gdb: fix vfork with multiple threads

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

diff --git a/zlib/configure b/zlib/configure
index de6fa7e99600e06581ecfe2143197da1c17e396f..695819cd54b4fd64bfa9601cb581b2ab0ee0bdb8 100755 (executable)
--- a/zlib/configure
+++ b/zlib/configure
@@ -5407,6 +5407,19 @@ test -z "$deplibs_check_method" && deplibs_check_method=unknown
 
 
 
+plugin_option=
+plugin_names="liblto_plugin.so liblto_plugin-0.dll cyglto_plugin-0.dll"
+for plugin in $plugin_names; do
+  plugin_so=`${CC} ${CFLAGS} --print-prog-name $plugin`
+  if test x$plugin_so = x$plugin; then
+    plugin_so=`${CC} ${CFLAGS} --print-file-name $plugin`
+  fi
+  if test x$plugin_so != x$plugin; then
+    plugin_option="--plugin $plugin_so"
+    break
+  fi
+done
+
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
 set dummy ${ac_tool_prefix}ar; ac_word=$2
@@ -5500,6 +5513,19 @@ else
 fi
 
 test -z "$AR" && AR=ar
+if test -n "$plugin_option"; then
+  if $AR --help 2>&1 | grep -q "\--plugin"; then
+    touch conftest.c
+    $AR $plugin_option rc conftest.a conftest.c
+    if test "$?" != 0; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Failed: $AR $plugin_option rc" >&5
+$as_echo "$as_me: WARNING: Failed: $AR $plugin_option rc" >&2;}
+    else
+      AR="$AR $plugin_option"
+    fi
+    rm -f conftest.*
+  fi
+fi
 test -z "$AR_FLAGS" && AR_FLAGS=cru
 
 
@@ -5704,6 +5730,11 @@ else
 fi
 
 test -z "$RANLIB" && RANLIB=:
+if test -n "$plugin_option" && test "$RANLIB" != ":"; then
+  if $RANLIB --help 2>&1 | grep -q "\--plugin"; then
+    RANLIB="$RANLIB $plugin_option"
+  fi
+fi
 
 
 
@@ -9811,16 +9842,6 @@ freebsd* | dragonfly*)
   esac
   ;;
 
-gnu*)
-  version_type=linux
-  need_lib_prefix=no
-  need_version=no
-  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}${major} ${libname}${shared_ext}'
-  soname_spec='${libname}${release}${shared_ext}$major'
-  shlibpath_var=LD_LIBRARY_PATH
-  hardcode_into_libs=yes
-  ;;
-
 haiku*)
   version_type=linux
   need_lib_prefix=no
@@ -9937,7 +9958,7 @@ linux*oldld* | linux*aout* | linux*coff*)
   ;;
 
 # This must be Linux ELF.
-linux* | k*bsd*-gnu | kopensolaris*-gnu)
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
   version_type=linux
   need_lib_prefix=no
   need_version=no
@@ -10644,7 +10665,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10647 "configure"
+#line 10668 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -10750,7 +10771,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 10753 "configure"
+#line 10774 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H