Add missing checks in m4/ and update configure.ac.

[tinc] / m4 / libevent.m4

diff --git a/m4/libevent.m4 b/m4/libevent.m4
new file mode 100644 (file)
index 0000000..58f5fab
--- /dev/null
+++ b/m4/libevent.m4
@@ -0,0 +1,33 @@
+dnl Check to find the libevent headers/libraries
+
+AC_DEFUN([tinc_LIBEVENT],
+[
+  AC_ARG_WITH(libevent,
+    AS_HELP_STRING([--with-libevent=DIR], [libevent base directory, or:]),
+    [libevent="$withval"
+     CPPFLAGS="$CPPFLAGS -I$withval/include"
+     LDFLAGS="$LDFLAGS -L$withval/lib"]
+  )
+
+  AC_ARG_WITH(libevent-include,
+    AS_HELP_STRING([--with-libevent-include=DIR], [libevent headers directory]),
+    [libevent_include="$withval"
+     CPPFLAGS="$CPPFLAGS -I$withval"]
+  )
+
+  AC_ARG_WITH(libevent-lib,
+    AS_HELP_STRING([--with-libevent-lib=DIR], [libevent library directory]),
+    [libevent_lib="$withval"
+     LDFLAGS="$LDFLAGS -L$withval"]
+  )
+
+  AC_CHECK_HEADERS(event.h,
+    [],
+    [AC_MSG_ERROR("libevent headers files not found."); break]
+  )
+
+  AC_CHECK_LIB(event, event_init,
+    [LIBS="$LIBS -levent"],
+    [AC_MSG_ERROR("libevent library not found."); break]
+  )
+])