File use-roslyn-vbc.patch of Package mono-basic

diff -uprN mono-basic-4.6/build/rules.make mono-basic-4.6.new/build/rules.make
--- mono-basic-4.6/build/rules.make	2015-04-27 21:35:48.000000000 +0300
+++ mono-basic-4.6.new/build/rules.make	2018-03-24 01:03:30.711203718 +0300
@@ -20,7 +20,7 @@ USE_VBNC_FLAGS = $(LOCAL_VBNC_FLAGS) $(P
 USE_CFLAGS = $(LOCAL_CFLAGS) $(CFLAGS)
 CSCOMPILE = $(MCS) $(USE_MCS_FLAGS)
 CCOMPILE = $(CC) $(USE_CFLAGS)
-BOOTSTRAP_VBNC = MONO_PATH="$(topdir)/class/lib/bootstrap$(PLATFORM_PATH_SEPARATOR)$$MONO_PATH" $(RUNTIME) $(RUNTIME_FLAGS) --debug $(topdir)/class/lib/bootstrap/vbnc.exe
+BOOTSTRAP_VBNC = $(RUNTIME) $(RUNTIME_FLAGS) --debug /usr/lib/mono/4.5/vbc.exe /vbruntime:$(topdir)/class/lib/bootstrap/Microsoft.VisualBasic.dll
 BOOT_COMPILE = $(BOOTSTRAP_VBNC) $(USE_VBNC_FLAGS)
 VBNC = MONO_PATH="$(topdir)/class/lib/net_4_0$(PLATFORM_PATH_SEPARATOR)$$MONO_PATH" $(RUNTIME) $(RUNTIME_FLAGS) --debug $(topdir)/class/lib/net_4_0/vbnc.exe
 INSTALL = $(SHELL) $(topdir)/install-sh