cmake: unbreak musl build; patch from Alpine.

srcpkgs/cmake/patches/musl-header-fixes.patch

@@ -0,0 +1,13 @@
+mode_t needs sys/stat.h
+
+--- Source/cmStandardIncludes.h.orig
++++ Source/cmStandardIncludes.h
+@@ -74,6 +74,8 @@
+ 
+ #if defined( _MSC_VER )
+ typedef unsigned short mode_t;
++#else
++#include <sys/stat.h>
+ #endif
+ 
+ // use this class to shrink the size of symbols in .o files

srcpkgs/cmake/template

@@ -1,7 +1,7 @@
 # Template file for 'cmake'
 pkgname=cmake
 version=3.2.2
-revision=1
+revision=2
 build_style=configure
 makedepends="zlib-devel bzip2-devel expat-devel libcurl-devel jsoncpp-devel ncurses-devel libarchive-devel"
 short_desc="Cross-platform, open-source build system"