--- Makefile.orig	2026-03-10 03:34:23.000000000 +0000
+++ Makefile	2026-03-17 16:26:48.654370000 +0000
@@ -2,6 +2,8 @@
 DIR_SRC := ./src
 DIR_OBJ := ./obj
 
+STRIP ?= strip
+
 PREFIX ?= /usr/local
 BINDIR ?= $(PREFIX)/bin
 INCLUDE_DIRS ?=
@@ -15,26 +17,29 @@
 BIN_TARGET := ${TARGET}
 
 CXX ?= g++
-CXXFLAGS := -std=c++11 -pthread -g -O3 -MD -MP -I. -I${DIR_INC} $(foreach includedir,$(INCLUDE_DIRS),-I$(includedir)) ${CXXFLAGS}
+CXXFLAGS ?= -g -O3 -MD -MP
+CXXFLAGS += -std=c++11 -I. -I${DIR_INC} $(foreach includedir,$(INCLUDE_DIRS),-I$(includedir))
 LIBS := -lisal -ldeflate -lhwy -lpthread
 
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Linux)
-  # Linux: fully static binary
-  LD_FLAGS := $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) -static -Wl,--no-as-needed -pthread $(LIBS) $(LD_FLAGS)
+# Linux: fully static binary
+LD_FLAGS := $(LDFLAGS) $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) -static -Wl,--no-as-needed -pthread $(LIBS)
+else ifeq ($(UNAME_S),Darwin)
+# macOS: link 3rd-party libs statically via .a when available, fallback to dynamic
+FIND_STATIC = $(firstword $(foreach d,$(LIBRARY_DIRS),$(wildcard $(d)/lib$(1).a)) $(wildcard /usr/local/lib/lib$(1).a /opt/homebrew/lib/lib$(1).a))
+STATIC_LIBS :=
+DYNAMIC_LIBS :=
+$(foreach lib,isal deflate hwy,\
+  $(if $(call FIND_STATIC,$(lib)),\
+    $(eval STATIC_LIBS += $(call FIND_STATIC,$(lib))),\
+    $(eval DYNAMIC_LIBS += -l$(lib))))
+LD_FLAGS := $(LDFLAGS) $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) $(STATIC_LIBS) $(DYNAMIC_LIBS) -lpthread
 else
-  # macOS: link 3rd-party libs statically via .a when available, fallback to dynamic
-  FIND_STATIC = $(firstword $(foreach d,$(LIBRARY_DIRS),$(wildcard $(d)/lib$(1).a)) $(wildcard /usr/local/lib/lib$(1).a /opt/homebrew/lib/lib$(1).a))
-  STATIC_LIBS :=
-  DYNAMIC_LIBS :=
-  $(foreach lib,isal deflate hwy,\
-    $(if $(call FIND_STATIC,$(lib)),\
-      $(eval STATIC_LIBS += $(call FIND_STATIC,$(lib))),\
-      $(eval DYNAMIC_LIBS += -l$(lib))))
-  LD_FLAGS := $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) $(STATIC_LIBS) $(DYNAMIC_LIBS) -lpthread $(LD_FLAGS)
+# Other Unix-like systems (e.g. FreeBSD): use normal dynamic linking
+LD_FLAGS := $(LDFLAGS) $(foreach librarydir,$(LIBRARY_DIRS),-L$(librarydir)) $(LIBS)
 endif
 
-
 ${BIN_TARGET}:${OBJ}
 	$(CXX) $(OBJ) -o $@ $(LD_FLAGS)
 
@@ -47,8 +52,16 @@
 	@rm -rf $(DIR_OBJ)
 	@rm -f $(TARGET)
 
+# Respect DESTDIR for staged installs (used by most package managers).
+# DESTDIR is empty by default, so this will install directly to BINDIR
+# unless DESTDIR is supplied by the user.
 install:
-	install $(TARGET) $(BINDIR)/$(TARGET)
+	mkdir -p $(DESTDIR)$(BINDIR)
+	install $(TARGET) $(DESTDIR)$(BINDIR)
 	@echo "Installed."
 
+# Many package managers use install-strip target if debugging is not enabled
+install-strip: install
+	$(STRIP) $(DESTDIR)$(BINDIR)/$(TARGET)
+
 -include $(OBJ:.o=.d)