dnl
dnl Author: Thomas E. Dickey 1995-on
dnl
-dnl $Id: aclocal.m4,v 1.729 2015/01/10 22:05:24 tom Exp $
+dnl $Id: aclocal.m4,v 1.734 2015/01/22 01:13:38 tom Exp $
dnl Macros used in NCURSES auto-configuration script.
dnl
dnl These macros are maintained separately from NCURSES. The copyright on
AC_SUBST(LIB_PREFIX)
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_LIB_RULES version: 77 updated: 2015/01/03 11:49:39
+dnl CF_LIB_RULES version: 78 updated: 2015/01/21 20:10:54
dnl ------------
dnl Append definitions and rules for the given models to the subdirectory
dnl Makefiles, and the recursion rule for the top-level Makefile. If the
SHARED_LIB=
Libs_To_Make=
+ cf_sed_options=
if test -n "${cf_cv_abi_version}" && test "x${cf_cv_abi_version}" != "x5"
+ then
+ cf_sed_options="$cf_sed_options -e \"s/NCURSES\\([[WT]]\\+\\)\?_/NCURSES\\1${cf_cv_abi_version}_/g\""
+ fi
+
+ if test "x$WILDCARD_SYMS" = xno
+ then
+ cf_sed_options="$cf_sed_options -e \"s/_\*;//g\""
+ fi
+
+ if test "x$cf_sed_options" != "x"
then
cat >>$cf_dir/Makefile <<CF_EOF
# Generated by CF_LIB_RULES
resulting.map: $UNALTERED_SYMS
- sed -e "s/NCURSES\\([[WT]]\\+\\)\?_/NCURSES\\1${cf_cv_abi_version}_/g" < $UNALTERED_SYMS >\[$]@
+ sed $cf_sed_options < $UNALTERED_SYMS >\[$]@
clean::
rm -f resulting.map
AC_SUBST(EXTRA_LDFLAGS)
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_SHARED_OPTS version: 85 updated: 2015/01/10 13:38:03
+dnl CF_SHARED_OPTS version: 86 updated: 2015/01/21 20:10:54
dnl --------------
dnl --------------
dnl Attempt to determine the appropriate CC/LD options for creating a shared
fi
;;
hpux[[7-8]]*) #(vi
- # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
+ # HP-UX 8.07 ld lacks "+b" option used for libdir search-list
if test "$GCC" != yes; then
CC_SHARED_OPTS='+Z'
fi
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_WITH_PKG_CONFIG_LIBDIR version: 4 updated: 2015/01/10 17:03:43
+dnl CF_WITH_PKG_CONFIG_LIBDIR version: 5 updated: 2015/01/21 20:10:54
dnl -------------------------
dnl Allow the choice of the pkg-config library directory to be overridden.
AC_DEFUN([CF_WITH_PKG_CONFIG_LIBDIR],[
#
# This case allows for Debian's 2014-flavor of multiarch, along with the
# most common variations before that point. Some other variants spell the
- # directory differently, e.g., "pkg-config", and put it in unusual places.
+ # directory differently, e.g., "pkg-config", and put it in unusual places.
# pkg-config has always been poorly standardized, which is ironic...
case x`(arch) 2>/dev/null` in #(vi
*64) #(vi
[USE_VALGRIND])
])dnl
dnl ---------------------------------------------------------------------------
-dnl CF_WITH_VERSIONED_SYMS version: 3 updated: 2014/12/20 19:16:08
+dnl CF_WITH_VERSIONED_SYMS version: 4 updated: 2015/01/21 20:10:54
dnl ----------------------
dnl Use this when building shared library with ELF, to markup symbols with the
dnl version identifier from the given input file. Generally that identifier is
RESULTING_SYMS=
VERSIONED_SYMS=
+WILDCARD_SYMS=
if test "x$with_versioned_syms" != xno
then
RESULTING_SYMS=$with_versioned_syms
case "x$MK_SHARED_LIB" in
*-Wl,*) #(vi
- VERSIONED_SYMS="-Wl,--version-script,\$(RESULTING_SYMS)"
+ VERSIONED_SYMS="-Wl,--version-script,\${RESULTING_SYMS}"
MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-Wl,%\\[$]{VERSIONED_SYMS} -Wl,%"`
CF_VERBOSE(MK_SHARED_LIB: $MK_SHARED_LIB)
;;
- *-dy*) #(vi
- VERSIONED_SYMS="-Wl,-M,\$(RESULTING_SYMS)"
+ *-dy\ *) #(vi
+ VERSIONED_SYMS="-Wl,-M,\${RESULTING_SYMS}"
MK_SHARED_LIB=`echo "$MK_SHARED_LIB" | sed -e "s%-dy%\\[$]{VERSIONED_SYMS} -dy%"`
CF_VERBOSE(MK_SHARED_LIB: $MK_SHARED_LIB)
;;
AC_MSG_WARN(this system does not support versioned-symbols)
;;
esac
+
+ # Linux ld can selectively override scope, e.g., of symbols beginning with
+ # "_" by first declaring some as global, and then using a wildcard to
+ # declare the others as local. Some other loaders cannot do this. Check
+ # by constructing a (very) simple shared library and inspecting its
+ # symbols.
+ if test "x$VERSIONED_SYMS" != "x"
+ then
+ AC_MSG_CHECKING(if wildcards can be used to selectively omit symbols)
+ WILDCARD_SYMS=no
+
+ # make sources
+ rm -f conftest.*
+
+ cat >conftest.ver <<EOF
+module_1.0 {
+global:
+ globalf1;
+local:
+ localf1;
+};
+module_2.0 {
+global:
+ globalf2;
+local:
+ localf2;
+ _*;
+} module_1.0;
+submodule_1.0 {
+global:
+ subglobalf1;
+ _ismissing;
+local:
+ sublocalf1;
+};
+submodule_2.0 {
+global:
+ subglobalf2;
+local:
+ sublocalf2;
+ _*;
+} submodule_1.0;
+EOF
+ cat >conftest.$ac_ext <<EOF
+#line __oline__ "configure"
+int _ismissing(void) { return 1; }
+int _localf1(void) { return 1; }
+int _localf2(void) { return 2; }
+int globalf1(void) { return 1; }
+int globalf2(void) { return 2; }
+int _sublocalf1(void) { return 1; }
+int _sublocalf2(void) { return 2; }
+int subglobalf1(void) { return 1; }
+int subglobalf2(void) { return 2; }
+EOF
+ cat >conftest.mk <<EOF
+CC=${CC}
+CFLAGS=${CFLAGS}
+CPPFLAGS=${CPPFLAGS}
+LDFLAGS=${LDFLAGS}
+LIBS=${LIBS}
+VERSIONED_SYMS=${VERSIONED_SYMS}
+RESULTING_SYMS=conftest.ver
+MK_SHARED_LIB=${MK_SHARED_LIB}
+conftest.so: conftest.$ac_cv_objext
+ \$(MK_SHARED_LIB) conftest.$ac_cv_objext
+EOF
+
+ # compile source, make library
+ if make -f conftest.mk 2>&AC_FD_CC >/dev/null
+ then
+ # test for missing symbol
+ cf_missing=`nm -P conftest.so 2>&AC_FD_CC |fgrep _ismissing | egrep '[[ ]]T[[ ]]'`
+ test -n "$cf_missing" && WILDCARD_SYMS=yes
+ fi
+ AC_MSG_RESULT($WILDCARD_SYMS)
+ rm -f conftest.*
+ fi
fi
AC_SUBST(RESULTING_SYMS)
AC_SUBST(VERSIONED_SYMS)
+AC_SUBST(WILDCARD_SYMS)
])dnl
dnl ---------------------------------------------------------------------------
dnl CF_XOPEN_SOURCE version: 48 updated: 2014/09/01 12:29:14
projects / ncurses.git / blobdiff