Factored out external package dependencies in OPAM

Author: mmottl

sqlite3.opam

@@ -17,25 +17,11 @@ build: [
 ]
 
 depends: [
-  "conf-pkg-config" {build}
   "base" {build}
+  "conf-sqlite3" {build}
   "stdio" {build}
   "configurator" {build}
   "jbuilder" {build & >= "1.0+beta10"}
 ]
 
-depexts: [
-  [["debian"] ["libsqlite3-dev"]]
-  [["freebsd"] ["database/sqlite3"]]
-  [["openbsd"] ["database/sqlite3"]]
-  [["ubuntu"] ["libsqlite3-dev"]]
-  [["centos"] ["sqlite-devel"]]
-  [["rhel"] ["sqlite-devel"]]
-  [["fedora"] ["sqlite-devel"]]
-  [["alpine"] ["sqlite-dev"]]
-  [["opensuse"] ["sqlite3-devel"]]
-  [["osx" "homebrew"] ["sqlite3"]]
-  [["osx" "macports"] ["sqlite3"]]
-]
-
 available: [ ocaml-version >= "4.05" ]