Install FOX Dependencies for linux (aptitude)
sudo aptitude install zlib1g-dev libbz2-dev libpng12-dev libjpeg62-dev libtiff4-dev
sudo aptitude install libx11-dev libglu1-xorg-dev libxcursor-dev libxext-dev libxrandr-dev libxft2-dev
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