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Minor tweaks & updates. 

From-SVN: r17374
This commit is contained in:
Jeff Law 1998-01-15 16:42:59 -07:00
parent 4bcdb76dd5
commit 57718ce6d3
1 changed files with 16 additions and 10 deletions
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gcc/INSTALL
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@ -3,12 +3,12 @@ This file documents the installation of the GNU compiler. Copyright
may copy, distribute, and modify it freely as long as you preserve this
copyright notice and permission notice.
Note most of this information is out of date and superceded by the EGCS
install procedures. It is provided for historical reference only.
Installing GNU CC
*****************
Note most of this information is out of date and superceded by the
EGCS install procedures. It is provided for historical reference only.
Here is the procedure for installing GNU CC on a Unix system. See
*Note VMS Install::, for VMS systems. In this section we assume you
compile in the same directory that contains the source files; see *Note
@ -122,9 +122,7 @@ and includes all the necessary compilation tools and libraries.
This option does not cause the GNU linker to be installed; it
just modifies the behavior of GNU CC to work with the GNU
linker. Specifically, it inhibits the installation of
`collect2', a program which otherwise serves as a front-end
for the system's linker on most configurations.
linker.
`--with-stabs'
On MIPS based systems and on Alphas, you must specify whether
@ -164,6 +162,16 @@ and includes all the necessary compilation tools and libraries.
`--nfp' currently has no effect, though perhaps there are
other systems where it could usefully make a difference.
`--enable-haifa'
`--disable-haifa'
Use `--enable-haifa' to enable use of an experimental
instruction scheduler (from IBM Haifa). This may or may not
produce better code. Some targets on which it is known to be
a win enable it by default; use `--disable-haifa' to disable
it in these cases. `configure' will print out whether the
Haifa scheduler is enabled when it is run.
`--enable-threads=TYPE'
Certain systems, notably Linux-based GNU systems, can't be
relied on to supply a threads facility for the Objective C
@ -1972,10 +1980,8 @@ VAX C, to avoid a problem in case `gcclib.olb' is not yet available.
`collect2'
==========
Many target systems do not have support in the assembler and linker
for "constructors"--initialization functions to be called before the
official "start" of `main'. On such systems, GNU CC uses a utility
called `collect2' to arrange to call these functions at start time.
GNU CC uses a utility called `collect2' on nearly all systems to
arrange to call various initialization functions at start time.
The program `collect2' works by linking the program once and looking
through the linker output file for symbols with particular names