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gnu: gcc@4.9, gcc@5.5: Build with '-std=c++11'.

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These two compilers would fail to build with GCC 11.3.0 because it
defaults to C++17, which triggers some incompatibilities.

* gnu/packages/gcc.scm (gcc-4.7)[arguments]: Augment #:configure-flags
for 4.9 and 5.0.
(gcc-4.9)[arguments]: Define 'parent' so that (package-arguments parent)
correctly evaluates the version-dependent parts.
This commit is contained in:
Ludovic Courtès 2023-03-03 22:37:40 +01:00
parent f073a850c9
commit 0aed5bf512
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GPG key ID: 090B11993D9AEBB5
1 changed files with 40 additions and 25 deletions
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23
gnu/packages/gcc.scm
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@ -182,7 +182,16 @@ where the OS part is overloaded to denote a specific ABI---into GCC
(arguments (arguments
`(#:out-of-source? #t `(#:out-of-source? #t
#:configure-flags ,(configure-flags) #:configure-flags ,(let ((flags (configure-flags))
(version (package-version this-package)))
;; GCC 4.9 and 5.0 requires C++11 but GCC
;; 11.3.0 defaults to C++17, which is partly
;; incompatible. Force C++11.
(if (or (version-prefix? "4.9" version)
(version-prefix? "5" version))
`(cons "CXX=g++ -std=c++11" ,flags)
flags))
#:make-flags #:make-flags
;; None of the flags below are needed when doing a Canadian cross. ;; None of the flags below are needed when doing a Canadian cross.
;; TODO: Simplify this. ;; TODO: Simplify this.
@ -439,11 +448,17 @@ Go. It also includes runtime support libraries for these languages.")
(native-inputs (list perl ;for manpages (native-inputs (list perl ;for manpages
texinfo)) texinfo))
(arguments (arguments
;; Since 'arguments' is a function of the package's version, define
;; 'parent' such that the 'arguments' thunk gets to see the right
;; version.
(let ((parent (package
(inherit gcc-4.8)
(version (package-version this-package)))))
(if (%current-target-system) (if (%current-target-system)
(package-arguments gcc-4.8) (package-arguments parent)
;; For native builds of GCC 4.9 and GCC 5, the C++ include path needs ;; For native builds of GCC 4.9 and GCC 5, the C++ include path needs
;; to be adjusted so it does not interfere with GCC's own build processes. ;; to be adjusted so it does not interfere with GCC's own build processes.
(substitute-keyword-arguments (package-arguments gcc-4.8) (substitute-keyword-arguments (package-arguments parent)
((#:modules modules %gnu-build-system-modules) ((#:modules modules %gnu-build-system-modules)
`((srfi srfi-1) `((srfi srfi-1)
,@modules)) ,@modules))
@ -462,7 +477,7 @@ Go. It also includes runtime support libraries for these languages.")
":")) ":"))
(format #t (format #t
"environment variable `CPLUS_INCLUDE_PATH' changed to ~a~%" "environment variable `CPLUS_INCLUDE_PATH' changed to ~a~%"
(getenv "CPLUS_INCLUDE_PATH")))))))))))) (getenv "CPLUS_INCLUDE_PATH")))))))))))))
(define gcc-canadian-cross-objdump-snippet (define gcc-canadian-cross-objdump-snippet
;; Fix 'libcc1/configure' error when cross-compiling GCC. Without that, ;; Fix 'libcc1/configure' error when cross-compiling GCC. Without that,