bfd/ChangeLog:

[deliverable/binutils-gdb.git] / gas / configure

diff --git a/gas/configure b/gas/configure
index b466d5fd9f6b09d9128b3b762905c3e4d9bd953a..530fa0d1e95a8e0a8cc0c9aab9557716dcd95330 100755 (executable)
--- a/gas/configure
+++ b/gas/configure
@@ -766,6 +766,7 @@ enable_werror
 enable_build_warnings
 enable_nls
 enable_maintainer_mode
+with_zlib
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1419,6 +1420,7 @@ Optional Packages:
   --with-pic              try to use only PIC/non-PIC objects [default=use
                           both]
   --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-zlib             include zlib support (auto/yes/no) default=auto
 
 Some influential environment variables:
   CC          C compiler command
@@ -11193,7 +11195,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11196 "configure"
+#line 11198 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11299,7 +11301,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11302 "configure"
+#line 11304 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13984,6 +13986,92 @@ $as_echo "#define USE_BINARY_FOPEN 1" >>confdefs.h
  ;;
 esac
 
+# Link in zlib if we can.  This allows us to write compressed debug sections.
+
+  # See if the user specified whether he wants zlib support or not.
+
+# Check whether --with-zlib was given.
+if test "${with_zlib+set}" = set; then :
+  withval=$with_zlib;
+else
+  with_zlib=auto
+fi
+
+
+  if test "$with_zlib" != "no"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing zlibVersion" >&5
+$as_echo_n "checking for library containing zlibVersion... " >&6; }
+if test "${ac_cv_search_zlibVersion+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char zlibVersion ();
+int
+main ()
+{
+return zlibVersion ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' z; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_zlibVersion=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if test "${ac_cv_search_zlibVersion+set}" = set; then :
+  break
+fi
+done
+if test "${ac_cv_search_zlibVersion+set}" = set; then :
+
+else
+  ac_cv_search_zlibVersion=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_zlibVersion" >&5
+$as_echo "$ac_cv_search_zlibVersion" >&6; }
+ac_res=$ac_cv_search_zlibVersion
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+  for ac_header in zlib.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "zlib.h" "ac_cv_header_zlib_h" "$ac_includes_default"
+if test "x$ac_cv_header_zlib_h" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_ZLIB_H 1
+_ACEOF
+
+fi
+
+done
+
+fi
+
+    if test "$with_zlib" = "yes" -a "$ac_cv_header_zlib_h" != "yes"; then
+      as_fn_error "zlib (libz) library was explicitly requested but not found" "$LINENO" 5
+    fi
+  fi
+
+
 # Support for VMS timestamps via cross compile
 
 if test "$ac_cv_header_time_h" = yes; then