From 502625b6740fa789aa8ba7f279d07721c3311d6f Mon Sep 17 00:00:00 2001 From: Chris Burr Date: Tue, 5 Nov 2019 10:32:49 +1030 Subject: BLD: Review feedback for clang -flto fix --- numpy/core/setup_common.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'numpy/core/setup_common.py') diff --git a/numpy/core/setup_common.py b/numpy/core/setup_common.py index ba183e8b9..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 foo.before[1]; }\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") -- cgit v1.2.1