[PATCH 1/1] gnu: lua: Build with dynamic library support.

[Leo Famulari <leo@famulari.name>]

* gnu/packages/lua.scm (lua, lua-5.1)[arguments]: Set the make flags
  properly for each version of lua.
---
 gnu/packages/lua.scm | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/gnu/packages/lua.scm b/gnu/packages/lua.scm
index 87f53d1..7699a91 100644
--- a/gnu/packages/lua.scm
+++ b/gnu/packages/lua.scm
@@ -24,6 +24,7 @@
   #:use-module (guix packages)
   #:use-module (guix download)
   #:use-module (guix build-system gnu)
+  #:use-module (guix utils)
   #:use-module (gnu packages)
   #:use-module (gnu packages readline))
 
@@ -47,7 +48,7 @@
        #:test-target "test"
        #:phases (alist-replace
                  'build
-                 (lambda _ (zero? (system* "make" "CFLAGS=-fPIC" "linux")))
+                 (lambda _ (zero? (system* "make" "MYCFLAGS=-fPIC" "linux")))
                  (alist-replace
                   'install
                   (lambda* (#:key outputs #:allow-other-keys)
@@ -77,7 +78,23 @@ for configuration, scripting, and rapid prototyping.")
                                  version ".tar.gz"))
              (sha256
               (base32 "0cskd4w0g6rdm2q8q3i4n1h3j8kylhs3rq8mxwl9vwlmlxbgqh16"))
-             (patches (list (search-patch "lua51-liblua-so.patch")))))))
+             (patches (list (search-patch "lua51-liblua-so.patch")))))
+    (arguments
+      (substitute-keyword-arguments (package-arguments lua)
+        ((#:phases lua-phases)
+          `(modify-phases ,lua-phases
+             (replace
+               'build
+               (lambda _
+                 (and
+                  (zero? (system* "make" (string-append
+                                    "MYCFLAGS="
+                                    (string-join '("-fPIC "
+                                                   "-DLUA_USE_LINUX "
+                                                   "MYLIBS=-Wl,-E "
+                                                   "-ldl -lreadline "
+                                                   "-lhistory -lncurses")))
+                                    "linux")))))))))))
 
 (define-public luajit
   (package
@@ -89,8 +106,8 @@ for configuration, scripting, and rapid prototyping.")
                                   version ".tar.gz"))
               (sha256
                (base32 "0ydxpqkmsn2c341j4r2v6r5r0ig3kbwv3i9jran3iv81s6r6rgjm"))
-	      (patches (list (search-patch "luajit-symlinks.patch")
-			     (search-patch "luajit-no_ldconfig.patch")))))
+              (patches (list (search-patch "luajit-symlinks.patch")
+                             (search-patch "luajit-no_ldconfig.patch")))))
     (build-system gnu-build-system)
     (arguments
      '(#:tests? #f                      ;luajit is distributed without tests
-- 
2.6.1