default -Darm_float_abi=default
/bin/sh: build/gyp/gyp: /bin/bash: bad interpreter: No such file or directory
Makefile:389: recipe for target 'out/Makefile.x64.release' failed
make: *** [out/Makefile.x64.release] Error 126
And indeed there is no bash program in /bin/
[nix-shell:/tmp/nix-shell-es/EventStore-oss-v3.5.0-src]$ ls -la /bin/
total 12
drwxr-xr-x 2 root root 4096 Feb 24 12:25 .
drwxr-xr-x 18 root root 4096 Feb 24 12:16 ..
lrwxrwxrwx 1 root root 63 Feb 24 12:25 sh -> /nix/store/l80ddf18bbig2icv6cmgjfws9a2vm3jj-bash-4.3-p42/bin/sh
However when I inspect the script I dont see any mention of it so it must be some subprogram looking for it.
As an aside, I imagine that's probably why the script wisely starts with #!/usr/bin/env bash and not the direct location of bash.
Anyone knows a blessed way to deal with this ?
one has to run patchShebangs ./scripts/build-js1/build-js1-linux.sh on files coming from source when they are not in the store and we want to execute them.
I have read the Theos/Setup on the iPhoneDev Wiki.
I have installed Theos into /var/theos (private/var/theos) and have copied in the iPhone8.1.sdk into /var/theos/sdks/iPhone8.1.sdk:
iPhone:/var/theos/sdks root# ls -al
total 0
drwxr-xr-x 3 root admin 102 Nov 7 08:11 ./
drwxr-xr-x 9 root admin 374 Nov 7 07:58 ../
drwxrwxr-x 5 root admin 306 Nov 7 08:01 iPhoneOS8.1.sdk/
I have fixed the issues with perl/rsync not being compiled for arm64 by following the instructions
I created a tool:
$THEOS/bin/nic.pl
....
iPhone:~/Work/test root# ls
Makefile control main.mm theos#
However, when I make, I get the following error:
iPhone:~/Work/test root# make
/var/theos/makefiles/common.mk:116: *** The "iphone" target is not supported on the "iphone" platform. Stop.
What am I doing wrong? Or is this a problem with the 8.1 sdk?
Following the article at http://sharedroutine.com/?p=11 got it working for me.
I symlinked /var/theos/makefiles/platform/Darwin-arm to /var/theos/makefiles/platform/Darwin-arm64 and forgot to symlink /var/theos/makefiles/targets/Darwin-arm to /var/theos/makefiles/targets/Darwin-arm64.
ln -s /var/theos/makefiles/targets/Darwin-arm /var/theos/makefiles/targets/Darwin-arm64
ln -s /var/theos/makefiles/platform/Darwin-arm /var/theos/makefiles/platform/Darwin-arm64
Your paths may be different.