fzf: fix musl build

srcpkgs/fzf/patches/0001-Portable-implementation-of-swapOutput.patch

@@ -0,0 +1,39 @@
+From 5073ddcd87868dfbaab7a8b2f2eff4cb509662a9 Mon Sep 17 00:00:00 2001
+From: Dominik Honnef <dominik@honnef.co>
+Date: Sat, 6 Jun 2015 23:25:03 +0200
+Subject: [PATCH] Portable implementation of swapOutput
+
+Assigning to stdin, stdout and stderr is not portable. They're specified
+to be macros, and for example musl will not allow such code to be
+compiled.
+
+Use dup2 instead.
+---
+ src/curses/curses.go | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/src/curses/curses.go b/src/curses/curses.go
+index 985dd87..1cfc2c9 100644
+--- src/curses/curses.go
++++ src/curses/curses.go
+@@ -1,13 +1,14 @@
+ package curses
+ 
+ /*
++#include <unistd.h>
+ #include <ncurses.h>
+ #include <locale.h>
+ #cgo LDFLAGS: -lncurses
+ void swapOutput() {
+-  FILE* temp = stdout;
+-  stdout = stderr;
+-  stderr = temp;
++  dup2(2, 3);
++  dup2(1, 2);
++  dup2(3, 1);
+ }
+ */
+ import "C"
+-- 
+2.3.6
+

srcpkgs/fzf/template

@@ -1,7 +1,7 @@
 # Template file for 'fzf'
 pkgname=fzf
 version=0.9.13
-revision=1
+revision=2
 _version=${version}
 wrksrc=${pkgname}-${_version}
 build_style=go