4.00.0+beta2 fails to compile with llvm/clang 3.1 on OS X #5643
Comments
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Comment author: @protz Does it help if you edit config/Makefile after the configure step and set ASM_CFI_SUPPORTED to false? |
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Comment author: mww yes, that fixes it! |
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Comment author: @ygrek Please, can you run configure with -verbose option? |
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Comment author: mww log of |
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Comment author: @ygrek As far as I understand clang supports CFI and it was correctly detected. But looks like ocamlopt is not calling clang, can you run the failing command with -verbose switch? i.e. : ../boot/ocamlrun ../ocamlopt -verbose -warn-error A -nostdlib -g |
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Comment author: @ygrek Ah, indeed, configure sets assembler to 'as'. Try ./configure -cc cc -aspp 'cc -c' -as 'cc -c' |
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Comment author: mww With ... |
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Comment author: mww The full log of configure and build with |
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Comment author: @ygrek Obvious fix attached, please test |
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Comment author: mww compiles with 'loc-line-numbers.diff' |
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Comment author: @ygrek Please disregard loc-line-numbers.diff as it hides the real problem. |
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Comment author: @ygrek Prevent the original problem by checking that both $as and $aspp understand CFI directives (configure-cfi-detect.diff) |
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Comment author: @xavierleroy Applied the last two patches (debuginfo-is-none and configure-cfi-detect) in 4.00 branch (r12610) and in trunk (r12611). |
Original bug ID: 5643
Reporter: mww
Status: closed (set by @xavierleroy on 2015-12-11T18:07:02Z)
Resolution: fixed
Priority: normal
Severity: minor
Platform: Darwin/Intel
OS: Mac OS X
OS Version: 10.6.4
Version: 3.12.1
Fixed in version: 4.00.0+dev
Category: configure and build/install
Bug description
The 4.00.0+beta2 fails to compile with clang/llvm from XCode 4.3.2:
When building with the default compiler (clang) on OS X 10.7 with XCode 4.3.2, the build of ocaml fails.
Steps to reproduce
./configure -no-tk -cc cc -aspp 'cc -c'
make world.opt
OR more explicitely:
./configure -no-tk -cc /usr/bin/clang -aspp '/usr/bin/clang -c'
make world.opt
Additional information
'cc' points to '/usr/bin/clang' by default with the Apple developer tools on this platform/version;
a build log of the failed compilation can be found here:
http://build.macports.org/builders/buildports-lion-x86_64/builds/1562/steps/compile/logs/stdio
The error looks as follows:
../boot/ocamlrun ../ocamlopt -warn-error A -nostdlib -g
./Compflags pervasives.cmx-c pervasives.ml/tmp/camlasm1f3d36.s:636:Unknown pseudo-op: .cfi_startproc
/tmp/camlasm1f3d36.s:678:Unknown pseudo-op: .cfi_endproc
/tmp/camlasm1f3d36.s:684:Unknown pseudo-op: .cfi_startproc
/tmp/camlasm1f3d36.s:686:Unknown pseudo-op: .cfi_adjust_cfa_offset
/tmp/camlasm1f3d36.s:686:Rest of line ignored. 1st junk character valued 56 (8).
File attachments
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