[bug#43427] [PATCH] gnu: zstd: Update to 1.4.5.

[Greg Hogan <code@greghogan.com>]

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From 3875f9c53d6aa9a3c97e0187ab614f44fcf04acf Mon Sep 17 00:00:00 2001
From: Greg Hogan <code@greghogan.com>
Date: Tue, 15 Sep 2020 14:06:48 +0000
Subject: [PATCH] gnu: zstd: Update to 1.4.5.

* gnu/packages/compression.scm (zstd): Update to 1.4.5.
set pkg-config paths in make-flags (see zstd@e668c9b5).
---
 gnu/packages/compression.scm | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/compression.scm b/gnu/packages/compression.scm
index 97f254ff6e..7f4662dc8b 100644
--- a/gnu/packages/compression.scm
+++ b/gnu/packages/compression.scm
@@ -1383,14 +1383,14 @@ or junctions, and always follows hard links.")
 (define-public zstd
   (package
     (name "zstd")
-    (version "1.4.4")
+    (version "1.4.5")
     (source
      (origin
        (method url-fetch)
        (uri (string-append "
https://github.com/facebook/zstd/releases/download/"
                            "v" version "/zstd-" version ".tar.gz"))
        (sha256
-        (base32 "05ckxap00qvc0j51d3ci38150cxsw82w7s9zgd5fgzspnzmp1vsr"))))
+        (base32 "17nf0r20360i80689bg5ipxbk2413b2dn3z7wj8byqpiddy1rscq"))))
     (build-system gnu-build-system)
     (outputs '("out"                    ;1.2MiB executables and
documentation
                "lib"                    ;1.2MiB shared library and headers
@@ -1425,6 +1425,11 @@ or junctions, and always follows hard links.")
              (string-append "PREFIX=" (assoc-ref %outputs "out"))
              (string-append "LIBDIR=" (assoc-ref %outputs "lib") "/lib")
              (string-append "INCLUDEDIR=" (assoc-ref %outputs "lib")
"/include")
+             ;; Hard-code the relative paths written to the pkg-config
file.
+             ;; zstd's lib/Makefile expects the exec path ("out" output) to
+             ;; be a parent path of the library path ("lib" output).
+             (string-append "PCLIBDIR=" "lib")
+             (string-append "PCINCDIR=" "include")
              ;; Skip auto-detection of, and creating a dependency on, the
build
              ;; environment's ‘xz’ for what amounts to a dubious feature
anyway.
              "HAVE_LZMA=0"
-- 
2.28.0

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