4 files changed, 78 insertions, 34 deletions
diff --git a/lib/.gitignore b/lib/.gitignore
index 3e4f5ff..dbfe1f3 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -158,3 +158,13 @@
 
 # Files generated by "make" and distributed (i.e. kept by "make distclean").
 /libunistring.sym
+/attribute.h
+/inttypes.in.h
+/iswdigit.c
+/iswxdigit.c
+/lc-charset-dispatch.c
+/lc-charset-dispatch.h
+/mbrtowc-impl-utf8.h
+/mbrtowc-impl.h
+/mbtowc-lock.c
+/mbtowc-lock.h
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 3798a0a..6136ced 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -163,18 +163,7 @@ CLEANFILES       += unistring/iconveh.h
 nobase_nodist_include_HEADERS += unistring/version.h
 
 # unistring/cdefs.h is not public, but is included by other header files.
-nobase_nodist_include_HEADERS += unistring/cdefs.h
-unistring/cdefs.h : unistring/cdefs.in.h $(UNUSED_PARAMETER_H)
-	@MKDIR_P@ unistring
-	rm -f $@-t $@
-	sed -e '/definition of _GL_UNUSED_PARAMETER/r $(UNUSED_PARAMETER_H)' \
-	    < $(srcdir)/unistring/cdefs.in.h \
-	    > $@-t
-	mv $@-t $@
-BUILT_SOURCES    += unistring/cdefs.h
-MOSTLYCLEANFILES += unistring/cdefs.h-t
-CLEANFILES       += unistring/cdefs.h
-EXTRA_DIST       += unistring/cdefs.in.h
+nobase_include_HEADERS += unistring/cdefs.h
 
 # unistring/woe32dll.h is not public, but is included by other header files.
 nobase_nodist_include_HEADERS += unistring/woe32dll.h
diff --git a/lib/unistring/cdefs.h b/lib/unistring/cdefs.h
new file mode 100644
index 0000000..502da17
--- /dev/null
+++ b/lib/unistring/cdefs.h
@@ -0,0 +1,67 @@
+/* Common macro definitions for C include files.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU Lesser General Public License as published
+   by the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+#ifndef _UNISTRING_CDEFS_H
+#define _UNISTRING_CDEFS_H
+
+/* The definition of _GL_UNUSED_PARAMETER is copied here.  */
+/* A C macro for declaring that specific function parameters are not used.
+   Copyright (C) 2008-2020 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or
+   modify it under the terms of either:
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at your
+       option) any later version.
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at your
+       option) any later version.
+
+   or both in parallel, as here.
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* _GL_UNUSED_PARAMETER is a marker that can be appended to function parameter
+   declarations for parameters that are not used.  This helps to reduce
+   warnings, such as from GCC -Wunused-parameter.  The syntax is as follows:
+       type param _GL_UNUSED_PARAMETER
+   or more generally
+       param_decl _GL_UNUSED_PARAMETER
+   For example:
+       int param _GL_UNUSED_PARAMETER
+       int *(*param)(void) _GL_UNUSED_PARAMETER
+   Other possible, but obscure and discouraged syntaxes:
+       int _GL_UNUSED_PARAMETER *(*param)(void)
+       _GL_UNUSED_PARAMETER int *(*param)(void)
+ */
+#ifndef _GL_UNUSED_PARAMETER
+# if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
+#  define _GL_UNUSED_PARAMETER __attribute__ ((__unused__))
+# else
+#  define _GL_UNUSED_PARAMETER
+# endif
+#endif
+
+#endif /* _UNISTRING_CDEFS_H */
diff --git a/lib/unistring/cdefs.in.h b/lib/unistring/cdefs.in.h
deleted file mode 100644
index 838f8c1..0000000
--- a/lib/unistring/cdefs.in.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Common macro definitions for C include files.
-   Copyright (C) 2009 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU Lesser General Public License as published
-   by the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public License
-   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-#ifndef _UNISTRING_CDEFS_H
-#define _UNISTRING_CDEFS_H
-
-/* The definition of _GL_UNUSED_PARAMETER is copied here.  */
-
-#endif /* _UNISTRING_CDEFS_H */