https://llvm.org/bugs/show_bug.cgi?id=25409
Bug ID: 25409
Summary: LLVM 3.7+ doesn't build on Illumos-based OSes
(SmartOS, OpenIndiana, etc.)
Product: Build scripts
Version: trunk
Hardware: PC
OS: Solaris
Status: NEW
Severity: normal
Priority: P
Component: Makefiles
Assignee: unassignedb...@nondot.org
Reporter: nikita.baksal...@gmail.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Hello,
Makefile.rules adds linker flags to strip dead symbols. For Solaris-like
operating systems it has the following code:
ifeq ($(HOST_OS),SunOS)
LD.Flags += -Wl,-z -Wl,discard-unused=sections
...
endif
According to an OpenIndiana developers mailing list [1] Illumos (the
OpenSolaris fork) doesn't support the linker flag "discard-unused=sections"
yet. It's available only on Oracle's Solaris 11.1 [2].
That makes it impossible to compile LLVM on Illumos derivatives, such as Joyent
SmartOS, OmniOS, and others.
Both Illumos and Oracle Solaris support `-z ignore` flag, though, that is
similar (but not equivalent) to `discard-unused=sections`. So this bug can be
easily fixed by replacing the "discard-unused=sections" with "ignore".
If maintainers are OK with such a fix, I can submit a patch.
Thanks!
[1] http://openindiana.org/pipermail/oi-dev/2015-June/003696.html
[2] https://docs.oracle.com/cd/E26502_01/html/E26507/glmth.html
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