--- Makefile	2026-04-20 21:22:04.000000000 +0800
+++ Makefile	2026-05-13 15:20:08.000000000 +0800
@@ -2,37 +2,18 @@
 # Targets: Linux, macOS, FreeBSD, OpenBSD, NetBSD
 
 UNAME_S := $(shell uname -s)
+PREFIX ?= /opt/local
 
-ifeq ($(origin CXX),default)
-    ifeq ($(UNAME_S),Darwin)
-        CXX := clang++
-    else ifeq ($(UNAME_S),FreeBSD)
-        CXX := clang++
-    else ifeq ($(UNAME_S),OpenBSD)
-        CXX := clang++
-    else ifeq ($(UNAME_S),NetBSD)
-        CXX := clang++
-    else
-        CXX := g++
-    endif
-endif
-
-CXXFLAGS = -std=c++17 -O3 -Wall -Wextra -Iinclude
+CXX ?= g++
+CXXFLAGS += -std=c++17 -O3 -Wall -Wextra -Iinclude
 
 # Platform-specific flags
 ifeq ($(UNAME_S),Darwin)
-    # Homebrew curl/openssl on macOS
-    BREW_PREFIX := $(shell brew --prefix 2>/dev/null || echo /opt/homebrew)
-    CURL_PREFIX := $(BREW_PREFIX)/opt/curl
-    SSL_PREFIX  := $(BREW_PREFIX)/opt/openssl@3
-    ifneq ($(wildcard $(CURL_PREFIX)/lib/libcurl.*),)
-        CXXFLAGS  += -I$(CURL_PREFIX)/include -I$(SSL_PREFIX)/include
-        LDFLAGS    = -L$(CURL_PREFIX)/lib -L$(SSL_PREFIX)/lib \
+    CURL_PREFIX ?= $(PREFIX)
+    SSL_PREFIX  ?= $(PREFIX)
+    CXXFLAGS  += -I$(CURL_PREFIX)/include -I$(SSL_PREFIX)/include -DYTFAST_MACOS
+    LDFLAGS    = -L$(CURL_PREFIX)/lib -L$(SSL_PREFIX)/lib \
                      -lcurl -lssl -lcrypto -lpthread
-    else
-        LDFLAGS    = -lcurl -lssl -lcrypto -lpthread
-    endif
-    CXXFLAGS  += -DYTFAST_MACOS
 else ifeq ($(UNAME_S),FreeBSD)
     CXXFLAGS  += -I/usr/local/include -DYTFAST_BSD
     LDFLAGS    = -L/usr/local/lib -lcurl -lssl -lcrypto -lpthread
@@ -69,7 +50,6 @@
 clean:
 	rm -f $(BIN) test/test_ytfast
 
-PREFIX ?= /usr/local
 install: $(BIN)
 	install -d $(DESTDIR)$(PREFIX)/bin
 	install -m 755 $(BIN) $(DESTDIR)$(PREFIX)/bin/$(BIN)