pixman: unbreak arm/musl; patch from Alpine.

srcpkgs/pixman/patches/float-header-fix.patch

@@ -0,0 +1,16 @@
+--- pixman/pixman-private.h.orig
++++ pixman/pixman-private.h
+@@ -1,5 +1,3 @@
+-#include <float.h>
+-
+ #ifndef PIXMAN_PRIVATE_H
+ #define PIXMAN_PRIVATE_H
+ 
+@@ -30,6 +28,7 @@
+ #include <stdio.h>
+ #include <string.h>
+ #include <stddef.h>
++#include <float.h>
+ 
+ #include "pixman-compiler.h"
+ 

srcpkgs/pixman/template

@@ -1,7 +1,7 @@
 # Template build file for 'pixman'.
 pkgname=pixman
 version=0.32.6
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--disable-gtk" # do not require gtk+!
 hostmakedepends="pkg-config perl"