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| author | Charles Harris <charlesr.harris@gmail.com> | 2019-11-04 19:04:40 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-11-04 19:04:40 -0700 |
| commit | 1f8fb2ca31a7f41a23c60e4ffcb38b3e0cb201f7 (patch) | |
| tree | caedc0294c2215b406d72a6a136ddf99e1d05d0a /numpy/core/setup_common.py | |
| parent | 4393e0c0cb1772d0f9691117d238d000b209decd (diff) | |
| parent | 502625b6740fa789aa8ba7f279d07721c3311d6f (diff) | |
| download | numpy-1f8fb2ca31a7f41a23c60e4ffcb38b3e0cb201f7.tar.gz | |
Merge pull request #14827 from chrisburr/patch-1
BLD: Prevent -flto from optimising long double representation check away
Diffstat (limited to 'numpy/core/setup_common.py')
| -rw-r--r-- | numpy/core/setup_common.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/numpy/core/setup_common.py b/numpy/core/setup_common.py index 84b78b585..6356f08ba 100644 --- a/numpy/core/setup_common.py +++ b/numpy/core/setup_common.py @@ -266,8 +266,9 @@ def check_long_double_representation(cmd): except ValueError: # try linking to support CC="gcc -flto" or icc -ipo # struct needs to be volatile so it isn't optimized away + # additionally "clang -flto" requires the foo struct to be used body = body.replace('struct', 'volatile struct') - body += "int main(void) { return 0; }\n" + body += "int main(void) { return foo.before[0]; }\n" src, obj = cmd._compile(body, None, None, 'c') cmd.temp_files.append("_configtest") cmd.compiler.link_executable([obj], "_configtest") |