diff --git a/.github/workflows/cibuildwheel.yml b/.github/workflows/cibuildwheel.yml
index 5dd2d0dea942..f484793f1450 100644
--- a/.github/workflows/cibuildwheel.yml
+++ b/.github/workflows/cibuildwheel.yml
@@ -39,6 +39,7 @@ jobs:
CIBW_MANYLINUX_X86_64_IMAGE: manylinux1
CIBW_MANYLINUX_I686_IMAGE: manylinux1
CIBW_BEFORE_BUILD: pip install numpy==1.15
+ MPL_DISABLE_FH4: "yes"
- name: Build wheels for CPython 3.6
run: |
@@ -48,6 +49,7 @@ jobs:
CIBW_MANYLINUX_X86_64_IMAGE: manylinux1
CIBW_MANYLINUX_I686_IMAGE: manylinux1
CIBW_BEFORE_BUILD: pip install numpy==1.15
+ MPL_DISABLE_FH4: "yes"
if: >
startsWith(github.ref, 'refs/heads/v3.3') ||
startsWith(github.ref, 'refs/tags/v3.3')
diff --git a/setup.py b/setup.py
index 5d8486dc9a20..5fef78641607 100644
--- a/setup.py
+++ b/setup.py
@@ -169,6 +169,14 @@ def build_extensions(self):
self.compiler.compiler_so.remove('-Wstrict-prototypes')
except (ValueError, AttributeError):
pass
+ if (self.compiler.compiler_type == 'msvc' and
+ os.environ.get('MPL_DISABLE_FH4')):
+ # Disable FH4 Exception Handling implementation so that we don't
+ # require VCRUNTIME140_1.dll. For more details, see:
+ # https://devblogs.microsoft.com/cppblog/making-cpp-exception-handling-smaller-x64/
+ # https://github.com/joerick/cibuildwheel/issues/423#issuecomment-677763904
+ for ext in self.extensions:
+ ext.extra_compile_args.append('/d2FH4-')
env = self.add_optimization_flags()
for package in good_packages:
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