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cxa_demangle check

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This commit is contained in:
Glenn Maynard
2003-12-22 02:14:40 +00:00
parent a1458b2095
commit 4f6d8b0ef5
1 changed files with 46 additions and 6 deletions
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stepmania/autoconf/m4/backtrace.m4
+46 -6
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@@ -33,7 +33,34 @@ AC_DEFUN(SM_FUNC_BACKTRACE_SYMBOLS,
AC_MSG_RESULT($have_backtrace_symbols)
])
AC_DEFUN(SM_FUNC_CXA_DEMANGLE,
[
# Check for abi::__cxa_demangle (gcc 3.1+)
AC_MSG_CHECKING(for working cxa_demangle)
AC_LANG_PUSH(C++)
AC_TRY_RUN(
[
#include <cxxabi.h>
#include <stdlib.h>
#include <typeinfo>
int main()
{
struct foo { } fum;
int status;
char *realname = abi::__cxa_demangle(typeid(fum).name(), 0, 0, &status);
free( realname );
return 0;
}
], have_cxa_demangle=yes,have_cxa_demangle=no,have_cxa_demangle=no
)
AC_LANG_POP(C++)
AC_MSG_RESULT($have_cxa_demangle)
if test "$have_cxa_demangle" = "yes"; then
AC_DEFINE(HAVE_CXA_DEMANGLE, 1, [abi::__cxa_demangle available])
fi
])
# To support backtraces in the crash handler, we need two things: a call to
# get backtrace pointers, and a way to convert them to symbols.
AC_DEFUN(SM_CHECK_CRASH_HANDLER,
@@ -91,18 +118,31 @@ AC_DEFUN(SM_CHECK_CRASH_HANDLER,
# All current symbol lookup methods need this flag.
LDFLAGS="$LDFLAGS -rdynamic"
# Check for libiberty. This makes backtraces much nicer.
AC_CHECK_HEADER(libiberty.h, have_iberty_header=yes, have_iberty_header=no)
AC_SEARCH_LIBS(cplus_demangle, [iberty], have_iberty_lib=yes, have_iberty_lib=no)
SM_FUNC_CXA_DEMANGLE
if test "$have_cxa_demangle" = "yes"; then
have_demangle=yes
AC_DEFINE([BACKTRACE_DEMANGLE_METHOD_TEXT],["cxa_demangle"],[Define demangle type])
fi
if test "$have_demangle" != "yes"; then
# Check for libiberty.
AC_CHECK_HEADER(libiberty.h, have_iberty_header=yes, have_iberty_header=no)
AC_SEARCH_LIBS(cplus_demangle, [iberty], have_iberty_lib=yes, have_iberty_lib=no)
if test $have_iberty_lib = "yes" -a $have_iberty_header = "yes"; then
AC_DEFINE(HAVE_LIBIBERTY, 1, [Liberty available])
else
if test $have_iberty_lib = "yes" -a $have_iberty_header = "yes"; then
AC_DEFINE(HAVE_LIBIBERTY, 1, [Liberty available])
have_demangle=yes
AC_DEFINE([BACKTRACE_DEMANGLE_METHOD_TEXT],["libiberty"],[Define demangle type])
fi
fi
if test "$have_demangle" != "yes"; then
echo
echo "*** Backtrace support has been detected, but libiberty is not installed."
echo "*** Libiberty will make crash reports for developers much easier to read,"
echo "*** and is strongly recommended."
echo
AC_DEFINE([BACKTRACE_DEMANGLE_METHOD_TEXT],["none"],[Define demangle type])
fi
fi
])