diff --git a/gcc.spec b/gcc.spec
index 9bf86a2..272cf62 100644
--- a/gcc.spec
+++ b/gcc.spec
@@ -101,7 +101,7 @@
 Summary: Various compilers (C, C++, Objective-C, ...)
 Name: gcc
 Version: %{gcc_version}
-Release: %{gcc_release}%{?dist}.1
+Release: %{gcc_release}%{?dist}.2
 # libgcc, libgfortran, libgomp, libstdc++ and crtstuff have
 # GCC Runtime Exception.
 License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ with exceptions and LGPLv2+ and BSD
@@ -150,7 +150,7 @@ BuildRequires: glibc-static
 BuildRequires: zlib-devel, gettext, dejagnu, bison, flex, sharutils
 BuildRequires: texinfo, texinfo-tex, /usr/bin/pod2man
 BuildRequires: systemtap-sdt-devel >= 1.3
-BuildRequires: gmp-devel >= 4.1.2-8, mpfr-devel >= 2.2.1, libmpc-devel >= 0.8.1
+BuildRequires: gmp-devel >= 4.1.2-8, mpfr3-devel >= 2.2.1, libmpc-mpfr3-devel >= 0.8.1
 BuildRequires: python2-devel, python3-devel, /usr/bin/python
 BuildRequires: gcc, gcc-c++
 %if %{build_go}
@@ -726,7 +726,7 @@ This package contains static Go libraries.
 %package plugin-devel
 Summary: Support for compiling GCC plugins
 Requires: gcc = %{version}-%{release}
-Requires: gmp-devel >= 4.1.2-8, mpfr-devel >= 2.2.1, libmpc-devel >= 0.8.1
+Requires: gmp-devel >= 4.1.2-8, mpfr3-devel >= 2.2.1, libmpc-mpfr3-devel >= 0.8.1
 
 %description plugin-devel
 This package contains header files and other support files
@@ -801,6 +801,11 @@ fi
 # This test causes fork failures, because it spawns way too many threads
 rm -f gcc/testsuite/go.test/test/chan/goroutines.go
 
+# Build against mpfr3 and libmpc-mpfr3 so we can build mpfr 4.x
+grep -Frl '<mpfr.h>' | xargs sed -i 's/<mpfr\.h>/<mpfr3.h>/g'
+grep -Frl '<mpc.h>' | xargs sed -i 's/<mpc\.h>/<mpc-mpfr3.h>/g'
+sed -i 's/-lmpc -lmpfr/-lmpc-mpfr3 -lmpfr3/' configure
+
 %build
 
 # Undo the broken autoconf change in recent Fedora versions
@@ -2955,6 +2960,9 @@ end
 %endif
 
 %changelog
+* Tue Oct  8 2019 Jerry James <loganjerry@gmail.com> 9.2.1-1.2
+- Build against mpfr3 and libmpc-mpfr3 so an mpfr 4.x version can be built
+
 * Thu Oct 03 2019 Miro Hrončok <mhroncok@redhat.com> - 9.2.1-1.1
 - Rebuilt for Python 3.8.0rc1 (#1748018)