v3.0.x: configury: fix gcc builtin atomic detection #3803
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test for both 32 and 64 bits. clang only support 32 bits builtin atomics when -m32 is used Thanks Paul Hargrove for reporting this. Signed-off-by: Gilles Gouaillardet <gilles@rist.or.jp> (cherry picked from commit open-mpi/ompi@e77874b)
hjelmn
approved these changes
Jul 5, 2017
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test for both 32 and 64 bits.
clang only support 32 bits builtin atomics when -m32 is used
Thanks Paul Hargrove for reporting this.
Signed-off-by: Gilles Gouaillardet gilles@rist.or.jp
(cherry picked from commit e77874b)