package/gauche/0002-gc-configure.ac-add-check-for-NO_GETCONTEXT-definition.patch

   1 gc/configure.ac: add check for NO_GETCONTEXT definition
   2
   3 This patch is ported from bdwgc package. Since Gauche uses an internal
   4 copy of the boehm gc code, it is affected by the same problem.
   5
   6 Both configure and configure.ac are modified because autoreconf fails
   7 due to an incompatibility with the version of the autotools used by
   8 Buildroot.
   9
  10 Signed-off-by: Hiroshi Kawashima <kei-k@ca2.so-net.ne.jp>
  11
  12 Original credits of patch in bdwgc package:
  13 Signed-off-by: Samuel Martin <s.martin49@gmail.com>
  14 [yann.morin.1998@free.fr: add a comment, change variable name, use
  15  AS_IF, remove debug traces, use AC_CHECK_FUNCS (as suggested by
  16  Thomas)]
  17 Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
  18 Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  19
  20 diff -ur a/gc/configure b/gc/configure
  21 --- a/gc/configure      2015-11-12 21:41:02.394822056 +0900
  22 +++ b/gc/configure      2015-11-12 22:04:14.655157423 +0900
  23 @@ -16153,6 +16153,23 @@
  24  $as_echo "$ac_cv_fno_strict_aliasing" >&6; }
  25  fi
  26
  27 +# Check for getcontext (uClibc can be configured without it, for example)
  28 +for ac_func in getcontext
  29 +do :
  30 +  ac_fn_c_check_func "$LINENO" "getcontext" "ac_cv_func_getcontext"
  31 +if test "x$ac_cv_func_getcontext" = xyes; then :
  32 +  cat >>confdefs.h <<_ACEOF
  33 +#define HAVE_GETCONTEXT 1
  34 +_ACEOF
  35 +
  36 +fi
  37 +done
  38 +
  39 +if test "$ac_cv_func_getcontext" = "no"; then :
  40 +  CFLAGS="$CFLAGS -DNO_GETCONTEXT"
  41 +   CPPFLAGS="$CPPFLAGS -DNO_GETCONTEXT"
  42 +fi
  43 +
  44  case "$host" in
  45  # While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64
  46  # and unnecessary everywhere.
  47 diff -ur a/gc/configure.ac b/gc/configure.ac
  48 --- a/gc/configure.ac   2015-11-12 22:31:44.851510997 +0900
  49 +++ b/gc/configure.ac   2015-11-12 22:33:39.292191227 +0900
  50 @@ -459,6 +459,12 @@
  51    AC_MSG_RESULT($ac_cv_fno_strict_aliasing)
  52  fi
  53
  54 +# Check for getcontext (uClibc can be configured without it, for example)
  55 +AC_CHECK_FUNCS([getcontext])
  56 +AS_IF([test "$ac_cv_func_getcontext" = "no"],
  57 +  [CFLAGS="$CFLAGS -DNO_GETCONTEXT"
  58 +   CPPFLAGS="$CPPFLAGS -DNO_GETCONTEXT"])
  59 +
  60  case "$host" in
  61  # While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64
  62  # and unnecessary everywhere.