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gnu: gcc: Prefer language-specific variables over 'CPATH'.

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Suggested by Andy Wingo <wingo@igalia.com>.
Fixes <http://bugs.gnu.org/22186>.

* gnu/packages/gcc.scm (gcc-4.7)[native-search-paths]: Remove 'CPATH';
add 'C_INCLUDE_PATH' and 'CPLUS_INCLUDE_PATH' instead.
* gnu/packages/gcc.scm (custom-gcc): Add 'search-paths' parameter and
honor it.
(%generic-search-paths): New variable.
(gfortran-4.8, gfortran-4.9, gfortran, gfortran-5, gccgo-4.8): Pass
%GENERIC-SEARCH-PATHS to 'custom-gcc'.
(gcj)[native-search-paths]: New field.
(gcc-objc-4.8, gcc-objc++-4.8): Use 'OBJC_INCLUDE_PATH' and
'OBJCPLUS_INCLUDE_PATH', respectively.
This commit is contained in:
Ludovic Courtès 2015-12-18 21:38:49 +01:00
parent 8309c3899a
commit 009b53fd1c
1 changed files with 53 additions and 9 deletions
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62
gnu/packages/gcc.scm
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@ -293,8 +293,16 @@ (define-public gcc-4.7
%standard-phases))))
(native-search-paths
;; Use the language-specific variables rather than 'CPATH' because they
;; are equivalent to '-isystem' whereas 'CPATH' is equivalent to '-I'.
;; The intent is to allow headers that are in the search path to be
;; treated as "system headers" (headers exempt from warnings) just like
;; the typical /usr/include headers on an FHS system.
(list (search-path-specification
(variable "CPATH")
(variable "C_INCLUDE_PATH")
(files '("include")))
(search-path-specification
(variable "CPLUS_INCLUDE_PATH")
(files '("include")))
(search-path-specification
(variable "LIBRARY_PATH")
@ -408,13 +416,18 @@ (define (make-libiberty gcc)
(define-public libiberty
(make-libiberty gcc))
(define* (custom-gcc gcc name languages #:key (separate-lib-output? #t))
"Return a custom version of GCC that supports LANGUAGES."
(define* (custom-gcc gcc name languages
#:optional
(search-paths (package-native-search-paths gcc))
#:key (separate-lib-output? #t))
"Return a custom version of GCC that supports LANGUAGES. Use SEARCH-PATHS
as the 'native-search-paths' field."
(package (inherit gcc)
(name name)
(outputs (if separate-lib-output?
(package-outputs gcc)
(delete "lib" (package-outputs gcc))))
(native-search-paths search-paths)
(arguments
(substitute-keyword-arguments `(#:modules ((guix build gnu-build-system)
(guix build utils)
@ -428,20 +441,37 @@ (define* (custom-gcc gcc name languages #:key (separate-lib-output? #t))
(remove (cut string-match "--enable-languages.*" <>)
,flags)))))))
(define %generic-search-paths
;; This is the language-neutral search path for GCC. Entries in $CPATH are
;; not considered "system headers", which means GCC can raise warnings for
;; issues in those headers. 'CPATH' is the only one that works for
;; front-ends not in the C family.
(list (search-path-specification
(variable "CPATH")
(files '("include")))
(search-path-specification
(variable "LIBRARY_PATH")
(files '("lib" "lib64")))))
(define-public gfortran-4.8
(custom-gcc gcc-4.8 "gfortran" '("fortran")))
(custom-gcc gcc-4.8 "gfortran" '("fortran")
%generic-search-paths))
(define-public gfortran-4.9
(custom-gcc gcc-4.9 "gfortran" '("fortran")))
(custom-gcc gcc-4.9 "gfortran" '("fortran")
%generic-search-paths))
(define-public gfortran
(custom-gcc gcc "gfortran" '("fortran")))
(custom-gcc gcc "gfortran" '("fortran")
%generic-search-paths))
(define-public gfortran-5
(custom-gcc gcc-5 "gfortran" '("fortran")))
(custom-gcc gcc-5 "gfortran" '("fortran")
%generic-search-paths))
(define-public gccgo-4.8
(custom-gcc gcc-4.8 "gccgo" '("go")
%generic-search-paths
;; Suppress the separate "lib" output, because otherwise the
;; "lib" and "out" outputs would refer to each other, creating
;; a cyclic dependency. <http://debbugs.gnu.org/18101>
@ -468,6 +498,8 @@ (define-public gcj
(native-inputs
`(("dejagnu" ,dejagnu)
,@(package-native-inputs gcc)))
(native-search-paths %generic-search-paths)
;; Suppress the separate "lib" output, because otherwise the
;; "lib" and "out" outputs would refer to each other, creating
;; a cyclic dependency. <http://debbugs.gnu.org/18101>
@ -551,10 +583,22 @@ (define ecj-bootstrap
"1k9lgm3qamf6zy534pa2zwskr8mpiqrngbv1vw9j4y1ghrdyf1lm"))))
(define-public gcc-objc-4.8
(custom-gcc gcc-4.8 "gcc-objc" '("objc")))
(custom-gcc gcc-4.8 "gcc-objc" '("objc")
(list (search-path-specification
(variable "OBJC_INCLUDE_PATH")
(files '("include")))
(search-path-specification
(variable "LIBRARY_PATH")
(files '("lib" "lib64"))))))
(define-public gcc-objc++-4.8
(custom-gcc gcc-4.8 "gcc-objc++" '("obj-c++")))
(custom-gcc gcc-4.8 "gcc-objc++" '("obj-c++")
(list (search-path-specification
(variable "OBJCPLUS_INCLUDE_PATH")
(files '("include")))
(search-path-specification
(variable "LIBRARY_PATH")
(files '("lib" "lib64"))))))
(define (make-libstdc++-doc gcc)
"Return a package with the libstdc++ documentation for GCC."