gnu: gcc: Allow cross-compilation of GCC itself.

* gnu/packages/gcc.scm (gcc-4.7): Define `CC_FOR_TARGET',
  `AR_FOR_TARGET', etc. when cross-compiling.
This commit is contained in:
Ludovic Courtès 2013-06-26 16:51:39 +02:00
parent e7133c7680
commit de1d41f980

View file

@ -32,129 +32,150 @@ (define %gcc-infrastructure
"ftp://gcc.gnu.org/pub/gcc/infrastructure/")
(define-public gcc-4.7
(let ((stripped? #t)) ; TODO: make this a parameter
(let* ((stripped? #t) ; TODO: make this a parameter
(maybe-target-tools
(lambda ()
;; Return the `_FOR_TARGET' variables that are needed when
;; cross-compiling GCC.
(let ((target (%current-target-system)))
(if target
(map (lambda (var tool)
(string-append (string-append var "_FOR_TARGET")
"=" target "-" tool))
'("CC" "CXX" "LD" "AR" "NM" "RANLIB" "STRIP")
'("gcc" "g++" "ld" "ar" "nm" "ranlib" "strip"))
'()))))
(configure-flags
(lambda ()
;; This is terrible. Since we have two levels of quasiquotation,
;; we have to do this convoluted thing just so we can insert the
;; contents of (maybe-target-tools).
(list 'quasiquote
(append
'("--enable-plugin"
"--enable-languages=c,c++"
"--disable-multilib"
"--with-local-prefix=/no-gcc-local-prefix"
,(let ((libc (assoc-ref %build-inputs "libc")))
(if libc
(string-append "--with-native-system-header-dir=" libc
"/include")
"--without-headers")))
(maybe-target-tools))))))
(package
(name "gcc")
(version "4.7.3")
(source (origin
(method url-fetch)
(uri (string-append "mirror://gnu/gcc/gcc-"
version "/gcc-" version ".tar.bz2"))
(sha256
(base32
"1hx9h64ivarlzi4hxvq42as5m9vlr5cyzaaq4gzj4i619zmkfz1g"))))
(build-system gnu-build-system)
(inputs `(("gmp" ,gmp)
("mpfr" ,mpfr)
("mpc" ,mpc)
("isl" ,isl)
("cloog" ,cloog)
("libelf" ,libelf)
("zlib" ,zlib)))
(arguments
`(#:out-of-source? #t
#:strip-binaries? ,stripped?
#:configure-flags
`("--enable-plugin"
"--enable-languages=c,c++"
"--disable-multilib"
(name "gcc")
(version "4.7.3")
(source (origin
(method url-fetch)
(uri (string-append "mirror://gnu/gcc/gcc-"
version "/gcc-" version ".tar.bz2"))
(sha256
(base32
"1hx9h64ivarlzi4hxvq42as5m9vlr5cyzaaq4gzj4i619zmkfz1g"))))
(build-system gnu-build-system)
(inputs `(("gmp" ,gmp)
("mpfr" ,mpfr)
("mpc" ,mpc)
("isl" ,isl)
("cloog" ,cloog)
("libelf" ,libelf)
("zlib" ,zlib)))
(arguments
`(#:out-of-source? #t
#:strip-binaries? ,stripped?
#:configure-flags ,(configure-flags)
#:make-flags
(let ((libc (assoc-ref %build-inputs "libc")))
`(,@(if libc
(list (string-append "LDFLAGS_FOR_TARGET="
"-B" libc "/lib "
"-Wl,-dynamic-linker "
"-Wl," libc
,(glibc-dynamic-linker)))
'())
,(string-append "BOOT_CFLAGS=-O2 "
,(if stripped? "-g0" "-g"))))
"--with-local-prefix=/no-gcc-local-prefix"
#:tests? #f
#:phases
(alist-cons-before
'configure 'pre-configure
(lambda* (#:key inputs outputs #:allow-other-keys)
(let ((out (assoc-ref outputs "out"))
(libc (assoc-ref inputs "libc")))
(when libc
;; The following is not performed for `--without-headers'
;; cross-compiler builds.
,(let ((libc (assoc-ref %build-inputs "libc")))
(if libc
(string-append "--with-native-system-header-dir=" libc
"/include")
"--without-headers")))
#:make-flags
(let ((libc (assoc-ref %build-inputs "libc")))
`(,@(if libc
(list (string-append "LDFLAGS_FOR_TARGET="
"-B" libc "/lib "
"-Wl,-dynamic-linker "
"-Wl," libc
,(glibc-dynamic-linker)))
'())
,(string-append "BOOT_CFLAGS=-O2 "
,(if stripped? "-g0" "-g"))))
;; Fix the dynamic linker's file name.
(substitute* (find-files "gcc/config"
"^linux(64|-elf)?\\.h$")
(("#define GLIBC_DYNAMIC_LINKER([^ ]*).*$" _ suffix)
(format #f "#define GLIBC_DYNAMIC_LINKER~a \"~a\"~%"
suffix
(string-append libc ,(glibc-dynamic-linker)))))
#:tests? #f
#:phases
(alist-cons-before
'configure 'pre-configure
(lambda* (#:key inputs outputs #:allow-other-keys)
(let ((out (assoc-ref outputs "out"))
(libc (assoc-ref inputs "libc")))
(when libc
;; The following is not performed for `--without-headers'
;; cross-compiler builds.
;; Fix the dynamic linker's file name.
(substitute* (find-files "gcc/config"
"^linux(64|-elf)?\\.h$")
(("#define GLIBC_DYNAMIC_LINKER([^ ]*).*$" _ suffix)
(format #f "#define GLIBC_DYNAMIC_LINKER~a \"~a\"~%"
suffix
(string-append libc ,(glibc-dynamic-linker)))))
;; Tell where to find libstdc++, libc, and `?crt*.o', except
;; `crt{begin,end}.o', which come with GCC.
(substitute* (find-files "gcc/config"
"^(gnu-user(64)?|linux-elf)\\.h$")
(("#define LIB_SPEC (.*)$" _ suffix)
;; Note that with this "lib" spec, we may still add a
;; RUNPATH to GCC even when `libgcc_s' is not NEEDED.
;; There's not much that can be done to avoid it, though.
(format #f "#define LIB_SPEC \"-L~a/lib %{!static:-rpath=~a/lib \
;; Tell where to find libstdc++, libc, and `?crt*.o', except
;; `crt{begin,end}.o', which come with GCC.
(substitute* (find-files "gcc/config"
"^(gnu-user(64)?|linux-elf)\\.h$")
(("#define LIB_SPEC (.*)$" _ suffix)
;; Note that with this "lib" spec, we may still add a
;; RUNPATH to GCC even when `libgcc_s' is not NEEDED.
;; There's not much that can be done to avoid it, though.
(format #f "#define LIB_SPEC \"-L~a/lib %{!static:-rpath=~a/lib \
%{!static-libgcc:-rpath=~a/lib64 -rpath=~a/lib}} \" ~a"
libc libc out out suffix))
(("#define STARTFILE_SPEC.*$" line)
(format #f "#define STANDARD_STARTFILE_PREFIX_1 \"~a/lib\"
libc libc out out suffix))
(("#define STARTFILE_SPEC.*$" line)
(format #f "#define STANDARD_STARTFILE_PREFIX_1 \"~a/lib\"
#define STANDARD_STARTFILE_PREFIX_2 \"\"
~a~%"
libc line))))
libc line))))
;; Don't retain a dependency on the build-time sed.
(substitute* "fixincludes/fixincl.x"
(("static char const sed_cmd_z\\[\\] =.*;")
"static char const sed_cmd_z[] = \"sed\";"))))
;; Don't retain a dependency on the build-time sed.
(substitute* "fixincludes/fixincl.x"
(("static char const sed_cmd_z\\[\\] =.*;")
"static char const sed_cmd_z[] = \"sed\";"))))
(alist-cons-after
'configure 'post-configure
(lambda _
;; Don't store configure flags, to avoid retaining references to
;; build-time dependencies---e.g., `--with-ppl=/nix/store/xxx'.
(substitute* "Makefile"
(("^TOPLEVEL_CONFIGURE_ARGUMENTS=(.*)$" _ rest)
"TOPLEVEL_CONFIGURE_ARGUMENTS=\n")))
(alist-replace 'install
(lambda* (#:key outputs #:allow-other-keys)
(zero?
(system* "make"
,(if stripped?
"install-strip"
"install"))))
%standard-phases)))))
(alist-cons-after
'configure 'post-configure
(lambda _
;; Don't store configure flags, to avoid retaining references to
;; build-time dependencies---e.g., `--with-ppl=/nix/store/xxx'.
(substitute* "Makefile"
(("^TOPLEVEL_CONFIGURE_ARGUMENTS=(.*)$" _ rest)
"TOPLEVEL_CONFIGURE_ARGUMENTS=\n")))
(alist-replace 'install
(lambda* (#:key outputs #:allow-other-keys)
(zero?
(system* "make"
,(if stripped?
"install-strip"
"install"))))
%standard-phases)))))
(native-search-paths
(list (search-path-specification
(variable "CPATH")
(directories '("include")))
(search-path-specification
(variable "LIBRARY_PATH")
(directories '("lib" "lib64")))))
(native-search-paths
(list (search-path-specification
(variable "CPATH")
(directories '("include")))
(search-path-specification
(variable "LIBRARY_PATH")
(directories '("lib" "lib64")))))
(properties `((gcc-libc . ,(assoc-ref inputs "libc"))))
(synopsis "GNU Compiler Collection")
(description
"The GNU Compiler Collection includes compiler front ends for C, C++,
(properties `((gcc-libc . ,(assoc-ref inputs "libc"))))
(synopsis "GNU Compiler Collection")
(description
"The GNU Compiler Collection includes compiler front ends for C, C++,
Objective-C, Fortran, OpenMP for C/C++/Fortran, Java, and Ada, as well as
libraries for these languages (libstdc++, libgcj, libgomp,...).
GCC development is a part of the GNU Project, aiming to improve the compiler
used in the GNU system including the GNU/Linux variant.")
(license gpl3+)
(home-page "http://gcc.gnu.org/"))))
(license gpl3+)
(home-page "http://gcc.gnu.org/"))))
(define-public gcc-4.8
;; FIXME: Move to gcc.scm when Binutils is updated.