Use Kernel.system instead of `command`

1 files changed, 8 insertions, 8 deletions

diff --git a/ext/openbabel/extconf.rb b/ext/openbabel/extconf.rb
index e0dfbae..9e67b8f 100644
--- a/ext/openbabel/extconf.rb
+++ b/ext/openbabel/extconf.rb
@@ -15,27 +15,27 @@ begin
   Dir.chdir main_dir do
     FileUtils.rm_rf ob_main_dir
     puts "Downloading OpenBabel sources"
-    puts `curl -L -d use_mirror=netcologne "http://downloads.sourceforge.net/project/openbabel/openbabel/#{ob_num_ver}/openbabel-#{ob_num_ver}.tar.gz" | tar xz`
+    system "curl -L -d use_mirror=netcologne 'http://downloads.sourceforge.net/project/openbabel/openbabel/#{ob_num_ver}/openbabel-#{ob_num_ver}.tar.gz' | tar xz"
   end
   Dir.chdir ob_main_dir do
     puts "Configuring OpenBabel"
-    puts `cmake #{ob_main_dir} -DCMAKE_INSTALL_PREFIX=#{lib_dir}`
+    system "cmake #{ob_main_dir} -DCMAKE_INSTALL_PREFIX=#{lib_dir}"
     openbabel_libs = have_library('openbabel')
     unless openbabel_libs
       puts "OpenBabel not installed. Compiling sources."
-      puts `make`
-      puts `make install`
+      system "make"
+      system "make install"
     end
   end
   Dir.chdir ob_bindings_dir do
     puts "Compiling and instaling OpenBabel Ruby bindings."
-    `sed -i -e 's/Init_OpenBabel/Init_openbabel/g' *cpp`
+    system "sed -i -e 's/Init_OpenBabel/Init_openbabel/g' *cpp"
     # get include and lib from pkg-config
     ob_include=`pkg-config openbabel-2.0 --cflags-only-I`.sub(/\s+/,'').sub(/-I/,'')
     ob_lib=`pkg-config openbabel-2.0 --libs-only-L`.sub(/\s+/,'').sub(/-L/,'')
-    `ruby extconf.rb --with-openbabel-include=#{ob_include} --with-openbabel-lib=#{ob_lib}`
-    `sed -i -e 's/-flat_namespace//' Makefile`
-    puts `make`
+    system "ruby extconf.rb --with-openbabel-include=#{ob_include} --with-openbabel-lib=#{ob_lib}"
+    system "sed -i -e 's/-flat_namespace//' Makefile"
+    system "make"
   end
   FileUtils.cp(ob_bindings_dir+"/openbabel.#{RbConfig::CONFIG["DLEXT"]}", "./")
 	File.open('Makefile', 'w') do |makefile|