diff --git a/fix_versioning_libunwind_1.2.1.patch b/fix_versioning_libunwind_1.2.1.patch
new file mode 100644
index 0000000..ca810e6
--- /dev/null
+++ b/fix_versioning_libunwind_1.2.1.patch
@@ -0,0 +1,28 @@
+Index: libunwind-1.2.1/configure.ac
+===================================================================
+--- libunwind-1.2.1.orig/configure.ac
++++ libunwind-1.2.1/configure.ac
+@@ -1,6 +1,6 @@
+ define(pkg_major, 1)
+-define(pkg_minor, 2.1)
+-define(pkg_extra, )
++define(pkg_minor, 2)
++define(pkg_extra, 1)
+ define(pkg_maintainer, libunwind-devel@nongnu.org)
+ define(mkvers, $1.$2$3)
+ dnl Process this file with autoconf to produce a configure script.
+Index: libunwind-1.2.1/configure
+===================================================================
+--- libunwind-1.2.1.orig/configure
++++ libunwind-1.2.1/configure
+@@ -17376,8 +17376,8 @@ arch="$target_arch"
+ ARCH=`echo $target_arch | tr a-z A-Z`
+ 
+ PKG_MAJOR=1
+-PKG_MINOR=2.1
+-PKG_EXTRA=
++PKG_MINOR=2
++PKG_EXTRA=1
+ PKG_MAINTAINER=libunwind-devel@nongnu.org
+ 
+ old_LIBS="$LIBS"
diff --git a/libunwind.changes b/libunwind.changes
index 10f8082..ccdb62f 100644
--- a/libunwind.changes
+++ b/libunwind.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Sun Feb 18 18:29:20 UTC 2018 - ronisbr@gmail.com
+
+- Add patch `fix_versioning_libunwind_1.2.1.patch`.
+  * This patch fixes the upstream bug gh#libunwind/libunwind#30.
+    This bug was causing the julia build process to fail.
+    NOTE: This patch shall be removed in the next version of
+    libunwind.
+
 -------------------------------------------------------------------
 Fri Feb  2 11:52:05 UTC 2018 - tchvatal@suse.com
 
diff --git a/libunwind.spec b/libunwind.spec
index f958a77..ff23c81 100644
--- a/libunwind.spec
+++ b/libunwind.spec
@@ -28,6 +28,8 @@ Source0:        http://download.savannah.gnu.org/releases/%{name}/%{name}-%{real
 Source1:        http://download.savannah.gnu.org/releases/%{name}/%{name}-%{realver}.tar.gz.sig
 Source2:        %{name}.keyring
 Source3:        baselibs.conf
+# PATCH-FIX-UPSTREAM fix_versioning_libunwind_1.2.1.patch gh#libunwind/libunwind#30 ronisbr@gmail.com -- libunwind 1.2.1 UNW_VERSION_MINOR is not an integer.
+Patch0:         fix_versioning_libunwind_1.2.1.patch
 BuildRequires:  gcc-c++
 BuildRequires:  lzma-devel
 BuildRequires:  pkgconfig
@@ -49,6 +51,7 @@ call-chain of a program.
 
 %prep
 %setup -q -n %{name}-%{realver}
+%patch0 -p1
 
 %build
 %configure \