--- eclass/toolchain-funcs.eclass.orig	2014-01-17 04:01:16.000000000 +0000
+++ eclass/toolchain-funcs.eclass	2014-03-30 23:24:57.000000000 +0100
@@ -353,6 +353,13 @@
 	return ${ret}
 }
 
+# @FUNCTION: tc-has-unsigned-char
+# @USAGE: [toolchain prefix]
+# @DESCRIPTION:
+# See if the toolchain's char type is unsigned.
+tc-has-unsigned-char() {
+	$(tc-getCC "$@") ${CFLAGS} -dM -E - < /dev/null | grep -Fxq "#define __CHAR_UNSIGNED__ 1"
+}
 
 # Parse information from CBUILD/CHOST/CTARGET rather than
 # use external variables from the profile.
--- dev-util/cmake/cmake-2.8.12.2.ebuild.orig	2014-03-25 09:31:15.000000000 +0000
+++ dev-util/cmake/cmake-2.8.12.2.ebuild	2014-03-30 23:16:34.000000000 +0100
@@ -65,6 +65,7 @@
 	"${FILESDIR}"/${PN}-2.8.12.1-FindImageMagick.patch
 	"${FILESDIR}"/${PN}-2.8.12.1-FindFreetype.patch
 	"${FILESDIR}"/${PN}-2.8.12.2-hppa-bootstrap.patch
+	"${FILESDIR}"/${PN}-2.8.12.2-no-cross-docs.patch
 )
 
 cmake_src_bootstrap() {
@@ -83,10 +84,8 @@
 		sed -i -e 's/execinfo\.h/blablabla.h/' Source/kwsys/CMakeLists.txt || die
 	fi
 
-	tc-export CC CXX LD
-
 	# bootstrap script isn't exactly /bin/sh compatible
-	${CONFIG_SHELL:-sh} ./bootstrap \
+	tc-env_build ${CONFIG_SHELL:-sh} ./bootstrap \
 		--prefix="${T}/cmakestrap/" \
 		${par_arg} \
 		|| die "Bootstrap failed"
@@ -153,6 +152,16 @@
 		$(cmake-utils_use_build ncurses CursesDialog)
 	)
 
+	if tc-is-cross-compiler ; then
+		mycmakeargs+=(-DKWSYS_LFS_WORKS=1)
+
+		if tc-has-unsigned-char ; then
+			mycmakeargs+=(-DKWSYS_CHAR_IS_SIGNED=0)
+		else
+			mycmakeargs+=(-DKWSYS_CHAR_IS_SIGNED=1)
+		fi
+	fi
+
 	if use qt4 || use qt5 ; then
 		mycmakeargs+=(
 			-DBUILD_QtDialog=ON