downloads: upgrade LLVM/Clang to 11.0.0

This required a patch to gdbm to get it to compile.

Author: indygreg

cpython-unix/build-gdbm.sh

@@ -13,6 +13,24 @@ tar -xf gdbm-${GDBM_VERSION}.tar.gz
 
 pushd gdbm-${GDBM_VERSION}
 
+# Patch to work with -fno-common, which LLVM 11 enabled.
+patch -p1 <<EOF
+diff --git a/src/parseopt.c b/src/parseopt.c
+index a7b504f..1f6b561 100644
+--- a/src/parseopt.c
++++ b/src/parseopt.c
+@@ -255,8 +255,6 @@ print_option_descr (const char *descr, size_t lmargin, size_t rmargin)
+ }
+ 
+ char *parseopt_program_name;
+-char *parseopt_program_doc;
+-char *parseopt_program_args;
+ const char *program_bug_address = "<" PACKAGE_BUGREPORT ">";
+ void (*parseopt_help_hook) (FILE *stream);
+ 
+EOF
+
+
 # CPython setup.py looks for libgdbm_compat and gdbm-ndbm.h,
 # which require --enable-libgdbm-compat.
 CLFAGS="${EXTRA_TARGET_CFLAGS} -fPIC" CPPFLAGS="${EXTRA_TARGET_CFLAGS} -fPIC" ./configure \

cpython-unix/build.py

@@ -57,6 +57,13 @@ def add_target_env(env, platform, build_env):
                 # Suppress extremely verbose warnings we see with LLVM 10.
                 "-Wno-nullability-completeness",
                 "-Wno-expansion-to-defined",
+                # LLVM 11 contains commit https://reviews.llvm.org/D83250,
+                # which enables -Werror for undef-prefix=TARGET_OS_.
+                # However, the macOS SDK has headers that reference deprecated
+                # TARGET_OS defines, like TARGET_OS_EMBEDDED. So LLVM 11 refuses
+                # to work with the macOS SDKs out of the box. We work around
+                # this by undoing the -Werror=undef-prefix in that commit.
+                "-Wno-undef-prefix",
             ]
         )
 

pythonbuild/downloads.py

@@ -29,16 +29,16 @@
         "license_file": "LICENSE.bzip2.txt",
     },
     "clang": {
-        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/clang-10.0.1.src.tar.xz",
-        "size": 14046188,
-        "sha256": "f99afc382b88e622c689b6d96cadfa6241ef55dca90e87fc170352e12ddb2b24",
-        "version": "10.0.1",
+        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/clang-11.0.0.src.tar.xz",
+        "size": 14982988,
+        "sha256": "0f96acace1e8326b39f220ba19e055ba99b0ab21c2475042dbc6a482649c5209",
+        "version": "11.0.0",
     },
     "clang-compiler-rt": {
-        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/compiler-rt-10.0.1.src.tar.xz",
-        "size": 2085712,
-        "sha256": "d90dc8e121ca0271f0fd3d639d135bfaa4b6ed41e67bd6eb77808f72629658fa",
-        "version": "10.0.1",
+        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/compiler-rt-11.0.0.src.tar.xz",
+        "size": 2141408,
+        "sha256": "374aff82ff573a449f9aabbd330a5d0a441181c535a3599996127378112db234",
+        "version": "11.0.0",
     },
     "cmake-linux-bin": {
         "url": "https://github.com/Kitware/CMake/releases/download/v3.15.1/cmake-3.15.1-Linux-x86_64.tar.gz",
@@ -132,16 +132,16 @@
         "version": "1.0.7",
     },
     "libc++": {
-        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/libcxx-10.0.1.src.tar.xz",
-        "size": 1839172,
-        "sha256": "def674535f22f83131353b3c382ccebfef4ba6a35c488bdb76f10b68b25be86c",
-        "version": "10.0.1",
+        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/libcxx-11.0.0.src.tar.xz",
+        "size": 1892416,
+        "sha256": "6c1ee6690122f2711a77bc19241834a9219dda5036e1597bfa397f341a9b8b7a",
+        "version": "11.0.0",
     },
     "libc++abi": {
-        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/libcxxabi-10.0.1.src.tar.xz",
-        "size": 552940,
-        "sha256": "a97ef810b2e9fb70e8f7e317b74e646ed4944f488b02ac5ddd9c99e385381a7b",
-        "version": "10.0.1",
+        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/libcxxabi-11.0.0.src.tar.xz",
+        "size": 554284,
+        "sha256": "58697d4427b7a854ec7529337477eb4fba16407222390ad81a40d125673e4c15",
+        "version": "11.0.0",
     },
     "libedit": {
         "url": "https://www.thrysoee.dk/editline/libedit-20191231-3.1.tar.gz",
@@ -204,16 +204,16 @@
         "license_file": "LICENSE.libxcb.txt",
     },
     "lld": {
-        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/lld-10.0.1.src.tar.xz",
-        "size": 1134580,
-        "sha256": "591449e0aa623a6318d5ce2371860401653c48bb540982ccdd933992cb88df7a",
-        "version": "10.0.1",
+        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/lld-11.0.0.src.tar.xz",
+        "size": 1247188,
+        "sha256": "efe7be4a7b7cdc6f3bcf222827c6f837439e6e656d12d6c885d5c8a80ff4fd1c",
+        "version": "11.0.0",
     },
     "llvm": {
-        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-10.0.1/llvm-10.0.1.src.tar.xz",
-        "size": 35270168,
-        "sha256": "c5d8e30b57cbded7128d78e5e8dad811bff97a8d471896812f57fa99ee82cdf3",
-        "version": "10.0.1",
+        "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-11.0.0/llvm-11.0.0.src.tar.xz",
+        "size": 39480848,
+        "sha256": "913f68c898dfb4a03b397c5e11c6a2f39d0f22ed7665c9cefa87a34423a72469",
+        "version": "11.0.0",
     },
     "mpc": {
         "url": "http://www.multiprecision.org/downloads/mpc-1.0.3.tar.gz",