diff options
Diffstat (limited to 'autoconf/ast_c_define_check.m4')
| -rw-r--r-- | autoconf/ast_c_define_check.m4 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/autoconf/ast_c_define_check.m4 b/autoconf/ast_c_define_check.m4 index adf31223e..52b979110 100644 --- a/autoconf/ast_c_define_check.m4 +++ b/autoconf/ast_c_define_check.m4 @@ -23,7 +23,7 @@ AC_DEFUN([AST_C_DEFINE_CHECK], [ AC_MSG_RESULT(yes) PBX_$1=1 AC_DEFINE([HAVE_$1], 1, [Define if your system has the $1 headers.]) - AC_DEFINE([HAVE_$1_VERSION], $4, [Define $1 headers version]) + m4_ifval([$4], [AC_DEFINE([HAVE_$1_VERSION], $4, [Define $1 headers version])]) ], [ AC_MSG_RESULT(no) ] ) |