Add -headerpad_max_install_names flag for macOS dylib builds

This fixes the install_name_tool issue on macOS where the tool fails
with "larger updated load commands do not fit". The linker flag
-Wl,-headerpad_max_install_names ensures sufficient header padding
in the Mach-O binary for install_name_tool to modify install names.

Changes made:
- CMake: Added flag to libz3, z3java, z3jl shared libraries on Darwin
- Python build: Changed flag from ML-only to all macOS builds
- OCaml CMake: Added flag to OCaml stublib build on APPLE

Fixes #7623 (regression in 4.15.5)

Co-authored-by: NikolajBjorner <3085284+NikolajBjorner@users.noreply.github.com>

src/api/julia/CMakeLists.txt

@@ -34,6 +34,10 @@ target_include_directories(z3jl PRIVATE
     "${PROJECT_BINARY_DIR}/src/api"
     "${PROJECT_SOURCE_DIR}/src/api/c++"
 )
+# Add header padding for macOS to allow install_name_tool to modify the dylib
+if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+  target_link_options(z3jl PRIVATE "-Wl,-headerpad_max_install_names")
+endif()
 
 option(Z3_INSTALL_JULIA_BINDINGS "Install Julia bindings when invoking install target" ON)
 if(Z3_INSTALL_JULIA_BINDINGS)