diff options
Diffstat (limited to 'sysdeps/i386/configure.ac')
| -rw-r--r-- | sysdeps/i386/configure.ac | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/sysdeps/i386/configure.ac b/sysdeps/i386/configure.ac deleted file mode 100644 index 19ef33f34a..0000000000 --- a/sysdeps/i386/configure.ac +++ /dev/null @@ -1,52 +0,0 @@ -GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. -# Local configure fragment for sysdeps/i386. - -# We no longer support i386 since it lacks the atomic instructions -# required to implement NPTL threading. -if test "$config_machine" = i386; then - AC_MSG_ERROR([ -*** ERROR: Support for i386 is deprecated. -*** Please use host i786, i686, i585 or i486. -*** For example: /src/glibc/configure --host=i686-pc-linux-gnu ..."]) -fi - -# The GNU C Library can't be built for i386. There are several reasons for -# this restriction. The primary reason is that i386 lacks the atomic -# operations required to support the current NPTL implementation. While it is -# possible that such atomic operations could be emulated in the kernel to date -# no such work has been done to enable this. Even with NPTL disabled you still -# have no atomic.h implementation. Given the declining use of i386 we disable -# support for building with `-march=i386' or `-mcpu=i386.' We don't explicitly -# check for i386, instead we make sure the compiler has support for inlining -# the builtin __sync_val_compare_and_swap. If it does then we should have no -# problem building for i386. -LIBC_COMPILER_BUILTIN_INLINED( - [__sync_val_compare_and_swap], - [int a, b, c; __sync_val_compare_and_swap (&a, b, c);], - [-O0], - [libc_cv_unsupported_i386=no], - [AC_MSG_ERROR([ -*** Building with -march=i386/-mcpu=i386 is not supported. -*** Please use host i786, i686, i586, or i486. -*** For example: /source/glibc/configure CFLAGS='-O2 -march=i686' ...])]) - -dnl Check whether asm supports Intel MPX -AC_CACHE_CHECK(for Intel MPX support, libc_cv_asm_mpx, [dnl -cat > conftest.s <<\EOF - bndmov %bnd0,(%esp) -EOF -if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then - libc_cv_asm_mpx=yes -else - libc_cv_asm_mpx=no -fi -rm -f conftest*]) -if test $libc_cv_asm_mpx = yes; then - AC_DEFINE(HAVE_MPX_SUPPORT) -fi - -AC_DEFINE(USE_REGPARMS) - -dnl It is always possible to access static and hidden symbols in an -dnl position independent way. -AC_DEFINE(PI_STATIC_AND_HIDDEN) |