diff --git a/320.patch b/320.patch
new file mode 100644
index 0000000..5838476
--- /dev/null
+++ b/320.patch
@@ -0,0 +1,41 @@
+--- pkg/src/convert.c	2019/11/20 08:14:53	319
++++ pkg/src/convert.c	2019/12/05 15:40:47	320
+@@ -6,7 +6,8 @@
+ /* for imax2() */
+ 
+ #include "Rmpfr_utils.h"
++extern
+ #include "Syms.h"
+ 
+ 
+ /*------------------------------------------------------------------------*/
+--- pkg/src/Ops.c	2019/11/20 08:14:53	319
++++ pkg/src/Ops.c	2019/12/05 15:40:47	320
+@@ -10,6 +10,7 @@
+ /* imax2() */
+ 
+ #include "Rmpfr_utils.h"
++extern
+ #include "Syms.h"
+ 
+ 
+--- pkg/src/Summary.c	2019/11/20 08:14:53	319
++++ pkg/src/Summary.c	2019/12/05 15:40:47	320
+@@ -11,6 +11,7 @@
+ 
+ 
+ #include "Rmpfr_utils.h"
++extern
+ #include "Syms.h"
+ 
+ /*------------------------------------------------------------------------*/
+--- pkg/src/utils.c	2019/11/20 08:14:53	319
++++ pkg/src/utils.c	2019/12/05 15:40:47	320
+@@ -6,6 +6,7 @@
+ /* imax2() */
+ 
+ #include "Rmpfr_utils.h"
++extern
+ #include "Syms.h"
+ 
+ //Dbg: #define DEBUG_Rmpfr
diff --git a/R-Rmpfr.spec b/R-Rmpfr.spec
index 1d91878..5f30110 100644
--- a/R-Rmpfr.spec
+++ b/R-Rmpfr.spec
@@ -7,12 +7,14 @@
 
 Name:             R-%{packname}
 Version:          0.7.2
-Release:          5%{?dist}
+Release:          6%{?dist}
 Summary:          R MPFR - Multiple Precision Floating-Point Reliable
 
 License:          GPLv2+
 URL:              https://CRAN.R-project.org/package=%{packname}
 Source0:          https://cran.r-project.org/src/contrib/%{packname}_%{packvers}.tar.gz
+# https://r-forge.r-project.org/scm/viewvc.php?view=rev&root=rmpfr&revision=320
+Patch0001:        320.patch
 
 # Here's the R view of the dependencies world:
 # Depends:   R-gmp >= 0.5-8
@@ -50,6 +52,10 @@ Precision Floating-Point Reliable) Library which itself is based on the
 %prep
 %setup -q -c -n %{packname}
 
+pushd %{packname}
+%patch0001 -p1
+popd
+
 
 %build
 
@@ -87,6 +93,9 @@ _R_CHECK_FORCE_SUGGESTS_=0 %{_bindir}/R CMD check %{packname}
 
 
 %changelog
+* Sat Feb 01 2020 Elliott Sales de Andrade <quantum.analyst@gmail.com> - 0.7.2-6
+- Backport fix for -fno-common change
+
 * Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.7.2-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild