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pkgsrc-ng/pkgtools/cwrappers/files/doc/unimplemented.txt
2016-01-21 23:41:46 +01:00

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Mode detection:
-E preprocess-only
-S assembly-only
-c compile-only
--> Consider to drop the various linker options
Cleanup:
- Remove redundant -D options. Should keep -U in mind.
Library path resorting:
- Reorder -l to be after all -L options, duplicate -Wl,-dynamic / -Wl,-static
options in the library list. Should this also take -Wl,-rpath-link into
account?
Scan:
- Append extra_args only if -v is not used
Scan for ld:
- Strip -Wl,
- Silently drop -pthread
Platform specific processing:
- All platforms but Darwin have _USE_RPATH=yes. Shouldn't Darwin just
filter out the rpath rules in a platform specific transformation phase?
Transform:
- opt:foo:bar: Replace all options matching foo with bar. foo might be
fnmatch expression. Earlier than other transformations. If bar is empty,
option is dropped.
Libtool:
- Drop -L, -l, -Wl,* if not in link mode
-> see first point
rpath aggregation:
- OSF1 and HP-UX ld(1) do not support multiple -rpath or +b. Any such instances
need to be transformed to a colon-separated list. Example:
-Wl,-rpath -Wl,/dir1 -Wl,-rpath -Wl,/dir2 --> -Wl,+b -Wl,/dir1:/dir2
See cmd-sink-{hpux,osf1}-{ld,cc} in classic wrappers for more information.