Add check for which library is needed for dlopen.
gold/ PR gold/16203 * configure.ac: Add check for which library is needed for dlopen. * configure: Regenerate.
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@ -1,3 +1,9 @@
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2013-11-22 Cary Coutant <ccoutant@google.com>
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* configure.ac: Add check for which library is needed for
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dlopen.
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* configure: Regenerate.
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2013-11-22 Cary Coutant <ccoutant@google.com>
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2013-11-22 Cary Coutant <ccoutant@google.com>
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* testsuite/Makefile.am (exception_x86_64_bnd_test): Use in-tree
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* testsuite/Makefile.am (exception_x86_64_bnd_test): Use in-tree
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@ -7193,13 +7193,71 @@ if test "x$ac_cv_header_dlfcn_h" = x""yes; then :
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cat >>confdefs.h <<_ACEOF
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cat >>confdefs.h <<_ACEOF
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#define HAVE_DLFCN_H 1
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#define HAVE_DLFCN_H 1
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_ACEOF
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_ACEOF
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DLOPEN_LIBS="-ldl"
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else
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DLOPEN_LIBS=""
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fi
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fi
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done
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done
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5
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$as_echo_n "checking for library containing dlopen... " >&6; }
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if test "${ac_cv_search_dlopen+set}" = set; then :
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$as_echo_n "(cached) " >&6
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else
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ac_func_search_save_LIBS=$LIBS
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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/* Override any GCC internal prototype to avoid an error.
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Use char because int might match the return type of a GCC
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builtin and then its argument prototype would still apply. */
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#ifdef __cplusplus
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extern "C"
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#endif
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char dlopen ();
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int
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main ()
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{
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return dlopen ();
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;
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return 0;
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}
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_ACEOF
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for ac_lib in '' dl dld; do
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if test -z "$ac_lib"; then
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ac_res="none required"
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else
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ac_res=-l$ac_lib
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LIBS="-l$ac_lib $ac_func_search_save_LIBS"
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fi
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if ac_fn_cxx_try_link "$LINENO"; then :
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ac_cv_search_dlopen=$ac_res
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext
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if test "${ac_cv_search_dlopen+set}" = set; then :
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break
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fi
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done
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if test "${ac_cv_search_dlopen+set}" = set; then :
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else
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ac_cv_search_dlopen=no
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fi
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rm conftest.$ac_ext
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LIBS=$ac_func_search_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dlopen" >&5
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$as_echo "$ac_cv_search_dlopen" >&6; }
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ac_res=$ac_cv_search_dlopen
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if test "$ac_res" != no; then :
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test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
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fi
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case "$ac_cv_search_dlopen" in
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no*) DLOPEN_LIBS="";;
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*) DLOPEN_LIBS="$ac_cv_search_dlopen";;
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esac
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for ac_func in mallinfo posix_fallocate fallocate readv sysconf times
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for ac_func in mallinfo posix_fallocate fallocate readv sysconf times
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@ -528,9 +528,14 @@ AC_CHECK_HEADERS(ext/hash_map ext/hash_set)
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AC_CHECK_HEADERS(byteswap.h)
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AC_CHECK_HEADERS(byteswap.h)
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dnl When plugins enabled dynamic loader interface is required. Check headers
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dnl When plugins enabled dynamic loader interface is required. Check headers
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dnl which may provide this interface. In case of dlfcn.h add libdl to link.
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dnl which may provide this interface. Add the necessary library to link.
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AC_CHECK_HEADERS(windows.h)
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AC_CHECK_HEADERS(windows.h)
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AC_CHECK_HEADERS(dlfcn.h, [DLOPEN_LIBS="-ldl"], [DLOPEN_LIBS=""])
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AC_CHECK_HEADERS(dlfcn.h)
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AC_SEARCH_LIBS(dlopen, [dl dld])
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case "$ac_cv_search_dlopen" in
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no*) DLOPEN_LIBS="";;
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*) DLOPEN_LIBS="$ac_cv_search_dlopen";;
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esac
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AC_SUBST(DLOPEN_LIBS)
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AC_SUBST(DLOPEN_LIBS)
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AC_CHECK_FUNCS(mallinfo posix_fallocate fallocate readv sysconf times)
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AC_CHECK_FUNCS(mallinfo posix_fallocate fallocate readv sysconf times)
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