ENH: Update MINC to fdf1845

[blowekamp]

Summary

Update the vendored MINC (libminc) third-party library from commit e5064e43 (2026-02-09) to commit fdf18452 (2026-02-21).

Upstream commit: BIC-MNI/libminc@fdf1845

Changes

• config.h.cmake: Various configuration updates (80 lines changed)
• CMakeLists.txt: Upstream switched to GNUInstallDirs defaults (${CMAKE_INSTALL_LIBDIR} instead of lib${LIB_SUFFIX} for CMAKE_INSTALL_RPATH). ITK's local patch preserving ${LIBMINC_EXTERNAL_LIB_PREFIX}minc2 for VOLUME_IO_LIBRARY was carried forward.

Conflict Resolution

There was a single merge conflict in Modules/ThirdParty/MINC/src/libminc/CMakeLists.txt. The upstream change used ${CMAKE_INSTALL_LIBDIR} (GNUInstallDirs) for CMAKE_INSTALL_RPATH, while ITK had a local patch for VOLUME_IO_LIBRARY. Both changes were preserved in the resolution.

Notes

• No symbol mangling files present in this module — no mangling updates needed.
• This commit was generated by the update-third-party skill.

[blowekamp]

This update addresses a build error with SimpleITK, by using cmake_minimum_required with a version range for policies.

CMake Warning (dev) at /work/SimpleITK-super/venv/lib/python3.12/site-packages/cmake/data/share/cmake-3.29/Modules/CTest.cmake:50 (option):
  Policy CMP0077 is not set: option() honors normal variables.  Run "cmake
  --help-policy CMP0077" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

  For compatibility with older versions of CMake, option is clearing the
  normal variable 'BUILD_TESTING'.
Call Stack (most recent call first):
  /work/SimpleITK-super/_deps/itk-src/Modules/ThirdParty/MINC/src/libminc/CMakeLists.txt:23 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

[dzenanz]

Looks good on a glance.