diff options
| -rw-r--r-- | gcc/ChangeLog | 2 | ||||
| -rw-r--r-- | gcc/doc/install.texi | 42 |
2 files changed, 32 insertions, 12 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2b944bc..0a3b978 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,7 @@ 2009-05-15 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + * doc/install.texi: Document MPC requirements, flags etc. + * builtins.c (do_mpc_arg1, fold_builtin_ccos): New. (fold_builtin_cexp): Ensure we get a complex REAL_TYPE. Evaluate constant arguments. diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 920d569..59526f9 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -344,8 +344,19 @@ not installed in your default library search path. Necessary to build libgcj, the GCJ runtime. -@end table +@item MPC Library version 0.6.0 (or later) + +Optional when building GCC@. Having this library will enable +additional optimizations on complex numbers. It can be downloaded +from @uref{http://www.multiprecision.org/mpc/}. The +@option{--with-mpc} configure option should be used if your MPC +Library is not installed in your default library search path. See +also @option{--with-mpc-lib} and @option{--with-mpc-include}. +Alternatively, if an MPC source distribution is found in a +subdirectory of your GCC sources named @file{mpc}, it will be built +together with GCC@. +@end table @heading Tools/packages necessary for modifying GCC @table @asis @@ -525,11 +536,11 @@ components of the binutils you intend to build alongside the compiler (@file{bfd}, @file{binutils}, @file{gas}, @file{gprof}, @file{ld}, @file{opcodes}, @dots{}) to the directory containing the GCC sources. -Likewise, the GMP and MPFR libraries can be automatically built together -with GCC. Unpack the GMP and/or MPFR source distributions in the -directory containing the GCC sources and rename their directories to -@file{gmp} and @file{mpfr}, respectively (or use symbolic links with the -same name). +Likewise the GMP, MPFR and MPC libraries can be automatically built +together with GCC. Unpack the GMP, MPFR and/or MPC source +distributions in the directory containing the GCC sources and rename +their directories to @file{gmp}, @file{mpfr} and @file{mpc}, +respectively (or use symbolic links with the same name). @html <hr /> @@ -1488,17 +1499,24 @@ When neither of these configure options are used, the default will be @itemx --with-mpfr=@var{pathname} @itemx --with-mpfr-include=@var{pathname} @itemx --with-mpfr-lib=@var{pathname} -If you do not have GMP (the GNU Multiple Precision library) and the -MPFR Libraries installed in a standard location and you want to build -GCC, you can explicitly specify the directory where they are installed -(@samp{--with-gmp=@var{gmpinstalldir}}, -@samp{--with-mpfr=@var{mpfrinstalldir}}). The +@itemx --with-mpc=@var{pathname} +@itemx --with-mpc-include=@var{pathname} +@itemx --with-mpc-lib=@var{pathname} +If you do not have GMP (the GNU Multiple Precision library), the MPFR +library and/or the MPC library installed in a standard location and +you want to build GCC, you can explicitly specify the directory where +they are installed (@samp{--with-gmp=@var{gmpinstalldir}}, +@samp{--with-mpfr=@var{mpfrinstalldir}}, +@samp{--with-mpc=@var{mpcinstalldir}}). The @option{--with-gmp=@var{gmpinstalldir}} option is shorthand for @option{--with-gmp-lib=@var{gmpinstalldir}/lib} and @option{--with-gmp-include=@var{gmpinstalldir}/include}. Likewise the @option{--with-mpfr=@var{mpfrinstalldir}} option is shorthand for @option{--with-mpfr-lib=@var{mpfrinstalldir}/lib} and -@option{--with-mpfr-include=@var{mpfrinstalldir}/include}. If these +@option{--with-mpfr-include=@var{mpfrinstalldir}/include}, also the +@option{--with-mpc=@var{mpcinstalldir}} option is shorthand for +@option{--with-mpc-lib=@var{mpcinstalldir}/lib} and +@option{--with-mpc-include=@var{mpcinstalldir}/include}. If these shorthand assumptions are not correct, you can use the explicit include and lib options directly. |