#3200: New programs installed with GCC
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Reporter: chris@… | Owner: lfs-book@…
Type: task | Status: new
Priority: normal | Milestone: 7.3
Component: Book | Version: SVN
Severity: normal | Keywords:
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Comment(by bdubbs@…):
It looks like binutils does need to be built with --enable-plugins in
Chapter 6. When I did that, gcc-ar --help gave me the same output as ar
--help. It's possible that binutils have overcome the need to the
gcc-{ar,nm,ranlib} wrappers.
Looking at the source for gcc-ar, it just executes ar with the argument '
--plugin plugin-name'.
There is an option --enable-lto (link time optimization) in both binutils
and gcc that we may want to add.
In gcc, with the --enable-lto option, there are two files installed:
/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.2/{lto-wrapper,lto1}
I did find http://crpppc19.epfl.ch/cgi-bin/man/man2html?gcc-ar-4.7+1
For reference, ar creates an archive (.a) file. nm extracts symbols from
object files (executables, .o files, .so.1 files, etc). ranlib creates an
index in a .a file for linking efficiency.
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