From 5fb85fef7b1475baca6c29beb26799ca8f3d814a Mon Sep 17 00:00:00 2001
From: Lukas Gradl <lgradl@openmailbox.org>
Date: Tue, 9 Aug 2016 16:49:19 -0500
Subject: [PATCH 04/10] gnu: argon2: Install pkg-config file.

* gnu/packages/password-utils.scm (argon2)[source]: Create pkg-config file.
[arguments]: Install it.
---
 gnu/packages/password-utils.scm | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/password-utils.scm b/gnu/packages/password-utils.scm
index 7288da6..f62d041 100644
--- a/gnu/packages/password-utils.scm
+++ b/gnu/packages/password-utils.scm
@@ -311,6 +311,21 @@ through the pass command.")
          "https://codeload.github.com/P-H-C/phc-winner-"
          name "/tar.gz/" version))
        (file-name (string-append name "-" version ".tar.gz"))
+       (snippet
+        '(let ((p (open-file "argon2.pc" "w")))
+           (begin
+             (display
+              (string-append "prefix=/usr/local\n"
+                             "exec_prefix=${prefix}\n"
+                             "includedir=${prefix}/include\n"
+                             "libdir=${prefix}/lib\n\n"
+                             "Name: Argon2\n"
+                             "Description: "
+                             "The Argon2 password hashing algorithm\n"
+                             "Version: 1.0.0\n"
+                             "Cflags: -I${includedir}/\n"
+                             "Libs: -L${libdir} -largon2\n") p)
+             (close-output-port p))))
        (sha256
         (base32
          "0g6wa94sh639xl1qc8z21q43r1mp8y77r1zf8nwx5pfsxd8fmyzv"))))
@@ -321,14 +336,23 @@ through the pass command.")
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)
+         (add-after 'unpack 'fix-pkg-config
+           (lambda _
+             (substitute* "argon2.pc"
+               (("/usr/local")
+                (assoc-ref %outputs "out")))))
          (replace 'install
            (lambda _
              (let ((out (assoc-ref %outputs "out")))
                (install-file "argon2" (string-append out "/bin"))
                (install-file "libargon2.a" (string-append out "/lib"))
                (install-file "libargon2.so" (string-append out "/lib"))
+               (install-file "argon2.pc"
+                             (string-append out "/lib/pkgconfig"))
                (copy-recursively "include"
-                                 (string-append out "/include"))))))))
+                                 (string-append out "/include"))
+               (symlink (string-append out "/lib/libargon2.so")
+                        (string-append out "/lib/libargon2.so.0"))))))))
     (home-page "https://www.argon2.com/")
     (synopsis "Password hashing library")
     (description "Argon2 provides a key derivation function that was declared
-- 
2.9.0