diff options
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/configure.in b/configure.in index 0a8b2d4757..ead9e630da 100644 --- a/configure.in +++ b/configure.in @@ -422,7 +422,7 @@ AC_CHECK_TOOL(RANLIB, ranlib, :) AC_PATH_PROG(BASH, bash, no) if test "$BASH" != no && - $BASH -c 'test "$BASH_VERSINFO" + $BASH -c 'test "$BASH_VERSINFO" \ && test "$BASH_VERSINFO" -ge 2 >&/dev/null'; then libc_cv_have_bash2=yes else @@ -596,9 +596,13 @@ _sym: .symver _sym,sym@VERS EOF cat > conftest.map <<EOF -VERS { +VERS_1 { global: sym; }; + +VERS_2 { + global: sym; +} VERS_1; EOF if ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.s 1>&AC_FD_CC 2>&AC_FD_CC; then if AC_TRY_COMMAND([${CC-cc} $CFLAGS -shared -o conftest.so conftest.o @@ -627,6 +631,13 @@ else fi AC_SUBST(VERSIONING) +if test $VERSIONING = no; then + echo "\ +*** WARNING: You should not compile GNU libc without versioning. Not using +*** versioning will introduce incompatibilities so that old binaries +*** will not run anymore. +*** For versioning you need recent binutils (binutils-2.8.1.0.17 or newer)." +fi if test $elf = yes; then AC_CACHE_CHECK(for .previous assembler directive, libc_cv_asm_previous_directive, [dnl |