diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 3fdf992f79..cd37433cae 100644 --- a/configure.ac +++ b/configure.ac @@ -1340,6 +1340,29 @@ $ac_try" use_default_link=$libc_cv_use_default_link fi +AC_CACHE_CHECK(for GLOB_DAT reloc, + libc_cv_has_glob_dat, [dnl +cat > conftest.c <<EOF +extern int mumble; +int foo (void) { return mumble; } +EOF +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS + -fPIC -shared -o conftest.so conftest.c + -nostdlib -nostartfiles + 1>&AS_MESSAGE_LOG_FD]) +then +dnl look for GLOB_DAT relocation. + if $READELF -rW conftest.so | grep '_GLOB_DAT' > /dev/null; then + libc_cv_has_glob_dat=yes + else + libc_cv_has_glob_dat=no + fi +else + libc_cv_has_glob_dat=no +fi +rm -f conftest*]) +AC_SUBST(libc_cv_has_glob_dat) + AC_CACHE_CHECK(linker output format, libc_cv_output_format, [dnl if libc_cv_output_format=` ${CC-cc} -nostartfiles -nostdlib -Wl,--print-output-format 2>&AS_MESSAGE_LOG_FD` |