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AC_DEFUN([DOVECOT_WANT_LZ4], [
AS_IF([test "$want_lz4" != "no"], [
AC_CHECK_HEADER(lz4.h, [
AC_CHECK_LIB(lz4, LZ4_compress, [
have_lz4=yes
have_compress_lib=yes
AC_DEFINE(HAVE_LZ4,, [Define if you have lz4 library])
COMPRESS_LIBS="$COMPRESS_LIBS -llz4"
], [
AS_IF([test "$want_lz4" = "yes"], [
AC_ERROR([Can't build with lz4 support: liblz4 not found])
])
])
AC_CHECK_LIB(lz4, LZ4_compress_default, [
AC_DEFINE(HAVE_LZ4_COMPRESS_DEFAULT,,
[Define if you have LZ4_compress_default])
])
], [
AS_IF([test "$want_lz4" = "yes"], [
AC_ERROR([Can't build with lz4 support: lz4.h not found])
])
])
])
])
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