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* configure.in (RUBY_EXTERN): ignore invalid attribute.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28713 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2010-07-22 03:58:18 +00:00
parent cc703f2d56
commit d5a1efdc61
2 changed files with 22 additions and 13 deletions
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4
ChangeLog
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@ -1,4 +1,6 @@
Thu Jul 22 12:30:52 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
Thu Jul 22 12:58:12 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* configure.in (RUBY_EXTERN): ignore invalid attribute.
* configure.in: fix for older autoconf.

31
configure.in
View file

@ -676,6 +676,21 @@ EOH
])dnl
])dnl
AC_DEFUN([RUBY_WERROR_FLAG], [dnl
if test "${ac_c_werror_flag+set}"; then
rb_c_werror_flag="$ac_c_werror_flag"
else
unset rb_c_werror_flag
fi
ac_c_werror_flag=yes
$1
if test "${rb_c_werror_flag+set}"; then
ac_c_werror_flag="$rb_c_werror_flag"
else
unset ac_c_werror_flag
fi])
dnl RUBY_FUNC_ATTRIBUTE(attrib, macroname, cachevar, condition)
AC_DEFUN([RUBY_FUNC_ATTRIBUTE], [dnl
m4_ifval([$2], dnl
[AS_VAR_PUSHDEF([attrib],[$2])], dnl
@ -688,12 +703,7 @@ m4_ifval([$3], dnl
m4_ifval([$4], [rbcv_cond=[$4]; test "$rbcv_cond" || unset rbcv_cond])
AC_CACHE_CHECK(for [$1] function attribute, rbcv,
[rbcv=x
if test "${ac_c_werror_flag+set}"; then
rb_c_werror_flag="$ac_c_werror_flag"
else
unset rb_c_werror_flag
fi
ac_c_werror_flag=yes
RUBY_WERROR_FLAG([
for mac in "__attribute__ (($1)) x" "x __attribute__ (($1))" "__declspec($1) x" x; do
m4_ifval([$4],mac="$mac"${rbcv_cond+" /* only if $rbcv_cond */"})
AC_TRY_COMPILE(
@ -705,12 +715,7 @@ ${rbcv_cond+[@%:@endif]})
attrib[(void conftest_attribute_check(void));], [],
[rbcv="$mac"; break])
done
if test "${rb_c_werror_flag+set}"; then
ac_c_werror_flag="$rb_c_werror_flag"
else
unset ac_c_werror_flag
fi
])
])])
if test "$rbcv" != x; then
RUBY_DEFINE_IF([${rbcv_cond}], attrib[(x)], $rbcv)
fi
@ -745,12 +750,14 @@ fi
AC_CACHE_CHECK([for RUBY_EXTERN], rb_cv_ruby_extern,
[rb_cv_ruby_extern=no
RUBY_WERROR_FLAG([
for mac in "__attribute__((dllimport))" "__declspec(dllimport)"; do
AC_TRY_COMPILE(
[extern $mac void conftest(void);],
[conftest();],
[rb_cv_ruby_extern="extern $mac"; break])
done])
])
test "x$rb_cv_ruby_extern" = xno || AC_DEFINE_UNQUOTED(RUBY_EXTERN, $rb_cv_ruby_extern)
RUBY_APPEND_OPTION(XCFLAGS, -DRUBY_EXPORT)