手機 - Zinwa Q25 - Debian - 解決classpath #error Endianess not declared問題


問題如下： 

In file included from fdlibm.h:36,
                 from e_atan2.c:42:
ieeefp.h:164:2: error: #error Endianess not declared!!
  164 | #error Endianess not declared!!
      |  ^~~~~
In file included from fdlibm.h:40:
mprec.h:78:1: error: unknown type name 'Exactly'
   78 | Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined.
      | ^~~~~~~
mprec.h:78:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'of'
   78 | Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined.
      |             ^~
mprec.h:78:13: error: unknown type name 'of'
In file included from mprec.h:34,
                 from dtoa.c:31:
ieeefp.h:164:2: error: #error Endianess not declared!!
  164 | #error Endianess not declared!!
      |  ^~~~~
fdlibm.h:283:2: error: #error Must define endianness
  283 | #error Must define endianness
      |  ^~~~~
mprec.h:78:1: error: unknown type name 'Exactly'
   78 | Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined.
      | ^~~~~~~
mprec.h:78:13: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'of'
   78 | Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined.
      |             ^~
mprec.h:78:13: error: unknown type name 'of'
e_atan2.c: In function 'ClasspathMath___ieee754_atan2':
fdlibm.h:322:5: error: unknown type name 'ieee_double_shape_type'; did you mean 'ieee_float_shape_type'?
  322 |     ieee_double_shape_type ew_u;                                  \
      |     ^~~~~~~~~~~~~~~~~~~~~~
e_atan2.c:69:9: note: in expansion of macro 'EXTRACT_WORDS'
   69 |         EXTRACT_WORDS(hx,lx,x);
      |         ^~~~~~~~~~~~~
fdlibm.h:323:9: error: request for member 'value' in something not a structure or union
  323 |     ew_u.value = (d);                                             \
      |         ^
e_atan2.c:69:9: note: in expansion of macro 'EXTRACT_WORDS'
   69 |         EXTRACT_WORDS(hx,lx,x);
      |         ^~~~~~~~~~~~~
fdlibm.h:324:17: error: request for member 'parts' in something not a structure or union
  324 |     (ix0) = ew_u.parts.msw;                                       \
      |                 ^
e_atan2.c:69:9: note: in expansion of macro 'EXTRACT_WORDS'
   69 |         EXTRACT_WORDS(hx,lx,x);
      |         ^~~~~~~~~~~~~
fdlibm.h:325:17: error: request for member 'parts' in something not a structure or union
  325 |     (ix1) = ew_u.parts.lsw;                                       \
      |                 ^
e_atan2.c:69:9: note: in expansion of macro 'EXTRACT_WORDS'
   69 |         EXTRACT_WORDS(hx,lx,x);
      |         ^~~~~~~~~~~~~
dtoa.c: In function '_Jv_dtoa_r':
fdlibm.h:322:5: error: unknown type name 'ieee_double_shape_type'; did you mean 'ieee_float_shape_type'?
  322 |     ieee_double_shape_type ew_u;                                  \
      |     ^~~~~~~~~~~~~~~~~~~~~~
e_atan2.c:71:9: note: in expansion of macro 'EXTRACT_WORDS'
   71 |         EXTRACT_WORDS(hy,ly,y);
      |         ^~~~~~~~~~~~~
dtoa.c:252:22: error: storage size of 'd' isn't known
  252 |   union double_union d, d2, eps;
      |                      ^
fdlibm.h:323:9: error: request for member 'value' in something not a structure or union
  323 |     ew_u.value = (d);                                             \
      |         ^

解法如下： 

$ vim native/fdlibm/ieeefp.h +11
    #if defined(__arm__) || defined(__aarch64__) || defined(__thumb__)