toolchain/gcc/patches/5.2.0/209-musl_libstdc++.patch

   1 From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
   2 Date: Wed, 22 Apr 2015 14:24:11 +0000 (+0000)
   3 Subject: libstdc++, libgfortran gthr workaround for musl
   4 X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=1e5f711c11cb80ce609db9e9c1d8b2da0f7b5b61
   5
   6 libstdc++, libgfortran gthr workaround for musl
   7
   8 On behalf of szabolcs.nagy@arm.com
   9
  10 [libstdc++-v3/]
  11 2015-04-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>
  12
  13         * config/os/generic/os_defines.h (_GLIBCXX_GTHREAD_USE_WEAK): Define.
  14         * configure.host (os_include_dir): Set to "os/generic" for linux-musl*.
  15
  16 [libgfortran/]
  17 2015-04-22  Szabolcs Nagy  <szabolcs.nagy@arm.com>
  18
  19         * acinclude.m4 (GTHREAD_USE_WEAK): Define as 0 for *-*-musl*.
  20         * configure: Regenerate.
  21
  22
  23
  24 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222329 138bc75d-0d04-0410-961f-82ee72b054a4
  25 ---
  26
  27 --- a/libgfortran/acinclude.m4
  28 +++ b/libgfortran/acinclude.m4
  29 @@ -100,7 +100,7 @@ void foo (void);
  30               [Define to 1 if the target supports #pragma weak])
  31    fi
  32    case "$host" in
  33 -    *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* )
  34 +    *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* | *-*-musl* )
  35        AC_DEFINE(GTHREAD_USE_WEAK, 0,
  36                 [Define to 0 if the target shouldn't use #pragma weak])
  37        ;;
  38 --- a/libgfortran/configure
  39 +++ b/libgfortran/configure
  40 @@ -26447,7 +26447,7 @@ $as_echo "#define SUPPORTS_WEAK 1" >>con
  41
  42    fi
  43    case "$host" in
  44 -    *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* )
  45 +    *-*-darwin* | *-*-hpux* | *-*-cygwin* | *-*-mingw* | *-*-musl* )
  46
  47  $as_echo "#define GTHREAD_USE_WEAK 0" >>confdefs.h
  48
  49 --- a/libstdc++-v3/config/os/generic/os_defines.h
  50 +++ b/libstdc++-v3/config/os/generic/os_defines.h
  51 @@ -33,4 +33,9 @@
  52  // System-specific #define, typedefs, corrections, etc, go here.  This
  53  // file will come before all others.
  54
  55 +// Disable the weak reference logic in gthr.h for os/generic because it
  56 +// is broken on every platform unless there is implementation specific
  57 +// workaround in gthr-posix.h and at link-time for static linking.
  58 +#define _GLIBCXX_GTHREAD_USE_WEAK 0
  59 +
  60  #endif
  61 --- a/libstdc++-v3/configure.host
  62 +++ b/libstdc++-v3/configure.host
  63 @@ -273,6 +273,9 @@ case "${host_os}" in
  64    freebsd*)
  65      os_include_dir="os/bsd/freebsd"
  66      ;;
  67 +  linux-musl*)
  68 +    os_include_dir="os/generic"
  69 +    ;;
  70    gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
  71      if [ "$uclibc" = "yes" ]; then
  72        os_include_dir="os/uclibc"