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.

diff --git a/Misc/NEWS.d/next/Build/2023-07-23-00-38-51.gh-issue-106962.VVYrWB.rst b/Misc/NEWS.d/next/Build/2023-07-23-00-38-51.gh-issue-106962.VVYrWB.rst
new file mode 100644 (file)
index 0000000..32e196f
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2023-07-23-00-38-51.gh-issue-106962.VVYrWB.rst
@@ -0,0 +1 @@
+Detect MPI compilers in :file:`configure`.

diff --git a/configure b/configure
index e6fb5e3c2b0c2fcce9442b2d1bfea3614f3d5499..18d404c8dc060506b647af34bc84249956b83bc8 100755 (executable)
--- a/configure
+++ b/configure
@@ -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"

diff --git a/configure.ac b/configure.ac
index a1ee78047692fdb9532984c50fe5f09bb745b197..cdb88a3071976c0c47a1b3a739c04bec125922c1 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -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"