[llvm-dev] Fix builds on MacOS Mojave [patch]

[Don Hinton via llvm-dev]

I get burned one thing or another almost every time I upgrade XCode.
Recently I ran into this problem, but chose to solve it locally by adding
the following to my cache file:

set(CMAKE_C_FLAGS "-I/opt/local/include ${CMAKE_C_FLAGS}" CACHE STRING "")
set(CMAKE_CXX_FLAGS "-I/opt/local/include ${CMAKE_CXX_FLAGS}" CACHE STRING
"")

I use macports, which installs this stuff in /opt.

I sorta gave up on OSX working out of the box, so I patch as I go...

hth...
don

On Wed, May 1, 2019 at 11:23 AM Eli Friedman via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> On an OS X install with Xcode, /opt/ is not expected to contain anything
> in particular; it doesn't make sense to hard-code it into the LLVM build
> system.
>
> Are you trying to use homebrew to build LLVM?
>
> -Eli
>
> > -----Original Message-----
> > From: llvm-dev <llvm-dev-bounces at lists.llvm.org> On Behalf Of Mark
> Murray
> > via llvm-dev
> > Sent: Wednesday, May 1, 2019 8:48 AM
> > To: llvm-dev at lists.llvm.org
> > Subject: [EXT] [llvm-dev] Fix builds on MacOS Mojave [patch]
> >
> > Hi!
> >
> > I get build failures on Macos 10.14 Mojave.
> >
> > How-to-repeat:
> > $ git clone <llvm-project>
> > $ cd llvm-project && mkdir build && cd build
> > $ cmake -G"Unix Makefiles" ../llvm
> > $ make # or "make -j${N}"
> > :
> > Building
> > :
> > In file included from /Users/marmur02/git/llvm-
> > project/llvm/lib/WindowsManifest/WindowsManifestMerger.cpp:20:
> > In file included from /opt/local/include/libxml2/libxml/xmlreader.h:14:
> > In file included from /opt/local/include/libxml2/libxml/tree.h:1307:
> > In file included from /opt/local/include/libxml2/libxml/xmlmemory.h:218:
> > In file included from /opt/local/include/libxml2/libxml/threads.h:35:
> > In file included from /opt/local/include/libxml2/libxml/globals.h:18:
> > In file included from /opt/local/include/libxml2/libxml/parser.h:810:
> > In file included from /opt/local/include/libxml2/libxml/encoding.h:31:
> > /opt/local/include/unicode/ucnv.h:52:10: fatal error:
> 'unicode/ucnv_err.h' file
> > not found
> > #include "unicode/ucnv_err.h"
> >          ^~~~~~~~~~~~~~~~~~~~
> > 1 error generated.
> >
> > A fix is attached.
> >
> > Thanks!
> >
> > M
> >
> > Mark Murray Staff Software Engineer | Arm
> > . . . . . . . . . . . . . . . . . . . . . . . . . . .
> > arm.com <http://www.arm.com>
> >
> >
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