diff --git a/package/libserial/0002-SerialPort.cpp-don-t-use-high-baudrates-when-not-ava.patch b/package/libserial/0002-SerialPort.cpp-don-t-use-high-baudrates-when-not-ava.patch
new file mode 100644
index 0000000000..4f97f598c4
--- /dev/null
+++ b/package/libserial/0002-SerialPort.cpp-don-t-use-high-baudrates-when-not-ava.patch
@@ -0,0 +1,53 @@
+From fc0f031563146b91d255c752a61624f6dd3c14d4 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Tue, 15 Jan 2019 08:33:27 +0100
+Subject: [PATCH] SerialPort.cpp: don't use high baudrates when not available
+
+On certain architectures (namely Sparc), the maximum baud rate exposed
+by the kernel headers is B2000000. Therefore, the current libserial
+code doesn't build for the Sparc and Sparc64 architectures due to
+this.
+
+In order to address this problem, this patch tests the value of
+__MAX_BAUD. If it's higher than B2000000 then we assume we're on an
+architecture that supports all baud rates up to B4000000. Otherwise,
+we simply don't support the baud rates above B2000000.
+
+Fixes build failures such as:
+
+SerialPort.cpp: In member function 'int LibSerial::SerialPort::Implementation::GetBitRate(const LibSerial::BaudRate&) const':
+SerialPort.cpp:1226:14: error: 'BAUD_2000000' is not a member of 'LibSerial::BaudRate'
+         case BaudRate::BAUD_2000000:
+
+Fixes:
+ - http://autobuild.buildroot.org/results/63ba95b6786464fa8e75af64593010df84530079
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Upstream status: https://github.com/crayzeewulf/libserial/pull/127]
+---
+ src/SerialPort.cpp | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/SerialPort.cpp b/src/SerialPort.cpp
+index e3240eb..18daac0 100644
+--- a/src/SerialPort.cpp
++++ b/src/SerialPort.cpp
+@@ -1223,6 +1223,7 @@ namespace LibSerial
+             baud_rate_as_int = 1500000 ;
+             break ;
+ 
++#if __MAX_BAUD > B2000000
+         case BaudRate::BAUD_2000000:
+             baud_rate_as_int = 2000000 ;
+             break ;
+@@ -1242,6 +1243,7 @@ namespace LibSerial
+         case BaudRate::BAUD_4000000:
+             baud_rate_as_int = 4000000 ;
+             break ;
++#endif /* __MAX_BAUD */
+         default:
+             // If an incorrect baud rate was specified, throw an exception.
+             throw std::runtime_error(ERR_MSG_INVALID_BAUD_RATE) ;
+-- 
+2.14.1
+