From 58119427c89da0012ffec82e246c923a59088599 Mon Sep 17 00:00:00 2001
From: Jan Nieuwenhuizen <janneke@gnu.org>
Date: Tue, 12 Apr 2016 15:49:43 +0200
Subject: [PATCH 9/9] gnu: guile-2.0: support mingw.  WIP: builds, links,
 segfaults.

* gnu/packages/patches/guile-remove-utf8.patch: New file.
* gnu-system.am: Add it.
* gnu/packages/guile.scm (guile-2.0): Support mingw.
---
 gnu/packages/guile.scm                       | 60 +++++++++++++++++++++++++---
 gnu/packages/patches/guile-remove-utf8.patch | 16 ++++++++
 2 files changed, 71 insertions(+), 5 deletions(-)
 create mode 100644 gnu/packages/patches/guile-remove-utf8.patch

diff --git a/gnu/packages/guile.scm b/gnu/packages/guile.scm
index fe043cb..bfde659 100644
--- a/gnu/packages/guile.scm
+++ b/gnu/packages/guile.scm
@@ -30,6 +30,7 @@
   #:use-module (gnu packages libffi)
   #:use-module (gnu packages autotools)
   #:use-module (gnu packages flex)
+  #:use-module (gnu packages libiconv)
   #:use-module (gnu packages libunistring)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages m4)
@@ -132,13 +133,19 @@ without requiring the source code to be rewritten.")
             (sha256
              (base32
               "1qh3j7308qvsjgwf7h94yqgckpbgz2k3yqdkzsyhqcafvfka9l5f"))
-            (patches (list (search-patch "guile-arm-fixes.patch")))))
+            (patches (list (search-patch "guile-arm-fixes.patch")
+                           (search-patch "guile-remove-utf8.patch")))))
    (build-system gnu-build-system)
-   (native-inputs `(("pkgconfig" ,pkg-config)))
+   (native-inputs `(("pkgconfig" ,pkg-config)
+                    ,@(if (equal? (%current-target-system) "i686-w64-mingw32")
+                          `(("bash" ,bash)
+                            ("guile" ,guile-2.0))
+                          '())))
    (inputs `(("libffi" ,libffi)
              ("readline" ,readline)
-             ("bash" ,bash)))
-
+             ,@(if (equal? (%current-target-system) "i686-w64-mingw32")
+                    `(("libiconv" ,libiconv))
+                    `(("bash" ,bash)))))
    (propagated-inputs
     `( ;; These ones aren't normally needed here, but since `libguile-2.0.la'
        ;; reads `-lltdl -lunistring', adding them here will add the needed
@@ -167,7 +174,11 @@ without requiring the source code to be rewritten.")
                   (let ((bash (assoc-ref inputs "bash")))
                     (substitute* "module/ice-9/popen.scm"
                       (("/bin/sh")
-                       (string-append bash "/bin/bash")))))
+                       ,(if (equal? (%current-target-system) "i686-w64-mingw32")
+                            "cmd.exe"
+                            `(if bash
+                                 (string-append bash "/bin/bash")
+                                 "bash"))))))
                 %standard-phases)))
 
    (native-search-paths
@@ -194,6 +205,45 @@ without requiring the source code to be rewritten.")
   ;; in the `base' module, and thus changing it entails a full rebuild.
   guile-2.0)
 
+(define-public cross-guile
+  (package
+    (inherit guile-2.0)
+    (name "cross-guile")
+    (version "2.0.11")
+
+   (source (origin
+            (method url-fetch)
+            (uri (string-append "mirror://gnu/guile/guile-" version
+                                ".tar.xz"))
+            (sha256
+             (base32
+              "1qh3j7308qvsjgwf7h94yqgckpbgz2k3yqdkzsyhqcafvfka9l5f"))
+            (patches (list (search-patch "guile-arm-fixes.patch")
+                           (search-patch "guile-remove-utf8.patch")))))
+   
+    (self-native-input? #f)
+    (native-inputs `(("bash" ,bash)
+                     ("guile" ,guile-2.0)
+                     ("pkgconfig" ,pkg-config)))
+
+    (inputs `(("libffi" ,libffi)
+              ("readline" ,readline)
+              ,@(if (equal? (%current-target-system) "i686-w64-mingw32")
+                    `(("libiconv" ,libiconv))
+                    `(("bash" ,bash)))))
+    (arguments
+     `(#:phases (modify-phases %standard-phases
+                  (add-before 'configure  'pre-configure
+                    (lambda* (#:key inputs #:allow-other-keys)
+                      (let ((bash (assoc-ref inputs "bash")))
+                        (substitute* "module/ice-9/popen.scm"
+                          (("/bin/sh")
+                           ,(if (equal? (%current-target-system) "i686-w64-mingw32")
+                                "cmd.exe"
+                                (if bash
+                                    (string-append bash "/bin/bash")
+                                    "bash"))))))))))))
+
 (define-public guile-next
   (package (inherit guile-2.0)
     (name "guile-next")
diff --git a/gnu/packages/patches/guile-remove-utf8.patch b/gnu/packages/patches/guile-remove-utf8.patch
new file mode 100644
index 0000000..da195c0
--- /dev/null
+++ b/gnu/packages/patches/guile-remove-utf8.patch
@@ -0,0 +1,16 @@
+--- guile-2.0.11/libguile/Makefile.in.orig	2016-04-11 07:46:38.792593661 +0200
++++ guile-2.0.11/libguile/Makefile.in	2016-04-11 07:55:44.410618808 +0200
+@@ -3735,11 +3735,11 @@
+ 	flex -t $(srcdir)/c-tokenize.lex > $@ || { rm $@; false; }
+ 
+ # This page is for maintenance of the lists of CPP symbols that are eventually
+-# included in error.c (‘errno’ values: E*) and posix.c (signal names: SIG*),
++# included in error.c (`errno' values: E*) and posix.c (signal names: SIG*),
+ # in the funcs scm_init_{error,posix}, respectively.
+ #
+ # The lists (files cpp-{E,SIG}.syms) are not included verbatim, but processed
+-# (via pattern rule ‘.syms.c’ below) so that each CPP symbol is transformed to
++# (via pattern rule `.syms.c' below) so that each CPP symbol is transformed to
+ # fragment of #ifdef'd C code that defines a Scheme variable of the same name.
+ # The resulting files, cpp-{E,SIG}.c, are the ones #include:d.
+ #
-- 
2.7.3