Fix overlinking (with libpthread) and underlinking (missing libm).

Drop unnecessary cython BR.

python-gmpy2.rpmlintrc

@@ -0,0 +1,8 @@
+# THIS FILE IS FOR WHITELISTING RPMLINT ERRORS AND WARNINGS IN TASKOTRON
+# https://fedoraproject.org/wiki/Taskotron/Tasks/dist.rpmlint#Whitelisting_errors
+
+# The dictionary is missing some technical terms
+addFilter(r'W: spelling-error .* gmpy')
+
+# This package really is a devel package
+addFilter(r'W: devel-file-in-non-devel-package')

python-gmpy2.spec

@@ -3,7 +3,7 @@
 
 Name:           python-%{srcname}
 Version:        2.1.0
-Release:        0.12%{?prerelease:.%{prerelease}}%{?dist}
+Release:        0.13%{?prerelease:.%{prerelease}}%{?dist}
 Summary:        Python interface to GMP, MPFR, and MPC
 
 License:        LGPLv3+
@@ -13,9 +13,8 @@ Source0:        https://github.com/aleaxit/gmpy/archive/%{srcname}-%{version}%{?
 BuildRequires:  gcc
 BuildRequires:  gmp-devel
 BuildRequires:  libmpc-devel
-BuildRequires:  mpfr-devel
+BuildRequires:  pkgconfig(mpfr)
 BuildRequires:  python3-devel
-BuildRequires:  python3dist(cython)
 BuildRequires:  python3dist(setuptools)
 BuildRequires:  python3dist(sphinx)
 
@@ -38,16 +37,13 @@ Summary:        Python 3 interface to GMP, MPFR, and MPC
 Provides:       bundled(jquery)
 %{?python_provide:%python_provide python3-%{srcname}}
 
-# This can be removed when F29 reaches EOL
-Obsoletes:      python2-%{srcname} < 2.1.0-0.6.a4
-Provides:       python2-%{srcname} = %{version}-%{release}
-
 %description -n python3-%{srcname}
 %{common_desc}
 
 %prep
 %autosetup -p0 -n %{srcname}-%{version}%{?prerelease}
 
+# See https://github.com/aleaxit/gmpy/pull/254 for the encoding changes.
 # Fix file encodings.  First the easy one.
 iconv -f ISO8859-1 -t UTF-8 src/gmpy2.c > src/gmpy2.c.utf8
 touch -r src/gmpy2.c src/gmpy2.c.utf8
@@ -64,7 +60,14 @@ sed -i "s/'default'/'classic'/" docs/conf.py
 # Version 2.1.0b3 still calls itself 2.1.0b1
 sed -i "s/b1/b3/" docs/conf.py
 
+# Symbols from the math library are also used
+sed -i "s/'mpfr','gmp'/&,'m'/" setup.py
+
 %build
+# Do not pass -pthread to the compiler or linker
+export CC=gcc
+export LDSHARED="gcc -shared"
+
 %py3_build
 make -C docs html
 
@@ -80,6 +83,10 @@ PYTHONPATH=%{buildroot}%{python3_sitearch} %{__python3} test/runtests.py
 %{python3_sitearch}/%{srcname}*
 
 %changelog
+* Wed Dec 11 2019 Jerry James <loganjerry@gmail.com> - 2.1.0-0.13.b3
+- Fix overlinking (with libpthread) and underlinking (missing libm)
+- Drop unnecessary cython BR
+
 * Wed Oct  9 2019 Jerry James <loganjerry@gmail.com> - 2.1.0-0.12.b3
 - Rebuild for mpfr 4