how to install ruby-compass on fedora 23 work station

how to install ruby-compass on fedora 23 work station

sympton:

[chfw@ gui]$ cat /home/chfw/.gem/ruby/extensions/x86-linux/ffi-1.9.10/gem_make.out
/usr/bin/ruby -r ./siteconf20160225-10482-1jrwbf5.rb extconf.rb
checking for ffi.h... *** 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.

Provided configuration options:
	--with-opt-dir
	--without-opt-dir
	--with-opt-include
	--without-opt-include=${opt-dir}/include
	--with-opt-lib
	--without-opt-lib=${opt-dir}/lib
	--with-make-prog
	--without-make-prog
	--srcdir=.
	--curdir
	--ruby=/usr/bin/$(RUBY_BASE_NAME)
	--with-ffi_c-dir
	--without-ffi_c-dir
	--with-ffi_c-include
	--without-ffi_c-include=${ffi_c-dir}/include
	--with-ffi_c-lib
	--without-ffi_c-lib=${ffi_c-dir}/lib
	--with-libffi-config
	--without-libffi-config
	--with-pkg-config
	--without-pkg-config
/usr/share/ruby/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
	from /usr/share/ruby/mkmf.rb:587:in `try_cpp'
	from /usr/share/ruby/mkmf.rb:1060:in `block in have_header'
	from /usr/share/ruby/mkmf.rb:911:in `block in checking_for'
	from /usr/share/ruby/mkmf.rb:351:in `block (2 levels) in postpone'
	from /usr/share/ruby/mkmf.rb:321:in `open'
	from /usr/share/ruby/mkmf.rb:351:in `block in postpone'
	from /usr/share/ruby/mkmf.rb:321:in `open'
	from /usr/share/ruby/mkmf.rb:347:in `postpone'
	from /usr/share/ruby/mkmf.rb:910:in `checking_for'
	from /usr/share/ruby/mkmf.rb:1059:in `have_header'
	from extconf.rb:16:in `<main>'

chfw@ gui]$ cat /home/chfw/.gem/ruby/extensions/x86-linux/ffi-1.9.10/mkmf.log
package configuration for libffi is not found
"gcc -o conftest -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I.  -D_FILE_OFFSET_BITS=64  -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -march=i686 -mtune=atom -fasynchronous-unwind-tables -fPIC conftest.c  -L. -L/usr/lib -L. -Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -fstack-protector -rdynamic -Wl,-export-dynamic  -m32   -lruby  -lpthread -ldl -lcrypt -lm   -lc"
gcc: error: /usr/lib/rpm/redhat/redhat-hardened-cc1: No such file or directory
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: int main(int argc, char **argv)
4: {
5:   return 0;
6: }
/* end */

Cure:

sudo dnf install redhat-rpm-config

Worked for me, BIG tyme!