[3.12] gh-108447: Detect platform triplets for x86_64 GNU/Hurd (GH-108045)

sthibaul · sthibaul · commit b00bef1dbf35 · 2023-11-12T00:25:16.000+01:00
(cherry picked from commit edb569e)
diff --git a/Misc/NEWS.d/next/Build/2023-08-24-18-36-31.gh-issue-108447.Ofsygr.rst b/Misc/NEWS.d/next/Build/2023-08-24-18-36-31.gh-issue-108447.Ofsygr.rst
@@ -0,0 +1 @@
+Fix x86_64 GNU/Hurd build
diff --git a/configure.ac b/configure.ac
@@ -1078,7 +1078,13 @@ cat > conftest.c <<EOF
 #   error unknown platform triplet
 # endif
 #elif defined(__gnu_hurd__)
+# if defined(__x86_64__) && defined(__LP64__)
+        x86_64-gnu
+# elif defined(__i386__)
         i386-gnu
+# else
+#   error unknown platform triplet
+# endif
 #elif defined(__APPLE__)
         darwin
 #elif defined(__VXWORKS__)
