gnu: base: Add glibc-hurd and hurd-minimal.

* gnu/packages/base.scm (glibc/hurd, glibc/hurd-headers): New variables.
* gnu/packages/hurd.scm (hurd-minimal): New variable.
* gnu/packages/patches/glibc-hurd-extern-inline.patch: New file.
* gnu/packages/patches/libpthread-glibc-preparation.patch: New file.
* gnu-system.am (dist_patch_DATA): Add them.

Co-authored-by: Ludovic Courtès <ludo@gnu.org>
Co-authored-by: Mark H Weaver <mhw@netris.org>

gnu-system.am

@@ -552,6 +552,7 @@ dist_patch_DATA =						\
   gnu/packages/patches/libwmf-CVE-2009-1364.patch		\
   gnu/packages/patches/libwmf-CVE-2015-0848+4588+4695+4696.patch \
   gnu/packages/patches/lirc-localstatedir.patch			\
+  gnu/packages/patches/libpthread-glibc-preparation.patch	\
   gnu/packages/patches/lm-sensors-hwmon-attrs.patch		\
   gnu/packages/patches/lua-pkgconfig.patch                      \
   gnu/packages/patches/lua51-liblua-so.patch                    \

gnu/packages/base.scm

@@ -4,6 +4,7 @@
 ;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
 ;;; Copyright © 2014, 2015 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2014 Alex Kost <alezost@gmail.com>
+;;; Copyright © 2014, 2015 Manolis Fragkiskos Ragkousis <manolis837@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -33,11 +34,13 @@
   #:use-module (gnu packages perl)
   #:use-module (gnu packages linux)
   #:use-module (gnu packages texinfo)
+  #:use-module (gnu packages hurd)
   #:use-module (gnu packages pkg-config)
   #:use-module (gnu packages gettext)
   #:use-module (guix utils)
   #:use-module (guix packages)
   #:use-module (guix download)
+  #:use-module (guix git-download)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system trivial))
 
@@ -706,6 +709,113 @@ variety of options.  It is an alternative to the shell \"type\" built-in
 command.")
     (license gpl3+))) ; some files are under GPLv2+
 
+(define-public glibc/hurd
+  ;; The Hurd's libc variant.
+  (package (inherit glibc)
+    (name "glibc-hurd")
+    (version "2.18")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "git://git.sv.gnu.org/hurd/glibc")
+                    (commit "cc94b3cfe65523f980359e5f0e93a26196bda1d3")))
+              (sha256
+               (base32
+                "17gsh0kaz0zyvghjmx861mi2p65m9901lngi179x61zm6v2v3xc4"))
+              (file-name (string-append name "-" version))
+              (patches (map search-patch
+                            '("glibc-hurd-extern-inline.patch")))))
+
+    ;; Libc provides <hurd.h>, which includes a bunch of Hurd and Mach headers,
+    ;; so both should be propagated.
+    (propagated-inputs `(("gnumach-headers" ,gnumach-headers)
+                         ("hurd-headers" ,hurd-headers)
+                         ("hurd-minimal" ,hurd-minimal)))
+    (native-inputs
+     `(,@(package-native-inputs glibc)
+       ("patch/libpthread-patch" ,(search-patch "libpthread-glibc-preparation.patch"))
+       ("mig" ,mig)
+       ("perl" ,perl)
+       ("libpthread" ,(origin
+                        (method git-fetch)
+                        (uri (git-reference
+                              (url "git://git.sv.gnu.org/hurd/libpthread")
+                              (commit "0ef7b75c4ba91b6660f0d3d8b51d14d25e3d5bfb")))
+                        (sha256
+                         (base32
+                          "031py18fls15z0wprni33mf762kg6fx8xqijppimhp83yp6ky3l3"))
+                        (file-name "libpthread")))))
+
+    (arguments
+     (substitute-keyword-arguments (package-arguments glibc)
+       ((#:configure-flags original-configure-flags)
+        `(append (list "--host=i686-pc-gnu"
+
+                       ;; nscd fails to build for GNU/Hurd:
+                       ;; <https://lists.gnu.org/archive/html/bug-hurd/2014-07/msg00006.html>.
+                       ;; Disable it.
+                       "--disable-nscd")
+                 (filter (lambda (flag)
+                           (not (or (string-prefix? "--with-headers=" flag)
+                                    (string-prefix? "--enable-kernel=" flag))))
+                         ;; Evaluate 'original-configure-flags' in a
+                         ;; lexical environment that has a dummy
+                         ;; "linux-headers" input, to prevent errors.
+                         (let ((%build-inputs `(("linux-headers" . "@DUMMY@")
+                                                ,@%build-inputs)))
+                           ,original-configure-flags))))
+       ((#:phases phases)
+        `(alist-cons-after
+          'unpack 'prepare-libpthread
+          (lambda* (#:key inputs #:allow-other-keys)
+            (copy-recursively (assoc-ref inputs "libpthread") "libpthread")
+
+            (system* "patch" "--force" "-p1" "-i"
+                     (assoc-ref inputs "patch/libpthread-patch"))
+            #t)
+          ,phases))))
+    (synopsis "The GNU C Library (GNU Hurd variant)")
+    (supported-systems %hurd-systems)))
+
+(define-public glibc/hurd-headers
+  (package (inherit glibc/hurd)
+    (name "glibc-hurd-headers")
+    (outputs '("out"))
+    (propagated-inputs `(("gnumach-headers" ,gnumach-headers)
+                         ("hurd-headers" ,hurd-headers)))
+    (arguments
+     (substitute-keyword-arguments (package-arguments glibc/hurd)
+       ;; We just pass the flags really needed to build the headers.
+       ((#:configure-flags _)
+        `(list "--enable-add-ons"
+               "--host=i686-pc-gnu"
+               "--enable-obsolete-rpc"))
+       ((#:phases _)
+        '(alist-replace
+          'install
+          (lambda* (#:key outputs #:allow-other-keys)
+            (and (zero? (system* "make" "install-headers"))
+
+                 ;; Make an empty stubs.h to work around not being able to
+                 ;; produce a valid stubs.h and causing the build to fail. See
+                 ;; <http://lists.gnu.org/archive/html/guix-devel/2014-04/msg00233.html>.
+                 (let ((out (assoc-ref outputs "out")))
+                   (close-port
+                    (open-output-file
+                     (string-append out "/include/gnu/stubs.h"))))))
+
+          ;; Nothing to build.
+          (alist-delete
+           'build
+
+           (alist-cons-before
+            'configure 'pre-configure
+            (lambda _
+              ;; Use the right 'pwd'.
+              (substitute* "configure"
+                (("/bin/pwd") "pwd")))
+            %standard-phases))))))))
+
 (define-public tzdata
   (package
     (name "tzdata")

gnu/packages/hurd.scm

@@ -20,11 +20,14 @@
   #:use-module (guix licenses)
   #:use-module (guix download)
   #:use-module (guix packages)
+  #:use-module (gnu packages)
   #:use-module (guix build-system gnu)
   #:use-module (gnu packages flex)
   #:use-module (gnu packages bison)
   #:use-module (gnu packages perl)
-  #:use-module (gnu packages autotools))
+  #:use-module (gnu packages autotools)
+  #:use-module (gnu packages base)
+  #:use-module (guix git-download))
 
 (define-public gnumach-headers
   (package
@@ -130,3 +133,55 @@ communication.")
      "This package provides C headers of the GNU Hurd, used to build the GNU C
 Library and other user programs.")
     (license gpl2+)))
+
+(define-public hurd-minimal
+  (package (inherit hurd-headers)
+    (name "hurd-minimal")
+    (inputs `(("glibc-hurd-headers" ,glibc/hurd-headers)))
+    (native-inputs
+     `(("autoconf" ,(autoconf-wrapper))
+       ("mig" ,mig)))
+
+    (arguments
+     `(#:phases (alist-replace
+                 'install
+                 (lambda* (#:key outputs #:allow-other-keys)
+                   (let ((out (assoc-ref outputs "out")))
+                     ;; We need to copy libihash.a to the output directory manually,
+                     ;; since there is no target for that in the makefile.
+                     (mkdir-p (string-append out "/include"))
+                     (copy-file "libihash/ihash.h"
+                                (string-append out "/include/ihash.h"))
+                     (mkdir-p (string-append out "/lib"))
+                     (copy-file "libihash/libihash.a"
+                                (string-append out "/lib/libihash.a"))
+                     #t))
+                 (alist-replace
+                  'build
+                  (lambda _
+                    (zero? (system* "make" "-Clibihash" "libihash.a")))
+                  (alist-cons-before
+                   'configure 'bootstrap
+                   (lambda _
+                     (zero? (system* "autoreconf" "-vfi")))
+                   %standard-phases)))
+       #:configure-flags '(;; Pretend we're on GNU/Hurd; 'configure' wants
+                           ;; that.
+                           "--host=i686-pc-gnu"
+
+                           ;; Reduce set of dependencies.
+                           "--disable-ncursesw"
+                           "--disable-test"
+                           "--without-libbz2"
+                           "--without-libz"
+                           "--without-parted"
+                           ;; Skip the clnt_create check because it expects
+                           ;; a working glibc causing a circular dependency.
+                           "ac_cv_search_clnt_create=no")
+       #:tests? #f))
+    (home-page "http://www.gnu.org/software/hurd/hurd.html")
+    (synopsis "GNU Hurd libraries")
+    (description
+     "This package provides libihash, needed to build the GNU C 
+Library for GNU/Hurd.")
+    (license gpl2+)))

gnu/packages/patches/glibc-hurd-extern-inline.patch

@@ -0,0 +1,35 @@
+This changes the way _EXTERN_INLINE is defined so we can
+avoid external definition errors.
+https://lists.gnu.org/archive/html/bug-hurd/2014-04/msg00002.html
+
+diff --git a/signal/sigsetops.c b/signal/sigsetops.c
+index 0317662..b92c296 100644
+--- a/signal/sigsetops.c
++++ b/signal/sigsetops.c
+@@ -3,7 +3,9 @@
+ 
+ #include <features.h>
+ 
+-#define _EXTERN_INLINE
++#ifndef _EXTERN_INLINE
++#define _EXTERN_INLINE __extern_inline
++#endif
+ #ifndef __USE_EXTERN_INLINES
+ # define __USE_EXTERN_INLINES  1
+ #endif
+
+Link libmachuser and libhurduser automatically with libc, since they are
+considered a standard part of the API in GNU-land.
+
+--- a/Makerules
++++ b/Makerules
+@@ -978,6 +978,9 @@
+ 	      '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
+	      ' AS_NEEDED (' $(rtlddir)/$(rtld-installed-name) ') )' \
+ 	) > $@.new
++ifeq ($(patsubst gnu%,,$(config-os)),)
++	echo 'INPUT ( AS_NEEDED ( -lmachuser -lhurduser ) )' >> $@.new
++endif
+ 	mv -f $@.new $@
+ 
+ endif

gnu/packages/patches/libpthread-glibc-preparation.patch

@@ -0,0 +1,146 @@
+This patch helps to integrate the Hurd's libpthread as a libc add-on.
+
+It writes the configure file, removes an rpc call not yet 
+implemented on the version of gnumach we use and defines
+a missing macro.
+
+diff --git a/libpthread/configure b/libpthread/configure
+new file mode 100644
+index 0000000..2cdbc71
+--- /dev/null
++++ b/libpthread/configure
+@@ -0,0 +1,2 @@
++libc_add_on_canonical=libpthread
++libc_add_on_subdirs=.
+-- 
+1.9.0
+
+We are using a version of GNU Mach that lacks 'thread_terminate_release'
+(not introduced yet).  The 'thread_terminate' RPC call will be enough for
+our needs.
+See <http://lists.gnu.org/archive/html/bug-hurd/2014-05/msg00127.html>.
+
+diff --git a/libpthread/sysdeps/mach/pt-thread-terminate.c b/libpthread/sysdeps/mach/pt-thread-terminate.c
+index 6672065..129a611 100644
+--- a/libpthread/sysdeps/mach/pt-thread-terminate.c
++++ b/libpthread/sysdeps/mach/pt-thread-terminate.c
+@@ -70,9 +70,9 @@ __pthread_thread_terminate (struct __pthread *thread)
+   __mach_port_destroy (__mach_task_self (), wakeup_port);
+ 
+   /* Terminate and release all that's left.  */
+-  err = __thread_terminate_release (kernel_thread, mach_task_self (),
+-				    kernel_thread, reply_port,
+-				    stackaddr, stacksize);
++  /* err = __thread_terminate_release (kernel_thread, mach_task_self (), */
++  /* 				    kernel_thread, reply_port, */
++  /* 				    stackaddr, stacksize); */
+ 
+   /* The kernel does not support it yet.  Leak but at least terminate
+      correctly.  */
+-- 
+1.9.2
+
+The __PTHREAD_SPIN_LOCK_INITIALIZER definition is missing, so we 
+define it to __SPIN_LOCK_INITIALIZER which already exists.
+See <http://lists.gnu.org/archive/html/commit-hurd/2009-04/msg00006.html>.
+  
+diff --git a/libpthread/sysdeps/mach/bits/spin-lock.h b/libpthread/sysdeps/mach/bits/spin-lock.h
+index 537dac9..fca0e5a 100644
+--- a/libpthread/sysdeps/mach/bits/spin-lock.h
++++ b/libpthread/sysdeps/mach/bits/spin-lock.h
+@@ -30,7 +30,7 @@ typedef __spin_lock_t __pthread_spinlock_t;
+ 
+ /* Initializer for a spin lock object.  */
+ #ifndef __PTHREAD_SPIN_LOCK_INITIALIZER
+-#error __PTHREAD_SPIN_LOCK_INITIALIZER undefined: should be defined by <lock-intern.h>.
++#define __PTHREAD_SPIN_LOCK_INITIALIZER __SPIN_LOCK_INITIALIZER
+ #endif
+ 
+ __END_DECLS
+
+The version of the glibc we use doesn't include the shm-directory.c file and does
+not yet support IS_IN.
+See <https://lists.gnu.org/archive/html/bug-hurd/2015-03/msg00078.html>
+
+diff --git a/libpthread/Makefile b/libpthread/Makefile
+index 2906788..b8dee58 100644
+--- a/libpthread/Makefile
++++ b/libpthread/Makefile
+@@ -149,8 +149,6 @@ libpthread-routines := pt-attr pt-attr-destroy pt-attr-getdetachstate	    \
+ 	sem-post sem-timedwait sem-trywait sem-unlink			    \
+ 	sem-wait							    \
+ 									    \
+-	shm-directory							    \
+-									    \
+ 	cthreads-compat							    \
+ 	$(SYSDEPS)
+ 
+-- 
+2.3.6
+
+diff --git a/libpthread/pthread/pt-create.c b/libpthread/pthread/pt-create.c
+index d88afae..84044dc 100644
+--- a/libpthread/pthread/pt-create.c
++++ b/libpthread/pthread/pt-create.c
+@@ -28,7 +28,7 @@
+ 
+ #include <pt-internal.h>
+ 
+-#if IS_IN (libpthread)
++#ifdef IS_IN_libpthread
+ # include <ctype.h>
+ #endif
+ #ifdef HAVE_USELOCALE
+@@ -50,7 +50,7 @@ entry_point (struct __pthread *self, void *(*start_routine)(void *), void *arg)
+   __resp = &self->res_state;
+ #endif
+ 
+-#if IS_IN (libpthread)
++#ifdef IS_IN_libpthread
+   /* Initialize pointers to locale data.  */
+   __ctype_init ();
+ #endif
+diff --git a/libpthread/pthread/pt-initialize.c b/libpthread/pthread/pt-initialize.c
+index 9e5404b..b9cacbd 100644
+--- a/libpthread/pthread/pt-initialize.c
++++ b/libpthread/pthread/pt-initialize.c
+@@ -28,7 +28,7 @@
+ 
+ DEFINE_HOOK (__pthread_init, (void));
+ 
+-#if IS_IN (libpthread)
++#ifdef IS_IN_libpthread
+ static const struct pthread_functions pthread_functions =
+   {
+     .ptr_pthread_attr_destroy = __pthread_attr_destroy,
+@@ -81,7 +81,7 @@ static const struct pthread_functions pthread_functions =
+ void
+ ___pthread_init (void)
+ {
+-#if IS_IN (libpthread)
++#ifdef IS_IN_libpthread
+   __libc_pthread_init(&pthread_functions);
+ #endif
+   RUN_HOOK (__pthread_init, ());
+diff --git a/libpthread/pthread/pt-internal.h b/libpthread/pthread/pt-internal.h
+index 18b5b4c..8cdcfce 100644
+--- a/libpthread/pthread/pt-internal.h
++++ b/libpthread/pthread/pt-internal.h
+@@ -35,7 +35,7 @@
+ #include <pt-sysdep.h>
+ #include <pt-machdep.h>
+ 
+-#if IS_IN (libpthread)
++#ifdef IS_IN_libpthread
+ # include <ldsodefs.h>
+ #endif
+ 
+@@ -60,7 +60,7 @@ enum pthread_state
+ # define PTHREAD_SYSDEP_MEMBERS
+ #endif
+ 
+-#if !(IS_IN (libpthread))
++#ifndef IS_IN_libpthread
+ #ifdef ENABLE_TLS
+ /* Type of the TCB.  */
+ typedef struct