diff options
| -rw-r--r-- | hurd/running/debian/porting/gcc.mdwn | 2 | ||||
| -rw-r--r-- | hurd/running/debian/porting/gcc/c++.mdwn | 39 |
2 files changed, 41 insertions, 0 deletions
diff --git a/hurd/running/debian/porting/gcc.mdwn b/hurd/running/debian/porting/gcc.mdwn index ec412b9c..c15f40aa 100644 --- a/hurd/running/debian/porting/gcc.mdwn +++ b/hurd/running/debian/porting/gcc.mdwn @@ -42,3 +42,5 @@ Additionally: might/should often contain those for us (and GNU/k*BSD) as well. * [[`libmudflap`|libmudflap]]. + + * [[C++]]. diff --git a/hurd/running/debian/porting/gcc/c++.mdwn b/hurd/running/debian/porting/gcc/c++.mdwn new file mode 100644 index 00000000..1d64b9b5 --- /dev/null +++ b/hurd/running/debian/porting/gcc/c++.mdwn @@ -0,0 +1,39 @@ +[[meta copyright="Copyright © 2008 Free Software Foundation, Inc."]] + +[[meta license="""[[toggle id="license" text="GFDL 1.2+"]][[toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled +[[GNU_Free_Documentation_License|/fdl]]."]]"""]] + +Modify the [[building/cross-compiling]] shell script to configure GCC for +building GCC with C++ support when building its second (i.e., final) version. + +Compiling a most-trivial C++ program used to work with GCC 4.2 and 4.3 (and the +resulting binaries would also work), but linking fails with GCC SVN trunk: + + $ $TARGET-g++ -Wall a.cc -lpthread + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__multf3' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__fixunstfsi' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__subtf3' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__divtf3' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__copysigntf3' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__addtf3' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__lttf2' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__floatsitf' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__netf2' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__floatunsitf' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__eqtf2' + /home/thomas/tmp/gnu-0/lib/gcc/i586-pc-gnu/4.4.0/../../../../i586-pc-gnu/lib/libgcc_s.so: undefined reference to `__fabstf2' + collect2: ld returned 1 exit status + +Whether this defect report also applies to a natively-build GCC from SVN trunk +has not yet been checked. + +[[Thomas_Schwinge|tschwinge]] suspects the problem to be a configuration issue +of a GCC helper library, whose configuration setup has changed after GCC 4.3. + +The need for `-lpthread` is another story. See the Debian glibc patches +repository for details. |