Patch to allow building Expressif on case insensitive filesystems

crosstool-NG.patch

diff --git crosstool-NG/scripts/crosstool-NG.sh.in crosstool-NG/scripts/crosstool-NG.sh.in
--- a/scripts/crosstool-NG.sh.in
+++ b/scripts/crosstool-NG.sh.in
@@ -84,14 +84,14 @@
 
 # Where will we work?
-CT_WORK_DIR="${CT_WORK_DIR:-${CT_TOP_DIR}/.build}"
-CT_DoExecLog ALL mkdir -p "${CT_WORK_DIR}"
-CT_DoExecLog DEBUG rm -f "${CT_WORK_DIR}/backtrace"
+# CT_WORK_DIR="${CT_WORK_DIR:-${CT_TOP_DIR}/.build}"
+# CT_DoExecLog ALL mkdir -p "${CT_WORK_DIR}"
+# CT_DoExecLog DEBUG rm -f "${CT_WORK_DIR}/backtrace"
 
 # Check build file system case-sensitiveness
-CT_DoExecLog DEBUG touch "${CT_WORK_DIR}/foo"
-CT_TestAndAbort "Your file system in '${CT_WORK_DIR}' is *not* case-sensitive!" -f "${CT_WORK_DIR}/FOO"
-CT_DoExecLog DEBUG rm -f "${CT_WORK_DIR}/foo"
+# CT_DoExecLog DEBUG touch "${CT_WORK_DIR}/foo"
+# CT_TestAndAbort "Your file system in '${CT_WORK_DIR}' is *not* case-sensitive!" -f "${CT_WORK_DIR}/FOO"
+# CT_DoExecLog DEBUG rm -f "${CT_WORK_DIR}/foo"
 
 # Check the user is using an existing SHELL to be used by ./configure and Makefiles
 CT_TestOrAbort "The CONFIG_SHELL '${CT_CONFIG_SHELL}' is not valid" -f "${CT_CONFIG_SHELL}" -a -x "${CT_CONFIG_SHELL}"