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-rw-r--r--configure.ac8
1 files changed, 8 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 23d02b5..9d5e059 100644
--- a/configure.ac
+++ b/configure.ac
@@ -115,6 +115,14 @@ if [[ x$GROFF = x ]]; then
AC_MSG_ERROR([GNU roff required!])
fi
+# preconv was added only in Groff v1.20, which is still missig
+# in NetBSD.
+AC_CHECK_PROG(PRECONV, preconv, preconv)
+if [[ x$PRECONV != x ]]; then
+ GROFF_FLAGS="-Kutf-8"
+fi
+AC_SUBST(GROFF_FLAGS)
+
# Doxygen is not necessarily required as long as
# you do not run `make devdoc`.
AC_CHECK_PROG(DOXYGEN, doxygen, doxygen)