--- old/common/autoconf/lib-std.m4 2016-09-28 17:20:55.859407527 +0200 +++ new/common/autoconf/lib-std.m4 2016-09-28 17:20:55.795404845 +0200 @@ -45,84 +45,46 @@ ) if test "x$OPENJDK_TARGET_OS" = xlinux; then - # Test if -lstdc++ works. - AC_MSG_CHECKING([if dynamic link of stdc++ is possible]) - AC_LANG_PUSH(C++) - OLD_CXXFLAGS="$CXXFLAGS" - CXXFLAGS="$CXXFLAGS -lstdc++" - AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])], - [has_dynamic_libstdcxx=yes], - [has_dynamic_libstdcxx=no]) - CXXFLAGS="$OLD_CXXFLAGS" - AC_LANG_POP(C++) - AC_MSG_RESULT([$has_dynamic_libstdcxx]) - # Test if stdc++ can be linked statically. AC_MSG_CHECKING([if static link of stdc++ is possible]) - STATIC_STDCXX_FLAGS="-Wl,-Bstatic -lstdc++ -lgcc -Wl,-Bdynamic" + STATIC_STDCXX_FLAGS="-static-libstdc++ -static-libgcc" AC_LANG_PUSH(C++) OLD_LIBS="$LIBS" - OLD_CXX="$CXX" LIBS="$STATIC_STDCXX_FLAGS" - CXX="$CC" AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])], [has_static_libstdcxx=yes], [has_static_libstdcxx=no]) LIBS="$OLD_LIBS" - CXX="$OLD_CXX" AC_LANG_POP(C++) AC_MSG_RESULT([$has_static_libstdcxx]) - if test "x$has_static_libstdcxx" = xno && test "x$has_dynamic_libstdcxx" = xno; then - AC_MSG_ERROR([Cannot link to stdc++, neither dynamically nor statically!]) - fi - if test "x$with_stdc__lib" = xstatic && test "x$has_static_libstdcxx" = xno; then AC_MSG_ERROR([Static linking of libstdc++ was not possible!]) fi - if test "x$with_stdc__lib" = xdynamic && test "x$has_dynamic_libstdcxx" = xno; then - AC_MSG_ERROR([Dynamic linking of libstdc++ was not possible!]) - fi - # If dynamic was requested, it's available since it would fail above otherwise. # If dynamic wasn't requested, go with static unless it isn't available. AC_MSG_CHECKING([how to link with libstdc++]) - if test "x$with_stdc__lib" = xdynamic || test "x$has_static_libstdcxx" = xno || HOTSPOT_CHECK_JVM_VARIANT(zeroshark); then - LIBCXX="$LIBCXX -lstdc++" - # To help comparisons with old build, put stdc++ first in JVM_LIBS - JVM_LIBS="-lstdc++ $JVM_LIBS" + if test "x$with_stdc__lib" = xdynamic || test "x$has_static_libstdcxx" = xno \ + || HOTSPOT_CHECK_JVM_VARIANT(zeroshark); then # Ideally, we should test stdc++ for the BUILD toolchain separately. For now # just use the same setting as for the TARGET toolchain. - OPENJDK_BUILD_JVM_LIBS="-lstdc++ $OPENJDK_BUILD_JVM_LIBS" - LDCXX="$CXX" - STATIC_CXX_SETTING="STATIC_CXX=false" AC_MSG_RESULT([dynamic]) else LIBCXX="$LIBCXX $STATIC_STDCXX_FLAGS" - JVM_LDFLAGS="$JVM_LDFLAGS -static-libgcc" - # To help comparisons with old build, put stdc++ first in JVM_LIBS - JVM_LIBS="-Wl,-Bstatic -lstdc++ -Wl,-Bdynamic $JVM_LIBS" + JVM_LDFLAGS="$JVM_LDFLAGS $STATIC_STDCXX_FLAGS" # Ideally, we should test stdc++ for the BUILD toolchain separately. For now # just use the same setting as for the TARGET toolchain. - OPENJDK_BUILD_JVM_LDFLAGS="$OPENJDK_BUILD_JVM_LDFLAGS -static-libgcc" - OPENJDK_BUILD_JVM_LIBS="-Wl,-Bstatic -lstdc++ -Wl,-Bdynamic $OPENJDK_BUILD_JVM_LIBS" - LDCXX="$CC" - STATIC_CXX_SETTING="STATIC_CXX=true" + OPENJDK_BUILD_JVM_LDFLAGS="$OPENJDK_BUILD_JVM_LDFLAGS $STATIC_STDCXX_FLAGS" AC_MSG_RESULT([static]) fi fi - AC_SUBST(STATIC_CXX_SETTING) # libCrun is the c++ runtime-library with SunStudio (roughly the equivalent of gcc's libstdc++.so) if test "x$TOOLCHAIN_TYPE" = xsolstudio && test "x$LIBCXX" = x; then LIBCXX="${SYSROOT}/usr/lib${OPENJDK_TARGET_CPU_ISADIR}/libCrun.so.1" fi - # TODO better (platform agnostic) test - if test "x$OPENJDK_TARGET_OS" = xmacosx && test "x$LIBCXX" = x && test "x$TOOLCHAIN_TYPE" = xgcc; then - LIBCXX="-lstdc++" - fi AC_SUBST(LIBCXX) # Setup Windows runtime dlls