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use C++ for variadic macros test as e.g. gcc 2.95.4 supports them while g++ 2.95 does not

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43268 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2006-11-10 12:40:38 +00:00
parent 715d53e4e1
commit 38c6938f8d
2 changed files with 17 additions and 1 deletions
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14
configure vendored
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@@ -21603,6 +21603,12 @@ if test "${wx_cv_have_variadic_macros+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
ac_ext=cc
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
@@ -21633,7 +21639,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ ac_try='test -z "$ac_cxx_werror_flag" || test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
@@ -21654,6 +21660,12 @@ wx_cv_have_variadic_macros=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
fi

4
configure.in
View File

@@ -1974,6 +1974,9 @@ AC_CACHE_CHECK(
[whether the compiler supports variadic macros],
[wx_cv_have_variadic_macros],
[
dnl C compiler might support variadic macros when C++ one doesn't
dnl (happens with gcc/g++ 2.95.4), so must use C++ one explicitly
AC_LANG_PUSH(C++)
AC_COMPILE_IFELSE(
AC_LANG_PROGRAM(
[
@@ -1987,6 +1990,7 @@ AC_CACHE_CHECK(
[wx_cv_have_variadic_macros=yes],
[wx_cv_have_variadic_macros=no]
)
AC_LANG_POP()
]
)