1 files changed, 60 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..12a6f92
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,60 @@
+# libhl2hake.so — 32-bit Source Engine plugin.
+#
+#   make            release build (build/release, -O2)
+#   make debug      build/debug with -O0 -g (symbolise crash addresses)
+#   make clean
+#
+# Needs a 32-bit multilib toolchain (g++-multilib on Debian/Ubuntu).
+
+CXX      ?= g++
+OUT      := libhl2hake.so
+SRC      := $(wildcard src/*.cpp)
+ODIR     ?= build/release
+OPT      ?= -O2
+
+CXXFLAGS := -m32 -std=c++17 -Wall -Wextra -Werror -fPIC \
+            -fvisibility=hidden -fno-omit-frame-pointer -pthread \
+            -MMD -MP $(OPT)
+LDFLAGS  := -m32 -shared -pthread -Wl,--no-undefined
+LDLIBS   := -ldl
+
+OBJ := $(patsubst src/%.cpp,$(ODIR)/%.o,$(SRC))
+DEP := $(OBJ:.o=.d)
+
+all: check $(OUT)
+        @file $(OUT)
+        @test -f assets/LiberationSans-Regular.ttf || \
+          echo "warning: assets/ is missing next to the .so; the overlay falls back to system fonts" >&2
+
+# Objects, dependency files and headers are handled by make itself; this only
+# keeps the debug build in its own directory.
+debug:
+        @$(MAKE) --no-print-directory ODIR=build/debug OPT="-O0 -g"
+
+# Always relink. Both configs write the same output file, so without this a
+# plain `make` after `make debug` would keep the debug binary (the .so is newer
+# than the release objects). Linking is sub-second.
+.PHONY: FORCE
+FORCE:
+
+$(OUT): $(OBJ) FORCE
+        $(CXX) $(LDFLAGS) -o $@ $(OBJ) $(LDLIBS)
+
+$(ODIR)/%.o: src/%.cpp | $(ODIR)
+        $(CXX) $(CXXFLAGS) -c $< -o $@
+
+$(ODIR):
+        @mkdir -p $@
+
+# Fail once with a usable message instead of a wall of compiler errors.
+.PHONY: check
+check:
+        @printf 'int main(){return 0;}\n' | \
+          $(CXX) -m32 -x c++ - -o /dev/null 2>/dev/null || \
+          { echo "error: $(CXX) cannot build 32-bit binaries; install g++-multilib" >&2; exit 1; }
+
+.PHONY: all debug clean
+clean:
+        rm -rf build $(OUT)
+
+-include $(DEP)