On Mon, Dec 3, 2012 at 9:03 PM, Etienne Le Sueur <elesu...@vmware.com> wrote: > First ping... anyone?
A sysroot of /dev/null does not sound like something that we should support. If we do the semantics of this setting should be documented somewhere. Richard. > On 28/11/12 1:21 PM, Etienne Le Sueur wrote: >> >> Hi, >> >> With a sysroot of /dev/null, passing a .i file to cc1plus causes it to >> attempt to open /dev/null/usr/include, which fails. This causes problems for >> ccache and distcc. There is an open bugzilla ticket at [1]. >> >> The patch below applies on to 4.6.3, but it appears the bug is still >> present in 4.7.2. >> >> If this is not the correct way to solve this problem, please suggest a >> better approach. >> >> Regards, >> Etienne Le Sueur >> >> [1] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54560 >> >> >> diff --git a/gcc-4.6.3/gcc/cp/lang-specs.h b/gcc-4.6.3/gcc/cp/lang-specs.h >> index a73aba3..873609a 100644 >> --- a/gcc-4.6.3/gcc/cp/lang-specs.h >> +++ b/gcc-4.6.3/gcc/cp/lang-specs.h >> @@ -64,5 +64,5 @@ along with GCC; see the file COPYING3. If not see >> {".ii", "@c++-cpp-output", 0, 0, 0}, >> {"@c++-cpp-output", >> "%{!M:%{!MM:%{!E:\ >> - cc1plus -fpreprocessed %i %(cc1_options) %2\ >> + cc1plus -fpreprocessed %i %I %(cc1_options) %2\ >> %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, >> diff --git a/gcc-4.6.3/gcc/gcc.c b/gcc-4.6.3/gcc/gcc.c >> index 75f522e..214ef29 100644 >> --- a/gcc-4.6.3/gcc/gcc.c >> +++ b/gcc-4.6.3/gcc/gcc.c >> @@ -950,7 +950,7 @@ static const struct compiler default_compilers[] = >> %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0}, >> {".i", "@cpp-output", 0, 0, 0}, >> {"@cpp-output", >> - "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) >> %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, >> + "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %I %(cc1_options) >> %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0}, >> {".s", "@assembler", 0, 0, 0}, >> {"@assembler", >> "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, >> 0, 0}, >> >
