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CC = gcc
CFLAGS = -Wall -Wextra -O2
LDFLAGS = -ldl
SDL_FLAGS = $(shell pkg-config --cflags --libs sdl2)
all: libfbgl_preload.so fbgl_viewer
libfbgl_preload.so: fbgl_preload.c fbgl_preload.h
$(CC) -shared -fPIC $(CFLAGS) -o $@ fbgl_preload.c $(LDFLAGS)
fbgl_viewer: fbgl_viewer.c
$(CC) $(CFLAGS) -o $@ $< $(SDL_FLAGS)
clean:
rm -f libfbgl_preload.so fbgl_viewer
install: all
@echo "Built successfully!"
@echo ""
@echo "Usage:"
@echo " 1. Terminal 1: ./fbgl_viewer"
@echo " 2. Terminal 2: LD_PRELOAD=./libfbgl_preload.so ./your_program"
.PHONY: all clean install
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