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Diffstat (limited to 'gcc/doc/install.texi')
| -rw-r--r-- | gcc/doc/install.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 6dae9c9..1f53a99 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -939,6 +939,14 @@ option will adjust the ABI for AltiVec enhancements, as well as generate AltiVec code when appropriate. This option is only available for PowerPC systems. +@item --enable-__cxa_atexit +Define if you want to use __cxa_atexit, rather than atexit, to +register C++ destructors for local statics and global objects. +This is essential for fully standards-compliant handling of +destructors, but requires __cxa_atexit in libc. This option is currently +only available on sytems with GNU libc. When enabled, this will cause +@option{-fuse-cxa-exit} to be passed by default. + @item --enable-target-optspace Specify that target libraries should be optimized for code space instead of code speed. |