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[deliverable/binutils-gdb.git] / libiberty / configure.in

diff --git a/libiberty/configure.in b/libiberty/configure.in
index 65f94027b1db43f6ec81bf346e660429a3336fe7..335737045b54f14ccdd188da55725c53847b7d17 100644 (file)
--- a/libiberty/configure.in
+++ b/libiberty/configure.in
@@ -26,6 +26,57 @@ else
 fi
 AC_CONFIG_AUX_DIR($libiberty_topdir)
 
+dnl Very limited version of automake's enable-maintainer-mode
+
+AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
+  dnl maintainer-mode is disabled by default
+  AC_ARG_ENABLE(maintainer-mode,
+[  --enable-maintainer-mode
+                          enable make rules and dependencies not useful
+                          (and sometimes confusing) to the casual installer],
+      maintainer_mode=$enableval,
+      maintainer_mode=no)
+
+AC_MSG_RESULT($maintainer_mode)
+
+if test "$maintainer_mode" = "yes"; then
+  MAINT=''
+  NOTMAINT='#'
+else
+  MAINT='#'
+  NOTMAINT=''
+fi
+AC_SUBST(MAINT)dnl
+AC_SUBST(NOTMAINT)dnl
+
+# Do we have a single-tree copy of texinfo?  Even if we do, we can't
+# rely on it - libiberty is built before texinfo.
+AC_CHECK_PROG(MAKEINFO, makeinfo, makeinfo, )
+if test "x$MAKEINFO" = "x"; then
+    MAKEINFO="@echo makeinfo missing; true"
+    BUILD_INFO=
+else
+    BUILD_INFO=info
+    case x"`$MAKEINFO --version | grep 'GNU texinfo'`" in
+      x*\ [[1-3]].* )
+       MAKEINFO="@echo $MAKEINFO is too old, 4.0 or newer required; true"
+       BUILD_INFO=
+       AC_MSG_WARN([
+*** Makeinfo is too old. Info documentation will not be built.])
+       ;;
+    esac
+fi
+AC_SUBST(MAKEINFO)
+AC_SUBST(BUILD_INFO)
+
+AC_CHECK_PROG(PERL, perl, perl, )
+if test x"$PERL" = x""; then
+  HAVE_PERL='#'
+else
+  HAVE_PERL=''
+fi
+AC_SUBST(HAVE_PERL)
+
 AC_CANONICAL_HOST
 
 dnl When we start using automake:
@@ -69,12 +120,19 @@ AC_SUBST_FILE(host_makefile_frag)
 # It's OK to check for header files.  Although the compiler may not be
 # able to link anything, it had better be able to at least compile
 # something.
-AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h)
+AC_CHECK_HEADERS(sys/file.h sys/param.h limits.h stdlib.h string.h unistd.h strings.h sys/time.h time.h sys/resource.h sys/stat.h sys/mman.h fcntl.h alloca.h)
 AC_HEADER_SYS_WAIT
 AC_HEADER_TIME
 
 libiberty_AC_DECLARE_ERRNO
 
+AC_CHECK_TYPE(uintptr_t, unsigned long)
+
+if test $ac_cv_type_uintptr_t = yes
+then
+  AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if you have the \`uintptr_t' type.])
+fi
+
 # This is the list of functions which libiberty will provide if they
 # are not available on the host.
 
@@ -190,6 +248,13 @@ fi
 
 AC_SUBST(CHECK)
 
+case "${host}" in
+  *-*-cygwin*)
+    AC_DEFINE_NOAUTOHEADER(HAVE_SYS_ERRLIST)
+    AC_DEFINE_NOAUTOHEADER(HAVE_SYS_NERR)
+    ;;
+esac
+
 if test -z "${setobjs}"; then
   case "${host}" in
 
@@ -270,6 +335,13 @@ if test -z "${setobjs}"; then
     libiberty_cv_var_sys_errlist=yes
     ;;
 
+  *-*-*vms*)
+    # Under VMS, vfork works very different than on Unix. The standard test 
+    # won't work, and it isn't easily adaptable. It makes more sense to
+    # just force it.
+    ac_cv_func_vfork_works=yes
+    ;;
+
   esac
 
   # We haven't set the list of objects yet.  Use the standard autoconf
@@ -281,6 +353,13 @@ if test -z "${setobjs}"; then
   if test $ac_cv_func_vfork_works = no; then
     LIBOBJS="$LIBOBJS vfork.o"
   fi
+  # We only need _doprnt if we might use it to implement v*printf.
+  if test $ac_cv_func_vprintf != yes \
+     || test $ac_cv_func_vfprintf != yes \
+     || test $ac_cv_func_vsprintf != yes; then
+    AC_REPLACE_FUNCS(_doprnt)
+  fi
+
   for v in $vars; do
     AC_MSG_CHECKING([for $v])
     AC_CACHE_VAL(libiberty_cv_var_$v,