forked from OSchip/llvm-project
77d82202d1
These behave slightly idiosyncratically in the best of cases, and have
additional hacks layered on top of that for compatibility with badly behaved
build systems (via ld64).
For -lXYZ:
+ If XYZ is actually XY.o then search all library paths for XY.o
+ Otherwise search all library paths, first for libXYZ.dylib, then libXYZ.a
+ By default the library paths are /usr/lib and /usr/local/lib in that order.
For -syslibroot:
+ -syslibroot options apply to absolute paths in the search order.
+ All -syslibroot prefixes that exist are added to the search path *instead*
of the original.
+ If no -syslibroot prefixed path exists, the original is kept.
+ Hacks^WExceptions:
+ If only 1 -syslibroot is given and doesn't contain /usr/lib or
/usr/local/lib, that path is dropped entirely. (rdar://problem/6438270).
+ If the last -syslibroot is "/", all of them are ignored entirely.
(rdar://problem/5829579).
At least, that's my best interpretation of what ld64 does in buildSearchPaths.
llvm-svn: 212706
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| .. | ||
| CMakeLists.txt | ||
| CoreDriver.cpp | ||
| CoreOptions.td | ||
| DarwinLdDriver.cpp | ||
| DarwinLdOptions.td | ||
| Driver.cpp | ||
| GnuLdDriver.cpp | ||
| GnuLdInputGraph.cpp | ||
| GnuLdOptions.td | ||
| Makefile | ||
| TODO.rst | ||
| UniversalDriver.cpp | ||
| UniversalDriverOptions.td | ||
| WinLinkDriver.cpp | ||
| WinLinkInputGraph.cpp | ||
| WinLinkModuleDef.cpp | ||
| WinLinkOptions.td | ||