Enable 64-bit archives in ar and ranlib

[deliverable/binutils-gdb.git] / bfd / configure.ac

diff --git a/bfd/configure.ac b/bfd/configure.ac
index f57d4d78dc2473f1a6687940208c7f7e6e5886f2..103624857614688f387b13c445a05e5ee769718c 100644 (file)
--- a/bfd/configure.ac
+++ b/bfd/configure.ac
@@ -68,6 +68,15 @@ AC_ARG_ENABLE(targets,
   *)        enable_targets=$enableval ;;
 esac])dnl
 
+AC_ARG_ENABLE(64_bit_archive,
+             AS_HELP_STRING([--enable-64-bit-archive],
+             [force 64-bit archives]),
+[case "${enableval}" in
+  yes)  want_64_bit_archive=true  ;;
+  no)   want_64_bit_archive=false ;;
+  *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-archive option) ;;
+esac],[want_64_bit_archive=unset])dnl
+
 AC_ARG_WITH(mmap,
 [  --with-mmap             try using mmap for BFD input files if available],
 [case "${withval}" in
@@ -775,6 +784,22 @@ else       # all_targets is true
     selarchs=`echo $selarchs | sed -e 's/^/\&/' -e 's/ \(.\)/,\&\1/g'`
 fi     # all_targets is true
 
+if test "x$want_64_bit_archive" = xunset; then
+  # 64-bit MIPS and s390 ELF targets use 64-bit archives.
+  case "${bfd_backends}" in
+    *elf64-mips* | *elf64-s390*)
+      want_64_bit_archive=true
+      ;;
+  esac
+fi
+
+# 64-bit archives need a 64-bit bfd_vma.
+if test "x$want_64_bit_archive" = xtrue; then
+  want64=true
+  AC_DEFINE(USE_64_BIT_ARCHIVE, 1,
+    [Define if we should use 64-bit archives.])
+fi
+
 case ${host64}-${target64}-${want64} in
   *true*)
     wordsize=64