diff --git a/config.macosx-bigsur b/config.macosx-bigsur
index 236f58e5..e76deece 100644
--- a/config.macosx-bigsur
+++ b/config.macosx-bigsur
@@ -1,10 +1,10 @@
 COMPILE_OPTS =		$(INCLUDES) -I. -I/usr/local/include $(EXTRA_LDFLAGS) -DBSD=1 -O -DSOCKLEN_T=socklen_t -DHAVE_SOCKADDR_LEN=1 -DTIME_BASE=int -DNEED_XLOCALE_H=1
 C =			c
 C_COMPILER =		cc
-C_FLAGS =		$(COMPILE_OPTS)
+C_FLAGS =		$(COMPILE_OPTS) $(CPPFLAGS) $(CFLAGS)
 CPP =			cpp
 CPLUSPLUS_COMPILER =	c++
-CPLUSPLUS_FLAGS =	$(COMPILE_OPTS) -Wall
+CPLUSPLUS_FLAGS =	$(COMPILE_OPTS) -Wall $(CPPFLAGS) $(CXXFLAGS)
 OBJ =			o
 LINK =			c++ -o 
 LINK_OPTS =		-L. -L/usr/local/ssl/lib
diff --git a/config.macosx-catalina b/config.macosx-catalina
index 972757ba..5a6cd723 100644
--- a/config.macosx-catalina
+++ b/config.macosx-catalina
@@ -1,10 +1,10 @@
 COMPILE_OPTS =		$(INCLUDES) -I. -I/usr/local/include $(EXTRA_LDFLAGS) -DBSD=1 -O -DSOCKLEN_T=socklen_t -DHAVE_SOCKADDR_LEN=1 -DTIME_BASE=int -DNEED_XLOCALE_H=1
 C =			c
 C_COMPILER =		cc
-C_FLAGS =		$(COMPILE_OPTS)
+C_FLAGS =		$(COMPILE_OPTS) $(CPPFLAGS) $(CFLAGS)
 CPP =			cpp
 CPLUSPLUS_COMPILER =	c++
-CPLUSPLUS_FLAGS =	$(COMPILE_OPTS) -Wall
+CPLUSPLUS_FLAGS =	$(COMPILE_OPTS) -Wall $(CPPFLAGS) $(CXXFLAGS)
 OBJ =			o
 LINK =			c++ -o 
 LINK_OPTS =		-L.
diff --git a/config.macosx-no-openssl b/config.macosx-no-openssl
index 3b5485fd..0991c485 100644
--- a/config.macosx-no-openssl
+++ b/config.macosx-no-openssl
@@ -1,10 +1,10 @@
 COMPILE_OPTS =		$(INCLUDES) -I. -I/usr/local/include $(EXTRA_LDFLAGS) -DBSD=1 -O -DSOCKLEN_T=socklen_t -DHAVE_SOCKADDR_LEN=1 -DTIME_BASE=int -DNEED_XLOCALE_H=1 -DNO_OPENSSL=1
 C =			c
 C_COMPILER =		cc
-C_FLAGS =		$(COMPILE_OPTS)
+C_FLAGS =		$(COMPILE_OPTS) $(CPPFLAGS) $(CFLAGS)
 CPP =			cpp
 CPLUSPLUS_COMPILER =	c++
-CPLUSPLUS_FLAGS =	$(COMPILE_OPTS) -Wall
+CPLUSPLUS_FLAGS =	$(COMPILE_OPTS) -Wall $(CPPFLAGS) $(CXXFLAGS)
 OBJ =			o
 LINK =			c++ -o 
 LINK_OPTS =		-L.