From 0eafcccbc2007ff12d709ea77d295707d847ca13 Mon Sep 17 00:00:00 2001
From: Doron Behar <doron.behar@gmail.com>
Date: Mon, 3 Aug 2020 20:22:12 +0300
Subject: [PATCH] libsvm: make it possible to use it for saga

saga, as possibly other packages too, searches for svm.h in
include/libsvm/svm.h. Since the package doesn't hold a proper install
target, it should be OK to link the `svm.h` to `libsvm/svm.h` in
`$out/include/`.
---
 pkgs/development/libraries/libsvm/default.nix | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/pkgs/development/libraries/libsvm/default.nix b/pkgs/development/libraries/libsvm/default.nix
index 0709f3867e4..5dc4deb30be 100644
--- a/pkgs/development/libraries/libsvm/default.nix
+++ b/pkgs/development/libraries/libsvm/default.nix
@@ -10,18 +10,19 @@ stdenv.mkDerivation rec {
   };
 
   buildPhase = ''
-  make
-  make lib
+    make
+    make lib
   '';
 
   installPhase = let
     libSuff = stdenv.hostPlatform.extensions.sharedLibrary;
   in ''
-    mkdir -p $out/lib $out/bin $out/include;
-    cp libsvm.so.2 $out/lib/libsvm.2${libSuff};
-    ln -s $out/lib/libsvm.2${libSuff} $out/lib/libsvm${libSuff};
-    cp svm-scale svm-train svm-predict $out/bin;
-    cp svm.h $out/include;
+    install -D libsvm.so.2 $out/lib/libsvm.2${libSuff}
+    ln -s $out/lib/libsvm.2${libSuff} $out/lib/libsvm${libSuff}
+    install -Dt $out/bin/ svm-scale svm-train svm-predict
+    install -Dm644 -t $out/include svm.h
+    mkdir $out/include/libsvm
+    ln -s $out/include/svm.h $out/include/libsvm/svm.h
   '';
 
   postFixup = stdenv.lib.optionalString stdenv.isDarwin ''