From b6de889775a292363446fe147c477d88289d4ff2 Mon Sep 17 00:00:00 2001
From: Pey Lian Lim <2090236+pllim@users.noreply.github.com>
Date: Wed, 20 Mar 2019 11:51:34 -0400
Subject: [PATCH 1/3] MNT: Always compile Cython at build time

---
 MANIFEST.in |  2 +-
 setup.py    | 17 +++++------------
 2 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/MANIFEST.in b/MANIFEST.in
index a24056f..73e95fd 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -3,6 +3,6 @@ include LICENSE_Python.txt
 include README.rst
 include python25.pxd
 include timers.h
-include _line_profiler.c
+exclude _line_profiler.c
 include unset_trace.h
 recursive-include tests *.py
diff --git a/setup.py b/setup.py
index edc096c..9190690 100755
--- a/setup.py
+++ b/setup.py
@@ -1,28 +1,18 @@
-import os
 import sys
 
-# Monkeypatch distutils.
-import setuptools
-
 import distutils.errors
 from distutils.core import setup
 from distutils.extension import Extension
-from distutils.log import warn
 
 try:
     from Cython.Distutils import build_ext
     cmdclass = dict(build_ext=build_ext)
     line_profiler_source = '_line_profiler.pyx'
 except ImportError:
-    cmdclass = {}
-    line_profiler_source = '_line_profiler.c'
-    if not os.path.exists(line_profiler_source):
-        raise distutils.errors.DistutilsError("""\
+    raise distutils.errors.DistutilsError("""\
 You need Cython to build the line_profiler from a git checkout, or
 alternatively use a release tarball from PyPI to build it without Cython.""")
-    else:
-        warn("Could not import Cython. "
-             "Using the available pre-generated C file.")
+
 
 long_description = """\
 line_profiler will profile the time individual lines of code take to execute.
@@ -78,6 +68,9 @@
             'kernprof=kernprof:main',
         ],
     },
+    setup_requires = [
+        'cython',
+    ],
     install_requires = [
         'IPython>=0.13',
     ],

From 3b4350880cd4b829a88acb0be359df4a1ce30cd1 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Wed, 20 Mar 2019 12:24:06 -0400
Subject: [PATCH 2/3] MNT: Add pyproject.toml

---
 pyproject.toml | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 pyproject.toml

diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..3358992
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,6 @@
+[build-system]
+requires = [
+    "setuptools",
+    "wheel",
+    "cython"
+]

From e3cea6a4ea7a7d7ddc05d2cc7b905f6020591083 Mon Sep 17 00:00:00 2001
From: "P. L. Lim" <2090236+pllim@users.noreply.github.com>
Date: Wed, 20 Mar 2019 12:44:37 -0400
Subject: [PATCH 3/3] Add the monkeypatching back in setup

---
 setup.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/setup.py b/setup.py
index 9190690..23fb7f3 100755
--- a/setup.py
+++ b/setup.py
@@ -1,5 +1,8 @@
 import sys
 
+# Monkeypatch distutils.
+import setuptools
+
 import distutils.errors
 from distutils.core import setup
 from distutils.extension import Extension