en Copyright 2025 Java http://opengrok-test.openoffice.org:8080/history/trunk/ext_libraries/coinmp/#2a8fa3f06b2c9d1595434663e9efddc53f9375b2 coinmp: link sub-libraries explicitly on macOS (fixes arm64 link)On Apple Silicon the CoinMP build fails linking libOsi.dylib: Undefined symbols for architecture arm64: "CoinFinite(double)", ... (and many more CoinUtils symbols) ld: symbol(s) not found for architecture arm64The objects are correctly arm64; the problem is that each CoinMP sub-library (Osi, Clp, Cgl, Cbc, CoinMP) is built as a .dylib that referencessymbols defined in a sibling library (CoinUtils, ...) without listing thatsibling on its link line. On Linux those undefined symbols resolve at loadtime, but macOS's two-level namespace rejects them at link time.CoinMP's bundled 2013-era libtool papers over this on Darwin with'-undefined dynamic_lookup', but only for MACOSX_DEPLOYMENT_TARGET=10.x; theversion case falls through for 11.0+ (our Apple Silicon baseline), leavingallow_undefined_flag empty. Rather than re-add the dynamic_lookup hack, pass--enable-dependency-linking (macOS only) so configure adds the inter-librarydependencies ($COINUTILS_LIBS etc.) to each library's LIBADD and sets-no-undefined -- the correct, namespace-clean fix.Verified by a full local arm64 build at MACOSX_DEPLOYMENT_TARGET=11.0:libOsi/libOsiClp/.../libCoinMP all link, and otool -L shows libOsi nowrecords libCoinUtils as an explicit dependency. List of files: /trunk/ext_libraries/coinmp/makefile.mk Thu, 11 Jun 2026 20:00:00 +0000 Jim Jagielski <jimjag@gmail.com>