From 153e7fca326bf021eb915b626a565259f10e669a Mon Sep 17 00:00:00 2001
From: strager <strager.nds@gmail.com>
Date: Tue, 16 Apr 2019 00:11:01 -0700
Subject: [PATCH] boost: fix 1.55 build on macOS (#59508)

darwin-no-system-python.patch does not apply cleany on Boost 1.55's
sources. Fix this patch file for Boost 1.55, making it build
successfully on macOS.
---
 .../boost/darwin-1.55-no-system-python.patch  | 45 +++++++++++++++++++
 pkgs/development/libraries/boost/generic.nix  |  5 ++-
 2 files changed, 49 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/development/libraries/boost/darwin-1.55-no-system-python.patch

diff --git a/pkgs/development/libraries/boost/darwin-1.55-no-system-python.patch b/pkgs/development/libraries/boost/darwin-1.55-no-system-python.patch
new file mode 100644
index 000000000000..f8163f6d2718
--- /dev/null
+++ b/pkgs/development/libraries/boost/darwin-1.55-no-system-python.patch
@@ -0,0 +1,45 @@
+diff --git a/tools/build/src/tools/python.jam b/tools/build/src/tools/python.jam
+index 273b28a..2d2031e 100644
+--- a/tools/build/v2/tools/python.jam
++++ b/tools/build/v2/tools/python.jam
+@@ -428,13 +428,7 @@ local rule windows-installed-pythons ( version ? )
+ 
+ local rule darwin-installed-pythons ( version ? )
+ {
+-    version ?= $(.version-countdown) ;
+-
+-    local prefix
+-      = [ GLOB /System/Library/Frameworks /Library/Frameworks
+-          : Python.framework ] ;
+-
+-    return $(prefix)/Versions/$(version)/bin/python ;
++    return ;
+ }
+ 
+ 
+@@ -890,25 +884,6 @@ local rule configure ( version ? : cmd-or-prefix ? : includes * : libraries ? :
+ 
+     # See if we can find a framework directory on darwin.
+     local framework-directory ;
+-    if $(target-os) = darwin
+-    {
+-        # Search upward for the framework directory.
+-        local framework-directory = $(libraries[-1]) ;
+-        while $(framework-directory:D=) && $(framework-directory:D=) != Python.framework
+-        {
+-            framework-directory = $(framework-directory:D) ;
+-        }
+-
+-        if $(framework-directory:D=) = Python.framework
+-        {
+-            debug-message framework directory is \"$(framework-directory)\" ;
+-        }
+-        else
+-        {
+-            debug-message "no framework directory found; using library path" ;
+-            framework-directory = ;
+-        }
+-    }
+ 
+     local dll-path = $(libraries) ;
+ 
diff --git a/pkgs/development/libraries/boost/generic.nix b/pkgs/development/libraries/boost/generic.nix
index dd383bd01231..8ce44b878d07 100644
--- a/pkgs/development/libraries/boost/generic.nix
+++ b/pkgs/development/libraries/boost/generic.nix
@@ -104,7 +104,10 @@ stdenv.mkDerivation {
   patchFlags = "";
 
   patches = patches
-    ++ optional stdenv.isDarwin ./darwin-no-system-python.patch;
+  ++ optional stdenv.isDarwin (
+    if version == "1.55.0"
+    then ./darwin-1.55-no-system-python.patch
+    else ./darwin-no-system-python.patch);
 
   meta = {
     homepage = http://boost.org/;