dnl check for vsnprintf() -- a safe version of vsprintf())
dnl
-dnl the trouble here is that on some systems (notable HP-UX) this function is
+dnl the trouble here is that on some systems (e.g HP-UX 10) this function is
dnl present in libc but not in the system headers and so AC_CHECK_FUNCS (which,
dnl stupidly, provides a dummy function declaration inside its extension)
dnl succeeds, even with C++ compiler, but the compilation of wxWidgets fails
dnl yes it is -- now check if it is in the headers
AC_CACHE_CHECK([for vsnprintf declaration], wx_cv_func_vsnprintf_decl,
[
+ dnl our troubles are not over: HP-UX 11 prototypes vsnprintf() as
+ dnl taking "char *" and not "const char *" while Metrowerks does
+ dnl provide a correct vsnprintf declaration but in C++ mode it's
+ dnl always in std namespace and so we have to bring it in scope
AC_TRY_COMPILE(
[
#include <stdio.h>
#include <stdarg.h>
+ #ifdef __MSL__
+ #if __MSL__ >= 0x6000
+ namespace std {}
+ using namespace std;
+ #endif
+ #endif
],
[
char *buf;
va_list ap;
- vsnprintf(buf, 10u, "%s", ap);
+ const char *fmt = "%s";
+ vsnprintf(buf, 10u, fmt, ap);
],
wx_cv_func_vsnprintf_decl=yes,
- [
- dnl Metrowerks does provide a vsnprintf declaration
- dnl but in C++ mode it's always in std namespace.
- dnl FIXME: Do we have any UNIX C++ compilers that would
- dnl fail this test if using namespace std; was
- dnl simply always included?
- AC_TRY_COMPILE(
- [
- #include <stdio.h>
- #include <stdarg.h>
- using namespace std;
- ],
- [
- char *buf;
- va_list ap;
- vsnprintf(buf, 10u, "%s", ap);
- ],
- wx_cv_func_vsnprintf_decl=yes,
- wx_cv_func_vsnprintf_decl=no
- )
- ]
+ wx_cv_func_vsnprintf_decl=no
)
]
)
THREAD_OPTS="pthreads"
;;
*-hp-hpux* )
- dnl HP-UX aCC only gives a warning, not an error about
- dnl -pthread but it doesn't work and we have to use -lpthread
- dnl there
- if test "x$GCC" != "xyes"; then
+ if test "x$GCC" = "xyes"; then
+ dnl the correct option for gcc is -threads, at least under
+ dnl HP-UX 11.00
+ THREAD_OPTS="-threads"
+ fi
+ dnl HP-UX aCC only gives a warning, not an error about
+ dnl -pthread but it doesn't work and we have to use
+ dnl -lpthread there
THREAD_OPTS=""
fi
;;