Add packages for CentOS 7.2, Fedora 25 and 27

packagecore.yaml

@@ -15,6 +15,19 @@ packages:
     deps:
       - ncurses
       - readline
+  centos7.2:
+    builddeps:
+      - make
+      - gcc
+      - pkgconfig
+      - ncurses-devel
+      - readline-devel
+    deps:
+      - ncurses
+      - readline
+    commands:
+      pre:
+        - yum install epel-release
   centos7.3:
     builddeps:
       - make
@@ -38,6 +51,16 @@ packages:
     deps:
       - libncursesw5
       - readline-common
+  fedora25:
+    builddeps:
+      - make
+      - gcc
+      - pkg-config
+      - ncurses-devel
+      - readline-devel
+    deps:
+      - ncurses
+      - readline
   fedora26:
     builddeps:
       - make
@@ -48,6 +71,16 @@ packages:
     deps:
       - ncurses
       - readline
+  fedora27:
+    builddeps:
+      - make
+      - gcc
+      - pkg-config
+      - ncurses-devel
+      - readline-devel
+    deps:
+      - ncurses
+      - readline
 #  opensuse42.3:
 #    builddeps:
 #      - make