I am working on facial landmarks and therefore I have installed dlib on my mac. When I try to execute a program in Xcode from learnopencv.com, the compiler says:
error "DLIB_NO_GUI_SUPPORT is defined so you can't use the GUI code. Turn DLIB_NO_GUI_SUPPORT off if you want to use it."
error "Also make sure you have libx11-dev installed on your system"
I already installed XQuartz. I don't know what to do anymore. Can anyone help me out here?
I suffered from this error for 3 days and finally fixed with:
xcode-select --install
Related
I am trying to install compass via terminal from Mac OS X 10.10, but I didn't do this, I saw many article that people have problem during the instal in this OS, anybody help me to install compass ? Below this comment will be the link from pastebin with the content for return command gem install compass.
http://pastebin.com/Uyn5K8W6
t looks like maybe your Mac doesn't have xcode command line tools installed. Try this in the terminal then try installing again:
xcode-select --install
You will also need to accept the license agreement. I think it asks you automatically now.
In case your development log states:
"You have to install development tools first."
Install xcode by running the following command:
`xcode-select --install`
I just updated to OS X Mavericks and it seems it messed up my whole compiler setup. Not only do I have to reinstall a JDK in order to use a Java compiler, I get the following error when I'm trying to compile C/C++ using GCC/G++:
/usr/local/Cellar/gcc/4.7.2/gcc/lib/gcc/x86_64-apple-darwin12.2.1/4.7.2/../../../../include/c++/4.7.2/cwchar:46:19: fatal error: wchar.h: No such file or directory
Not sure what to think other than upgrading messed it up. My question is: how do I set up g++ to compile on OS X? If it's already set up, what is the problem here?
If I can provide more information, please let me know.
Note: I've installed gcc 4.7 using homebrew, but it doesn't seem to work. When I use g++-4.7 code.cpp specifically, I get the same error.
Installing the Command Line Tools (OS X Mavericks) for Xcode - Late October 2013 solved it for me. Here is the link:
OSX: Xcode Downloads
The often mentioned xcode-select --install command kept saying it cannot find the requested software.
To clarify: You need to already have gcc-4.7 installed using Homebrew. The update to the latest version of CMD Tools only fixes compatibility issues caused by upgrading from Mountain Lion to Mavericks.
I'm trying to Compile Omnet++ 4.1 on Mountain Lion. When I type:
./configure
I get the following error:
configure: error: Cannot build Tcl/Tk apps, probably due to misconfigured or missing X11 headers or libs. Check config.log for more info!
I remember compiling it on Lion without any problems, any ideas how to get it working on Mountain Lion?
Found a solution for this over on the omnetpp google group, I'll paste it in here:
Hi all,
just tried Mountain Lion, which was released yesterday. Unfortunately,
the new MacOSX does not include X11 by default. I really HATE this
decision. As a result, it does not pass the Tcl/Tk checks when we do
./configure.
After hours of efforts, I finally figured out how to work around this:
download and install XQuartz at http://xquartz.macosforge.org/landing/
make a symbolic link at /usr/include: sudo ln -s /opt/X11/include/X11 /usr/include
and you are all set. In 2, you may also set some environment variables
accordingly instead of making the symbolic link.
Future OMNet++ releases may consider setting associated environment
variables so that the compiler looks for Xlib.h in
/opt/X11/include/X11 with Mountain Lion.
Just successfully compiled the simulator and haven't encountered other
problems yet.
Have fun,
TS
If you have the same problem on Linux (ubuntu) a solution is run this in the console:
sudo apt-get install build-essential gcc g++ bison flex perl tcl-dev tk-dev blt libxml2-dev zlib1g-dev openjdk-6-jre doxygen graphviz openmpi-bin libopenmpi-dev libpcap-dev
Installing XQuartz is still the solution to overcome this problem.
I've just found out, that my homebrew doesn't work anymore after I upgraded to OS X Lion.
$ brew install clojure
Warning: Xcode is not installed! Builds may fail!
Error: No such file or directory - /usr/bin/cc
and
$ brew doctor
We couldn't detect gcc 4.2.x. Some formulae require this compiler.
We couldn't detect gcc 4.0.x. Some formulae require this compiler.
You have no /usr/bin/cc. This will cause numerous build issues. Please
reinstall Xcode.
Setting DYLD_LIBRARY_PATH can break dynamic linking.
You should probably unset it.
after some googling, I found out that I should upgrade Xcode to version 4.1. The problem is, I have version 3.2.5 installed and I can't find any way of uninstalling it.
When I look at App Store, it looks like I don't have Xcode installed at all. I'm afraid that if I install it via App Store, it will somehow conflict with the version I have currently installed. However I can't find it in Applications, and I can't find any update function either.
Software Update doesn't prompt me to update Xcode, and I also don't see it in Installed Software.
What should I do?
Thanks to the readme found at /Developer, I found a way to uninstall Xcode via
$ sudo /Developer/Library/uninstall-devtools --mode=all
edit: I just ran the installer for Xcode 4, and it detected old version of Xcode, offering me to move it to /Developer-old.
I fixed it by
In theory this should work if you have Xcode4.3 installed (in /Applications):
$ sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer/
I'm getting this error when I try and install node on my new mac
error: could not configure a cxx compiler!
The error always occurs when I get to the ./configure part of the installation
I found this problem which applies to a linux build with the same error, but the solution does not seem to apply in my case:
How to compile/install node.js(could not configure a cxx compiler!) (Ubuntu).
I also took a look at the troubleshoot guide on the node wiki here:
https://github.com/joyent/node/wiki/Troubleshooting-Installation
and tried this solution:
export PATH=/Developer/usr/bin:$PATH
ISYSROOT="-isysroot /Developer/SDKs/MacOSX10.5.sdk"
export LINKFLAGS=$ISYSROOT CXXFLAGS=$ISYSROOT CFLAGS=$ISYSROOT
./configure --prefix=$HOME --without-ssl
make
But I get the same problem when I get to the ./configure step
Any advice, insights or help would be much appreciated here.
Thanks
When you install Mac OS X Developer Tools (XCode, etc) ensure you have the Unix Tools option checked. I had to remember to install Developer Tools/Unix tools when I set up my new MBP and it resolved this error for me.
Optionally, you could remove and try installing with Homebrew. However, it still has the same requirements (XCode/Dev Tools) so ensure that you have those installed.
Hope this helps.
I had this problem too, I resolved this in a different way, as far as I know xcode 4.3.1 doesnt come with an Install Xcode.app file from the appstore, if you are under this case, just run xcode, go to preferences -> downloads and click on the Install button for the command line tools option. I did just that and all the errors on the .configure and make commands were gone :)
I had the same problem on OSX 10.7 with Xcode 4.2. I was trying to build node v0.4.7. I kept getting "unable to configure a c compiler" error. What finally worked for me is installing the GCC compiler seperately. I found a nice package for that here:
https://github.com/kennethreitz/osx-gcc-installer/
configure is currently broken for some versions of MacOS; for more details, see How to compile Node.js v0.4.2 on MacOS 10.5.8. The working approach cited there is as follows:
export PATH=/Developer/usr/bin:$PATH
ISYSROOT="-isysroot /Developer/SDKs/MacOSX10.5.sdk"
export LINKFLAGS=$ISYSROOT CXXFLAGS=$ISYSROOT CFLAGS=$ISYSROOT
./configure --prefix=$HOME --without-ssl
make
This worked for me .
Al
After installing XCode 4.3.2 (in Mac OS X Lion) I still had the error.
Open XCode, Preferences, Downloads and installed Command Line Tools.
After it gets installed ./configure runs ok.