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-rw-r--r--fs/unicode/Makefile38
1 files changed, 38 insertions, 0 deletions
diff --git a/fs/unicode/Makefile b/fs/unicode/Makefile
new file mode 100644
index 000000000000..d46e9baee285
--- /dev/null
+++ b/fs/unicode/Makefile
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-$(CONFIG_UNICODE) += unicode.o
+obj-$(CONFIG_UNICODE_NORMALIZATION_SELFTEST) += utf8-selftest.o
+
+unicode-y := utf8-norm.o utf8-core.o
+
+$(obj)/utf8-norm.o: $(obj)/utf8data.h
+
+# In the normal build, the checked-in utf8data.h is just shipped.
+#
+# To generate utf8data.h from UCD, put *.txt files in this directory
+# and pass REGENERATE_UTF8DATA=1 from the command line.
+ifdef REGENERATE_UTF8DATA
+
+quiet_cmd_utf8data = GEN $@
+ cmd_utf8data = $< \
+ -a $(srctree)/$(src)/DerivedAge.txt \
+ -c $(srctree)/$(src)/DerivedCombiningClass.txt \
+ -p $(srctree)/$(src)/DerivedCoreProperties.txt \
+ -d $(srctree)/$(src)/UnicodeData.txt \
+ -f $(srctree)/$(src)/CaseFolding.txt \
+ -n $(srctree)/$(src)/NormalizationCorrections.txt \
+ -t $(srctree)/$(src)/NormalizationTest.txt \
+ -o $@
+
+$(obj)/utf8data.h: $(obj)/mkutf8data $(filter %.txt, $(cmd_utf8data)) FORCE
+ $(call if_changed,utf8data)
+
+else
+
+$(obj)/utf8data.h: $(src)/utf8data.h_shipped FORCE
+ $(call if_changed,shipped)
+
+endif
+
+targets += utf8data.h
+hostprogs-y += mkutf8data