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-rw-r--r--gnu/packages/gcc.scm40
1 files changed, 36 insertions, 4 deletions
diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm
index deaf02c6e3..821515f3ed 100644
--- a/gnu/packages/gcc.scm
+++ b/gnu/packages/gcc.scm
@@ -79,6 +79,14 @@ where the OS part is overloaded to denote a specific ABI---into GCC
"--with-local-prefix=/no-gcc-local-prefix"
+ ;; With a separate "lib" output, the build system
+ ;; incorrectly guesses GPLUSPLUS_INCLUDE_DIR, so force
+ ;; it. (Don't use a versioned sub-directory, that's
+ ;; unnecessary.)
+ ,(string-append "--with-gxx-include-dir="
+ (assoc-ref %outputs "out")
+ "/include/c++")
+
,(let ((libc (assoc-ref %build-inputs "libc")))
(if libc
(string-append "--with-native-system-header-dir=" libc
@@ -103,6 +111,12 @@ where the OS part is overloaded to denote a specific ABI---into GCC
(base32
"1hx9h64ivarlzi4hxvq42as5m9vlr5cyzaaq4gzj4i619zmkfz1g"))))
(build-system gnu-build-system)
+
+ ;; Separate out the run-time support libraries because all the
+ ;; dynamic-linked objects depend on it.
+ (outputs '("out" ; commands, etc. (60+ MiB)
+ "lib")) ; libgcc_s, libgomp, etc. (15+ MiB)
+
(inputs `(("gmp" ,gmp)
("mpfr" ,mpfr)
("mpc" ,mpc)
@@ -143,8 +157,9 @@ where the OS part is overloaded to denote a specific ABI---into GCC
(alist-cons-before
'configure 'pre-configure
(lambda* (#:key inputs outputs #:allow-other-keys)
- (let ((out (assoc-ref outputs "out"))
- (libc (assoc-ref inputs "libc")))
+ (let ((libdir (or (assoc-ref outputs "lib")
+ (assoc-ref outputs "out")))
+ (libc (assoc-ref inputs "libc")))
(when libc
;; The following is not performed for `--without-headers'
;; cross-compiler builds.
@@ -170,7 +185,7 @@ where the OS part is overloaded to denote a specific ABI---into GCC
;; <http://sourceware.org/ml/libc-help/2013-11/msg00023.html>.)
(format #f "#define GNU_USER_TARGET_LIB_SPEC \
\"-L~a/lib %{!static:-rpath=~a/lib %{!static-libgcc:-rpath=~a/lib64 -rpath=~a/lib -lgcc_s}} \" ~a"
- libc libc out out suffix))
+ libc libc libdir libdir suffix))
(("#define GNU_USER_TARGET_STARTFILE_SPEC.*$" line)
(format #f "#define STANDARD_STARTFILE_PREFIX_1 \"~a/lib\"
#define STANDARD_STARTFILE_PREFIX_2 \"\"
@@ -180,7 +195,24 @@ where the OS part is overloaded to denote a specific ABI---into GCC
;; 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\";"))))
+ "static char const sed_cmd_z[] = \"sed\";"))
+
+ ;; Move libstdc++*-gdb.py to the "lib" output to avoid a
+ ;; circularity between "out" and "lib". (Note:
+ ;; --with-python-dir is useless because it imposes $(prefix) as
+ ;; the parent directory.)
+ (substitute* "libstdc++-v3/python/Makefile.in"
+ (("pythondir = .*$")
+ (string-append "pythondir = " libdir "/share"
+ "/gcc-$(gcc_version)/python\n")))
+
+ ;; Avoid another circularity between the outputs: this #define
+ ;; ends up in auto-host.h in the "lib" output, referring to
+ ;; "out". (This variable is used to augment cpp's search path,
+ ;; but there's nothing useful to look for here.)
+ (substitute* "gcc/config.in"
+ (("PREFIX_INCLUDE_DIR")
+ "PREFIX_INCLUDE_DIR_isnt_necessary_here"))))
(alist-cons-after
'configure 'post-configure