[bug#64287] [PATCH 3/9] gnu: eye: Fix build.

[Sharlatan Hellseher <sharlatanus@gmail.com>]

* gnu/packages/astronomy.scm (eye): Fix build.
[source]: Swap to 'git-fetch
[arguments]: Add CPPFLAGS to pass build with GCC 10.
---
 gnu/packages/astronomy.scm | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/gnu/packages/astronomy.scm b/gnu/packages/astronomy.scm
index 17bc4ed7d7..326a9a170e 100644
--- a/gnu/packages/astronomy.scm
+++ b/gnu/packages/astronomy.scm
@@ -579,12 +579,21 @@ (define-public eye
     (version "1.4.1")
     (source
      (origin
-       (method url-fetch)
-       (uri (string-append "https://www.astromatic.net/download/eye/"
-                           "eye-" version ".tar.gz"))
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/astromatic/eye")
+             (commit version)))
        (sha256
-        (base32 "092qhzcbrkcfidbx4bv9wz42w297n80jk7a6kwyi9a3fjfz81d7k"))))
+        (base32 "1j8rpgz3fjp6fw0qmxgfqycf3n01fzxds4w12vgyrhbnk658ia41"))
+       (file-name (git-file-name name version))))
     (build-system gnu-build-system)
+    (arguments
+     (list
+      #:configure-flags
+      #~(list
+         ;; Address this link error:
+         ;; ld: ... multiple definition of ... first defined here
+         "CPPFLAGS=-O2 -g -fcommon")))
     (home-page "https://www.astromatic.net/software/eye")
     (synopsis "Small image feature detector using machine learning")
     (description
-- 
2.40.1