diff options
Diffstat (limited to 'sysdeps/i386/configure.in')
| -rw-r--r-- | sysdeps/i386/configure.in | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sysdeps/i386/configure.in b/sysdeps/i386/configure.in index 56a7c1f..96ab7b0 100644 --- a/sysdeps/i386/configure.in +++ b/sysdeps/i386/configure.in @@ -1,6 +1,15 @@ 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 @@ -18,7 +27,8 @@ LIBC_COMPILER_BUILTIN_INLINED( [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.])]) +*** Please use host i786, i686, i586, or i486. +*** For example: /source/glibc/configure CFLAGS='-O2 -march=i686' ...])]) AC_CHECK_HEADER([cpuid.h], , [AC_MSG_ERROR([gcc must provide the <cpuid.h> header])], |