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CMake/Tests/RunCMake/find_path/MSYSTEM_PREFIX.cmake
Brad King 5e5132e1b1 MinGW: Search for packages in standard MSYSTEM environment prefixes
MSYS2 and similar MinGW/MSYS distributions define development
environments with a `MSYSTEM` environment variable.  Each such
environment has a documented installation prefix for its packages,
often provided by a `MSYSTEM_PREFIX` environment variable.
Since commit 84a25fc263 (cmake_host_system_information: Add
MSYSTEM_PREFIX query, 2023-09-08) we can look up this prefix.

Add `$MSYSTEM_PREFIX/local` and `$MSYSTEM_PREFIX` to our system search
prefixes when targeting MinGW under `MSYSTEM` environments.  This is
their equivalent to `/usr/local` and `/usr`, which we search by default
on UNIX systems.

Issue: #24216
2023-09-13 08:35:59 -04:00

6 lines
254 B
CMake

set(ENV{MSYSTEM} "FAKEMSYS")
set(ENV{MSYSTEM_PREFIX} "${CMAKE_CURRENT_LIST_DIR}/MSYSTEM_PREFIX")
enable_language(C)
find_path(MSYSTEM_PREFIX_INCLUDE_DIR NAMES msystem_prefix.h)
message(STATUS "MSYSTEM_PREFIX_INCLUDE_DIR='${MSYSTEM_PREFIX_INCLUDE_DIR}'")