detect Shell to be used as shebang for profile, exec and dbg scripts

Signed-off-by: Ivailo Monev <xakepa10@laimg.moc>

CMakeLists.txt

@@ -82,6 +82,12 @@ elseif(CMAKE_HOST_SYSTEM_PROCESSOR)
     string(TOLOWER "${CMAKE_HOST_SYSTEM_PROCESSOR}" KATIE_PROCESSOR)
 endif()
 
+# used as shebang for profile, exec and dbg scripts
+find_program(KATIE_SHELL NAMES sh dash mksh ksh ash)
+if(NOT KATIE_SHELL)
+    message(FATAL_ERROR "Could not detect shell, supported are: sh, dash, mksh, ksh and ash")
+endif()
+
 # components and tools that will be build, changed depending on the requirements availability
 # NOTE: excluding DesignerComponents as it was never used as public component, currently only
 # used by the the designer tool. if it is ever needed for something it can just be added here

cmake/dbg.sh.cmake

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!@KATIE_SHELL@
 
 set -e
 

cmake/exec.sh.cmake

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!@KATIE_SHELL@
 
 set -e
 

cmake/profile.sh.cmake

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!@KATIE_SHELL@
 
 # NOTE: safe as in does not append if already in the variable
 safe_path_append() {