diff options
Diffstat (limited to 'toolchain-layer/recipes-devtools/gcc/gcc-4.6/GPLUSPLUS_INCLUDE_DIR_with_sysroot.patch')
| -rw-r--r-- | toolchain-layer/recipes-devtools/gcc/gcc-4.6/GPLUSPLUS_INCLUDE_DIR_with_sysroot.patch | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/toolchain-layer/recipes-devtools/gcc/gcc-4.6/GPLUSPLUS_INCLUDE_DIR_with_sysroot.patch b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/GPLUSPLUS_INCLUDE_DIR_with_sysroot.patch new file mode 100644 index 0000000000..575e0e4b41 --- /dev/null +++ b/toolchain-layer/recipes-devtools/gcc/gcc-4.6/GPLUSPLUS_INCLUDE_DIR_with_sysroot.patch @@ -0,0 +1,186 @@ +source: http://patchwork.ozlabs.org/patch/129800/ +Upstream-Status: Submitted + +ChangeLog + * Makefile.in (gcc_gxx_include_dir_add_sysroot): New. + (PREPROCESSOR_DEFINES): Define GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT. + + * cppdefault.c (cpp_include_defaults): replace hard coded "1" with + GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT for "add_sysroot" field. + + * configure.ac (AC_SUBST): Add gcc_gxx_include_dir_add_sysroot to + control whether sysroot should be prepended to gxx include dir. + + * configure: Regenerate. + +Hi, this is a follow up for issue "http://codereview.appspot.com/4641076". + +The rationale for the patch copied from previous thread: +======================================= +The setup: + +Configuring a toolchain targeting x86-64 GNU Linux (Ubuntu Lucid), as a +cross-compiler. Using a sysroot to provide the Lucid headers+libraries, +with the sysroot path being within the GCC install tree. Want to use the +Lucid system libstdc++ and headers, which means that I'm not +building/installing libstdc++-v3. + +So, configuring with: + --with-sysroot="$SYSROOT" + --disable-libstdc++-v3 \ + --with-gxx-include-dir="$SYSROOT/usr/include/c++/4.4" \ +(among other options). + +Hoping to support two usage models with this configuration, w.r.t. use of +the sysroot: + +(1) somebody installs the sysroot in the normal location relative to the +GCC install, and relocates the whole bundle (sysroot+GCC). This works +great AFAICT, GCC finds its includes (including the C++ includes) thanks +to the add_standard_paths iprefix handling. + +(2) somebody installs the sysroot in a non-standard location, and uses +--sysroot to try to access it. This works fine for the C headers, but +doesn't work. + +For the C headers, add_standard_paths prepends the sysroot location to +the /usr/include path (since that's what's specified in cppdefault.c for +that path). It doesn't do the same for the C++ include path, though +(again, as specified in cppdefault.c). + +add_standard_paths doesn't attempt to relocate built-in include paths that +start with the compiled-in sysroot location (e.g., the g++ include dir, in +this case). This isn't surprising really: normally you either prepend the +sysroot location or you don't (as specified by cppdefault.c); none of the +built-in paths normally *start* with the sysroot location and need to be +relocated. However, in this odd-ball case of trying to use the C++ headers +from the sysroot, one of the paths *does* need to be relocated in this way. +=========================== +Index: gcc-4_6-branch/gcc/Makefile.in +=================================================================== +--- gcc-4_6-branch.orig/gcc/Makefile.in 2012-03-04 09:33:36.000000000 -0800 ++++ gcc-4_6-branch/gcc/Makefile.in 2012-03-04 09:41:06.858672113 -0800 +@@ -587,6 +587,7 @@ + build_tooldir = $(exec_prefix)/$(target_noncanonical) + # Directory in which the compiler finds target-independent g++ includes. + gcc_gxx_include_dir = @gcc_gxx_include_dir@ ++gcc_gxx_include_dir_add_sysroot = @gcc_gxx_include_dir_add_sysroot@ + # Directory to search for site-specific includes. + local_includedir = $(local_prefix)/include + includedir = $(prefix)/include +@@ -3964,6 +3965,7 @@ + -DGCC_INCLUDE_DIR=\"$(libsubdir)/include\" \ + -DFIXED_INCLUDE_DIR=\"$(libsubdir)/include-fixed\" \ + -DGPLUSPLUS_INCLUDE_DIR=\"$(gcc_gxx_include_dir)\" \ ++ -DGPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT=$(gcc_gxx_include_dir_add_sysroot) \ + -DGPLUSPLUS_TOOL_INCLUDE_DIR=\"$(gcc_gxx_include_dir)/$(target_noncanonical)\" \ + -DGPLUSPLUS_BACKWARD_INCLUDE_DIR=\"$(gcc_gxx_include_dir)/backward\" \ + -DLOCAL_INCLUDE_DIR=\"$(local_includedir)\" \ +Index: gcc-4_6-branch/gcc/configure.ac +=================================================================== +--- gcc-4_6-branch.orig/gcc/configure.ac 2012-03-04 09:33:36.000000000 -0800 ++++ gcc-4_6-branch/gcc/configure.ac 2012-03-04 09:41:06.862671939 -0800 +@@ -144,6 +144,15 @@ + fi + fi + ++gcc_gxx_include_dir_add_sysroot=0 ++if test "${with_sysroot+set}" = set; then : ++ gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'` ++ if test "${gcc_gxx_without_sysroot}"; then : ++ gcc_gxx_include_dir="${gcc_gxx_without_sysroot}" ++ gcc_gxx_include_dir_add_sysroot=1 ++ fi ++fi ++ + AC_ARG_WITH(cpp_install_dir, + [ --with-cpp-install-dir=DIR + install the user visible C preprocessor in DIR +@@ -4727,6 +4736,7 @@ + AC_SUBST(float_h_file) + AC_SUBST(gcc_config_arguments) + AC_SUBST(gcc_gxx_include_dir) ++AC_SUBST(gcc_gxx_include_dir_add_sysroot) + AC_SUBST(host_exeext) + AC_SUBST(host_xm_file_list) + AC_SUBST(host_xm_include_list) +Index: gcc-4_6-branch/gcc/cppdefault.c +=================================================================== +--- gcc-4_6-branch.orig/gcc/cppdefault.c 2012-03-03 01:03:17.000000000 -0800 ++++ gcc-4_6-branch/gcc/cppdefault.c 2012-03-04 09:41:06.862671939 -0800 +@@ -48,15 +48,18 @@ + = { + #ifdef GPLUSPLUS_INCLUDE_DIR + /* Pick up GNU C++ generic include files. */ +- { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, 0, 0 }, ++ { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1, ++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, + #endif + #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR + /* Pick up GNU C++ target-dependent include files. */ +- { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, 0, 1 }, ++ { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1, ++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 }, + #endif + #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR + /* Pick up GNU C++ backward and deprecated include files. */ +- { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, 0, 0 }, ++ { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1, ++ GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 }, + #endif + #ifdef GCC_INCLUDE_DIR + /* This is the dir for gcc's private headers. */ +Index: gcc-4_6-branch/gcc/configure +=================================================================== +--- gcc-4_6-branch.orig/gcc/configure 2012-03-04 09:33:36.000000000 -0800 ++++ gcc-4_6-branch/gcc/configure 2012-03-04 09:41:12.462671816 -0800 +@@ -636,6 +636,7 @@ + host_xm_include_list + host_xm_file_list + host_exeext ++gcc_gxx_include_dir_add_sysroot + gcc_gxx_include_dir + gcc_config_arguments + float_h_file +@@ -3313,6 +3314,15 @@ + fi + fi + ++gcc_gxx_include_dir_add_sysroot=0 ++if test "${with_sysroot+set}" = set; then : ++ gcc_gxx_without_sysroot=`expr "${gcc_gxx_include_dir}" : "${with_sysroot}"'\(.*\)'` ++ if test "${gcc_gxx_without_sysroot}"; then : ++ gcc_gxx_include_dir="${gcc_gxx_without_sysroot}" ++ gcc_gxx_include_dir_add_sysroot=1 ++ fi ++fi ++ + + # Check whether --with-cpp_install_dir was given. + if test "${with_cpp_install_dir+set}" = set; then : +@@ -17504,7 +17514,7 @@ + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +-#line 17507 "configure" ++#line 17517 "configure" + #include "confdefs.h" + + #if HAVE_DLFCN_H +@@ -17610,7 +17620,7 @@ + lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 + lt_status=$lt_dlunknown + cat > conftest.$ac_ext <<_LT_EOF +-#line 17613 "configure" ++#line 17623 "configure" + #include "confdefs.h" + + #if HAVE_DLFCN_H +@@ -26141,6 +26151,7 @@ + + + ++ + + + |