FreeBSD 3 multithreading final fix. Do not use libc_r, libc is just as

reentrant concerning errno. Revert unneeded FreeBSD hack to
loader/signal.c from last patch.

configure.in

@@ -91,8 +91,6 @@ then
 fi
 dnl Check for -lxpg4 for FreeBSD
 AC_CHECK_LIB(xpg4,setrunelocale)
-dnl Check for -lc_r for FreeBSD
-AC_CHECK_LIB(c_r,__error)
 dnl Check for -ldl
 AC_CHECK_LIB(dl,dlopen)
 AC_SUBST(XLIB)

include/config.h.in

@@ -246,9 +246,6 @@
 /* Define if you have the <wctype.h> header file.  */
 #undef HAVE_WCTYPE_H
 
-/* Define if you have the c_r library (-lc_r).  */
-#undef HAVE_LIBC_R
-
 /* Define if you have the curses library (-lcurses).  */
 #undef HAVE_LIBCURSES
 

loader/signal.c

@@ -45,9 +45,6 @@ void (*ctx_debug_call)(int sig,CONTEXT*ctx)=NULL;
 BOOL (*fnINSTR_EmulateInstruction)(SIGCONTEXT*ctx)=NULL;
 
 
-#define SIGACTION sigaction
-#define SIGALTSTACK sigaltstack
-
 #ifdef __i386__
 
 /* i386 specific faults */
@@ -118,19 +115,8 @@ static __inline__ int wine_sigaction( int sig, struct kernel_sigaction *new,
     errno = -sig;
     return -1;
 }
-#undef SIGACTION
-#define SIGACTION wine_sigaction
 #endif /* linux && __i386__ */
 
-#ifdef __FreeBSD__
-#undef SIGACTION
-#define SIGACTION _thread_sys_sigaction
-extern int _thread_sys_sigaction(int sig,const struct sigaction*act,struct sigaction* oact);
-#undef SIGALTSTACK
-#define SIGALTSTACK _thread_sys_sigaltstack
-extern int _thread_sys_sigaltstack(const struct sigaltstack *ss,struct sigaltstack *oss);
-#endif
-
 /* Signal stack */
 
 static char SIGNAL_Stack[16384];
@@ -189,7 +175,7 @@ void SIGNAL_SetHandler( int sig, void (*func)(), int flags )
 # else
     sig_act.sa_flags = 0;
 # endif
-    ret = SIGACTION( sig, &sig_act, NULL );
+    ret = sigaction( sig, &sig_act, NULL );
 
 #endif  /* linux && __i386__ */
 
@@ -315,7 +301,7 @@ BOOL SIGNAL_Init(void)
     ss.ss_sp    = SIGNAL_Stack;
     ss.ss_size  = sizeof(SIGNAL_Stack);
     ss.ss_flags = 0;
-    if (SIGALTSTACK(&ss, NULL) < 0)
+    if (sigaltstack(&ss, NULL) < 0)
     {
         perror("sigaltstack");
         return FALSE;