I would find it useful if there were ready-to-use 64bit Windows binaries of the toolchain available for download, as we already have for Linux. GCC and LD need a lot of memory when compiling/linking (with LTO) template-heavy C++ code even if the resulting program is small, and the 32bit executable can of course only use 4 GB, while a 64bit one can use much more. With some fiddling, I was able to produce a working 64bit toolchain for windows based on the 7-2017-q4 release, based on these steps:
* MinGW-w64 must be installed, e.g. via the Ubuntu package "gcc-mingw-w64-x86-64". The commands "x86_64-w64-mingw32-gcc" and "x86_64-w64-mingw32-g++" need to work.
* wine must *not* be installed, as this allows Windows executables to run directly (like ./test.exe), which causes libelf to think it is building on Windows, which will break the build.
* In the file build-toolchain.sh, the lines 668 and 799 must each be replaced by:
saveenvvar LDFLAGS "-L$BUILDDIR_MINGW/host-libs/zlib/lib -Wl,/usr/x86_64-w64-mingw32/lib/CRT_glob.o"
* In the file build-common.sh, the lines 295, 383, 384, 403 must be changed as follows:
PYTHON_WIN_PACK=$PYTHON_WIN.amd64.msi
HOST_MINGW=x86_64-w64-mingw32
HOST_MINGW_TOOL=x86_64-w64-mingw32
INSTALL_PACKAGE_NAME=gcc-$TARGET-$GCC_VER_NAME-$RELEASEVER
The mentioned changes to the build .sh scripts (attached) seem to be quite hackish, since no 32bit compiler is built any more. However, I wasn't able to do it properly and would appreciate it if this could be fixed, added to upstream and used to provide Windows 64bit binary downloads.
Dear maintainers,
I would find it useful if there were ready-to-use 64bit Windows binaries of the toolchain available for download, as we already have for Linux. GCC and LD need a lot of memory when compiling/linking (with LTO) template-heavy C++ code even if the resulting program is small, and the 32bit executable can of course only use 4 GB, while a 64bit one can use much more. With some fiddling, I was able to produce a working 64bit toolchain for windows based on the 7-2017-q4 release, based on these steps:
* MinGW-w64 must be installed, e.g. via the Ubuntu package "gcc-mingw- w64-x86- 64". The commands "x86_64- w64-mingw32- gcc" and "x86_64- w64-mingw32- g++" need to work. MINGW/host- libs/zlib/ lib -Wl,/usr/ x86_64- w64-mingw32/ lib/CRT_ glob.o" WIN_PACK= $PYTHON_ WIN.amd64. msi MINGW=x86_ 64-w64- mingw32 MINGW_TOOL= x86_64- w64-mingw32 PACKAGE_ NAME=gcc- $TARGET- $GCC_VER_ NAME-$RELEASEVE R
* wine must *not* be installed, as this allows Windows executables to run directly (like ./test.exe), which causes libelf to think it is building on Windows, which will break the build.
* In the file build-toolchain.sh, the lines 668 and 799 must each be replaced by:
saveenvvar LDFLAGS "-L$BUILDDIR_
* In the file build-common.sh, the lines 295, 383, 384, 403 must be changed as follows:
PYTHON_
HOST_
HOST_
INSTALL_
* For the older version 6-2017-q2, this commit has to be applied manually, as it fixes a bug breaking windows 64bit build: https:/ /sourceware. org/git/ gitweb. cgi?p=binutils- gdb.git; a=commit; h=49f4617bf4b86 a0b057f3477d57f fbf7c998b229 The current 7-2017-q4 version already contains this fix.
Then the build can be performed as usual. You can download the 64bit Windows binaries I made here: https:/ /my.hidrive. com/share/ 42lbe40l- 5
The mentioned changes to the build .sh scripts (attached) seem to be quite hackish, since no 32bit compiler is built any more. However, I wasn't able to do it properly and would appreciate it if this could be fixed, added to upstream and used to provide Windows 64bit binary downloads.
Thanks!