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-rw-r--r--m4/pdns_check_ragel.m48
1 files changed, 8 insertions, 0 deletions
diff --git a/m4/pdns_check_ragel.m4 b/m4/pdns_check_ragel.m4
new file mode 100644
index 0000000..f06c7d7
--- /dev/null
+++ b/m4/pdns_check_ragel.m4
@@ -0,0 +1,8 @@
+AC_DEFUN([PDNS_CHECK_RAGEL], [
+ AC_CHECK_PROG([RAGEL], [ragel], [ragel])
+ if test "x$RAGEL" = "x"; then
+ if test ! -f "${srcdir}/$1"; then
+ AC_MSG_ERROR([ragel is missing and you don't have ${srcdir}/$1. Install ragel or download sources from $2])
+ fi
+ fi
+])