Description of problem: ruby-devel contains the mkmf library which generates `./configure` scripts for building ruby C extensions. This `./configure` script happens to test gcc with the following command: gcc -o conftest -I/usr/include -I/usr/include/ruby/backward -I/usr/include -I. -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 -mtune=generic -fPIC conftest.c -L. -L/usr/lib64 -L. -Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -fstack-protector -rdynamic -Wl,-export-dynamic -m64 -lruby -lpthread -ldl -lcrypt -lm -lc This command will fail unless redhat-rpm-config is installed, which provides the required /usr/lib/rpm/redhat/redhat-hardened-cc1 file. Version-Release number of selected component (if applicable): 2.3.1-58.fc25 How reproducible: repeatable Steps to Reproduce: 1. Ensure redhat-rpm-config is not installed. 2. sudo dnf install rubygems ruby-devel 3. gem install unf_ext 4. sudo dnf install redhat-rpm-config 3. gem install unf_ext Actual results: FAIL then PASS Expected results: PASS and PASS Additional info:
*** This bug has been marked as a duplicate of bug 1284684 ***