| dnl |
| dnl Check for working do while(0) macros. This is used by G_STMT_START |
| dnl and G_STMT_END in glib/gmacros.h. Without having this defined we |
| dnl get "ambigious if-else" compiler warnings when compling C++ code. |
| dnl |
| dnl Copied from GLib's configure.in |
| dnl |
| AC_DEFUN([AG_GST_CHECK_DOWHILE_MACROS],[ |
| |
| dnl *** check for working do while(0) macros *** |
| AC_CACHE_CHECK([for working do while(0) macros], _cv_g_support_dowhile_macros, [ |
| AC_TRY_COMPILE([],[ |
| #define STMT_START do |
| #define STMT_END while(0) |
| #define STMT_TEST STMT_START { i = 0; } STMT_END |
| int main(void) { int i = 1; STMT_TEST; return i; }], |
| [_cv_g_support_dowhile_macros=yes], |
| [_cv_g_support_dowhile_macros=no], |
| [_cv_g_support_dowhile_macros=yes]) |
| ]) |
| if test x$_cv_g_support_dowhile_macros = xyes; then |
| AC_DEFINE(HAVE_DOWHILE_MACROS, 1, [define for working do while(0) macros]) |
| fi |
| ]) |
