compile errors

Hello everyone, Sorry to bother you all.I am a student and desire to become researchers like you all out there. While building the project osmocom I got an unique error which no-one in the mailing lists have got yet.It says that the header file 'signal.h' is missing in osmocore.I am just uanble to figure it how it is unable to include the header file. please help.By the way I am using the gnuarm-3.4.3 as shown on the osmocom-bb website. roy@roy:~/osmocom-bb$ cd src roy@roy:~/osmocom-bb/src$ make cd shared/libosmocore/build-target && ../configure \ --host=arm-elf-linux --disable-vty --enable-panic-infloop \ --disable-shared --disable-talloc --disable-tests \ CC="arm-elf-gcc" CFLAGS="-Os -ffunction-sections -I/home/roy/osmocom-bb/src/target/firmware/include -nostartfiles -nodefaultlibs" configure: WARNING: if you wanted to set the --build type, don't use --host. If a cross compiler is detected then cross compile mode will be used checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for arm-elf-linux-strip... no checking for strip... strip checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking whether make sets $(MAKE)... (cached) yes checking for arm-elf-linux-gcc... arm-elf-gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... yes checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether arm-elf-gcc accepts -g... yes checking for arm-elf-gcc option to accept ISO C89... none needed checking for style of include used by make... GNU checking dependency style of arm-elf-gcc... gcc3 checking build system type... i686-pc-linux-gnu checking host system type... arm-elf-linux-gnu checking for a sed that does not truncate output... /bin/sed checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for fgrep... /bin/grep -F checking for ld used by arm-elf-gcc... /home/roy/osmocom-bb/gnuarm-3.4.3/arm-elf/bin/ld checking if the linker (/home/roy/osmocom-bb/gnuarm-3.4.3/arm-elf/bin/ld) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... no checking for arm-elf-linux-dumpbin... no checking for arm-elf-linux-link... no checking for dumpbin... no checking for link... link -dump -symbols configure: WARNING: using cross tools not prefixed with host triplet checking the name lister (link -dump -symbols) interface... BSD nm checking whether ln -s works... yes checking the maximum length of command line arguments... 805306365 checking whether the shell understands some XSI constructs... yes checking whether the shell understands "+="... yes checking for /home/roy/osmocom-bb/gnuarm-3.4.3/arm-elf/bin/ld option to reload object files... -r checking for arm-elf-linux-objdump... no checking for objdump... objdump checking how to recognize dependent libraries... pass_all checking for arm-elf-linux-ar... no checking for ar... ar checking for arm-elf-linux-strip... strip checking for arm-elf-linux-ranlib... no checking for ranlib... ranlib checking command to parse link -dump -symbols output from arm-elf-gcc object... failed checking how to run the C preprocessor... arm-elf-gcc -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... no checking for inttypes.h... no checking for stdint.h... yes checking for unistd.h... yes checking for dlfcn.h... no checking for objdir... .libs checking if arm-elf-gcc supports -fno-rtti -fno-exceptions... no checking for arm-elf-gcc option to produce PIC... -fPIC -DPIC checking if arm-elf-gcc PIC flag -fPIC -DPIC works... yes checking if arm-elf-gcc static flag -static works... yes checking if arm-elf-gcc supports -c -o file.o... yes checking if arm-elf-gcc supports -c -o file.o... (cached) yes checking whether the arm-elf-gcc linker (/home/roy/osmocom-bb/gnuarm-3.4.3/arm-elf/bin/ld) supports shared libraries... yes checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... no checking whether to build static libraries... yes checking for ANSI C header files... (cached) yes checking execinfo.h usability... no checking execinfo.h presence... no checking for execinfo.h... no checking sys/select.h usability... no checking sys/select.h presence... no checking for sys/select.h... no checking if arm-elf-gcc supports -fvisibility=hidden... no configure: creating ./config.status config.status: creating libosmocore.pc config.status: creating libosmocodec.pc config.status: creating libosmovty.pc config.status: creating include/osmocom/Makefile config.status: creating include/osmocom/vty/Makefile config.status: creating include/osmocom/codec/Makefile config.status: creating include/osmocom/crypt/Makefile config.status: creating include/osmocore/Makefile config.status: creating include/osmocore/protocol/Makefile config.status: creating include/Makefile config.status: creating src/Makefile config.status: creating src/vty/Makefile config.status: creating src/codec/Makefile config.status: creating tests/Makefile config.status: creating tests/timer/Makefile config.status: creating tests/sms/Makefile config.status: creating tests/msgfile/Makefile config.status: creating tests/ussd/Makefile config.status: creating tests/smscb/Makefile config.status: creating Makefile config.status: creating config.h config.status: config.h is unchanged config.status: executing depfiles commands config.status: executing libtool commands cd shared/libosmocore/build-target && make make[1]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target' make all-recursive make[2]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target' Making all in include make[3]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include' Making all in osmocom make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocom' Making all in codec make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocom/codec' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocom/codec' Making all in crypt make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocom/crypt' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocom/crypt' make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocom' make[5]: Nothing to be done for `all-am'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocom' make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocom' Making all in osmocore make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocore' Making all in protocol make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocore/protocol' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocore/protocol' make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocore' make[5]: Nothing to be done for `all-am'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocore' make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include/osmocore' make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include' make[4]: Nothing to be done for `all-am'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include' make[3]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/include' Making all in src make[3]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/src' Making all in . make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/src' make[4]: Nothing to be done for `all-am'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/src' Making all in vty make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/src/vty' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/src/vty' Making all in codec make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/src/codec' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/src/codec' make[3]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/src' Making all in tests make[3]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/tests' make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/tests' make[4]: Nothing to be done for `all-am'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/tests' make[3]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target/tests' make[3]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target' make[3]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target' make[2]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target' make[1]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-target' cd shared/libosmocore/build-host && ../configure checking for a BSD-compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking for a thread-safe mkdir -p... /bin/mkdir -p checking for gawk... no checking for mawk... mawk checking whether make sets $(MAKE)... yes checking whether make sets $(MAKE)... (cached) yes checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for style of include used by make... GNU checking dependency style of gcc... gcc3 checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking for a sed that does not truncate output... /bin/sed checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for fgrep... /bin/grep -F checking for ld used by gcc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B checking the name lister (/usr/bin/nm -B) interface... BSD nm checking whether ln -s works... yes checking the maximum length of command line arguments... 805306365 checking whether the shell understands some XSI constructs... yes checking whether the shell understands "+="... yes checking for /usr/bin/ld option to reload object files... -r checking for objdump... objdump checking how to recognize dependent libraries... pass_all checking for ar... ar checking for strip... strip checking for ranlib... ranlib checking command to parse /usr/bin/nm -B output from gcc object... ok checking how to run the C preprocessor... gcc -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking for dlfcn.h... yes checking for objdir... .libs checking if gcc supports -fno-rtti -fno-exceptions... no checking for gcc option to produce PIC... -fPIC -DPIC checking if gcc PIC flag -fPIC -DPIC works... yes checking if gcc static flag -static works... yes checking if gcc supports -c -o file.o... yes checking if gcc supports -c -o file.o... (cached) yes checking whether the gcc linker (/usr/bin/ld) supports shared libraries... yes checking whether -lc should be explicitly linked in... no checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... yes checking for ANSI C header files... (cached) yes checking execinfo.h usability... yes checking execinfo.h presence... yes checking for execinfo.h... yes checking sys/select.h usability... yes checking sys/select.h presence... yes checking for sys/select.h... yes checking if gcc supports -fvisibility=hidden... yes configure: creating ./config.status config.status: creating libosmocore.pc config.status: creating libosmocodec.pc config.status: creating libosmovty.pc config.status: creating include/osmocom/Makefile config.status: creating include/osmocom/vty/Makefile config.status: creating include/osmocom/codec/Makefile config.status: creating include/osmocom/crypt/Makefile config.status: creating include/osmocore/Makefile config.status: creating include/osmocore/protocol/Makefile config.status: creating include/Makefile config.status: creating src/Makefile config.status: creating src/vty/Makefile config.status: creating src/codec/Makefile config.status: creating tests/Makefile config.status: creating tests/timer/Makefile config.status: creating tests/sms/Makefile config.status: creating tests/msgfile/Makefile config.status: creating tests/ussd/Makefile config.status: creating tests/smscb/Makefile config.status: creating Makefile config.status: creating config.h config.status: config.h is unchanged config.status: executing depfiles commands config.status: executing libtool commands cd shared/libosmocore/build-host && make make[1]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host' make all-recursive make[2]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host' Making all in include make[3]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include' Making all in osmocom make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom' Making all in vty make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom/vty' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom/vty' Making all in codec make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom/codec' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom/codec' Making all in crypt make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom/crypt' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom/crypt' make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom' make[5]: Nothing to be done for `all-am'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom' make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocom' Making all in osmocore make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocore' Making all in protocol make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocore/protocol' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocore/protocol' make[5]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocore' make[5]: Nothing to be done for `all-am'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocore' make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include/osmocore' make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include' make[4]: Nothing to be done for `all-am'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include' make[3]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/include' Making all in src make[3]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/src' Making all in . make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/src' make[4]: Nothing to be done for `all-am'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/src' Making all in vty make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/src/vty' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/src/vty' Making all in codec make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/src/codec' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/src/codec' make[3]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/src' Making all in tests make[3]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests' Making all in timer make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/timer' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/timer' Making all in sms make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/sms' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/sms' Making all in ussd make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/ussd' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/ussd' Making all in smscb make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/smscb' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/smscb' Making all in msgfile make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/msgfile' make[4]: Nothing to be done for `all'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests/msgfile' make[4]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests' make[4]: Nothing to be done for `all-am'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests' make[3]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host/tests' make[3]: Entering directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host' make[3]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host' make[2]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host' make[1]: Leaving directory `/home/roy/osmocom-bb/src/shared/libosmocore/build-host' make -C host/layer23 make[1]: Entering directory `/home/roy/osmocom-bb/src/host/layer23' Making all in include make[2]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include' Making all in osmocom make[3]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom' Making all in bb make[4]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb' Making all in common make[5]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb/common' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb/common' Making all in misc make[5]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb/misc' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb/misc' Making all in mobile make[5]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb/mobile' make[5]: Nothing to be done for `all'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb/mobile' make[5]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb' make[5]: Nothing to be done for `all-am'. make[5]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb' make[4]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom/bb' make[4]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom' make[4]: Nothing to be done for `all-am'. make[4]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom' make[3]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include/osmocom' make[3]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/include' make[3]: Nothing to be done for `all-am'. make[3]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include' make[2]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/include' Making all in src make[2]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/src' Making all in common make[3]: Entering directory `/home/roy/osmocom-bb/src/host/layer23/src/common' CC l1ctl.o l1ctl.c:33: fatal error: osmocore/signal.h: No such file or directory compilation terminated. make[3]: *** [l1ctl.o] Error 1 make[3]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/src/common' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/roy/osmocom-bb/src/host/layer23' make: *** [host/layer23/layer23] Error 2