Conversion to autoconf:

* acconfig.h, aclocal.m4: New files.
* configure.in: Rewritten (except for some target-specific code) for autoconf.
* conf.in, configure: New files, generated from the above.
* Makefile.in: Changed magic sequence indicating insertion of makefile
fragments.
(VPATH, srcdir, CC, LIBS, OBJS dependencies): Use @-substitutions from
configure.
(LINKED_HEADERS): Deleted a.out.gnu.h, a.out.h, and host.h.
(config.status, configure): Rewrite rules.
(config-stamp): Depend on conf.  Skip variables that configure is now
substituting itself.
(*.o dependencies): Deleted host.h.
(distclean, realclean): Don't delete host.h.
* as.c: Don't include stdio.h, string.h, sys/types.h.  Include signal.h after
as.h.
* as.h: Include alloca-conf.h first.  Include ctype.h, string.h, strings.h,
stdlib.h, unistd.h, sys/types.h, fopen-bin.h, fopen-same.h, as suggested by
autoconf test results.
[BROKEN_ASSERT]: Don't include assert.h.
(strdup): Declare.
(volatile, const): Define if not __STDC__ and not already defined.
(malloc, realloc) [NEED_MALLOC_DECLARATION]: Declare.
(free) [NEED_FREE_DECLARATION]: Declare.
* gasp.c: Include config.h, stdlib.h (if HAVE_STDLIB_H).  Don't include host.h.
(malloc) [NEED_MALLOC_DECLARATION]: Declare.
* messages.c: Include as.h first.  Include errno.h only if HAVE_ERRNO_H.  If
HAVE_VARARGS_H and not __STDC__, undefine HAVE_STDARG_H.  Set NO_STDARG and
NO_VARARGS as appropriate.
* doc/Makefile.in (srcdir, INSTALL, INSTALL_PROGRAM, INSTALL_DATA): Use
autoconf @-substitutions.

1 files changed, 69 insertions, 0 deletions

diff --git a/gas/aclocal.m4 b/gas/aclocal.m4
new file mode 100644
index 0000000..7d614bd
--- /dev/null
+++ b/gas/aclocal.m4
@@ -0,0 +1,69 @@
+dnl
+dnl The autoconf 1.107 version of this doesn't substitute variables
+dnl in the names of the links or their targets.  This is a problem...
+dnl
+undefine([AC_OUTPUT_LINKS])dnl
+define(AC_OUTPUT_LINKS,
+[EOF
+
+cat >> ${CONFIG_STATUS} <<EOF
+ac_links="$1"
+ac_files="$2"
+EOF
+
+cat >> ${CONFIG_STATUS} <<\EOF
+while test -n "${ac_files}"; do
+  set ${ac_links}; ac_link=[$]1; shift; ac_links=[$]*
+  set ${ac_files}; ac_file=[$]1; shift; ac_files=[$]*
+
+  echo "linking ${ac_link} to ${srcdir}/${ac_file}"
+
+  if test ! -r ${srcdir}/${ac_file}; then
+    AC_MSG_ERROR(${srcdir}/${ac_file}: File not found)
+  fi
+  rm -f ${ac_link}
+  # Make a symlink if possible; otherwise try a hard link.
+  if ln -s ${srcdir}/${ac_file} ${ac_link} 2>/dev/null ||
+    ln ${srcdir}/${ac_file} ${ac_link}; then :
+  else
+    AC_MSG_ERROR(can not link ${ac_link} to ${srcdir}/${ac_file})
+  fi
+done
+])dnl
+dnl
+dnl This ugly hack is needed because the Cygnus configure script won't
+dnl tell us what CC is going to be, and "cc" isn't always right.  (The
+dnl top-level Makefile will always override anything we choose here, so
+dnl the usual gcc/cc selection is useless.)
+dnl
+dnl It knows where it is in the tree; don't try using it elsewhere.
+dnl
+undefine([AC_PROG_CC])dnl
+define(AC_PROG_CC,
+[AC_BEFORE([$0], [AC_PROG_CPP])dnl
+AC_PROVIDE([$0])dnl
+dnl
+dnl The ugly bit...
+dnl
+AC_MSG_CHECKING([for CC])
+dnl Don't bother with cache.
+test -z "$CC" && CC=`egrep '^CC *=' ../Makefile | tail -1 | sed 's/^CC *= *//'`
+test -z "$CC" && CC=cc
+AC_MSG_RESULT(setting CC to $CC)
+AC_SUBST(CC)
+dnl
+dnl
+# Find out if we are using GNU C, under whatever name.
+cat > conftest.c <<EOF
+#ifdef __GNUC__
+  yes
+#endif
+EOF
+${CC-cc} -E conftest.c > conftest.out 2>&1
+if egrep yes conftest.out >/dev/null 2>&1; then
+  GCC=yes
+else
+  GCC=
+fi
+rm -f conftest*
+])dnl