diff --git a/extern/cloop/Makefile b/extern/cloop/Makefile
index 08516c2..1573dc2 100644
--- a/extern/cloop/Makefile
+++ b/extern/cloop/Makefile
@@ -6,7 +6,7 @@ TARGET	:= release
 
 CC	:= $(CC)
 CXX	:= $(CXX)
-LD	:= $(CXX)
+LD	:= $(CXX) $(LDFLAGS)
 
 SRC_DIR		:= src
 BUILD_DIR	:= build
@@ -27,8 +27,9 @@ SRCS_CPP := $(foreach sdir,$(SRC_DIRS),$(wildcard $(sdir)/*.cpp))
 OBJS_C := $(patsubst $(SRC_DIR)/%.c,$(OBJ_DIR)/%.o,$(SRCS_C))
 OBJS_CPP := $(patsubst $(SRC_DIR)/%.cpp,$(OBJ_DIR)/%.o,$(SRCS_CPP))
 
-C_FLAGS := -ggdb -fPIC -MMD -MP -W -Wall -Wno-unused-parameter
-CXX_FLAGS := $(C_FLAGS)
+COMMON_C_FLAGS := -ggdb -fPIC -MMD -MP -W -Wall -Wno-unused-parameter
+C_FLAGS := $(COMMON_C_FLAGS) $(CFLAGS) $(CPPFLAGS)
+CXX_FLAGS := $(COMMON_C_FLAGS) $(CXXFLAGS) $(CPPFLAGS)
 FPC_FLAGS := -Mdelphi
 
 ifeq ($(shell uname),FreeBSD)
diff --git a/extern/btyacc/Makefile b/extern/btyacc/Makefile
index f432965..52d8443 100644
--- a/extern/btyacc/Makefile
+++ b/extern/btyacc/Makefile
@@ -12,7 +12,7 @@ HDRS	      = defs.h mstring.h
 # across all of our supported compilers/platforms.
 
 # Vanilla CFLAGS
-CFLAGS=
+CFLAGS=-fPIE
 
 # No LDFLAGS
 #LDFLAGS=