gcc-exp.xml 1.3 KB

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  1. <sect2>
  2. <title>Command explanations</title>
  3. <para><userinput>patch -Np1 -i ../gcc-&gcc-patch-version;.patch:</userinput>
  4. This patch fixes a few bugs. In particular it contains the "copy fix" and
  5. "var fix" documented at
  6. <ulink url="http://www.zipworld.com.au/~gschafer/lfs-tweaks.html"/>.</para>
  7. <para><userinput>--prefix=/static:</userinput> This is NOT a typo. GCC hard
  8. codes some paths while compiling and so we need to pass /static as the
  9. prefix during ./configure. We pass the real install prefix during the
  10. make install command later.</para>
  11. <para><userinput>--enable-languages=c:</userinput> This builds the C
  12. compiler. The C++ compiler will be built in Chapter 6, when we rebuild
  13. GCC. Other compilers are available as well. If they are needed,
  14. the --enable-languages parameter may be omitted.</para>
  15. <para><userinput>echo "#define HAVE_GAS_HIDDEN 1":</userinput>
  16. This defines the .hidden assembler directive so that we don't build
  17. a faulty Glibc later on.</para>
  18. <para><userinput>make BOOT_LDFLAGS=-static:</userinput>
  19. This is the equivalent to make LDFLAGS=-static as we use with other
  20. packages to compile them statically.</para>
  21. <para><userinput>ln -s gcc $LFS/static/bin/cc:</userinput> This
  22. creates the $LFS/static/bin/gcc symlink, which some packages need.</para>
  23. </sect2>