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AC_DEFUN([AC_TEST_ZSTD_STREAM], [
	AC_MSG_CHECKING([whether zstd supports stream compression])
	AC_LANG_PUSH([C])
	ac_zstd_save_CFLAGS="$CFLAGS"
	CFLAGS="$CFLAGS $ZSTD_CFLAGS"
	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <zstd.h>], [ZSTD_EndDirective op = ZSTD_e_end; ZSTD_compressStream2(NULL, NULL, NULL, op);])],
			  AC_DEFINE(HAVE_ZSTD_STREAM, 1, [Does zstd support stream compression?])
			  AC_MSG_RESULT([yes]), AC_MSG_RESULT([no]))
	CFLAGS=$ac_zstd_save_CFLAGS
	AC_LANG_POP([C])
])