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01/01: gnu: groff-minimal: Disable relocatability.


From: guix-commits
Subject: 01/01: gnu: groff-minimal: Disable relocatability.
Date: Thu, 17 Jan 2019 04:10:08 -0500 (EST)

dannym pushed a commit to branch master
in repository guix.

commit 73b2ce87956b0d9168dcfa234128b91e0e41a4c7
Author: Danny Milosavljevic <address@hidden>
Date:   Wed Jan 16 15:00:04 2019 +0100

    gnu: groff-minimal: Disable relocatability.
    
    * gnu/packages/groff.scm (groff-minimal)[arguments]<#:phases>
    [disable-relocatability]: New phase.
---
 gnu/packages/groff.scm | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/gnu/packages/groff.scm b/gnu/packages/groff.scm
index 77728a5..cf392f5 100644
--- a/gnu/packages/groff.scm
+++ b/gnu/packages/groff.scm
@@ -96,6 +96,36 @@ is usually the formatter of \"man\" documentation pages.")
        ,@(substitute-keyword-arguments (package-arguments groff)
            ((#:phases phases)
             `(modify-phases ,phases
+               (add-after 'unpack 'disable-relocatability
+                 (lambda _
+                   ;; Groff contains a Rube Goldberg-esque relocator for the
+                   ;; file "charset.alias".
+                   ;; It tries to find the current executable using realpath,
+                   ;; a do-it-yourself search in $PATH and so on.
+                   ;; Furthermore, the routine that does the search is buggy
+                   ;; in that it doesn't handle error cases when they arise.
+                   ;; This causes preconv to segfault when trying to look up
+                   ;; the file "charset.alias" in the NULL location.
+                   ;; The "charset.alias" parser is a copy of gnulib's, and a
+                   ;; non-broken version of gnulib's "charset.alias" parser
+                   ;; is part of glibc's libcharset.
+                   ;; However, groff unconditionally uses their own
+                   ;; "charset.alias" parser, but then DOES NOT INSTALL the
+                   ;; file "charset.alias" when glibc is too new.
+                   ;; In Guix, our file "charset.alias" only contains an
+                   ;; obscure alias for ASCII and nothing else.
+                   ;; So just disable relocation and make the entire
+                   ;; "charset.alias" lookup fail.
+                   ;; See <https://debbugs.gnu.org/cgi/bugreport.cgi?bug=30785>
+                   ;; for details.
+                   (substitute* "src/libs/libgroff/Makefile.sub"
+                    (("-DENABLE_RELOCATABLE=1") ""))
+                   ;; That file contains a crash bug--so make sure that
+                   ;; its contents are not there.
+                   (call-with-output-file "src/libs/libgroff/relocate.cpp"
+                     (lambda (port)
+                       #t))
+                   #t))
                (add-after 'install 'remove-non-essential-programs
                  (lambda* (#:key outputs #:allow-other-keys)
                    ;; Keep only the programs that man-db needs at run time,



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