diff --git a/build.mak.in b/build.mak.in
index 4bc464f8c..80681d961 100644
--- a/build.mak.in
+++ b/build.mak.in
@@ -1,4 +1,3 @@
-export PJDIR := @ac_pjdir@
 include $(PJDIR)/version.mak
 export PJ_DIR := $(PJDIR)
 
@@ -41,19 +40,6 @@ export APP_THIRD_PARTY_EXT :=
 export APP_THIRD_PARTY_LIBS :=
 export APP_THIRD_PARTY_LIB_FILES :=
 
-ifneq (@ac_external_srtp@,0)
-# External SRTP library
-APP_THIRD_PARTY_EXT += -l@ac_external_srtp_lib@
-else
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libsrtp-$(LIB_SUFFIX)
-ifeq ($(PJ_SHARED_LIBRARIES),)
-APP_THIRD_PARTY_LIBS += -lsrtp-$(TARGET_NAME)
-else
-APP_THIRD_PARTY_LIBS += -lsrtp
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libsrtp.$(SHLIB_SUFFIX).$(PJ_VERSION_MAJOR) $(PJ_DIR)/third_party/lib/libsrtp.$(SHLIB_SUFFIX)
-endif
-endif
-
 ifeq (@ac_pjmedia_resample@,libresample)
 APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libresample-$(LIB_SUFFIX)
 ifeq ($(PJ_SHARED_LIBRARIES),)
@@ -70,102 +56,6 @@ APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libresample.$(SHLIB_SUFFI
 endif
 endif
 
-ifneq (@ac_no_gsm_codec@,1)
-ifeq (@ac_external_gsm@,1)
-# External GSM library
-APP_THIRD_PARTY_EXT += -lgsm
-else
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libgsmcodec-$(LIB_SUFFIX)
-ifeq ($(PJ_SHARED_LIBRARIES),)
-APP_THIRD_PARTY_LIBS += -lgsmcodec-$(TARGET_NAME)
-else
-APP_THIRD_PARTY_LIBS += -lgsmcodec
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libgsmcodec.$(SHLIB_SUFFIX).$(PJ_VERSION_MAJOR) $(PJ_DIR)/third_party/lib/libgsmcodec.$(SHLIB_SUFFIX)
-endif
-endif
-endif
-
-ifneq (@ac_no_speex_codec@,1)
-ifeq (@ac_external_speex@,1)
-APP_THIRD_PARTY_EXT += -lspeex -lspeexdsp
-else
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libspeex-$(LIB_SUFFIX)
-ifeq ($(PJ_SHARED_LIBRARIES),)
-APP_THIRD_PARTY_LIBS += -lspeex-$(TARGET_NAME)
-else
-APP_THIRD_PARTY_LIBS += -lspeex
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libspeex.$(SHLIB_SUFFIX).$(PJ_VERSION_MAJOR) $(PJ_DIR)/third_party/lib/libspeex.$(SHLIB_SUFFIX)
-endif
-endif
-endif
-
-ifneq (@ac_no_ilbc_codec@,1)
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libilbccodec-$(LIB_SUFFIX)
-ifeq ($(PJ_SHARED_LIBRARIES),)
-APP_THIRD_PARTY_LIBS += -lilbccodec-$(TARGET_NAME)
-else
-APP_THIRD_PARTY_LIBS += -lilbccodec
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libilbccodec.$(SHLIB_SUFFIX).$(PJ_VERSION_MAJOR) $(PJ_DIR)/third_party/lib/libilbccodec.$(SHLIB_SUFFIX)
-endif
-endif
-
-ifneq (@ac_no_g7221_codec@,1)
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libg7221codec-$(LIB_SUFFIX)
-ifeq ($(PJ_SHARED_LIBRARIES),)
-APP_THIRD_PARTY_LIBS += -lg7221codec-$(TARGET_NAME)
-else
-APP_THIRD_PARTY_LIBS += -lg7221codec
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libg7221codec.$(SHLIB_SUFFIX).$(PJ_VERSION_MAJOR) $(PJ_DIR)/third_party/lib/libg7221codec.$(SHLIB_SUFFIX)
-endif
-endif
-
-ifeq (@ac_external_pa@,1)
-# External PA
-APP_THIRD_PARTY_EXT += -lportaudio
-endif
-
-ifneq (@ac_no_yuv@,1)
-ifeq (@ac_external_yuv@,1)
-APP_THIRD_PARTY_EXT += -lyuv
-else
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libyuv-$(LIB_SUFFIX)
-ifeq ($(PJ_SHARED_LIBRARIES),)
-APP_THIRD_PARTY_LIBS += -lyuv-$(TARGET_NAME)
-else
-APP_THIRD_PARTY_LIBS += -lyuv
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libyuv.$(SHLIB_SUFFIX).$(PJ_VERSION_MAJOR) $(PJ_DIR)/third_party/lib/libyuv.$(SHLIB_SUFFIX)
-endif
-endif
-endif
-
-ifneq (@ac_no_webrtc@,1)
-ifeq (@ac_external_webrtc@,1)
-APP_THIRD_PARTY_EXT += -lwebrtc
-else
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libwebrtc-$(LIB_SUFFIX)
-ifeq ($(PJ_SHARED_LIBRARIES),)
-APP_THIRD_PARTY_LIBS += -lwebrtc-$(TARGET_NAME)
-else
-APP_THIRD_PARTY_LIBS += -lwebrtc
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libwebrtc.$(SHLIB_SUFFIX).$(PJ_VERSION_MAJOR) $(PJ_DIR)/third_party/lib/libwebrtc.$(SHLIB_SUFFIX)
-endif
-endif
-endif
-
-ifneq (@ac_no_webrtc_aec3@,1)
-ifeq (@ac_external_webrtc_aec3@,1)
-APP_THIRD_PARTY_EXT += -lwebrtc-aec3
-else
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libwebrtc-aec3-$(LIB_SUFFIX)
-ifeq ($(PJ_SHARED_LIBRARIES),)
-APP_THIRD_PARTY_LIBS += -lwebrtc-aec3-$(TARGET_NAME)
-else
-APP_THIRD_PARTY_LIBS += -lwebrtc-aec3
-APP_THIRD_PARTY_LIB_FILES += $(PJ_DIR)/third_party/lib/libwebrtc-aec3.$(SHLIB_SUFFIX).$(PJ_VERSION_MAJOR) $(PJ_DIR)/third_party/lib/libwebrtc.$(SHLIB_SUFFIX)
-endif
-endif
-endif
-

 # Additional flags
 @ac_build_mak_vars@