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-rw-r--r--gr-blocks/lib/ConfigChecks.cmake1
1 files changed, 0 insertions, 1 deletions
diff --git a/gr-blocks/lib/ConfigChecks.cmake b/gr-blocks/lib/ConfigChecks.cmake
index d359a54d95..3356cf9e1a 100644
--- a/gr-blocks/lib/ConfigChecks.cmake
+++ b/gr-blocks/lib/ConfigChecks.cmake
@@ -28,7 +28,6 @@ ENDIF(MSVC)
GR_CHECK_HDR_N_DEF(sys/time.h HAVE_SYS_TIME_H)
GR_CHECK_HDR_N_DEF(sys/types.h HAVE_SYS_TYPES_H)
GR_CHECK_HDR_N_DEF(sys/socket.h HAVE_SYS_SOCKET_H)
-GR_CHECK_HDR_N_DEF(io.h HAVE_IO_H)
GR_CHECK_HDR_N_DEF(sys/mman.h HAVE_SYS_MMAN_H)
GR_CHECK_HDR_N_DEF(sys/ipc.h HAVE_SYS_IPC_H)
GR_CHECK_HDR_N_DEF(sys/shm.h HAVE_SYS_SHM_H)