diff options
| -rw-r--r-- | gnu/packages/haskell.scm | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm index c5408f8627..4b1e3f23b8 100644 --- a/gnu/packages/haskell.scm +++ b/gnu/packages/haskell.scm @@ -282,9 +282,11 @@ top of CLISP.") (mkdir-p libtinfo-dir) (symlink (string-append ncurses-lib "/libncursesw.so." - ;; Extract "6.0" from "6.0-20170930". + ;; Extract "6.0" from "6.0-20170930" if a + ;; dash-separated version tag exists. ,(let* ((v (package-version ncurses)) - (d (string-index v #\-))) + (d (or (string-index v #\-) + (string-length v)))) (version-major+minor (string-take v d)))) (string-append libtinfo-dir "/libtinfo.so.5")) |