diff options
| author | Georg-Johann Lay <avr@gjlay.de> | 2013-01-07 15:57:08 +0000 |
|---|---|---|
| committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2013-01-07 15:57:08 +0000 |
| commit | 2a0950934ebc2630eb1ac667d808cd24190b61b7 (patch) | |
| tree | a79c1f81c2a4306ab2b78b9659d72f09fa5dbbbb /gcc/doc/install.texi | |
| parent | 383f9b34d1ec7a7adf7d83c64c9c31daccdf5505 (diff) | |
| download | gcc-2a0950934ebc2630eb1ac667d808cd24190b61b7.zip gcc-2a0950934ebc2630eb1ac667d808cd24190b61b7.tar.gz gcc-2a0950934ebc2630eb1ac667d808cd24190b61b7.tar.bz2 | |
PR target/PR54461
PR target/PR54461
* doc/install.texi (Cross-Compiler-Specific Options): Document
--with-avrlibc.
From-SVN: r194978
Diffstat (limited to 'gcc/doc/install.texi')
| -rw-r--r-- | gcc/doc/install.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 8273a87..dd28acc 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -1813,6 +1813,16 @@ being used as the target C library. This causes @code{__eprintf} to be omitted from @file{libgcc.a} on the assumption that it will be provided by @samp{newlib}. +@item --with-avrlibc +Specifies that @samp{AVR-Libc} is +being used as the target C library. This causes float support +functions like @code{__addsf3} to be omitted from @file{libgcc.a} on +the assumption that it will be provided by @file{libm.a}. For more +technical details, cf. @uref{http://gcc.gnu.org/PR54461,,PR54461}. +This option is only supported for the AVR target. It is not supported for +RTEMS configurations, which currently use newlib. The option is +supported since version 4.7.2 and is the default in 4.8.0 and newer. + @item --with-build-time-tools=@var{dir} Specifies where to find the set of target tools (assembler, linker, etc.) that will be used while building GCC itself. This option can be useful |