[Bug c/30832] New: [regression] --with-sysroot=foobar wrong handled

["mtrudel at gmx dot ch" <gcc-bugzilla at gcc dot gnu dot org>]

Configuring with:
/usr/local/src/gcc/configure --prefix=/home/Marco/Desktop/manual-test/gcc
--with-sysroot=/home/Marco/Desktop/compile-lin-lin/gcc-XYZXYZ-lin/sys-root
--enable-languages=c,c++ --with-gmp=/home/Marco/Desktop/compile-lin-lin/gmp-out
--with-mpfr=/home/Marco/Desktop/compile-lin-lin/mpfr-out

leads to a failing make:
/home/Marco/Desktop/manual-test/build/./gcc/xgcc
-B/home/Marco/Desktop/manual-test/build/./gcc/
-B/home/Marco/Desktop/manual-test/gcc/i686-pc-linux-gnu/bin/
-B/home/Marco/Desktop/manual-test/gcc/i686-pc-linux-gnu/lib/ -isystem
/home/Marco/Desktop/manual-test/gcc/i686-pc-linux-gnu/include -isystem
/home/Marco/Desktop/manual-test/gcc/i686-pc-linux-gnu/sys-include -g
-fkeep-inline-functions -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem
./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  
-I. -I. -I../.././gcc -I/usr/local/src/gcc/libgcc -I/usr/local/src/gcc/libgcc/.
-I/usr/local/src/gcc/libgcc/../gcc -I/usr/local/src/gcc/libgcc/../include
-I/usr/local/src/gcc/libgcc/../libdecnumber -I../../libdecnumber -o _muldi3.o
-MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c
/usr/local/src/gcc/libgcc/../gcc/libgcc2.c \
          -fvisibility=hidden -DHIDE_EXPORTS
In file included from
/home/Marco/Desktop/compile-lin-lin/gcc-XYZXYZ-lin/sys-root/usr/include/errno.h:36,
                 from /usr/local/src/gcc/libgcc/../gcc/tsystem.h:96,
                 from /usr/local/src/gcc/libgcc/../gcc/libgcc2.c:33:
/home/Marco/Desktop/compile-lin-lin/gcc-XYZXYZ-lin/sys-root/usr/include/bits/errno.h:25:26:
error: linux/errno.h: No such file or directory
In file included from
/home/Marco/Desktop/compile-lin-lin/gcc-XYZXYZ-lin/sys-root/usr/include/bits/posix1_lim.h:153,
                 from
/home/Marco/Desktop/compile-lin-lin/gcc-XYZXYZ-lin/sys-root/usr/include/limits.h:145,
                 from
/home/Marco/Desktop/manual-test/build/./gcc/include/limits.h:122,
                 from
/home/Marco/Desktop/manual-test/build/./gcc/include/syslimits.h:7,
                 from
/home/Marco/Desktop/manual-test/build/./gcc/include/limits.h:11,
                 from /usr/local/src/gcc/libgcc/../gcc/tsystem.h:108,
                 from /usr/local/src/gcc/libgcc/../gcc/libgcc2.c:33:
/home/Marco/Desktop/compile-lin-lin/gcc-XYZXYZ-lin/sys-root/usr/include/bits/local_lim.h:36:26:
error: linux/limits.h: No such file or directory
make[3]: *** [_muldi3.o] Error 1
make[3]: Leaving directory
`/home/Marco/Desktop/manual-test/build/i686-pc-linux-gnu/libgcc'

In sysroot, I have glibc and glibc-devel. This worked with gcc 4.2 and with gcc
4.3 for every build, host, target combination except all linux-gnu. The most
interesting one is a build=linux host=mingw target=linux where sysroot contains
the exactly same files. This, as said already, works...

This should work at least because I use --with-sysroot and not
--with-build-sysroot.


-- 
           Summary: [regression] --with-sysroot=foobar wrong handled
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: mtrudel at gmx dot ch
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30832