# Compiler
FC = gfortran

# Build type (default: Release)
BUILD ?= release

# Flags depending on build type
ifeq ($(BUILD),debug)
    FFLAGS = -g -O0
else
    FFLAGS = -O2
endif

# Output folder
OUT = bin

# Target executable
TARGET = event2

# Source files
SRCS = event2_03.f gbook.f

# Executable path
EXE = $(OUT)/$(TARGET)

# Default rule
all: $(EXE)

# Build rule
$(EXE): $(SRCS)
	mkdir -p $(OUT)
	$(FC) $(FFLAGS) -o $(EXE) $(SRCS)

# Convenience targets
debug:
	$(MAKE) BUILD=debug

release:
	$(MAKE) BUILD=release

# Clean rule
clean:
	rm -rf $(OUT)