+2008-12-17 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ Add cache variables to link tests.
+ * libltdl/m4/libtool.m4 (_LT_SYS_DYNAMIC_LINKER)
+ (_LT_LINKER_SHLIBS): Add cache variables to tests that
+ require the linker to work. For shlibpath_overrides_runpath,
+ this also changes the semantics to let the result from the C
+ compiler take precedence.
+ * tests/no-executables.at (AC_NO_EXECUTABLES): New file.
+ * Makefile.am: Update.
+ * NEWS: Update.
+ Report of shlibpath_overrides_runpath issue by Mike Frysinger,
+ report of GCC issue by Andreas Schwab.
+
2008-11-28 Paolo Bonzini <bonzini@gnu.org>
Fix inadvertent commit.
tests/template.at \
tests/ctor.at \
tests/early-libtool.at \
+ tests/no-executables.at \
tests/deplibs-ident.at \
tests/configure-iface.at \
tests/stresstest.at \
- libtool command line flag --verbose now also enables explicit
verbose output, in addition to its previous behavior of (re)enabling
only the default informational output. See New Features, --no-silent.
+ - Link tests are guarded by cache variables so they can be avoided for
+ bootstrapping purposes (e.g., when link tests are not possible).
* Miscellaneous changes:
finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
shlibpath_var=LD_LIBRARY_PATH
shlibpath_overrides_runpath=no
+
# Some binutils ld are patched to set DT_RUNPATH
- save_LDFLAGS=$LDFLAGS
- save_libdir=$libdir
- eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
- LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
- AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
- [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
- [shlibpath_overrides_runpath=yes])])
- LDFLAGS=$save_LDFLAGS
- libdir=$save_libdir
+ AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
+ [lt_cv_shlibpath_overrides_runpath=no
+ save_LDFLAGS=$LDFLAGS
+ save_libdir=$libdir
+ eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
+ LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+ [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
+ [lt_cv_shlibpath_overrides_runpath=yes])])
+ LDFLAGS=$save_LDFLAGS
+ libdir=$save_libdir
+ ])
+ shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
# This implies no fast_install, which is unacceptable.
# Some rework will be needed to allow for fast_install
# Test whether the compiler implicitly links with -lc since on some
# systems, -lgcc has to come before -lc. If gcc already passes -lc
# to ld, don't add -lc before -lgcc.
- AC_MSG_CHECKING([whether -lc should be explicitly linked in])
- $RM conftest*
- echo "$lt_simple_compile_test_code" > conftest.$ac_ext
-
- if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
- soname=conftest
- lib=conftest
- libobjs=conftest.$ac_objext
- deplibs=
- wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
- pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
- compiler_flags=-v
- linker_flags=-v
- verstring=
- output_objdir=.
- libname=conftest
- lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
- _LT_TAGVAR(allow_undefined_flag, $1)=
- if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
- then
- _LT_TAGVAR(archive_cmds_need_lc, $1)=no
- else
- _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
- fi
- _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
- else
- cat conftest.err 1>&5
- fi
- $RM conftest*
- AC_MSG_RESULT([$_LT_TAGVAR(archive_cmds_need_lc, $1)])
+ AC_CACHE_CHECK([whether -lc should be explicitly linked in],
+ [lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1),
+ [$RM conftest*
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
+ soname=conftest
+ lib=conftest
+ libobjs=conftest.$ac_objext
+ deplibs=
+ wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
+ pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
+ compiler_flags=-v
+ linker_flags=-v
+ verstring=
+ output_objdir=.
+ libname=conftest
+ lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
+ _LT_TAGVAR(allow_undefined_flag, $1)=
+ if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
+ then
+ lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ else
+ lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+ fi
+ _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
+ else
+ cat conftest.err 1>&5
+ fi
+ $RM conftest*
+ ])
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)
;;
esac
fi
--- /dev/null
+# no-executables.at -- Libtool usage in GCC -*- Autotest -*-
+
+# Copyright (C) 2008 Free Software Foundation, Inc.
+# Written by Ralf Wildenhues, 2008
+#
+# This file is part of GNU Libtool.
+#
+# GNU Libtool is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# GNU Libtool is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Libtool; see the file COPYING. If not, a copy
+# can be downloaded from http://www.gnu.org/licenses/gpl.html,
+# or obtained by writing to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+####
+
+AT_BANNER([Libtool usage in GCC])
+AT_SETUP([AC_NO_EXECUTABLES])
+
+mkdir m4
+
+AT_DATA([configure.ac],
+[[AC_INIT([no-exec], [1])
+AC_CONFIG_MACRO_DIR([m4])
+
+# We punt a bit here, to get the results of AC_PROG_CC
+# (and allow it to do link tests) but still error out on
+# link tests within Libtool macros.
+LDFLAGS=-lnosuchlibrary
+AC_NO_EXECUTABLES
+AC_PROG_CC
+AC_PROG_CXX
+AC_PROG_F77
+AC_PROG_FC
+AM_PROG_GCJ
+
+# Consequently, we have to set cache variables for each link
+# test we may need. For the purposes of this test, it shouldn't
+# matter much whether these values are actually wrong, the point
+# is that the linker should never be invoked.
+
+lt_cv_shlibpath_overrides_runpath=no
+lt_cv_archive_cmds_need_lc=no
+lt_cv_cc_needs_belf=no
+lt_cv_ld_exported_symbols_list=no
+lt_cv_prog_compiler_static_works=no
+
+# Deal with AC_LIBTOOL_DLOPEN in one of two possible ways:
+# - do not execute it at all in the ac_no_link case
+# - preset the individual Autoconf test variables
+
+if ${test_ac_libtool_dlopen-false}; then
+ ac_cv_func_shl_load=no
+ ac_cv_lib_dld_shl_load=no
+ ac_cv_func_dlopen=no
+ ac_cv_lib_dl_dlopen=no
+ ac_cv_lib_svld_dlopen=no
+ ac_cv_lib_dld_dld_link=no
+ AC_LIBTOOL_DLOPEN
+fi
+AC_PROG_LIBTOOL
+
+AC_OUTPUT
+]])
+
+LT_AT_BOOTSTRAP([--install], [-I m4], [ignore], [ignore], [], [ignore], [ignore])
+LT_AT_CONFIGURE([])
+LT_AT_CONFIGURE([test_ac_libtool_dlopen=:])
+
+AT_CLEANUP
projects / thirdparty / libtool.git / commitdiff
