llvm dev - Sep 2014 - [LLVMdev] migrating from autoconf to cmake+ninja

I want to start using cmake+ninja instead of autoconf for configuring
and building llvm from svn, but I have no idea how to map my existing
list of autoconf flags to cmake.

Here's how I run ./configure right now in the top directory:
PREFIX=_some_prefix_dir_ \
    ../llvm/configure \
    --prefix=$PREFIX \
    --libdir=$PREFIX/lib/llvm \
    --sysconfdir=$PREFIX/etc \
    --enable-shared \
    --enable-targets=all \
    --disable-expensive-checks \
    --disable-debug-runtime \
    --disable-assertions \
    --with-binutils-include=/usr/include \
    --enable-optimized

Is it possible to map this to cmake flags and if yes how?

Platform is linux-x86_64 and revision is release_35 branch.

If there's superfluous flags please do tell and I'll remove them.

Also is there a flag to skip tests?

Is building lld on linux supported? I tried including lld in the build
and it failed:
llvm[4]: Linking Release unit test CoreTest (without symbols)
/tmp/llvm/build/Release/lib/libgtest_main.a(TestMain.o): In function `main':
/tmp/llvm/llvm/utils/unittest/UnitTestMain/TestMain.cpp:(.text.main+0x28):
undefined reference to `llvm::cl::ParseCommandLineOptions(int, char
const* const*, char const*)'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
/tmp/llvm/llvm/unittests/Makefile.unittest:58: recipe for target
'Release/CoreTestTests' failed
make[4]: *** [Release/CoreTestTests] Error 1
make[4]: Leaving directory
'/tmp/llvm/build/tools/lld/unittests/CoreTests'
/tmp/llvm/llvm/Makefile.rules:937: recipe for target
'CoreTests/.makeall' failed
make[3]: *** [CoreTests/.makeall] Error 2

prefix = CMAKE_INSTALL_PREFIX
enabled-shared = BUILD_SHARED_LIBS
targets = LLVM_TARGETS_TO_BUILD (defaults to all, or use a semicolon separated
list)
disable-assertions = LLVM_ENABLE_ASSERTIONS (obviously inverted ;)

I don't believe the others have direct equivalents, however debug/optimized
is chosen via CMAKE_BUILD_TYPE

--
Johannes S. Mueller-Roemer, MSc
Wiss. Mitarbeiter - Interactive Engineering Technologies (IET)

Fraunhofer-Institut für Graphische Datenverarbeitung IGD
Fraunhoferstr. 5  |  64283 Darmstadt  |  Germany
Tel +49 6151 155-606  |  Fax +49 6151 155-139
johannes.mueller-roemer at igd.fraunhofer.de  |  www.igd.fraunhofer.de


-----Original Message-----
From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On
Behalf Of Carsten Mattner
Sent: Wednesday, August 27, 2014 15:41
To: llvmdev at cs.uiuc.edu
Subject: [LLVMdev] migrating from autoconf to cmake+ninja

I want to start using cmake+ninja instead of autoconf for configuring and
building llvm from svn, but I have no idea how to map my existing list of
autoconf flags to cmake.

Here's how I run ./configure right now in the top directory:
PREFIX=_some_prefix_dir_ \
    ../llvm/configure \
    --prefix=$PREFIX \
    --libdir=$PREFIX/lib/llvm \
    --sysconfdir=$PREFIX/etc \
    --enable-shared \
    --enable-targets=all \
    --disable-expensive-checks \
    --disable-debug-runtime \
    --disable-assertions \
    --with-binutils-include=/usr/include \
    --enable-optimized

Is it possible to map this to cmake flags and if yes how?

Platform is linux-x86_64 and revision is release_35 branch.

If there's superfluous flags please do tell and I'll remove them.

Also is there a flag to skip tests?

Is building lld on linux supported? I tried including lld in the build and it
failed:
llvm[4]: Linking Release unit test CoreTest (without symbols)
/tmp/llvm/build/Release/lib/libgtest_main.a(TestMain.o): In function `main':
/tmp/llvm/llvm/utils/unittest/UnitTestMain/TestMain.cpp:(.text.main+0x28):
undefined reference to `llvm::cl::ParseCommandLineOptions(int, char
const* const*, char const*)'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
/tmp/llvm/llvm/unittests/Makefile.unittest:58: recipe for target
'Release/CoreTestTests' failed
make[4]: *** [Release/CoreTestTests] Error 1
make[4]: Leaving directory
'/tmp/llvm/build/tools/lld/unittests/CoreTests'
/tmp/llvm/llvm/Makefile.rules:937: recipe for target
'CoreTests/.makeall' failed
make[3]: *** [CoreTests/.makeall] Error 2
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On Wed, Aug 27, 2014 at 4:29 PM, Mueller-Roemer, Johannes Sebastian
<Johannes.Sebastian.Mueller-Roemer at igd.fraunhofer.de>
wrote:
> prefix = CMAKE_INSTALL_PREFIX
> enabled-shared = BUILD_SHARED_LIBS
> targets = LLVM_TARGETS_TO_BUILD (defaults to all, or use a semicolon
separated list)
> disable-assertions = LLVM_ENABLE_ASSERTIONS (obviously inverted ;)
>
> I don't believe the others have direct equivalents, however
debug/optimized is chosen via CMAKE_BUILD_TYPE
Thank you. I found
http://llvm.org/docs/CMake.html#options-and-variables and gonna
try out cmake -G ninja.
> -----Original Message-----
> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at
cs.uiuc.edu] On Behalf Of Carsten Mattner
> Sent: Wednesday, August 27, 2014 15:41
> To: llvmdev at cs.uiuc.edu
> Subject: [LLVMdev] migrating from autoconf to cmake+ninja
>
> I want to start using cmake+ninja instead of autoconf for configuring and
building llvm from svn, but I have no idea how to map my existing list of
autoconf flags to cmake.
>
> Here's how I run ./configure right now in the top directory:
> PREFIX=_some_prefix_dir_ \
>     ../llvm/configure \
>     --prefix=$PREFIX \
>     --libdir=$PREFIX/lib/llvm \
>     --sysconfdir=$PREFIX/etc \
>     --enable-shared \
>     --enable-targets=all \
>     --disable-expensive-checks \
>     --disable-debug-runtime \
>     --disable-assertions \
>     --with-binutils-include=/usr/include \
>     --enable-optimized
>
> Is it possible to map this to cmake flags and if yes how?
>
> Platform is linux-x86_64 and revision is release_35 branch.
>
> If there's superfluous flags please do tell and I'll remove them.
>
> Also is there a flag to skip tests?
>
> Is building lld on linux supported? I tried including lld in the build and
it failed:
> llvm[4]: Linking Release unit test CoreTest (without symbols)
> /tmp/llvm/build/Release/lib/libgtest_main.a(TestMain.o): In function
`main':
> /tmp/llvm/llvm/utils/unittest/UnitTestMain/TestMain.cpp:(.text.main+0x28):
> undefined reference to `llvm::cl::ParseCommandLineOptions(int, char
> const* const*, char const*)'
> clang: error: linker command failed with exit code 1 (use -v to see
invocation)
> /tmp/llvm/llvm/unittests/Makefile.unittest:58: recipe for target
'Release/CoreTestTests' failed
> make[4]: *** [Release/CoreTestTests] Error 1
> make[4]: Leaving directory
'/tmp/llvm/build/tools/lld/unittests/CoreTests'
> /tmp/llvm/llvm/Makefile.rules:937: recipe for target
'CoreTests/.makeall' failed
> make[3]: *** [CoreTests/.makeall] Error 2
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