Add macOS and aarch64 platform branches#97
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Detect __APPLE__ for OS string and __aarch64__/__arm64__ for arch string and bits, mirroring fmpy, fmi-library, and FMI4j. Without this, on Apple Silicon both axes fall through to defaults (linux + 32) and the loader looks for binaries/linux32/*.so instead of binaries/darwin64/*.dylib. Reported as robbr48#96.
Without this, test FMUs are written to binaries/linux64 (FMI 1/2) or binaries/x86_64-linux (FMI 3) on macOS, while the patched fmi4c reader correctly looks under binaries/darwin64 / aarch64-darwin. With this commit and the reader fix applied, all 6 ctest cases pass on macOS 26.4.1 arm64 (Apple M5): Test #1: fmi1cs ........... Passed 1.05 sec Test robbr48#2: fmi1me ........... Passed 0.36 sec Test robbr48#3: fmi2cs ........... Passed 0.44 sec Test robbr48#4: fmi2me ........... Passed 0.46 sec Test robbr48#5: fmi3cs ........... Passed 0.42 sec Test robbr48#6: fmi3me ........... Passed 0.33 sec 100% tests passed, 0 tests failed out of 6
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Fixes #96.
Detect
__APPLE__for OS string and__aarch64__/__arm64__for arch string and bits, mirroring what fmpy, fmi-library, FMI4j, and Reference-FMUs already do. Without this, on Apple Silicon both axes fall through to the defaults (linux+32) and the loader looks forbinaries/linux32/*.soinstead ofbinaries/darwin64/*.dylib.Verified by rebuilding OMSimulator (which vendors fmi4c) on macOS arm64 and running it on a ChuaCircuit FMU built by omc: simulates to completion and writes the result file. Repro steps and full analysis in #96.