Remove core.sys.freebsd.execinfo from RT_FREEBSD_OBJS

Author: ibuclaw

libphobos/libdruntime/Makefile.am

@@ -91,7 +91,7 @@ RT_STDC_OBJS=core/stdc/config.o core/stdc/ctype.o core/stdc/errno.o \
 
 RT_LINUX_OBJS=
 
-RT_FREEBSD_OBJS=core/sys/freebsd/execinfo.o core/sys/freebsd/sys/event.o
+RT_FREEBSD_OBJS=core/sys/freebsd/sys/event.o
 
 RT_OSX_OBJS=core/sys/osx/mach/kern_return.o core/sys/osx/mach/port.o \
 	    core/sys/osx/mach/semaphore.o core/sys/osx/mach/thread_act.o \

libphobos/libdruntime/Makefile.in

@@ -258,7 +258,7 @@ RT_STDC_OBJS = core/stdc/config.o core/stdc/ctype.o core/stdc/errno.o \
 	     core/stdc/time.o core/stdc/wchar_.o
 
 RT_LINUX_OBJS = 
-RT_FREEBSD_OBJS = core/sys/freebsd/execinfo.o core/sys/freebsd/sys/event.o
+RT_FREEBSD_OBJS = core/sys/freebsd/sys/event.o
 RT_OSX_OBJS = core/sys/osx/mach/kern_return.o core/sys/osx/mach/port.o \
 	    core/sys/osx/mach/semaphore.o core/sys/osx/mach/thread_act.o \
 	    core/sys/osx/pthread.o

libphobos/libdruntime/core/sys/freebsd/execinfo.d

@@ -8,6 +8,9 @@
  */
 module core.sys.freebsd.execinfo;
 
+version (GNU) {} // use gcc.backtrace
+else:
+
 version (FreeBSD):
 extern (C):
 nothrow: