aboutsummaryrefslogtreecommitdiff
path: root/opcodes/aclocal.m4
diff options
context:
space:
mode:
Diffstat (limited to 'opcodes/aclocal.m4')
-rw-r--r--opcodes/aclocal.m4351
1 files changed, 78 insertions, 273 deletions
diff --git a/opcodes/aclocal.m4 b/opcodes/aclocal.m4
index 308711d..7ba1f4e 100644
--- a/opcodes/aclocal.m4
+++ b/opcodes/aclocal.m4
@@ -105,7 +105,7 @@ fi
AC_SUBST($1)])
-# serial 35 AC_PROG_LIBTOOL
+# serial 40 AC_PROG_LIBTOOL
AC_DEFUN(AC_PROG_LIBTOOL,
[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl
@@ -114,10 +114,11 @@ AC_CACHE_SAVE
# Actually configure libtool. ac_aux_dir is where install-sh is found.
CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
-LD="$LD" NM="$NM" RANLIB="$RANLIB" LN_S="$LN_S" \
-DLLTOOL="$DLLTOOL" AS="$AS" \
+LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \
+LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" \
+DLLTOOL="$DLLTOOL" AS="$AS" OBJDUMP="$OBJDUMP" \
${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \
-$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
+$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $lt_target \
|| AC_MSG_ERROR([libtool configure failed])
# Reload cache, that may have been modified by ltconfig
@@ -146,24 +147,33 @@ AC_REQUIRE([AC_PROG_RANLIB])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_LD])dnl
AC_REQUIRE([AC_PROG_NM])dnl
-AC_REQUIRE([AC_SYS_NM_PARSE])dnl
-AC_REQUIRE([AC_SYS_SYMBOL_UNDERSCORE])dnl
AC_REQUIRE([AC_PROG_LN_S])dnl
dnl
+case "$target" in
+NONE) lt_target="$host" ;;
+*) lt_target="$target" ;;
+esac
+
# Check for any special flags to pass to ltconfig.
libtool_flags="--cache-file=$cache_file"
test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"
-test "$lt_dlopen" = yes && libtool_flags="$libtool_flags --enable-dlopen"
-test "$silent" = yes && libtool_flags="$libtool_flags --silent"
test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
+ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],
+[libtool_flags="$libtool_flags --enable-dlopen"])
+ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
+[libtool_flags="$libtool_flags --enable-win32-dll"])
+AC_ARG_ENABLE(libtool-lock,
+ [ --disable-libtool-lock avoid locking (might break parallel builds)])
+test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"
+test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"
# Some flags need to be propagated to the compiler or linker for good
# libtool support.
-case "$host" in
+case "$lt_target" in
*-*-irix6*)
# Find out which ABI we are using.
echo '[#]line __oline__ "configure"' > conftest.$ac_ext
@@ -195,33 +205,28 @@ case "$host" in
fi
;;
-*-*-cygwin*)
- AC_SYS_LIBTOOL_CYGWIN
+ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],
+[*-*-cygwin* | *-*-mingw*)
+ AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+ AC_CHECK_TOOL(AS, as, false)
+ AC_CHECK_TOOL(OBJDUMP, objdump, false)
;;
-
+])
esac
-
-# enable the --disable-libtool-lock switch
-
-AC_ARG_ENABLE(libtool-lock,
-[ --disable-libtool-lock force libtool not to do file locking],
-need_locks=$enableval,
-need_locks=yes)
-
-if test x"$need_locks" = xno; then
- libtool_flags="$libtool_flags --disable-lock"
-fi
])
-# AC_LIBTOOL_DLOPEN - check for dlopen support
-AC_DEFUN(AC_LIBTOOL_DLOPEN, [lt_dlopen=yes])
+# AC_LIBTOOL_DLOPEN - enable checks for dlopen support
+AC_DEFUN(AC_LIBTOOL_DLOPEN, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])
+
+# AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's
+AC_DEFUN(AC_LIBTOOL_WIN32_DLL, [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])
# AC_ENABLE_SHARED - implement the --enable-shared flag
# Usage: AC_ENABLE_SHARED[(DEFAULT)]
# Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
# `yes'.
-AC_DEFUN(AC_ENABLE_SHARED,
-[define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_DEFUN(AC_ENABLE_SHARED, [dnl
+define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(shared,
changequote(<<, >>)dnl
<< --enable-shared[=PKGS] build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],
@@ -246,15 +251,15 @@ enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl
])
# AC_DISABLE_SHARED - set the default shared flag to --disable-shared
-AC_DEFUN(AC_DISABLE_SHARED,
-[AC_ENABLE_SHARED(no)])
+AC_DEFUN(AC_DISABLE_SHARED, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+AC_ENABLE_SHARED(no)])
# AC_ENABLE_STATIC - implement the --enable-static flag
# Usage: AC_ENABLE_STATIC[(DEFAULT)]
# Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
# `yes'.
-AC_DEFUN(AC_ENABLE_STATIC,
-[define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_DEFUN(AC_ENABLE_STATIC, [dnl
+define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(static,
changequote(<<, >>)dnl
<< --enable-static[=PKGS] build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],
@@ -279,16 +284,16 @@ enable_static=AC_ENABLE_STATIC_DEFAULT)dnl
])
# AC_DISABLE_STATIC - set the default static flag to --disable-static
-AC_DEFUN(AC_DISABLE_STATIC,
-[AC_ENABLE_STATIC(no)])
+AC_DEFUN(AC_DISABLE_STATIC, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+AC_ENABLE_STATIC(no)])
# AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag
# Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]
# Where DEFAULT is either `yes' or `no'. If omitted, it defaults to
# `yes'.
-AC_DEFUN(AC_ENABLE_FAST_INSTALL,
-[define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
+AC_DEFUN(AC_ENABLE_FAST_INSTALL, [dnl
+define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl
AC_ARG_ENABLE(fast-install,
changequote(<<, >>)dnl
<< --enable-fast-install[=PKGS] optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],
@@ -313,9 +318,8 @@ enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl
])
# AC_ENABLE_FAST_INSTALL - set the default to --disable-fast-install
-AC_DEFUN(AC_DISABLE_FAST_INSTALL,
-[AC_ENABLE_FAST_INSTALL(no)])
-
+AC_DEFUN(AC_DISABLE_FAST_INSTALL, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+AC_ENABLE_FAST_INSTALL(no)])
# AC_PROG_LD - find the path to the GNU or non-GNU linker
AC_DEFUN(AC_PROG_LD,
@@ -333,7 +337,7 @@ if test "$ac_cv_prog_gcc" = yes; then
case "$ac_prog" in
# Accept absolute paths.
changequote(,)dnl
- /* | [A-Za-z]:[\\/]*)
+ [\\/]* | [A-Za-z]:[\\/]*)
re_direlt='/[^/][^/]*/\.\./'
changequote([,])dnl
# Canonicalize the path of ld
@@ -359,10 +363,10 @@ else
fi
AC_CACHE_VAL(ac_cv_path_LD,
[if test -z "$LD"; then
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
for ac_dir in $PATH; do
test -z "$ac_dir" && ac_dir=.
- if test -f "$ac_dir/$ac_prog"; then
+ if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
ac_cv_path_LD="$ac_dir/$ac_prog"
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some GNU ld's only accept -v.
@@ -385,7 +389,6 @@ else
AC_MSG_RESULT(no)
fi
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
-AC_SUBST(LD)
AC_PROG_LD_GNU
])
@@ -407,10 +410,10 @@ AC_CACHE_VAL(ac_cv_path_NM,
# Let the user override the test.
ac_cv_path_NM="$NM"
else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+ IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"
for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do
test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/nm; then
+ if test -f $ac_dir/nm || test -f $ac_dir/nm$ac_exeext ; then
# Check to see if the nm accepts a BSD-compat flag.
# Adding the `sed 1q' prevents false positives on HP-UX, which says:
# nm: unknown option "B" ignored
@@ -431,230 +434,24 @@ else
fi])
NM="$ac_cv_path_NM"
AC_MSG_RESULT([$NM])
-AC_SUBST(NM)
])
-# AC_SYS_NM_PARSE - Check for command to grab the raw symbol name followed
-# by C symbol name from nm.
-AC_DEFUN(AC_SYS_NM_PARSE,
+# AC_CHECK_LIBM - check for math library
+AC_DEFUN(AC_CHECK_LIBM,
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
-AC_REQUIRE([AC_PROG_NM])dnl
-# Check for command to grab the raw symbol name followed by C symbol from nm.
-AC_MSG_CHECKING([command to parse $NM output])
-AC_CACHE_VAL(ac_cv_sys_global_symbol_pipe,
-[# These are sane defaults that work on at least a few old systems.
-# {They come from Ultrix. What could be older than Ultrix?!! ;)}
-
-changequote(,)dnl
-# Character class describing NM global symbol codes.
-ac_symcode='[BCDEGRST]'
-
-# Regexp to match symbols that can be accessed directly from C.
-ac_sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
-
-# Transform the above into a raw symbol and a C symbol.
-ac_symxfrm='\1 \2\3 \3'
-
-# Transform an extracted symbol line into a proper C declaration
-ac_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
-
-# Define system-specific variables.
-case "$host_os" in
-aix*)
- ac_symcode='[BCDT]'
- ;;
-cygwin* | mingw*)
- ac_symcode='[ABCDGISTW]'
- ;;
-hpux*)
- ac_global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'"
+LIBM=
+case "$lt_target" in
+*-*-beos* | *-*-cygwin*)
+ # These system don't have libm
;;
-irix*)
- ac_symcode='[BCDEGRST]'
+*-ncr-sysv4.3*)
+ AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
+ AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")
;;
-solaris*)
- ac_symcode='[BDT]'
+*)
+ AC_CHECK_LIB(m, main, LIBM="-lm")
;;
esac
-
-# 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=${ac_cv_sys_symbol_underscore=no}
-AC_SUBST(USE_SYMBOL_UNDERSCORE)dnl
-])
-
-# AC_CHECK_LIBM - check for math library
-AC_DEFUN(AC_CHECK_LIBM, [
-AC_CHECK_LIB(mw, _mwvalidcheckl)
-AC_CHECK_LIB(m, cos)
])
# AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
@@ -665,13 +462,14 @@ AC_CHECK_LIB(m, cos)
# '${top_builddir}/' (note the single quotes!) if your package is not
# flat, and, if you're not using automake, define top_builddir as
# appropriate in the Makefiles.
-AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [
+AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
case "$enable_ltdl_convenience" in
no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
"") enable_ltdl_convenience=yes
ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
esac
LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdlc.la
+ INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
])
# AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
@@ -683,16 +481,23 @@ AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [
# flat, and, if you're not using automake, define top_builddir as
# appropriate in the Makefiles.
# In the future, this macro may have to be called after AC_PROG_LIBTOOL.
-AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [
- AC_CHECK_LIB(ltdl, main, LIBLTDL="-lltdl", [
- case "$enable_ltdl_install" in
- no) AC_MSG_WARN([libltdl not installed, but installation disabled]) ;;
- "") enable_ltdl_install=yes
- ac_configure_args="$ac_configure_args --enable-ltdl-install" ;;
- esac
+AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl
+ AC_CHECK_LIB(ltdl, main,
+ [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],
+ [if test x"$enable_ltdl_install" = xno; then
+ AC_MSG_WARN([libltdl not installed, but installation disabled])
+ else
+ enable_ltdl_install=yes
+ fi
])
- if test x"$enable_ltdl_install" != x"no"; then
+ if test x"$enable_ltdl_install" = x"yes"; then
+ ac_configure_args="$ac_configure_args --enable-ltdl-install"
LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdl.la
+ INCLTDL=ifelse($#,1,-I$1,['-I${top_builddir}/libltdl'])
+ else
+ ac_configure_args="$ac_configure_args --enable-ltdl-install=no"
+ LIBLTDL="-lltdl"
+ INCLTDL=
fi
])
@@ -704,9 +509,9 @@ AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl
-AC_DEFUN(AM_SYS_NM_PARSE, [indir([AC_SYS_NM_PARSE])])dnl
-AC_DEFUN(AM_SYS_SYMBOL_UNDERSCORE, [indir([AC_SYS_SYMBOL_UNDERSCORE])])dnl
-AC_DEFUN(AM_SYS_LIBTOOL_CYGWIN, [indir([AC_SYS_LIBTOOL_CYGWIN])])dnl
+
+dnl This is just to silence aclocal about the macro not being used
+ifelse([AC_DISABLE_FAST_INSTALL])dnl
# Like AC_CONFIG_HEADER, but automatically create stamp file.