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gh-106962: Detect mpicc in configure.ac (#106961) 

Don't let autoconf mistake MPI compilers for Intel compilers;
filter out the MPI case to prevent Intel specific options from being applied.
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Lukas van de Wiel 2023-07-23 01:20:03 +02:00 committed by GitHub
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commit 9a6b278769
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Misc/NEWS.d/next/Build/2023-07-23-00-38-51.gh-issue-106962.VVYrWB.rst Normal file
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@ -0,0 +1 @@
Detect MPI compilers in :file:`configure`.

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configure generated vendored
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@ -10154,6 +10154,9 @@ rm -f core conftest.err conftest.$ac_objext conftest.beam \
esac
case "$CC" in
*mpicc*)
CFLAGS_NODIST="$CFLAGS_NODIST"
;;
*icc*)
# ICC needs -fp-model strict or floats behave badly
CFLAGS_NODIST="$CFLAGS_NODIST -fp-model strict"

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configure.ac
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@ -2656,6 +2656,9 @@ yes)
esac
case "$CC" in
*mpicc*)
CFLAGS_NODIST="$CFLAGS_NODIST"
;;
*icc*)
# ICC needs -fp-model strict or floats behave badly
CFLAGS_NODIST="$CFLAGS_NODIST -fp-model strict"