Add support for RISC-V (riscv64)

Signed-off-by: David Abdurachmanov <david.abdurachmanov@gmail.com>

Python-3.6.7-riscv-triplets.patch

@@ -0,0 +1,19 @@
+diff --git a/configure.ac b/configure.ac
+index 94b0db0..0da9814 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -846,6 +846,14 @@ cat >> conftest.c <<EOF
+         sparc64-linux-gnu
+ # elif defined(__sparc__)
+         sparc-linux-gnu
++# elif defined(__riscv)
++#  if __riscv_xlen == 32
++        riscv32-linux-gnu
++#  elif __riscv_xlen == 64
++        riscv64-linux-gnu
++#  else
++#   error unknown platform triplet
++#  endif
+ # else
+ #   error unknown platform triplet
+ # endif

python36.spec

@@ -14,7 +14,7 @@ URL: https://www.python.org/
 #  WARNING  When rebasing to a new Python version,
 #           remember to update the python3-docs package as well
 Version: %{pybasever}.7
-Release: 1%{?dist}
+Release: 1.0.riscv64%{?dist}
 License: Python
 
 
@@ -351,6 +351,9 @@ Patch292: 00292-restore-PyExc_RecursionErrorInst-symbol.patch
 # See also: https://bugzilla.redhat.com/show_bug.cgi?id=1489816
 Patch294: 00294-define-TLS-cipher-suite-on-build-time.patch
 
+# Add riscv64-linux-gnu to the triplet detection
+Patch400: Python-3.6.7-riscv-triplets.patch
+
 # (New patches go here ^^^)
 #
 # When adding new patches to "python" and "python3" in Fedora, EL, etc.,
@@ -677,6 +680,8 @@ rm Lib/ensurepip/_bundled/*.whl
 %patch292 -p1
 %patch294 -p1
 
+# riscv64
+%patch400 -p1
 
 # Remove files that should be generated by the build
 # (This is after patching, so that we can use patches directly from upstream)
@@ -1557,6 +1562,9 @@ CheckPython optimized
 # ======================================================
 
 %changelog
+* Fri Nov 23 2018 David Abdurachmanov <david.abdurachmanov@gmail.com> - 3.6.7-1.0.riscv64
+- Add support for RISC-V (riscv64)
+
 * Mon Oct 22 2018 Miro Hrončok <mhroncok@redhat.com> - 3.6.7-1
 - Update to 3.6.7