Patches applied to the Debian version of GCC
--------------------------------------------

Debian specific patches can be found in the debian/patches directory.
Quilt is used as the patch system.  See /usr/share/doc/quilt/README.source
for details about quilt.

Patches are applied by calling `debian/rules patch'.  The `series'
file is constructed on the fly based on the files found in the to
debian/rules.patch "debian_patches" variable, configure scripts are
regenerated in the `patch' target. The gcc source is unpacked under
src/ this needs to be reflected in the patch header.

Running a single dejagnu test
-----------------------------

 - Find out the test suite containing the test, and the associated
   target (e.g. check-gcc in <build>/gcc, or check in <buildlibdir>/<lib>.

 - Find out the dejagnu test suite, e.g. guality.exp
   - If you have a log of the original testsuite run, search back for the
     .exp file before the fail.
   - Find the directory with the test and then the .exp in the nearest
     enclosing directory.

 - Set RUNTESTFLAGS to the testsuite name and the test name to run, e.g
     RUNTESTFLAGS="guality.exp=pr54519-2.c" make -e check-gcc
   The test name is just the base name, but might be the path relative
   from gcc/testsuite for C++ tests.