[Bug target/55344] New: Cross compiling for alpha-linux fails because <signal.h> doesn't exist

[dan at danny dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55344

             Bug #: 55344
           Summary: Cross compiling for alpha-linux fails because
                    <signal.h> doesn't exist
    Classification: Unclassified
           Product: gcc
           Version: 4.7.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dan@danny.cz


Created attachment 28702
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28702
fix cross build

Cross compiling libgcc for alpha-linux fails because <signal.h> included from
libgcc/config/alpha/linux-unwind.h doesn't exist

/builddir/build/BUILD/gcc-4.7.2-20121114-aarch64/alpha-linux-gnu/./gcc/xgcc
-B/builddir/build/BUILD/gcc-4.7.2-20121114-aarch64/alpha-linux-gnu/./gcc/
-B/usr/alpha-linux-gnu/bin/ -B/usr/alpha-linux-gnu/lib/ -isystem
/usr/alpha-linux-gnu/include -isystem /usr/alpha-linux-gnu/sys-include    -g
-O2 -mieee -O2  -g -O2 -mieee -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall
-Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fPIC -mieee
-g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -Dinhibit_libc  -fPIC
-mieee -I. -I. -I../.././gcc -I../../../gcc-4.7.2-20121114-aarch64/libgcc
-I../../../gcc-4.7.2-20121114-aarch64/libgcc/.
-I../../../gcc-4.7.2-20121114-aarch64/libgcc/../gcc
-I../../../gcc-4.7.2-20121114-aarch64/libgcc/../include  -DHAVE_CC_TLS  -o
unwind-c.o -MT unwind-c.o -MD -MP -MF unwind-c.dep -fexceptions -c
../../../gcc-4.7.2-20121114-aarch64/libgcc/unwind-c.c 
In file included from
../../../gcc-4.7.2-20121114-aarch64/libgcc/unwind-dw2.c:376:0:
./md-unwind-support.h:28:20: fatal error: signal.h: No such file or directory
compilation terminated.