{"id":381,"date":"2014-06-26T03:25:02","date_gmt":"2014-06-26T03:25:02","guid":{"rendered":"https:\/\/digitalchild.info\/?p=381"},"modified":"2014-06-26T03:25:02","modified_gmt":"2014-06-26T03:25:02","slug":"gems-when-using-ruby-via-software-collections","status":"publish","type":"post","link":"https:\/\/randomadult.local\/gems-when-using-ruby-via-software-collections\/","title":{"rendered":"Gems when using Ruby via Software Collections"},"content":{"rendered":"<p>In <a title=\"Centos 6.5 and Ruby 1.9.3 via Software Collections\" href=\"https:\/\/digitalchild.info\/centos-6-5-and-ruby1-9-3-via-software-collections\/\">my previous article<\/a> I outlined how to get Ruby installed via RedHat Software Collections (SCL) and this works for basic ruby commands until I tried to install my backup gem. I got an install error when trying to build the native extensions. This guide will show you how to install gems when using ruby via software collections.<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n[root@machine1 ~]# gem install backup\nBuilding native extensions.\u00a0 This could take a while...\nERROR:\u00a0 Error installing backup:\nERROR: Failed to build gem native extension.\n\u00a0 \u00a0 \u00a0 \u00a0 \/opt\/rh\/ruby193\/root\/usr\/bin\/ruby extconf.rb\nmkmf.rb can't find header files for ruby at \/opt\/rh\/ruby193\/root\/usr\/share\/include\/ruby.h\nGem files will remain installed in \/opt\/rh\/ruby193\/root\/usr\/local\/share\/gems\/gems\/atomic-1.1.14 for inspection.\nResults logged to \/opt\/rh\/ruby193\/root\/usr\/local\/share\/gems\/gems\/atomic-1.1.14\/ext\/gem_make.out\n<\/pre>\n<p>I will need to install the relevant development tools to get this working. When installing ruby using other methods some how-to&#8217;s tell you to do the blanket install of all development tools. I want to make sure I run as lean an OS image as possible. So I will only install the required packages by running the following:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\nsudo yum install gcc gcc-c++ make automake autoconf curl-devel openssl-devel zlib-devel httpd-devel apr-devel apr-util-devel sqlite-devel\u00a0ruby193-ruby-doc ruby193-ruby-devel ruby193-build\n<\/pre>\n<p>I now have everything I need to get gem to build the native extensions. So I run the command to install backup again and everything succeeds.<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\ngem install backup\n\n<\/pre>\n<p>The only problem I\u00a0have now is that when I try to run backup I get the following:<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n[root@machine1 ~]# backup\n-bash: backup: command not found\n<\/pre>\n<p class=\"p1\">This is because the gem was\u00a0installed inside of the software collections path so we will need to add this path to our existing path.<\/p>\n<pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\necho &quot;pathmunge \/opt\/rh\/ruby193\/root\/usr\/local\/bin&quot; | sudo tee -a \/etc\/profile.d\/ruby193.sh\n\n<\/pre>\n<p>This is\u00a0the same for any gems you install that need building. Once you&#8217;ve done the above <strong>gem install somegem<\/strong>\u00a0commands will work.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In my previous article I outlined how to get Ruby installed via RedHat Software Collections (SCL) and this works for basic ruby commands until I tried to install my backup gem. I got an install error when trying to build the native extensions. This guide will show you how to &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"ast-button\" href=\"https:\/\/randomadult.local\/gems-when-using-ruby-via-software-collections\/\"> <span class=\"screen-reader-text\">Gems when using Ruby via Software Collections<\/span> Read More \u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[5,9],"tags":[34,77,91,113,167,184],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.11 (Yoast SEO v20.11) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Gems when using Ruby via Software Collections<\/title>\n<meta name=\"description\" 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