BLD: bump min version of Clang to 15.0, and macOS min version to 10.14

Addresses the wheel build failures reported for macOS x86-64 in scipygh-22487.

macOS 10.14 is from 2018, so is still a very loose lower bound, we don't expect
issues as a result.

The Clang >=15 is probably also reasonable, since it's rare to see a version
below 16 being used. Targeting macOS 10.13 causes cibuildwheel to pull in
XCode 14.1 with Clang 14.0, while macOS 10.14 pulls in XCode 15.2 and Clang 15.0.

Author: rgommers

.github/workflows/wheels.yml

@@ -83,7 +83,7 @@ jobs:
         - [ubuntu-22.04, musllinux, x86_64, "", ""]
         - [ubuntu-24.04-arm, manylinux, aarch64, "", ""]
         - [ubuntu-24.04-arm, musllinux, aarch64, "", ""]
-        - [macos-13, macosx, x86_64, openblas, "10.13"]
+        - [macos-13, macosx, x86_64, openblas, "10.14"]
         - [macos-13, macosx, x86_64, accelerate, "14.0"]
         - [macos-14, macosx, arm64, openblas, "12.3"]
         - [macos-14, macosx, arm64, accelerate, "14.0"]

meson.build

@@ -41,8 +41,8 @@ if cc.get_id() == 'gcc'
     error('SciPy requires GCC >= 9.1')
   endif
 elif cc.get_id() == 'clang' or cc.get_id() == 'clang-cl'
-  if not cc.version().version_compare('>=12.0')
-    error('SciPy requires clang >= 12.0')
+  if not cc.version().version_compare('>=15.0')
+    error('SciPy requires clang >= 15.0')
   endif
 elif cc.get_id() == 'msvc'
   if not cc.version().version_compare('>=19.20')