configure.ac

测试内存泄露工具

[ AC_DEFINE(SIGNAL_OKAY, 0) AC_MSG_RESULT([no]) ]
)

#
# check the safety of the getenv function
#
AC_CHECK_FUNCS(getenv)
AC_MSG_CHECKING([getenv safe])
AC_RUN_IFELSE([[
static char heap_mem[102400], *heap_p = heap_mem;
free (char *pnt) {
}
char *malloc (int size) {
  char *pnt;
  getenv("PATH");
  pnt = heap_p;
  heap_p += size;
  return pnt;
}
char *calloc (int number, int size) {
  char *start, *pnt, *end;
  getenv("PATH");
  /* it should be already 0s */
  start = malloc (number * size);
  pnt = start;
  end = start + size;
  while (pnt < end) { *pnt++ = '\0'; }
  return start;
}
char *realloc (char *old_pnt, int new_size) {
  char *start, *pnt, *end;
  getenv("PATH");
  start = malloc (new_size);
  pnt = start;
  end = start + new_size;
  while (pnt < end) { *pnt++ = *old_pnt++; }
  return start;
}
main() { malloc(10); _exit(0); }
]],
[ AC_DEFINE(GETENV_SAFE, 1)
  AC_MSG_RESULT([yes])
  getenv_safe=yes ],
# if it succeeds then something called free on the way out
[ AC_DEFINE(GETENV_SAFE, 0)
  AC_MSG_RESULT([no])
  getenv_safe=no ],
[ AC_DEFINE(GETENV_SAFE, 1)
  AC_MSG_RESULT([yes])
  getenv_safe=yes ]
)

# now check to see if we can replace getenv with GetEnvironmentVariableA
AC_CHECK_HEADER([sys/cygwin.h],
		[AC_DEFINE(HAVE_SYS_CYGWIN_H,1) AC_SUBST([HAVE_SYS_CYGWIN_H],1)],
		[AC_DEFINE(HAVE_SYS_CYGWIN_H,0) AC_SUBST([HAVE_SYS_CYGWIN_H],0)])
AC_CHECK_HEADER([w32api/windef.h],
		[AC_DEFINE(HAVE_W32API_WINDEF_H,1) AC_SUBST([HAVE_W32API_WINDEF_H],1)],
		[AC_DEFINE(HAVE_W32API_WINDEF_H,0) AC_SUBST([HAVE_W32API_WINDEF_H],0)])
AC_CHECK_HEADER([w32api/winbase.h],
		[AC_DEFINE(HAVE_W32API_WINBASE_H,1) AC_SUBST([HAVE_W32API_WINBASE_H],1)],
		[AC_DEFINE(HAVE_W32API_WINBASE_H,0) AC_SUBST([HAVE_W32API_WINBASE_H],0)],
		[[
#if HAVE_W32API_WINDEF_H
# include <w32api/windef.h>
#endif]])
AC_MSG_CHECKING([for GetEnvironmentVariableA])
AC_RUN_IFELSE([[
#if HAVE_SYS_CYGWIN_H
# include <sys/cygwin.h>
#endif
#if HAVE_STDARG_H
# include <stdarg.h>
#endif
#if HAVE_W32API_WINDEF_H
# include <w32api/windef.h>
#endif
#if HAVE_W32API_WINBASE_H
# include <w32api/winbase.h>
#endif
main() {
  char env_buf[256];
  GetEnvironmentVariableA("PATH", env_buf, sizeof(env_buf));
}
]],
[ AC_DEFINE(HAVE_GETENVIRONMENTVARIABLEA, 1)
  AC_MSG_RESULT([yes])
  have_getenvironmentvariablea=yes ],
[ AC_DEFINE(HAVE_GETENVIRONMENTVARIABLEA, 0)
  AC_MSG_RESULT([no])
  have_getenvironmentvariablea=no ],
[ AC_DEFINE(HAVE_GETENVIRONMENTVARIABLEA, 1)
  AC_MSG_RESULT([yes])
  have_getenvironmentvariablea=yes ]
)

if test x$getenv_safe != xyes && x$have_getenvironmentvariablea != xyes ; then
  AC_MSG_WARN([Since getenv is not safe, you MUST add the following])
  AC_MSG_WARN([code to the front of main():])
  AC_MSG_WARN([[  #ifdef DMALLOC]])
  AC_MSG_WARN([[    dmalloc_debug_setup(getenv("DMALLOC_OPTIONS"));]])
  AC_MSG_WARN([[  #endif]])
  AC_MSG_WARN([You will need to compile your program with: -DDMALLOC])
fi

############

#
# check for constructor attribute support
#
AC_MSG_CHECKING([constructor attribute])
AC_RUN_IFELSE([[
/* if we call the loc_con constructor then exit with error code 0 */
static void loc_con() __attribute__((constructor));
static void loc_con() { exit(0); }
int main() { exit(1); }
]],
[ AC_DEFINE(CONSTRUCTOR_WORKS, 1) AC_MSG_RESULT([yes]) ],
[ AC_DEFINE(CONSTRUCTOR_WORKS, 0) AC_MSG_RESULT([no]) ],
[ AC_DEFINE(CONSTRUCTOR_WORKS, 1) AC_MSG_RESULT([yes]) ]
)

#
# check for destructor attribute support
#
AC_MSG_CHECKING([destructor attribute])
AC_RUN_IFELSE([[
/* if we call the loc_decon destructor then exit with error code 0 */
static void loc_decon() __attribute__((destructor));
static void loc_decon() { exit(0); }
int main() { return 1; }
]],
[ AC_DEFINE(DESTRUCTOR_WORKS, 1)
  AC_MSG_RESULT([yes])
  destructor_works=yes ],
[ AC_DEFINE(DESTRUCTOR_WORKS, 0)
  AC_MSG_RESULT([no])
  destructor_works=no ],
[ AC_DEFINE(DESTRUCTOR_WORKS, 1)
  AC_MSG_RESULT([yes])
  destructor_works=yes ],
)

##############################################################################

#
# check if the return.h macros work
#
AC_MSG_CHECKING([return.h macros work])
AC_RUN_IFELSE([

#define __CONF_H__
#define USE_RETURN_MACROS 1
#define RETURN_MACROS_WORK 1

#include "return.h"

static void foo (void)
{
  char	*ret_addr;
  GET_RET_ADDR(ret_addr);
}

main()
{
  foo();
  exit(0);
}
],
[ AC_DEFINE(RETURN_MACROS_WORK, 1) AC_MSG_RESULT([yes]) ],
[ AC_DEFINE(RETURN_MACROS_WORK, 0) AC_MSG_RESULT([no]) ],
[ AC_DEFINE(RETURN_MACROS_WORK, 0) AC_MSG_RESULT([no]) ]
)

##############################################################################

#
# check to see if ident workds
#
AC_MSG_CHECKING([if ident works])
AC_COMPILE_IFELSE([
#ident "$Id: configure.ac,v 1.29 2004/10/19 14:50:52 gray Exp $"
static void foo (void) { }
],
[AC_DEFINE(IDENT_WORKS, 1) AC_MSG_RESULT([yes])],
[AC_DEFINE(IDENT_WORKS, 0) AC_MSG_RESULT([no])]
)

##############################################################################
AC_MSG_NOTICE([pthread particulars])

XX_OLD_LIBS=$LIBS

AC_SEARCH_LIBS(pthread_mutex_init, pthread pthreads c_r)
AC_CHECK_HEADER([pthread.h],
		[AC_DEFINE(HAVE_PTHREAD_H,1) AC_SUBST([HAVE_PTHREAD_H],1)],
		[AC_DEFINE(HAVE_PTHREAD_H,0) AC_SUBST([HAVE_PTHREAD_H],0)])
AC_CHECK_HEADER([pthreads.h],
		[AC_DEFINE(HAVE_PTHREADS_H,1) AC_SUBST([HAVE_PTHREADS_H],1)],
		[AC_DEFINE(HAVE_PTHREADS_H,0) AC_SUBST([HAVE_PTHREADS_H],0)])

AC_CHECK_FUNCS(pthread_mutex_init pthread_mutex_lock pthread_mutex_unlock)

AC_MSG_CHECKING([pthread mutex type])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#if HAVE_PTHREAD_H
#  include <pthread.h>
#endif
#if HAVE_PTHREADS_H
#  include <pthreads.h>
#endif
]],[[
   pthread_mutex_t dmalloc_mutex;
]])],
[AC_DEFINE(THREAD_MUTEX_T,pthread_mutex_t) AC_MSG_RESULT([pthread_mutex_t])],
[AC_MSG_RESULT([unknown])]
)

AC_MSG_CHECKING([pthread attribute initialization])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#if HAVE_PTHREAD_H
#  include <pthread.h>
#endif
#if HAVE_PTHREADS_H
#  include <pthreads.h>
#endif
]], [[
	THREAD_MUTEX_T dmalloc_mutex;
	pthread_mutex_init(&dmalloc_mutex, pthread_mutexattr_default);
]])],
[AC_DEFINE(THREAD_LOCK_INIT_VAL,pthread_mutexattr_default)
 AC_MSG_RESULT([pthread_mutexattr_default])],
[AC_DEFINE(THREAD_LOCK_INIT_VAL,0)
 AC_MSG_RESULT([0])]
)

LIBS=$XX_OLD_LIBS

##############################################################################
AC_MSG_NOTICE([functions])

# auto-shutdown functions
AC_CHECK_FUNCS(atexit on_exit)
if test $ac_cv_func_atexit = no \
   && test $ac_cv_func_on_exit = no \
   && test $destructor_works = no; then
	AC_MSG_WARN()
	AC_MSG_WARN(WARNING: The library cannot automatically shut itself down)
	AC_MSG_WARN(without atexit, on_exit, or destructor support.  You will)
	AC_MSG_WARN(need to call dmalloc_shutdown directly before exit to get)
	AC_MSG_WARN(get the final statistics and unfreed memory information.)
	AC_MSG_WARN()
fi

# other bells and whistles
AC_CHECK_FUNCS(fork gethostname getpid getuid time ctime)
AC_CHECK_FUNCS(vprintf snprintf vsnprintf)
AC_CHECK_FUNCS(recalloc memalign valloc)

# required although we have code for them in compat.c
AC_CHECK_FUNCS(memcmp memcpy memmove memset)
AC_CHECK_FUNCS(strchr strrchr)
AC_CHECK_FUNCS(strlen strcmp strcpy strsep)

##############################################################################
AC_MSG_NOTICE([various functions for argv files])

# NOTE: some duplicated from above
AC_CHECK_FUNCS(atoi atol getenv)
AC_CHECK_FUNCS(strchr strcmp strcpy strlen strncmp strncpy strsep)

##############################################################################
AC_MSG_NOTICE([various functions for argument checking])

# NOTE: some duplicated from above
AC_CHECK_FUNCS(atoi atol)
AC_CHECK_FUNCS(bcmp bcopy bzero)
AC_CHECK_FUNCS([[index]])
AC_CHECK_FUNCS(memccpy memchr memcmp memcpy memmove memset)
AC_CHECK_FUNCS(rindex)
AC_CHECK_FUNCS(strcasecmp strcat strchr strcmp strcpy strcspn strlen)
AC_CHECK_FUNCS(strncasecmp strncat strncmp strncpy)
AC_CHECK_FUNCS(strpbrk strrchr strspn strstr strtok)

AC_CONFIG_FILES(Makefile)

AC_CONFIG_COMMANDS([dmalloc.h.2],
[
newfile=dmalloc.h.2
rm -f $newfile.t
echo '/* this is dmalloc.h.2 */' > $newfile.t
echo '/* produced by configure, inserted into dmalloc.h */' >> $newfile.t
echo '' >> $newfile.t

if test "$ac_cv_c_const" = "yes"; then
	echo '/* const is available */' >> $newfile.t
else
        echo '/* const is not available */' >> $newfile.t
	echo '#ifndef const' >> $newfile.t
	echo '#define const' >> $newfile.t
	echo '#endif' >> $newfile.t
fi

if test "$ac_cv_strdup_macro" = "yes"; then
	echo '/* strdup is a macro */' >> $newfile.t
	echo '#define DMALLOC_STRDUP_MACRO' >> $newfile.t
else
	echo '/* strdup is not a macro */' >> $newfile.t
	echo '#undef DMALLOC_STRDUP_MACRO' >> $newfile.t
fi
echo '' >> $newfile.t

echo '/*' >> $newfile.t
echo ' * the definition of DMALLOC_SIZE' >> $newfile.t
echo ' *' >> $newfile.t
echo ' * NOTE: some architectures have malloc, realloc, etc.' >> $newfile.t
echo ' * using unsigned instead of unsigned long.  You may' >> $newfile.t
echo ' * have to edit this by hand to fix any compilation' >> $newfile.t
echo ' * warnings or errors.' >> $newfile.t
echo ' */' >> $newfile.t
if test "$ac_cv_type_size_t" = "yes"; then
	echo "#include <sys/types.h>" >> $newfile.t
	echo "#define DMALLOC_SIZE size_t" >> $newfile.t
else
	echo "/* no include file needed */" >> $newfile.t
	echo "#define DMALLOC_SIZE unsigned long" >> $newfile.t
fi
echo '' >> $newfile.t
echo '/*' >> $newfile.t
echo ' * We use stdarg.h for the dmalloc_message and' >> $newfile.t
echo ' * dmalloc_vmessage functions.' >> $newfile.t
echo ' */' >> $newfile.t
if test "$ac_cv_header_stdarg_h" = "yes"; then
	echo "#include <stdarg.h>" >> $newfile.t
	echo "#define DMALLOC_STDARG 1" >> $newfile.t
else
	echo "/* no stdarg.h available */" >> $newfile.t
	echo "#define DMALLOC_STDARG 0" >> $newfile.t
fi
echo '' >> $newfile.t
if cmp -s $newfile $newfile.t 2>/dev/null; then
	AC_MSG_NOTICE([$newfile is unchanged])
	rm -f $newfile.t
else
	rm -f $newfile
	mv $newfile.t $newfile
fi
],
[
# initialization commands
ac_cv_c_const=$ac_cv_c_const
ac_cv_strdup_macro=$ac_cv_strdup_macro
ac_cv_type_size_t=$ac_cv_type_size_t
ac_cv_header_stdarg_h=$ac_cv_header_stdarg_h
])

AC_CONFIG_COMMANDS([settings.h],
[
newfile=settings.h
rm -f $newfile.t
echo '/*' > $newfile.t
echo ' * WARNING: this file was produced from settings.dist' >> $newfile.t
echo ' * by the configure program.  The configure script, when' >> $newfile.t
echo ' * run again, will overwrite changed made here.' >> $newfile.t
echo ' */' >> $newfile.t
echo '' >> $newfile.t
cat $srcdir/settings.dist >> $newfile.t

if cmp -s $newfile.t $newfile 2>/dev/null; then
	AC_MSG_NOTICE([$newfile is unchanged])
	rm -f $newfile.t
else
	rm -f $newfile
	mv $newfile.t $newfile
fi
])
AC_OUTPUT

AC_MSG_NOTICE([])
AC_MSG_NOTICE([Please check-out Makefile and conf.h to make sure that])
AC_MSG_NOTICE([sane configuration values were a result.])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([You may want to change values in settings.h before])
AC_MSG_NOTICE([running 'make'.])
AC_MSG_NOTICE([])
AC_MSG_NOTICE([To run the basic library tests, you can execute:])
AC_MSG_NOTICE([  make light])
AC_MSG_NOTICE([or])
AC_MSG_NOTICE([  make heavy])
AC_MSG_NOTICE([])