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Add -headerpad_max_install_names flag for macOS dylib builds

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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>
This commit is contained in:
copilot-swe-agent[bot] 2026-02-08 03:26:13 +00:00
parent f988e76da6
commit a08e8a99f9
5 changed files with 18 additions and 1 deletions
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4
src/CMakeLists.txt
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@ -134,6 +134,10 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
# Enable RPATH support
MACOSX_RPATH TRUE
)
# Add header padding to allow install_name_tool to modify the dylib
# This fixes issues where install_name_tool fails with "larger updated load commands do not fit"
# See: https://github.com/Z3Prover/z3/issues/7623
target_link_options(libz3 PRIVATE "-Wl,-headerpad_max_install_names")
endif()
if (NOT MSVC)