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I installed "eclipse" and want to run "fxruby" on fedora "linux", but it does not work it. The error says :

cannot load such file -- fox16 (LoadError)

I installed this file with command

gem install fxruby

but fxruby not exist in gem list.

How can i fix it?

bt1397
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  • Does this help you? http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/278329 – howlger Nov 03 '18 at 10:28
  • Did you get errors when you ran `gem install fxruby`, and if so, what are they? – varro Nov 03 '18 at 17:12
  • thanks for answer , when i run it ,say :>WARNING: You don't have /home/B/bin in your PATH, gem executables will not run. Building native extensions. This could take a while... ERROR: Error installing fxruby: ERROR: Failed to build gem native extension. – bt1397 Nov 03 '18 at 20:56
  • current directory: /home/B/.gem/ruby/gems/fxruby-1.6.39/ext/fox16_c /usr/bin/ruby -r ./siteconf20181104-9921-l96zxe.rb extconf.rb checking for fox per pkg-config... *** extconf.rb failed *** Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. – bt1397 Nov 03 '18 at 21:07

2 Answers2

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The warning about the path you can safely ignore (at least for now). What the error is telling you is that you do not have the FOX development headers and libraries installed, so it couldn't build the fxruby gem. So you must install the fox development package - it may be named something like "fox16" or "fox16-devel", or something else depending on what version of Linux you're running. (If all else fails, you can build it yourself).

After that, compiling fxruby (using gem install fxruby) should work.

If you do want to build FOX yourself, here are (approximately) the steps:

1) Go to the FOX website http://www.fox-toolkit.org/ , and download the latest 1.6 (stable) version (at the moment, fox-1.6.57.tar.gz).

2) I would create a directory ~/src, then cd ~/src, and unpack the downloaded package, e.g., tar xvf ~/Downloads/fox-1.6.57.tar.gz (adjust the path according to wherever you have actually downloaded the package).

2) You should now have a subdirectory fox-1.6.57 (i.e., ~/src/fox-1.6.57/). Cd to it, and read top-level documentation in README and INSTALL.

3) Run the configure script, ./configure or ./configure --prefix=$HOME. The difference between these invocations is that if you run a plain ./configure, the software will be installed under the default location /usr/local (this will require root access when installed), whereas the invocation ./configure --prefix=$HOME will result in the software being installed under $HOME. The latter will not require root access to install and probably is better if you're just installing the software for your own use.

4) I you are installing under your own home directory, create appropriate subdirectories: cd ~; mkdir bin include lib'. (The installation may take care of this, but it doesn't hurt to pre-create the directories.)

5) Now run make. That should compile and build the FOX libraries under the local directory (~/src/fox-1.6.57/)

6) Run make install. That will install the libraries under either the default location of /usr/local or your home directory ~ (depending on your configure option)

7) A this point, you should have the FOX libraries and headers installed. Now try gem install fxruby. (If you're going for a local install, probably gem install fxruby --user-install.)

varro
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solved for fedora

i installed all of them :

ruby-devel.x86_64

fox-devel.x86_64

sudo dnf install redhat-rpm-config

yum groupinstall 'Development Tools'

yum group info 'Development Tools' yum -y install gcc ruby-devel

rubygems compass

gcc compt gcc-c++-x86_64-linux-gnu.x86_64

gcc-c++

[
gcc-c++-8.2.1-4.fc28.x86_64 C++ support for GCC libstdc++-devel-8.2.1-4.fc28.x86_64 Header files and libraries for C++ development

]

sudo dnf install libpng12-devel.x86_64

sudo dnf install libb2-devel.x86_64

sudo dnf install libX11-devel

sudo dnf install libXcursor-devel.x86_64

sudo dnf install libXext-devel.x86_64 libXrandr-devel.x86_64

gem install fxruby

bt1397
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