FLAGS = -fPIC

ifeq (armv7-linux-androideabi,$(TARGET))
	# Reset TARGET variable because armv7 target name used by Rust is not 
	# the same as the target name needed for the CXX toolchain.
	TARGET = arm-linux-androideabi
	FLAGS += -march=armv7-a -mfpu=neon --target=$(TARGET)
endif

ifneq ($(HOST),$(TARGET))
  CXX ?= $(TARGET)-g++
  CC ?= $(TARGET)-gcc
  AR ?= $(TARGET)-ar
else
  CXX ?= g++
  CC ?= gcc
  AR ?= ar
endif

ifeq ($(DEBUG),true)
  FLAGS += -g
else
  FLAGS += -O2
endif

CFLAGS += $(FLAGS)
CXXFLAGS += $(FLAGS)

CONFIGURE_FLAGS = \
	--prefix=$(OUT_DIR) \
	--host=$(TARGET) \
	--enable-static \
	--disable-shared \
	--without-icu \
	--without-freetype \
	--without-glib \
	--with-coretext=auto

all:
	touch -r harfbuzz/configure $(AUTOMAKE_FILES)
	cd $(OUT_DIR) && $(CARGO_MANIFEST_DIR)/harfbuzz/configure $(CONFIGURE_FLAGS) \
		CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" CPPFLAGS="$(CPPFLAGS)"
	cd $(OUT_DIR) && make -j$(NUM_JOBS)
	cd $(OUT_DIR) && make install

# If the timestamp on these files is incorrect (because git does not preserve timestamps)
# then the configure script will incorrectly try to run automake commands to regenerate them.
# We `touch` these files to prevent this.
AUTOMAKE_FILES = $(wildcard \
	harfbuzz/configure.ac \
	harfbuzz/m4/*.m4 \
	harfbuzz/aclocal.m4 \
	harfbuzz/configure \
	harfbuzz/config.h.in \
	harfbuzz/Makefile.* \
	harfbuzz/*/Makefile.* \
	harfbuzz/*/*/Makefile.* \
	harfbuzz/*/*/*/Makefile.* \
	harfbuzz/*/*/*/*/Makefile.* \
	harfbuzz/gtk-doc.make \
	)

.PHONY: all