On 08/03/2015 10:02 PM, Hsiu-Khuern Tang wrote: > Hi, > > [This is a follow-up to the "New version of Rtools for Windows" thread > in January, but I just subscribed and don't know how to reply to an > old thread -- my apologies.]
I am planning to put a new Rtools online today that uses a different build of gcc 4.9.2. I will be concentrating on getting it to work with all the external libraries before the 3.2.0 release next month. I'm not planning to try to get it to work with R-patched, and I expect it won't: I needed to make a number of patches to R-devel for compatibility. It is also not multilib. It uses static linking of libraries, and SJLJ exception handling in both 32 and 64 bit builds -- this is necessary for compatibility with existing compiles of external libraries, but may not be ideal in 64 bits. However, I believe using SEH will mean static linking is impossible, and that leads to problems distributing run-time DLLs, and I'd rather not worry about those. Testing of the new Rtools will be appreciated. I expect the R-devel builds will start using it tomorrow or the next day. Duncan Murdoch > > I was able to use the nuwen distro to build a gcc 4.9.2 toolchain and > use it to build the latest R-patched with it. > > Below are some notes about what I did; I hope they will be useful for > keeping Rtools up-to-date. > > > Note: > > - This is 64-bit only; I tried but was unable to create a multilib toolchain > > - I did not run any tests on the resulting R binary, other than > starting R and running some basic commands > > - I don't necessarily know what I'm doing! > > > Outline of steps: > > - The (nicely done!) nuwen website by Stephan Lavavej has made > available a MinGW distro and the scripts used to create it. > > + However, the gcc toolchain there is built with --disable-lib32 (so > no multilib) and with --disable-gomp (the default) > > + Moreover, the pthreads library is not included in the distro > > + I believe building R requires GOMP and pthreads, hence I tried to > modify the scripts to add these > > - Installing your own toolchain > > + Read the instructions in the section "How To Build Your Own Distro" > > + You don't have to rebuild everything in components-12.2.7z: you > only need the original binutils-2.25.7z and your own build of > mingw-w64+gcc.7z to replace Rtools's gcc > > + You will need to run a modified version of Stephan's > mingw-w64+gcc.sh script. Besides the gcc source code, you will also > need to download the pthreads-w32 source code from > https://www.sourceware.org/pthreads-win32/ > > + Here are the changes I made to the mingw-w64+gcc.sh script: > > -------------------------------------------------- > > diff --git a/mingw-w64+gcc.sh b/mingw-w64+gcc.sh > index 2402ffc..fd44e76 100644 > --- a/mingw-w64+gcc.sh > +++ b/mingw-w64+gcc.sh > @@ -8,6 +8,7 @@ source 0_append_distro_path.sh > 7z x '-oC:\Temp\gcc' gmp-6.0.0a.tar > NUL || fail_with gmp-6.0.0a.tar > - EPIC FAIL > 7z x '-oC:\Temp\gcc' mpfr-3.1.2.tar > NUL || fail_with mpfr-3.1.2.tar > - EPIC FAIL > 7z x '-oC:\Temp\gcc' mpc-1.0.2.tar > NUL || fail_with mpc-1.0.2.tar - EPIC > FAIL > +7z x '-oC:\Temp\gcc' pthreads-w32-2-9-1-release.tar > NUL || > fail_with pthreads-w32-2-9-1-release.tar - EPIC FAIL > > patch -Z -d /c/temp/gcc/mpfr-3.1.2 -p1 < mpfr.patch > > @@ -25,6 +26,14 @@ make all install "CFLAGS=-s -O3" || fail_with > mingw-w64 make - EPIC FAIL > cd /c/temp/gcc > rm -rf build src > > +# Build pthreads-w32. > +cd pthreads-w32-2-9-1-release > +make clean GC > + > +cp libpthreadGC2.a ../dest/x86_64-w64-mingw32/lib/libpthread.a > +cp pthread.h sched.h semaphore.h ../dest/x86_64-w64-mingw32/include > +cp pthreadGC2.dll $X_DISTRO_ROOT/bin/ > + > # Prepare to build gcc - set up the in-tree builds of gmp, mpfr, and mpc. > mv gcc-4.9.2 src > mv gmp-6.0.0 src/gmp > @@ -40,7 +49,7 @@ cp -r dest/x86_64-w64-mingw32/include > src/gcc/winsup/mingw/include > # Configure. > mkdir build > cd build > -../src/configure --enable-languages=c,c++ --build=x86_64-w64-mingw32 > --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 > --disable-multilib --prefix=/c/temp/gcc/dest > --with-sysroot=/c/temp/gcc/dest --disable-libstdcxx-pch --disable-lto > --disable-nls --disable-shared --disable-win32-registry > --enable-checking=release --with-tune=haswell || fail_with gcc > configure - EPIC FAIL > +../src/configure --enable-languages=c,c++,fortran > --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32 > --target=x86_64-w64-mingw32 --disable-multilib > --prefix=/c/temp/gcc/dest --with-sysroot=/c/temp/gcc/dest > --disable-libstdcxx-pch --disable-lto --disable-nls --disable-shared > --disable-win32-registry --enable-libgomp --enable-checking=release > --with-tune=haswell || fail_with gcc configure - EPIC FAIL > > # --enable-languages=c,c++ : I want C and C++ only. > # --build=x86_64-w64-mingw32 : I want a native compiler. > > -------------------------------------------------- > > + After running this script, you'll get your own mingw-w64+gcc.7z. > > - You'll need some patience -- the full 3-stage bootstrap of gcc > took 10 hours for me > > - You can replace the "make bootstrap" in the script by "make > bootstrap2" to omit the last stage. > > + Install your toolchain: > > - If you haven't done so, install Rtools. We will still use the > command line utilities in C:\Rtools\bin > > - Make a new directory, e.g., C:\Rtools\nuwen and unpack > binutils-2.25.7z and mingw-w64+gcc.7z there > > - Put the above directory in your PATH, in front of any other > toolchain locations such as C:\Rtools\gcc-4.6.3\bin (it may be better > to remove the latter from your PATH) > > - Now for the installation of R: > > + Get the latest R-patched sources (rather than 3.1.2, because > Duncan (thanks!) have added some useful changes) > > + Make sure you have the prerequisites for building R (see the R > Installation and Administration Manual) > > - In particular, the source files for the recommended packages, > the support files for Tcl, and the "extsoft" headers and libraries > > + In src/gnuwin32, copy MkRules.dist to MkRules.local and apply the > following patch: > > -------------------------------------------------- > > --- MkRules.local 2015-03-02 13:57:38.601903500 -0800 > +++ MkRules.local 2015-03-06 10:43:44.708581800 -0800 > @@ -52,6 +52,7 @@ > # BINPREF = > # prefix for 64-bit: path or x86_64-w64-mingw32- > # BINPREF64 = x86_64-w64-mingw32- > +BINPREF64 = > > # Others use a -m64 or -m32 option to select architectures > # M_ARCH = > @@ -64,6 +65,7 @@ > > # 32- or 64-bit Windows? > # WIN = 32 > +WIN = 64 > > # The gcc 4.9.2 64 bit toolchain is set up for the 'medium code' > model and needs > # to remove the .refptr entries from the exports list; this is the default > @@ -135,12 +137,12 @@ > # Full paths of extra DLLs that need to be shipped > # e.g > # DLLs32 = c:/R/bin/pthreadGC2-w32.dll > -# DLLs64 = c:/R/bin64/pthreadGC2-w64.dll > +DLLs64 = c:/MinGW/bin/pthreadGC2.dll > # DLLs32 = > # DLLs64 = > > # Define this to 1 if using the gcc 4.9.2 toolchain with dynamic linking > -# COPY_RUNTIME_DLLS = > +COPY_RUNTIME_DLLS = 1 > > ## ====== configuration macros for building MSI installer =========== > > -------------------------------------------------- > > + (I don't know whether the DLLs64 and COPY_RUNTIME_DLLS changes > above are necessary or not. C:/MinGW/bin is where I put the pthreads > DLL that was built earlier) > > + Run "make all recommended". If this works, you should have a > working R, built using your new toolchain! > > > > Additional notes: > > - I tried using my new R to install Rcpp from source, but this failed > because the R build scripts was not able to determine the right set of > symbols to be exported in the Rcpp DLL. To solve this, edit the file > etc/x64/Makeconf under your R source tree, replacing > > NM_FILTER = | sed -e '/.refptr./d' > > by > > NM_FILTER = | sed -e '/.refptr./d; /\.weak\./d' > > > Hope this helps, > > - Hsiu-Khuern > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
