-
-# If we're using GNU nm, then use its standard symbol codes.
-if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
- ac_symcode='[ABCDGISTW]'
-fi
-changequote([,])dnl
-
-# Try without a prefix undercore, then with it.
-for ac_symprfx in "" "_"; do
-
- ac_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($ac_symcode\)[ ][ ]*\($ac_symprfx\)$ac_sympat$/$ac_symxfrm/p'"
-
- # Check to see that the pipe works correctly.
- ac_pipe_works=no
- rm -f conftest.$ac_ext
- cat > conftest.$ac_ext <<EOF
-#ifdef __cplusplus
-extern "C" {
-#endif
-char nm_test_var;
-void nm_test_func(){}
-#ifdef __cplusplus
-}
-#endif
-int main(){nm_test_var='a';nm_test_func;return 0;}
-EOF
-
- if AC_TRY_EVAL(ac_compile); then
- # Now try to grab the symbols.
- ac_nlist=conftest.nm
-
- if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
-
- # Try sorting and uniquifying the output.
- if sort "$ac_nlist" | uniq > "$ac_nlist"T; then
- mv -f "$ac_nlist"T "$ac_nlist"
- else
- rm -f "$ac_nlist"T
- fi
-
- # Make sure that we snagged all the symbols we need.
- if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
- if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
- cat <<EOF > conftest.c
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-EOF
- # Now generate the symbol file.
- eval "$ac_global_symbol_to_cdecl"' < "$ac_nlist" >> conftest.c'
-
- cat <<EOF >> conftest.c
-#if defined (__STDC__) && __STDC__
-# define lt_ptr_t void *
-#else
-# define lt_ptr_t char *
-# define const
-#endif
-
-/* The mapping between symbol names and symbols. */
-const struct {
- const char *name;
- lt_ptr_t address;
-}
-changequote(,)dnl
-lt_preloaded_symbols[] =
-changequote([,])dnl
-{
-EOF
- sed 's/^. \(.*\) \(.*\)$/ {"\2", (lt_ptr_t) \&\2},/' < "$ac_nlist" >> conftest.c
- cat <<\EOF >> conftest.c
- {0, (lt_ptr_t) 0}
-};
-
-#ifdef __cplusplus
-}
-#endif
-EOF
- # Now try linking the two files.
- mv conftest.$ac_objext conftestm.$ac_objext
- ac_save_LIBS="$LIBS"
- ac_save_CFLAGS="$CFLAGS"
- LIBS="conftestm.$ac_objext"
- CFLAGS="$CFLAGS$no_builtin_flag"
- if AC_TRY_EVAL(ac_link) && test -s conftest; then
- ac_pipe_works=yes
- else
- echo "configure: failed program was:" >&AC_FD_CC
- cat conftest.c >&AC_FD_CC
- fi
- LIBS="$ac_save_LIBS"
- CFLAGS="$ac_save_CFLAGS"
- else
- echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
- fi
- else
- echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
- fi
- else
- echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
- fi
- else
- echo "$progname: failed program was:" >&AC_FD_CC
- cat conftest.c >&AC_FD_CC
- fi
- rm -rf conftest*
-
- # Do not use the global_symbol_pipe unless it works.
- if test "$ac_pipe_works" = yes; then
- if test x"$ac_symprfx" = x"_"; then
- ac_cv_sys_symbol_underscore=yes
- else
- ac_cv_sys_symbol_underscore=no
- fi
- break
- else
- ac_cv_sys_global_symbol_pipe=
- fi
-done
-])
-
-ac_result=yes
-if test -z "$ac_cv_sys_global_symbol_pipe"; then
- ac_result=no
-fi
-AC_MSG_RESULT($ac_result)
-])
-
-# AC_SYS_LIBTOOL_CYGWIN - find tools needed on cygwin
-AC_DEFUN(AC_SYS_LIBTOOL_CYGWIN,
-[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
-AC_CHECK_TOOL(AS, as, false)
-])
-
-# AC_SYS_SYMBOL_UNDERSCORE - does the compiler prefix global symbols
-# with an underscore?
-AC_DEFUN(AC_SYS_SYMBOL_UNDERSCORE,
-[AC_REQUIRE([AC_PROG_NM])dnl
-AC_REQUIRE([AC_SYS_NM_PARSE])dnl
-AC_MSG_CHECKING([for _ prefix in compiled symbols])
-AC_CACHE_VAL(ac_cv_sys_symbol_underscore,
-[ac_cv_sys_symbol_underscore=no
-cat > conftest.$ac_ext <<EOF
-void nm_test_func(){}
-int main(){nm_test_func;return 0;}
-EOF
-if AC_TRY_EVAL(ac_compile); then
- # Now try to grab the symbols.
- ac_nlist=conftest.nm
- if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
- # See whether the symbols have a leading underscore.
- if egrep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
- ac_cv_sys_symbol_underscore=yes
- else
- if egrep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
- :
- else
- echo "configure: cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
- fi
- fi
- else
- echo "configure: cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
- fi
-else
- echo "configure: failed program was:" >&AC_FD_CC
- cat conftest.c >&AC_FD_CC
-fi
-rm -rf conftest*
-])
-AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
-USE_SYMBOL_UNDERSCORE=${ac_cv_sys_symbol_underscore=no}
-AC_SUBST(USE_SYMBOL_UNDERSCORE)dnl
-])
-
-# AC_CHECK_LIBM - check for math library
-AC_DEFUN(AC_CHECK_LIBM, [
-AC_CHECK_LIB(mw, _mwvalidcheckl)
-AC_CHECK_LIB(m, cos)