#
# aclocal -I .. -I ../config && autoconf && autoheader && automake
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
AC_INIT(libssp, 1.0)
AC_CONFIG_SRCDIR(ssp.c)
AC_CANONICAL_SYSTEM
ACX_NONCANONICAL_TARGET
-AM_INIT_AUTOMAKE
+AM_INIT_AUTOMAKE([no-dist])
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
AC_ARG_ENABLE(version-specific-runtime-libs,
m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
m4_define([_AC_ARG_VAR_PRECIOUS],[])
AC_PROG_CC
-m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
+m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
AC_SUBST(CFLAGS)
fi
AC_MSG_CHECKING([whether symbol versioning is supported])
-cat > conftest.map <<EOF
-FOO_1.0 {
- global: *foo*; bar; local: *;
-};
-EOF
-save_LDFLAGS="$LDFLAGS"
-LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map"
if test x$gcc_no_link = xyes; then
# If we cannot link, we cannot build shared libraries, so do not use
# symbol versioning.
ssp_use_symver=no
else
- AC_TRY_LINK([int foo;],[],[ssp_use_symver=yes],[ssp_use_symver=no])
+ save_LDFLAGS="$LDFLAGS"
+ LDFLAGS="$LDFLAGS -fPIC -shared -Wl,--version-script,./conftest.map"
+ cat > conftest.map <<EOF
+FOO_1.0 {
+ global: *foo*; bar; local: *;
+};
+EOF
+ AC_TRY_LINK([int foo;],[],[ssp_use_symver=gnu],[ssp_use_symver=no])
+ if test x$ssp_use_symver = xno; then
+ case "$target_os" in
+ solaris2*)
+ LDFLAGS="$save_LDFLAGS"
+ LDFLAGS="$LDFLAGS -fPIC -shared -Wl,-M,./conftest.map"
+ # Sun ld cannot handle wildcards and treats all entries as undefined.
+ cat > conftest.map <<EOF
+FOO_1.0 {
+ global: foo; local: *;
+};
+EOF
+ AC_TRY_LINK([int foo;],[],[ssp_use_symver=sun],[ssp_use_symver=no])
+ ;;
+ esac
+ fi
+ LDFLAGS="$save_LDFLAGS"
fi
-LDFLAGS="$save_LDFLAGS"
AC_MSG_RESULT($ssp_use_symver)
-AM_CONDITIONAL(LIBSSP_USE_SYMVER, [test "x$ssp_use_symver" = xyes])
+AM_CONDITIONAL(LIBSSP_USE_SYMVER, [test "x$ssp_use_symver" != xno])
+AM_CONDITIONAL(LIBSSP_USE_SYMVER_GNU, [test "x$ssp_use_symver" = xgnu])
+AM_CONDITIONAL(LIBSSP_USE_SYMVER_SUN, [test "x$ssp_use_symver" = xsun])
AC_CHECK_HEADERS(alloca.h malloc.h paths.h syslog.h string.h unistd.h fcntl.h stdio.h limits.h)
AC_DEFINE(HAVE_STRNCPY)
AC_DEFINE(HAVE_STRNCAT)
else
- AC_CHECK_FUNCS(mempcpy strncpy strncat)
+ AC_CHECK_FUNCS(memmove mempcpy strncpy strncat)
fi
AC_MSG_CHECKING([whether vsnprintf is usable])