gcc在编译__exp10()出现段错误

blackoil

aaa-gcc
-B/root/newlib/aaa/newlib/
-isystem /root/newlib/aaa/newlib/targ-include
-isystem /root/aaa-newlib/newlib/libc/include
-B/root/newlib/aaa/libgloss/aaa
-L/root/newlib/aaa/libgloss/libnosys
-L/root/aaa-newlib/libgloss/aaa
-DPACKAGE_NAME=\"newlib\"
-DPACKAGE_TARNAME=\"newlib\"
-DPACKAGE_VERSION=\"2.2.0\"
-DPACKAGE_STRING=\"newlib\ 2.2.0\"
-DPACKAGE_BUGREPORT=\"\"
-DPACKAGE_URL=\"\"
-I.
-I/root/aaa-newlib/newlib/libc/stdlib
-fno-builtin
      -g -O2 -c -o lib_a-__exp10.o `test -f '__exp10.c' || echo '/root/aaa-newlib/newlib/libc/stdlib/'`__exp10.c

项目需要编译newlib，gcc在编译__exp10()出现段错误。单独抽出__exp10()代码，编译通过。用makefile编译就不行。

是不是这里的问题`test -f '__exp10.c' || echo '/root/aaa-newlib/newlib/libc/stdlib/'`__exp10.c