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-rw-r--r--openbsc/configure.in2
1 files changed, 2 insertions, 0 deletions
diff --git a/openbsc/configure.in b/openbsc/configure.in
index 6aa68d89e..ff6a466b1 100644
--- a/openbsc/configure.in
+++ b/openbsc/configure.in
@@ -48,6 +48,8 @@ PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.1.19)
dnl checks for header files
AC_HEADER_STDC
+AC_CHECK_HEADERS(dahdi/user.h,,AC_MSG_WARN(DAHDI input driver will not be built))
+
dnl Checks for typedefs, structures and compiler characteristics