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 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
