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-rw-r--r--source4/heimdal_build/config.m448
1 files changed, 48 insertions, 0 deletions
diff --git a/source4/heimdal_build/config.m4 b/source4/heimdal_build/config.m4
index d53c8599e8..18ecbb75cd 100644
--- a/source4/heimdal_build/config.m4
+++ b/source4/heimdal_build/config.m4
@@ -180,8 +180,56 @@ SMB_ENABLE(KERBEROS_LIB, NO)
SMB_ENABLE(asn1_compile, NO)
SMB_ENABLE(compile_et, NO)
+#
+# We need bison -y and flex in new versions
+# Otherwise we get random runtime failures
+#
+LEX_YACC_COMBINATIONS=""
+LEX_YACC_COMBINATIONS="$LEX_YACC_COMBINATIONS flex-2.5.33:bison-2.3"
+
AC_PROG_LEX
+LEX_BASENAME=`basename "$LEX"`
+if test x"$LEX_BASENAME" = x"flex"; then
+ # "flex 2.5.33"
+ FLEX_VERSION=`$LEX --version | cut -d ' ' -f2`
+ AC_MSG_CHECKING(flex version)
+ AC_MSG_RESULT($FLEX_VERSION)
+ FLEX_MAJOR=`echo $FLEX_VERSION | cut -d '.' -f1`
+ FLEX_MINOR=`echo $FLEX_VERSION | cut -d '.' -f2`
+ FLEX_RELEASE=`echo $FLEX_VERSION | cut -d '.' -f3`
+
+ LEX_VERSION="flex-$FLEX_MAJOR.$FLEX_MINOR.$FLEX_RELEASE"
+fi
+
AC_PROG_YACC
+YACC_BASENAME=`basename "$YACC"`
+if test x"$YACC_BASENAME" = x"bison -y"; then
+ # bison (GNU Bison) 2.3
+ BISON_VERSION=`$YACC --version | head -1 | cut -d ' ' -f4`
+ AC_MSG_CHECKING(bison version)
+ AC_MSG_RESULT($BISON_VERSION)
+ BISON_MAJOR=`echo $BISON_VERSION | cut -d '.' -f1`
+ BISON_MINOR=`echo $BISON_VERSION | cut -d '.' -f2`
+
+ YACC_VERSION="bison-$BISON_MAJOR.$BISON_MINOR"
+fi
+
+AC_MSG_CHECKING(working LEX YACC combination)
+LEX_YACC="no"
+if test x"$LEX_VERSION" != x"" -a x"$YACC_VERSION" != x""; then
+ V="$LEX_VERSION:$YACC_VERSION"
+ for C in $LEX_YACC_COMBINATIONS; do
+ if test x"$V" = x"$C"; then
+ LEX_YACC=$V
+ break;
+ fi
+ done
+fi
+if test x"$LEX_YACC" = x"no"; then
+ LEX=false
+ YACC=false
+fi
+AC_MSG_RESULT($LEX_YACC)
# Portions of heimdal kerberos are unpacked into source/heimdal
# of the samba source tree.