gnu: bootstrap: gcc-static: Use gcc-5.

* gnu/packages/make-bootstrap.scm (gcc-static): Use gcc-5.  This fixes
building libstdc++-boot0 with a newly built %bootstrap-gcc.
(%gcc-stripped): Likewise.
(gcc-for-bootstrap): Likewise.
* gnu/packages/patches/gcc-5-hurd.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/gcc.scm (gcc-5): Use it.

gnu/local.mk

@@ -909,6 +909,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/gcc-4-compile-with-gcc-5.patch		 \
   %D%/packages/patches/gcc-4.6-gnu-inline.patch			\
   %D%/packages/patches/gcc-4.9.3-mingw-gthr-default.patch	\
+  %D%/packages/patches/gcc-5-hurd.patch				\
   %D%/packages/patches/gcc-5.0-libvtv-runpath.patch		\
   %D%/packages/patches/gcc-5-source-date-epoch-1.patch		\
   %D%/packages/patches/gcc-5-source-date-epoch-2.patch		\

gnu/packages/gcc.scm

@@ -471,7 +471,8 @@ Go.  It also includes runtime support libraries for these languages.")
                                        "gcc-5-source-date-epoch-1.patch"
                                        "gcc-5-source-date-epoch-2.patch"
                                        "gcc-6-libsanitizer-mode-size.patch"
-                                       "gcc-fix-texi2pod.patch"))
+                                       "gcc-fix-texi2pod.patch"
+                                       "gcc-5-hurd.patch"))
               (modules '((guix build utils)))
               (snippet
                ;; Fix 'libcc1/configure' error when cross-compiling GCC.

gnu/packages/make-bootstrap.scm

@@ -93,13 +93,13 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
   (mlambdaq (glibc)
     "Return a variant of GCC that uses the bootstrap variant of GLIBC."
     (package
-      (inherit gcc)
+      (inherit gcc-5)
       (outputs '("out")) ;all in one so libgcc_s is easily found
       (inputs
        `( ;; Distinguish the name so we can refer to it below.
          ("bootstrap-libc" ,(glibc-for-bootstrap glibc))
          ("libc:static" ,(glibc-for-bootstrap glibc) "static")
-         ,@(package-inputs gcc))))))
+         ,@(package-inputs gcc-5))))))
 
 (define (package-with-relocatable-glibc p)
   "Return a variant of P that uses the libc as defined by
@@ -138,7 +138,7 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
                              (cons (search-path-specification
                                     (variable "CROSS_CPLUS_INCLUDE_PATH")
                                     (files '("include")))
-                                   (package-search-paths gcc)))))
+                                   (package-search-paths gcc-5)))))
             ("cross-binutils" ,(cross-binutils target))
             ,@(%final-inputs)))
         `(("libc" ,(glibc-for-bootstrap glibc))
@@ -459,7 +459,7 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
 (define %gcc-static
   ;; A statically-linked GCC, with stripped-down functionality.
   (package-with-relocatable-glibc
-   (package (inherit gcc)
+   (package (inherit gcc-5)
      (name "gcc-static")
      (outputs '("out"))                           ; all in one
      (arguments
@@ -468,7 +468,7 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
                    (srfi srfi-1)
                    (srfi srfi-26)
                    (ice-9 regex))
-        ,@(substitute-keyword-arguments (package-arguments gcc)
+        ,@(substitute-keyword-arguments (package-arguments gcc-5)
             ((#:guile _) #f)
             ((#:implicit-inputs? _) #t)
             ((#:configure-flags flags)
@@ -513,8 +513,8 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
                     #t)))))))
      (inputs
       `(("zlib:static" ,zlib "static")
-        ("isl:static" ,isl "static")
+        ("isl:static" ,isl-0.18 "static")
-        ,@(package-inputs gcc)))
+        ,@(package-inputs gcc-5)))
      (native-inputs
       (if (%current-target-system)
           `(;; When doing a Canadian cross, we need GMP/MPFR/MPC both
@@ -527,12 +527,12 @@ for `sh' in $PATH, and without nscd, and with static NSS modules."
             ("gmp-native" ,gmp)
             ("mpfr-native" ,mpfr)
             ("mpc-native" ,mpc)
-            ,@(package-native-inputs gcc))
+            ,@(package-native-inputs gcc-5))
-          (package-native-inputs gcc))))))
+          (package-native-inputs gcc-5))))))
 
 (define %gcc-stripped
   ;; The subset of GCC files needed for bootstrap.
-  (package (inherit gcc)
+  (package (inherit gcc-5)
     (name "gcc-stripped")
     (build-system trivial-build-system)
     (source #f)

gnu/packages/patches/gcc-5-hurd.patch

@@ -0,0 +1,63 @@
+This patch is needed to build gcc-5.5.0 on the Hurd.
+
+Backported from upstream: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=6cd9cb89ebdc1e1394b81c4a418c2b3b0eb86c57
+
+commit b590b96ebc3f5b42a4829170e069722dd940e2543
+Author: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
+Date:   Sat May 9 04:50:23 2015 +0000
+
+            * src/c++98/Makefile.am (AM_CXXFLAGS): Add -std=gnu++98.
+            * src/c++98/Makefile.in: Regenerate.
+            * src/Makefile.am (AM_CXXFLAGS): Add -std=gnu++98.
+            * src/Makefile.in: Regenerate.
+    
+    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222964 138bc75d-0d04-0410-961f-82ee72b054a4
+
+diff --git a/libstdc++-v3/src/Makefile.am b/libstdc++-v3/src/Makefile.am
+index a5f48b22c6d..cd07ccd81bc 100644
+--- a/libstdc++-v3/src/Makefile.am
++++ b/libstdc++-v3/src/Makefile.am
+@@ -168,6 +168,7 @@ compatibility-condvar.o: compatibility-condvar.cc
+ # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
+ # as the occasion calls for it.
+ AM_CXXFLAGS = \
++	-std=gnu++98 \
+ 	$(glibcxx_compiler_pic_flag) \
+ 	$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
+ 	$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
+diff --git a/libstdc++-v3/src/Makefile.in b/libstdc++-v3/src/Makefile.in
+index 433f9ea121a..31b56282e26 100644
+--- a/libstdc++-v3/src/Makefile.in
++++ b/libstdc++-v3/src/Makefile.in
+@@ -429,6 +429,7 @@ libstdc___la_LINK = $(CXXLINK) $(libstdc___la_LDFLAGS)
+ # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
+ # as the occasion calls for it.
+ AM_CXXFLAGS = \
++	-std=gnu++98 \
+ 	$(glibcxx_compiler_pic_flag) \
+ 	$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
+ 	$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
+diff --git a/libstdc++-v3/src/c++98/Makefile.am b/libstdc++-v3/src/c++98/Makefile.am
+index e348dfb1205..a5b68a19a8b 100644
+--- a/libstdc++-v3/src/c++98/Makefile.am
++++ b/libstdc++-v3/src/c++98/Makefile.am
+@@ -215,6 +215,7 @@ parallel_settings.o: parallel_settings.cc
+ # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
+ # as the occasion calls for it.
+ AM_CXXFLAGS = \
++	-std=gnu++98 \
+ 	$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
+ 	$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
+ 	$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)
+diff --git a/libstdc++-v3/src/c++98/Makefile.in b/libstdc++-v3/src/c++98/Makefile.in
+index 3c69791bb66..ce86136906b 100644
+--- a/libstdc++-v3/src/c++98/Makefile.in
++++ b/libstdc++-v3/src/c++98/Makefile.in
+@@ -421,6 +421,7 @@ PARALLEL_FLAGS = -D_GLIBCXX_PARALLEL
+ # OPTIMIZE_CXXFLAGS on the compile line so that -O2 can be overridden
+ # as the occasion calls for it.
+ AM_CXXFLAGS = \
++	-std=gnu++98 \
+ 	$(glibcxx_lt_pic_flag) $(glibcxx_compiler_shared_flag) \
+ 	$(XTEMPLATE_FLAGS) $(VTV_CXXFLAGS) \
+ 	$(WARN_CXXFLAGS) $(OPTIMIZE_CXXFLAGS) $(CONFIG_CXXFLAGS)