sysdeps/sparc/configure.ac

   1 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
   2 # Local configure fragment for sysdeps/sparc.
   3
   4 # Check for a GCC emitting GOTDATA relocations.
   5 AC_CACHE_CHECK(for sparc gcc GOTDATA reloc support, libc_cv_sparc_gcc_gotdata, [dnl
   6 changequote(,)dnl
   7 cat > conftest.c <<\EOF
   8 int data;
   9 int foo(void)
  10 {
  11         return data;
  12 }
  13 EOF
  14 changequote([,])dnl
  15 dnl
  16 libc_cv_sparc_gcc_gotdata=no
  17 if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS -O2 -fPIC conftest.c 1>&AS_MESSAGE_LOG_FD); then
  18   if grep -q 'gdop_hix22' conftest.s \
  19      && grep -q 'gdop_lox10' conftest.s; then
  20     libc_cv_sparc_gcc_gotdata=yes
  21   fi
  22 fi
  23 rm -f conftest*])
  24 if test $libc_cv_sparc_gcc_gotdata = yes; then
  25   AC_DEFINE(HAVE_GCC_GOTDATA)
  26 fi
  27
  28 if test $libc_cv_sparc_gcc_gotdata = yes; then
  29   AC_DEFINE(PI_STATIC_AND_HIDDEN)
  30 fi