#12825: Fine-tune auto-detection of whether to install GCC
----------------------------------+-----------------------------------------
Reporter: jdemeyer | Owner: GeorgSWeber
Type: defect | Status: needs_review
Priority: blocker | Milestone: sage-5.0
Component: build | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers: Dan Drake, Leif Leonhardy
Authors: Jeroen Demeyer | Merged in:
Dependencies: | Stopgaps:
----------------------------------+-----------------------------------------
Old description:
> 1. GCC-4.7.x on ia64 is very broken. We should install GCC in this case.
> Note that currently it won't actually work as MPIR and MPFR fail to build
> with gcc-4.7.x on ia64. For MPIR, see #11616.
>
> 2. When Debian multiarch is detected, do not install GCC. The stderr of
> "gcc -v -E -x c /dev/null" says:
> {{{
> Using built-in specs.
> COLLECT_GCC=gcc
> COLLECT_LTO_WRAPPER=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2
> /lto-wrapper
> Target: x86_64-linux-gnu
> Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
> 4.5.2-8ubuntu4' --with-bugurl=file:///usr/share/doc/gcc-4.5/README.Bugs
> --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-
> suffix=-4.5 --enable-shared --enable-multiarch --with-multiarch-
> defaults=x86_64-linux-gnu --enable-linker-build-id --with-system-zlib
> --libexecdir=/usr/lib/x86_64-linux-gnu --without-included-gettext
> --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.5
> --libdir=/usr/lib/x86_64-linux-gnu --enable-nls --with-sysroot=/
> --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes
> --enable-plugin --enable-gold --enable-ld=default --with-plugin-
> ld=ld.gold --enable-objc-gc --disable-werror --with-arch-32=i686 --with-
> tune=generic --enable-checking=release --build=x86_64-linux-gnu
> --host=x86_64-linux-gnu --target=x86_64-linux-gnu
> Thread model: posix
> gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)
> COLLECT_GCC_OPTIONS='-v' '-c' '-mtune=generic' '-march=x86-64'
> /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/cc1 -quiet -v
> /dev/null -D_FORTIFY_SOURCE=2 -quiet -dumpbase null -mtune=generic
> -march=x86-64 -auxbase null -version -fstack-protector -o /tmp/ccPmIBIJ.s
> GNU C (Ubuntu/Linaro 4.5.2-8ubuntu4) version 4.5.2 (x86_64-linux-gnu)
> compiled by GNU C version 4.5.2, GMP version 4.3.2, MPFR version
> 3.0.0-p8, MPC version 0.9
> warning: MPFR header version 3.0.0-p8 differs from library version 3.0.0.
> GGC heuristics: --param ggc-min-expand=100 --param ggc-min-
> heapsize=131072
> ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
> ignoring nonexistent directory "/usr/lib/x86_64-linux-gnu/gcc/x86_64
> -linux-gnu/4.5.2/../../../../../x86_64-linux-gnu/include"
> #include "..." search starts here:
> #include <...> search starts here:
> /usr/local/include
> /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/include
> /usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/include-fixed
> /usr/include/x86_64-linux-gnu
> /usr/include
> End of search list.
> }}}
> We can detect the '/usr/include/x86_64-linux-gnu' line here.
>
> 3. Sage currently doesn't build with GCC-4.7.x, see #12751.
>
> '''Apply''' to SAGE_ROOT repository:
> 1. [attachment:12825_detect_gcc.patch]
> 2. [attachment:12825_change_include_grep.patch]
New description:
1. GCC-4.7.x on ia64 is very broken. We should install GCC in this case.
Note that currently it won't actually work as MPIR and MPFR fail to build
with gcc-4.7.x on ia64. For MPIR, see #11616; for MPFR, see #12837.
2. When Debian multiarch is detected, do not install GCC. The stderr of
"gcc -v -E -x c /dev/null" says:
{{{
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2
/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.5.2-8ubuntu4' --with-bugurl=file:///usr/share/doc/gcc-4.5/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-
suffix=-4.5 --enable-shared --enable-multiarch --with-multiarch-
defaults=x86_64-linux-gnu --enable-linker-build-id --with-system-zlib
--libexecdir=/usr/lib/x86_64-linux-gnu --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.5
--libdir=/usr/lib/x86_64-linux-gnu --enable-nls --with-sysroot=/ --enable-
clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-
plugin --enable-gold --enable-ld=default --with-plugin-ld=ld.gold
--enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4)
COLLECT_GCC_OPTIONS='-v' '-c' '-mtune=generic' '-march=x86-64'
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/cc1 -quiet -v
/dev/null -D_FORTIFY_SOURCE=2 -quiet -dumpbase null -mtune=generic
-march=x86-64 -auxbase null -version -fstack-protector -o /tmp/ccPmIBIJ.s
GNU C (Ubuntu/Linaro 4.5.2-8ubuntu4) version 4.5.2 (x86_64-linux-gnu)
compiled by GNU C version 4.5.2, GMP version 4.3.2, MPFR version
3.0.0-p8, MPC version 0.9
warning: MPFR header version 3.0.0-p8 differs from library version 3.0.0.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory "/usr/lib/x86_64-linux-gnu/gcc/x86_64
-linux-gnu/4.5.2/../../../../../x86_64-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/include
/usr/lib/x86_64-linux-gnu/gcc/x86_64-linux-gnu/4.5.2/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
}}}
We can detect the '/usr/include/x86_64-linux-gnu' line here.
3. Sage currently doesn't build with GCC-4.7.x, see #12751.
'''Apply''' to SAGE_ROOT repository:
1. [attachment:12825_detect_gcc.patch]
2. [attachment:12825_change_include_grep.patch]
--
Comment (by leif):
Added a reference to the MPFR ticket (#12837, GCC 4.7.0 on ia64 issue).
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12825#comment:11>
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