Adapting the install script for arch linux cmake

script/discover_package_manager

@@ -47,6 +47,12 @@ function discover_package_manager() {
     if [ $? -eq 0 ]; then
       discover_package_manager_ret="zypper"
       return
+    fi
+
+    command -v pacman >/dev/null
+    if [ $? -eq 0 ]; then
+      discover_package_manager_ret="pacman"
+      return
     else
       discover_package_manager_ret=""
       return
@@ -54,4 +60,11 @@ function discover_package_manager() {
   fi
 }
 
-echo "$discover_package_manager_ret" 
+function pc_install_command() {
+  if [ x"$1" == x"pacman" ]; then
+    pc_install_command_ret="pacman -Sy"
+  else
+    pc_install_command_ret="$1 install"
+  fi
+}
+

script/solve_cmake

@@ -15,8 +15,9 @@ if [ x"$1" = x"osx" ]; then
         commands[0]="$pcman install cmake"
         possible_solutions "${commands[@]}"
 elif [ x"$1" = x"linux"  ]; then
-        commands[0]="su -c \"$pcman install cmake\""
-        commands[1]="sudo $pcman install cmake"
+	pc_install_command $pcman
+        commands[0]="su -c \"$pc_install_command_ret cmake\""
+        commands[1]="sudo $pc_install_command_ret cmake"
         possible_solutions "${commands[@]}"
 fi 
 }