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-rw-r--r--debian/patches/focal-arm64-outline-atomics23
1 files changed, 23 insertions, 0 deletions
diff --git a/debian/patches/focal-arm64-outline-atomics b/debian/patches/focal-arm64-outline-atomics
new file mode 100644
index 0000000..7d101f1
--- /dev/null
+++ b/debian/patches/focal-arm64-outline-atomics
@@ -0,0 +1,23 @@
+Enable outline-atomics on arm64.
+
+The flag was added in focal's gcc, but is off by default there. It is enabled
+by default on all later distributions (hirsute, impish, bullseye, bookwork,
+sid).
+
+https://www.postgresql.org/message-id/flat/1635221042457.21654%40amazon.com
+
+This patch can be removed once focal is EOL.
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -538,6 +538,10 @@ if test "$GCC" = yes -a "$ICC" = no; the
+ if test -n "$NOT_THE_CFLAGS"; then
+ CFLAGS="$CFLAGS -Wno-stringop-truncation"
+ fi
++ if test x"$host_cpu" == x"aarch64"; then
++ PGAC_PROG_CC_CFLAGS_OPT([-moutline-atomics])
++ PGAC_PROG_CXX_CFLAGS_OPT([-moutline-atomics])
++ fi
+ elif test "$ICC" = yes; then
+ # Intel's compiler has a bug/misoptimization in checking for
+ # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.