Drop support for EOL Python 3.8

cpython-unix/Makefile

@@ -255,9 +255,6 @@ PYTHON_HOST_DEPENDS := \
   $(OUTDIR)/m4-$(M4_VERSION)-$(PACKAGE_SUFFIX).tar \
   $(NULL)
 
-$(OUTDIR)/cpython-3.8-$(CPYTHON_3.8_VERSION)-$(HOST_PLATFORM).tar: $(PYTHON_HOST_DEPENDS)
-	$(RUN_BUILD) --docker-image $(DOCKER_IMAGE_BUILD) cpython-3.8-host
-
 $(OUTDIR)/cpython-3.9-$(CPYTHON_3.9_VERSION)-$(HOST_PLATFORM).tar: $(PYTHON_HOST_DEPENDS)
 	$(RUN_BUILD) --docker-image $(DOCKER_IMAGE_BUILD) cpython-3.9-host
 
@@ -306,9 +303,6 @@ ALL_PYTHON_DEPENDS = \
     $(PYTHON_DEPENDS) \
     $(NULL)
 
-$(OUTDIR)/cpython-$(CPYTHON_3.8_VERSION)-$(PACKAGE_SUFFIX).tar: $(ALL_PYTHON_DEPENDS)
-	$(RUN_BUILD) --docker-image $(DOCKER_IMAGE_BUILD) cpython-3.8
-
 $(OUTDIR)/cpython-$(CPYTHON_3.9_VERSION)-$(PACKAGE_SUFFIX).tar: $(ALL_PYTHON_DEPENDS)
 	$(RUN_BUILD) --docker-image $(DOCKER_IMAGE_BUILD) cpython-3.9
 

cpython-unix/build-cpython-host.sh

@@ -40,10 +40,8 @@ pushd "Python-${PYTHON_VERSION}"
 if [ "${CC}" = "clang" ]; then
   if [ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_13}" ]; then
     patch -p1 -i ${ROOT}/patch-disable-multiarch-13.patch
-  elif [ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_9}" ]; then
-    patch -p1 -i ${ROOT}/patch-disable-multiarch.patch
   else
-    patch -p1 -i ${ROOT}/patch-disable-multiarch-legacy.patch
+    patch -p1 -i ${ROOT}/patch-disable-multiarch.patch
   fi
 elif [ "${CC}" = "musl-clang" ]; then
   # Similarly, this is a problem for musl Clang on Python 3.13+

cpython-unix/build-cpython.sh

@@ -111,10 +111,8 @@ fi
 if [ "${CC}" = "clang" ]; then
     if [ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_13}" ]; then
         patch -p1 -i ${ROOT}/patch-disable-multiarch-13.patch
-    elif [ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_9}" ]; then
-        patch -p1 -i ${ROOT}/patch-disable-multiarch.patch
     else
-        patch -p1 -i ${ROOT}/patch-disable-multiarch-legacy.patch
+        patch -p1 -i ${ROOT}/patch-disable-multiarch.patch
     fi
 elif [ "${CC}" = "musl-clang" ]; then
   # Similarly, this is a problem for musl Clang on Python 3.13+
@@ -164,9 +162,7 @@ fi
 # executable. This behavior is kinda suspect on all platforms, as it could be adding
 # library dependencies that shouldn't need to be there.
 if [ "${PYBUILD_PLATFORM}" = "macos" ]; then
-    if [ "${PYTHON_MAJMIN_VERSION}" = "3.8" ]; then
-        patch -p1 -i ${ROOT}/patch-python-link-modules-3.8.patch
-    elif [ "${PYTHON_MAJMIN_VERSION}" = "3.9" ]; then
+    if [ "${PYTHON_MAJMIN_VERSION}" = "3.9" ]; then
         patch -p1 -i ${ROOT}/patch-python-link-modules-3.9.patch
     elif [ "${PYTHON_MAJMIN_VERSION}" = "3.10" ]; then
         patch -p1 -i ${ROOT}/patch-python-link-modules-3.10.patch
@@ -210,7 +206,7 @@ fi
 
 # iOS doesn't have system(). Teach posixmodule.c about that.
 # Python 3.11 makes this a configure time check, so we don't need the patch there.
-if [[ -n "${PYTHON_MEETS_MINIMUM_VERSION_3_9}" && -n "${PYTHON_MEETS_MAXIMUM_VERSION_3_10}" ]]; then
+if [[ -n "${PYTHON_MEETS_MAXIMUM_VERSION_3_10}" ]]; then
     patch -p1 -i ${ROOT}/patch-posixmodule-remove-system.patch
 fi
 
@@ -393,11 +389,6 @@ if [ "${PYBUILD_PLATFORM}" = "macos" ]; then
     # However CPython lacks the runtime availability guards for most symbols.
     # This results in runtime failures when attempting to resolve/call the
     # symbol.
-    #
-    # Unfortunately, this means we need to ban weak symbols on CPython 3.8, to
-    # the detriment of performance. However, we can actually use most symbols
-    # on aarch64 because it targets macOS SDK 11.0, not 10.9. But more modern
-    # symbols do need to be banned.
     if [ -n "${PYTHON_MEETS_MAXIMUM_VERSION_3_9}" ]; then
         if [ "${TARGET_TRIPLE}" != "aarch64-apple-darwin" ]; then
             for symbol in clock_getres clock_gettime clock_settime faccessat fchmodat fchownat fdopendir fstatat futimens getentropy linkat mkdirat openat preadv pwritev readlinkat renameat symlinkat unlinkat utimensat; do
@@ -907,7 +898,7 @@ done
 mkdir ${ROOT}/out/python/build/lib
 cp -av ${TOOLS_PATH}/deps/lib/*.a ${ROOT}/out/python/build/lib/
 
-# On Apple, Python 3.9+ uses __builtin_available() to sniff for feature
+# On Apple, Python uses __builtin_available() to sniff for feature
 # availability. This symbol is defined by clang_rt, which isn't linked
 # by default. When building a static library, one must explicitly link
 # against clang_rt or you will get an undefined symbol error for

cpython-unix/build-main.py

@@ -63,7 +63,6 @@ def main():
     parser.add_argument(
         "--python",
         choices={
-            "cpython-3.8",
             "cpython-3.9",
             "cpython-3.10",
             "cpython-3.11",

cpython-unix/build.py

@@ -436,7 +436,6 @@ def build_cpython_host(
             "build-cpython-host.sh",
             "patch-disable-multiarch.patch",
             "patch-disable-multiarch-13.patch",
-            "patch-disable-multiarch-legacy.patch",
         }
         for s in sorted(support):
             build_env.copy_file(SUPPORT / s)
@@ -456,7 +455,7 @@ def build_cpython_host(
 
         # Set environment variables allowing convenient testing for Python
         # version ranges.
-        for v in ("3.8", "3.9", "3.10", "3.11", "3.12", "3.13"):
+        for v in ("3.9", "3.10", "3.11", "3.12", "3.13"):
             normal_version = v.replace(".", "_")
 
             if meets_python_minimum_version(python_version, v):
@@ -785,7 +784,7 @@ def build_cpython(
 
         # Set environment variables allowing convenient testing for Python
         # version ranges.
-        for v in ("3.8", "3.9", "3.10", "3.11", "3.12", "3.13"):
+        for v in ("3.9", "3.10", "3.11", "3.12", "3.13"):
             normal_version = v.replace(".", "_")
 
             if meets_python_minimum_version(python_version, v):
@@ -1202,7 +1201,6 @@ def main():
             )
 
         elif action in (
-            "cpython-3.8",
             "cpython-3.9",
             "cpython-3.10",
             "cpython-3.11",

cpython-unix/targets.yml

@@ -59,7 +59,6 @@ aarch64-apple-darwin:
   host_platforms:
     - macos
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -149,7 +148,6 @@ aarch64-unknown-linux-gnu:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -307,7 +305,6 @@ i686-unknown-linux-gnu:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -552,7 +549,6 @@ x86_64-apple-darwin:
   host_platforms:
     - macos
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -722,7 +718,6 @@ x86_64-unknown-linux-gnu:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -767,7 +762,6 @@ x86_64_v2-unknown-linux-gnu:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -813,7 +807,6 @@ x86_64_v3-unknown-linux-gnu:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -859,7 +852,6 @@ x86_64_v4-unknown-linux-gnu:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -905,7 +897,6 @@ x86_64-unknown-linux-musl:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -948,7 +939,6 @@ x86_64_v2-unknown-linux-musl:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -992,7 +982,6 @@ x86_64_v3-unknown-linux-musl:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'
@@ -1036,7 +1025,6 @@ x86_64_v4-unknown-linux-musl:
   host_platforms:
     - linux64
   pythons_supported:
-    - '3.8'
     - '3.9'
     - '3.10'
     - '3.11'