pike.git/ src/ configure.in

2001-07-20

2001-07-20 10:20:09 by Martin Stjernholm <mast@lysator.liu.se>

• 4046ee6b83d5890d08c24b80dad74f5cf1214b9c (19 lines) (+13/-6) ^{[ Show | Annotate ]}
  Branch: 7.9

Check that union init really does the right thing, not just that it
compiles.

Rev: src/configure.in:1.540

1: - AC_REVISION("$Id: configure.in,v 1.539 2001/07/20 10:00:04 mast Exp $") + AC_REVISION("$Id: configure.in,v 1.540 2001/07/20 10:20:09 mast Exp $")   AC_INIT(interpret.c)   AC_CONFIG_HEADER(machine.h)   
5157:      AC_MSG_CHECKING(if union initialization works)   AC_CACHE_VAL(pike_cv_have_union_init, [ -  AC_TRY_COMPILE([], [ -  struct foo {int a; char *b;}; -  struct bar {int c[2];}; +  AC_TRY_RUN([ +  struct foo {int a;}; +  struct bar {char b[2];};    union anything    {    struct foo foo;
5171:    unsigned subtype;    union anything u;    }; -  struct svalue my_svalue = {0, 0, {{17, "17"}}}; -  ], pike_cv_have_union_init=yes, pike_cv_have_union_init=no)]) +  struct svalue my_svalue = {0, 0, {{4711}}}; +  int main() { +  return !(my_svalue.u.foo.a == 4711); +  } +  ], +  pike_cv_have_union_init=yes, +  pike_cv_have_union_init=no, +  pike_cv_have_union_init=no)])   AC_MSG_RESULT($pike_cv_have_union_init)   if test "$pike_cv_have_union_init" = yes; then    AC_DEFINE(HAVE_UNION_INIT)