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-rw-r--r--opcodes/ChangeLog7
-rwxr-xr-xopcodes/configure247
-rw-r--r--opcodes/configure.in22
3 files changed, 275 insertions, 1 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index ca72b58a64f..e550086f0d9 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,3 +1,10 @@
+2009-03-04 Alan Modra <amodra@bigpond.net.au>
+
+ PR 6768
+ * configure.in: Test for ld --as-needed support. Link shared
+ libopcodes against libm.
+ * configure: Regenerate.
+
2009-03-03 Peter Bergner <bergner@vnet.ibm.com>
* ppc-opc.c (powerpc_opcodes): Reorder the opcode table so that
diff --git a/opcodes/configure b/opcodes/configure
index 998baf46b18..e4377619437 100755
--- a/opcodes/configure
+++ b/opcodes/configure
@@ -458,7 +458,7 @@ ac_includes_default="\
# include <unistd.h>
#endif"
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE CPP EGREP AR ac_ct_AR RANLIB ac_ct_RANLIB LIBTOOL SED FGREP GREP LD DUMPBIN ac_ct_DUMPBIN NM LN_S OBJDUMP ac_ct_OBJDUMP lt_ECHO DSYMUTIL ac_ct_DSYMUTIL NMEDIT ac_ct_NMEDIT LIPO ac_ct_LIPO OTOOL ac_ct_OTOOL OTOOL64 ac_ct_OTOOL64 WARN_CFLAGS NO_WERROR MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT INSTALL_LIBBFD_TRUE INSTALL_LIBBFD_FALSE host_noncanonical target_noncanonical bfdlibdir bfdincludedir USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS DATADIRNAME INSTOBJEXT GENCAT CATOBJEXT MKINSTALLDIRS MSGFMT MSGMERGE CC_FOR_BUILD EXEEXT_FOR_BUILD HDEFINES CGEN_MAINT_TRUE CGEN_MAINT_FALSE cgendir SHARED_LDFLAGS SHARED_LIBADD SHARED_DEPENDENCIES archdefs BFD_MACHINES LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE CPP EGREP AR ac_ct_AR RANLIB ac_ct_RANLIB LIBTOOL SED FGREP GREP LD DUMPBIN ac_ct_DUMPBIN NM LN_S OBJDUMP ac_ct_OBJDUMP lt_ECHO DSYMUTIL ac_ct_DSYMUTIL NMEDIT ac_ct_NMEDIT LIPO ac_ct_LIPO OTOOL ac_ct_OTOOL OTOOL64 ac_ct_OTOOL64 WARN_CFLAGS NO_WERROR MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT INSTALL_LIBBFD_TRUE INSTALL_LIBBFD_FALSE host_noncanonical target_noncanonical bfdlibdir bfdincludedir USE_NLS LIBINTL LIBINTL_DEP INCINTL XGETTEXT GMSGFMT POSUB CATALOGS DATADIRNAME INSTOBJEXT GENCAT CATOBJEXT MKINSTALLDIRS MSGFMT MSGMERGE CC_FOR_BUILD EXEEXT_FOR_BUILD HDEFINES CGEN_MAINT_TRUE CGEN_MAINT_FALSE cgendir LIBM SHARED_LDFLAGS SHARED_LIBADD SHARED_DEPENDENCIES archdefs BFD_MACHINES LIBOBJS LTLIBOBJS'
ac_subst_files=''
ac_pwd=`pwd`
@@ -12420,6 +12420,238 @@ fi
using_cgen=no
+# Check if linker supports --as-needed and --no-as-needed options
+echo "$as_me:$LINENO: checking linker --as-needed support" >&5
+echo $ECHO_N "checking linker --as-needed support... $ECHO_C" >&6
+if test "${bfd_cv_ld_as_needed+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ bfd_cv_ld_as_needed=no
+ if $LD --help 2>/dev/null | grep as-needed > /dev/null; then
+ bfd_cv_ld_as_needed=yes
+ fi
+
+fi
+echo "$as_me:$LINENO: result: $bfd_cv_ld_as_needed" >&5
+echo "${ECHO_T}$bfd_cv_ld_as_needed" >&6
+
+LIBM=
+case $host in
+*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)
+ # These system don't have libm, or don't need it
+ ;;
+*-ncr-sysv4.3*)
+ echo "$as_me:$LINENO: checking for _mwvalidcheckl in -lmw" >&5
+echo $ECHO_N "checking for _mwvalidcheckl in -lmw... $ECHO_C" >&6
+if test "${ac_cv_lib_mw__mwvalidcheckl+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmw $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char _mwvalidcheckl ();
+int
+main ()
+{
+_mwvalidcheckl ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_mw__mwvalidcheckl=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_mw__mwvalidcheckl=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_mw__mwvalidcheckl" >&5
+echo "${ECHO_T}$ac_cv_lib_mw__mwvalidcheckl" >&6
+if test $ac_cv_lib_mw__mwvalidcheckl = yes; then
+ LIBM="-lmw"
+fi
+
+ echo "$as_me:$LINENO: checking for cos in -lm" >&5
+echo $ECHO_N "checking for cos in -lm... $ECHO_C" >&6
+if test "${ac_cv_lib_m_cos+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char cos ();
+int
+main ()
+{
+cos ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_m_cos=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_m_cos=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_m_cos" >&5
+echo "${ECHO_T}$ac_cv_lib_m_cos" >&6
+if test $ac_cv_lib_m_cos = yes; then
+ LIBM="$LIBM -lm"
+fi
+
+ ;;
+*)
+ echo "$as_me:$LINENO: checking for cos in -lm" >&5
+echo $ECHO_N "checking for cos in -lm... $ECHO_C" >&6
+if test "${ac_cv_lib_m_cos+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lm $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char cos ();
+int
+main ()
+{
+cos ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_m_cos=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_lib_m_cos=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_lib_m_cos" >&5
+echo "${ECHO_T}$ac_cv_lib_m_cos" >&6
+if test $ac_cv_lib_m_cos = yes; then
+ LIBM="-lm"
+fi
+
+ ;;
+esac
+
+
+
# Horrible hacks to build DLLs on Windows and a shared library elsewhere.
SHARED_LDFLAGS=
SHARED_LIBADD=
@@ -12459,6 +12691,18 @@ if test "$enable_shared" = "yes"; then
SHARED_DEPENDENCIES="../bfd/libbfd.la"
;;
esac
+
+ if test -n "$SHARED_LIBADD"; then
+ if test -n "$LIBM"; then
+ if test x"$bfd_cv_ld_as_needed" = xyes; then
+ # Link against libm only when needed. Put -lc, -lm inside -Wl
+ # to stop libtool reordering these options.
+ SHARED_LIBADD="$SHARED_LIBADD -Wl,-lc,--as-needed,`echo $LIBM | sed 's/ /,/g'`,--no-as-needed"
+ else
+ SHARED_LIBADD="$SHARED_LIBADD $LIBM"
+ fi
+ fi
+ fi
fi
@@ -13669,6 +13913,7 @@ s,@HDEFINES@,$HDEFINES,;t t
s,@CGEN_MAINT_TRUE@,$CGEN_MAINT_TRUE,;t t
s,@CGEN_MAINT_FALSE@,$CGEN_MAINT_FALSE,;t t
s,@cgendir@,$cgendir,;t t
+s,@LIBM@,$LIBM,;t t
s,@SHARED_LDFLAGS@,$SHARED_LDFLAGS,;t t
s,@SHARED_LIBADD@,$SHARED_LIBADD,;t t
s,@SHARED_DEPENDENCIES@,$SHARED_DEPENDENCIES,;t t
diff --git a/opcodes/configure.in b/opcodes/configure.in
index 8bebe7e3235..2ecff8cc5fc 100644
--- a/opcodes/configure.in
+++ b/opcodes/configure.in
@@ -91,6 +91,16 @@ AC_SUBST(cgendir)
using_cgen=no
+# Check if linker supports --as-needed and --no-as-needed options
+AC_CACHE_CHECK(linker --as-needed support, bfd_cv_ld_as_needed,
+ [bfd_cv_ld_as_needed=no
+ if $LD --help 2>/dev/null | grep as-needed > /dev/null; then
+ bfd_cv_ld_as_needed=yes
+ fi
+ ])
+
+LT_LIB_M
+
# Horrible hacks to build DLLs on Windows and a shared library elsewhere.
SHARED_LDFLAGS=
SHARED_LIBADD=
@@ -132,6 +142,18 @@ changequote([,])dnl
SHARED_DEPENDENCIES="../bfd/libbfd.la"
;;
esac
+
+ if test -n "$SHARED_LIBADD"; then
+ if test -n "$LIBM"; then
+ if test x"$bfd_cv_ld_as_needed" = xyes; then
+ # Link against libm only when needed. Put -lc, -lm inside -Wl
+ # to stop libtool reordering these options.
+ SHARED_LIBADD="$SHARED_LIBADD -Wl,-lc,--as-needed,`echo $LIBM | sed 's/ /,/g'`,--no-as-needed"
+ else
+ SHARED_LIBADD="$SHARED_LIBADD $LIBM"
+ fi
+ fi
+ fi
fi
AC_SUBST(SHARED_LDFLAGS)
AC_SUBST(SHARED_LIBADD)