1 files changed, 15 insertions, 5 deletions
diff --git a/gnu/packages/base.scm b/gnu/packages/base.scm
index c83775d8ee..47fca7c494 100644
--- a/gnu/packages/base.scm
+++ b/gnu/packages/base.scm
@@ -324,7 +324,7 @@ used to apply commands with arbitrarily long arguments.")
              ,@(if (and (not (%current-target-system))
                         (member (%current-system)
                                 (package-supported-systems libcap)))
-             `(("libcap" ,libcap))  ;capability support in 'ls', etc.
+             `(("libcap" ,libcap-2.31))        ;capability support in 'ls', etc.
              '())))
    (native-inputs
     ;; Perl is needed to run tests in native builds, and to run the bundled
@@ -1229,7 +1229,7 @@ command.")
 (define-public tzdata
   (package
     (name "tzdata")
-    (version "2020a")
+    (version "2020d")
     (source (origin
              (method url-fetch)
              (uri (string-append
@@ -1237,10 +1237,10 @@ command.")
                    version ".tar.gz"))
              (sha256
               (base32
-               "18lrp0zh8m931jjlrv8lvjas4ka5dfkzdbwnbw5lwd2dlbn62wal"))))
+               "1wxskk9mh1x2073n99qna2mq58mgi648mbq5dxlqfcrnvrbkk0cd"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:tests? #f
+     `(#:tests? #f
        #:make-flags (let ((out (assoc-ref %outputs "out"))
                           (tmp (getenv "TMPDIR")))
                       (list (string-append "TOPDIR=" out)
@@ -1252,6 +1252,16 @@ command.")
                             (string-append "LIBDIR=" tmp "/lib")
                             (string-append "MANDIR=" tmp "/man")
 
+                            ;; XXX: tzdata 2020b changed the on-disk format
+                            ;; of the time zone files from 'fat' to 'slim'.
+                            ;; Many packages (particularly evolution-data-server)
+                            ;; can not yet handle the latter, so we stick with
+                            ;; 'fat' for now.
+                            ,@(if (version>=? (package-version this-package)
+                                              "2020b")
+                                  '("CPPFLAGS=-DZIC_BLOAT_DEFAULT='\"fat\"'")
+                                  '())
+
                             "AWK=awk"
                             "CC=gcc"))
        #:modules ((guix build utils)
@@ -1287,7 +1297,7 @@ command.")
                                 version ".tar.gz"))
                           (sha256
                            (base32
-                            "0sfnlqw1p93r7klny69rwr94fh22mz632h52phgzfgg01q9gfakx"))))))
+                            "1mgsckixmmk9qxzsflfxnp3999qi3ls72bgksclk01g852x51w3c"))))))
     (home-page "https://www.iana.org/time-zones")
     (synopsis "Database of current and historical time zones")
     (description "The Time Zone Database (often called tz or zoneinfo)