diff --git a/libs/esl/Makefile.am b/libs/esl/Makefile.am
index 1b2b4a6014..e0af740b8d 100644
--- a/libs/esl/Makefile.am
+++ b/libs/esl/Makefile.am
@@ -5,8 +5,8 @@ LDFLAGS=-L. $(SYSTEM_LDFLAGS)
 SOLINK=-shared -Xlinker -x
 
 lib_LTLIBRARIES = libesl.la
-libesl_la_CFLAGS    = $(AM_CFLAGS) $(PICKY) $(SYSTEM_CFLAGS) 
-libesl_la_CXXFLAGS  = $(AM_CXXFLAGS) 
+libesl_la_CFLAGS    = $(SWITCH_AM_CFLAGS) $(PICKY) $(SYSTEM_CFLAGS) 
+libesl_la_CXXFLAGS  = $(SWITCH_AM_CXXFLAGS) 
 libesl_la_CPPFLAGS  = -I$(switch_srcdir)/libs/esl/src/include
 libesl_la_LDFLAGS   = -version-info 1:0:0 $(AM_LDFLAGS) -static -no-undefined -L. $(SYSTEM_LDFLAGS)
 libesl_la_SOURCES   = src/esl.c src/esl_event.c src/esl_threadmutex.c src/esl_config.c src/esl_json.c src/esl_buffer.c
@@ -14,6 +14,8 @@ if ENABLE_CPP
 libesl_la_SOURCES += src/esl_oop.cpp
 endif
 
+$(MYLIB): libesl.la
+
 bin_PROGRAMS = fs_cli testclient testserver testserver_fork ivrd 
 
 fs_cli_SOURCES = fs_cli.c
@@ -65,28 +67,28 @@ swigclean: clean
 	$(MAKE) -C managed swigclean
 
 perlmod: $(MYLIB)
-	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C perl
+	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CFLAGS)" CXXFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C perl
 
 phpmod: $(MYLIB)
-	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C php 
+	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CFLAGS)" CXXFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C php 
 
 luamod: $(MYLIB)
-	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C lua
+	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CFLAGS)" CXXFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C lua
 
 pymod: $(MYLIB)
-	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C python
+	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CFLAGS)" CXXFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C python
 
 tclmod: $(MYLIB)
-	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C tcl
+	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CFLAGS)" CXXFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C tcl
 
 rubymod: $(MYLIB)
-	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C ruby
+	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CFLAGS)" CXXFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C ruby
 
 javamod: $(MYLIB)
-	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C java
+	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CFLAGS)" CXXFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C java
 
 managedmod: $(MYLIB)
-	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C managed
+	$(MAKE) MYLIB="../$(MYLIB)" SOLINK="$(SOLINK)" CFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CFLAGS)" CXXFLAGS="-I$(switch_srcdir)/libs/esl/src/include $(SWITCH_AM_CXXFLAGS)" CXX_CFLAGS="$(CXX_CFLAGS)" -C managed
 
 perlmod-install: perlmod
 	$(MAKE) -C perl install