Fix a libtool issue with some mingw-w64 cross compilers (thanks, Ozka…

…n!). http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15321 http://git.savannah.gnu.org/gitweb/?p=libtool.git;a=commit;h=0ebb734910bf56186dd0c0e84b1c8be507bad336 Fixes Bugzilla #2722.
libsdl-org · May 26, 2015 · 46f758a · 46f758a
1 parent a4f0dae
commit 46f758a
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Showing 2 changed files with 24 additions and 10 deletions.
diff --git a/acinclude/libtool.m4 b/acinclude/libtool.m4
@@ -2186,13 +2186,20 @@ if test "$GCC" = yes; then
     ;;
   esac
   # Ok, now we have the path, separated by spaces, we can step through it
-  # and add multilib dir if necessary.
+  # and add multilib dir if necessary...
   lt_tmp_lt_search_path_spec=
-  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  # ...but if some path already ends with the multilib dir we assume
+  # that all is fine and trust -print-search-dirs as is (GCC 4.2 or newer).
+  case "$lt_multi_os_dir; $lt_search_path_spec " in
+  "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+    lt_multi_os_dir=
+    ;;
+  esac
   for lt_sys_path in $lt_search_path_spec; do
-    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
-      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
-    else
+    if test -d "$lt_sys_path$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+    elif test -n "$lt_multi_os_dir"; then
       test -d "$lt_sys_path" && \
 	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
     fi

diff --git a/configure b/configure
@@ -9912,13 +9912,20 @@ if test "$GCC" = yes; then
     ;;
   esac
   # Ok, now we have the path, separated by spaces, we can step through it
-  # and add multilib dir if necessary.
+  # and add multilib dir if necessary...
   lt_tmp_lt_search_path_spec=
-  lt_multi_os_dir=`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  # ...but if some path already ends with the multilib dir we assume
+  # that all is fine and trust -print-search-dirs as is (GCC 4.2 or newer).
+  case "$lt_multi_os_dir; $lt_search_path_spec " in
+  "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+    lt_multi_os_dir=
+    ;;
+  esac
   for lt_sys_path in $lt_search_path_spec; do
-    if test -d "$lt_sys_path/$lt_multi_os_dir"; then
-      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path/$lt_multi_os_dir"
-    else
+    if test -d "$lt_sys_path$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+    elif test -n "$lt_multi_os_dir"; then
       test -d "$lt_sys_path" && \
 	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
     fi