diff options
Diffstat (limited to 'm4/macros/prog_lex.m4')
| -rw-r--r-- | m4/macros/prog_lex.m4 | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/m4/macros/prog_lex.m4 b/m4/macros/prog_lex.m4 new file mode 100644 index 000000000000..43da78a86cdd --- /dev/null +++ b/m4/macros/prog_lex.m4 @@ -0,0 +1,14 @@ +dnl find f/lex, but error if none found +AC_DEFUN_ONCE([AMU_PROG_LEX], +[AC_CHECK_PROGS(LEX, flex lex, :) +if test -z "$LEXLIB" +then + AC_CHECK_LIB(fl, yywrap, LEXLIB="-lfl", + [AC_CHECK_LIB(l, yywrap, LEXLIB="-ll")]) +fi +AC_SUBST(LEXLIB) +if test "x$LEX" != "x:"; then + _AC_PROG_LEX_YYTEXT_DECL +else + AC_MSG_ERROR([cannot find flex/lex -- needed for am-utils]) +fi]) |