X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-psi;a=blobdiff_plain;f=m4%2Fpsi%2Fpsi.m4;h=63ed1942ed7cced3ee09dd9d0f5945a7208d8ad3;hp=4012ec1c782e5e24d45718a29a6d64a41afbd077;hb=2142a81bf99fef674994b19afc40fab52310fcc1;hpb=fc83f6405488f331639683dbe691a99b0b069cbf

diff --git a/m4/psi/psi.m4 b/m4/psi/psi.m4
index 4012ec1..63ed194 100644
--- a/m4/psi/psi.m4
+++ b/m4/psi/psi.m4
@@ -294,7 +294,10 @@ dnl PSI_LEMON()
 dnl Declare $LEMON precious, and check for a `lemon` in $PATH.
 AC_DEFUN(PSI_LEMON, [
 	AC_ARG_VAR(LEMON, The lemon parser generator of the SQLite project)
-	AC_PATH_PROG(LEMON, lemon, ./lemon)
+	if test -z "$LEMON"
+	then
+		AC_PATH_PROG(LEMON, lemon, ./lemon)
+	fi
 	PHP_SUBST(LEMON)
 ])