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-rw-r--r--gnu/packages/bison.scm13
-rw-r--r--gnu/packages/flex.scm24
2 files changed, 23 insertions, 14 deletions
diff --git a/gnu/packages/bison.scm b/gnu/packages/bison.scm
index eafce34b52..2d2209c4ff 100644
--- a/gnu/packages/bison.scm
+++ b/gnu/packages/bison.scm
@@ -40,17 +40,8 @@
(base32
"1j14fqgi9wzqgsy4fhkcdrv4hv6rrvhvn84axs520w9b022mbb79"))))
(build-system gnu-build-system)
- (native-inputs `(("perl" ,perl)
-
- ;; We need Flex for the test suite, and Flex needs Bison.
- ;; To break the cycle, we remove Bison from the inputs of
- ;; Flex, and disable Flex's test suite, since it requires
- ;; Bison.
- ("flex" ,(package (inherit flex)
- (arguments '(#:tests? #f))
- (inputs
- (alist-delete "bison"
- (package-inputs flex)))))))
+ (native-inputs `(("perl" ,perl)))
+ (inputs `(("flex" ,flex)))
(propagated-inputs `(("m4" ,m4)))
(home-page "http://www.gnu.org/software/bison/")
(synopsis "Parser generator")
diff --git a/gnu/packages/flex.scm b/gnu/packages/flex.scm
index beddb620a7..3dc7372acb 100644
--- a/gnu/packages/flex.scm
+++ b/gnu/packages/flex.scm
@@ -25,6 +25,7 @@
#:use-module (gnu packages m4)
#:use-module (gnu packages bison)
#:use-module (gnu packages indent)
+ #:use-module (srfi srfi-1)
#:export (flex))
(define flex
@@ -41,9 +42,26 @@
(build-system gnu-build-system)
(arguments
'(#:patches (list (assoc-ref %build-inputs "patch/bison-tests"))))
- (inputs `(("patch/bison-tests" ,(search-patch "flex-bison-tests.patch"))
- ("bison" ,bison)
- ("indent" ,indent)))
+ (inputs
+ (let ((bison-for-tests
+ ;; Work around an incompatibility with Bison 3.0:
+ ;; <http://lists.gnu.org/archive/html/bug-bison/2013-09/msg00014.html>.
+ (package (inherit bison)
+ (version "2.7.1")
+ (source (origin
+ (method url-fetch)
+ (uri (string-append "mirror://gnu/bison/bison-"
+ version ".tar.xz"))
+ (sha256
+ (base32
+ "1yx7isx67sdmyijvihgyra1f59fwdz7sqriginvavfj5yb5ss2dl"))))
+
+ ;; Unlike Bison 3.0, this version did not need Flex for its
+ ;; tests, so it allows us to break the cycle.
+ (inputs (alist-delete "flex" (package-inputs bison))))))
+ `(("patch/bison-tests" ,(search-patch "flex-bison-tests.patch"))
+ ("bison" ,bison-for-tests)
+ ("indent" ,indent))))
(propagated-inputs `(("m4" ,m4)))
(home-page "http://flex.sourceforge.net/")
(synopsis "A fast lexical analyser generator")