Added option to remove setjmp.h from generated mock files as not supported on all embedded systems

docs/CMock_Summary.md

@@ -477,6 +477,13 @@ from the defaults. We've tried to specify what the defaults are below.
 
   * default: `['(?:__attribute__\s*\(+.*?\)+)']`
 
+* `:has_setjmp_h`:
+  Some embedded systems don't have <setjmp.h> available. Setting this to false
+  removes references to this header file and the ability to use cexception.
+
+  * default: true
+
+
 * `:subdir`:
   This is a relative subdirectory for your mocks.  Set this to e.g. "sys" in
   order to create a mock for `sys/types.h` in `(:mock_path)/sys/`.

lib/cmock_config.rb

@@ -41,6 +41,7 @@ class CMockConfig
       :array_size_type             => [],
       :array_size_name             => 'size|len',
       :skeleton                    => false,
+      :has_setjmp_h                => true,
 
       # Format to look for inline functions.
       # This is a combination of "static" and "inline" keywords ("static inline", "inline static", "inline", "static")

lib/cmock_generator.rb

@@ -19,6 +19,7 @@ class CMockGenerator
     @ordered = @config.enforce_strict_ordering
     @framework = @config.framework.to_s
     @fail_on_unexpected_calls = @config.fail_on_unexpected_calls
+    @has_setjmp_h = @config.has_setjmp_h
 
     @subdir = @config.subdir
 
@@ -169,7 +170,9 @@ class CMockGenerator
     file << "/* AUTOGENERATED FILE. DO NOT EDIT. */\n" unless functions.empty?
     file << "#include <string.h>\n"
     file << "#include <stdlib.h>\n"
-    file << "#include <setjmp.h>\n"
+    if @has_setjmp_h
+      file << "#include <setjmp.h>\n"
+    end
     file << "#include \"cmock.h\"\n"
     @includes_c_pre_header.each { |inc| file << "#include #{inc}\n" }
     file << "#include \"#{header_file}\"\n"
@@ -205,7 +208,9 @@ class CMockGenerator
   end
 
   def create_extern_declarations(file)
-    file << "extern jmp_buf AbortFrame;\n"
+    if @has_setjmp_h
+      file << "extern jmp_buf AbortFrame;\n"
+    end
     if @ordered
       file << "extern int GlobalExpectCount;\n"
       file << "extern int GlobalVerifyOrder;\n"