diff --git a/cmake/config.h.cmake b/cmake/config.h.cmake
index b70f8390..96a74f08 100644
--- a/cmake/config.h.cmake
+++ b/cmake/config.h.cmake
@@ -280,10 +280,6 @@
 #define SIGHUP	1
 #endif
 
-# if defined(_MSC_VER) && !defined(inline)
-#define inline __inline
-#endif
-
 #ifdef DBUS_WIN
 #define FD_SETSIZE @FD_SETSIZE@
 #endif
diff --git a/configure.ac b/configure.ac
index 0c5cdfea..c4653c69 100644
--- a/configure.ac
+++ b/configure.ac
@@ -101,7 +101,6 @@ AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
 AC_ISC_POSIX
 AC_HEADER_STDC
-AC_C_INLINE
 AM_PROG_LIBTOOL
 AC_PROG_MKDIR_P
 PKG_PROG_PKG_CONFIG