m4m/failmalloc.m4

   1 dnl Search for libfailmalloc to use for testing
   2 AC_DEFUN([CHECK_FAILMALLOC],[dnl
   3   dnl Libtool sets the default library paths
   4   AM_PROG_LIBTOOL
   5   path_provided=
   6   failmalloc_requested=  dnl Either implicitly or explicitly
   7   AC_ARG_WITH(failmalloc, [  --with-failmalloc=PATH  use Failmalloc for tests], [
   8       failmalloc_requested=1
   9       if test x"$withval" = "x" -o x"$withval" = x"yes"; then
  10         failmalloc_search_path="$sys_lib_search_path_spec"
  11       elif test x"$withval" = x"no"; then
  12         failmalloc_search_path=""
  13         failmalloc_requested=
  14       else
  15         failmalloc_search_path="$withval"
  16         path_provided=1
  17       fi
  18     ], [failmalloc_search_path="$sys_lib_search_path_spec"]
  19   )
  20   libfailmalloc_file=libfailmalloc.so.0
  21   FAILMALLOC_PATH=
  22
  23   dnl Skip the check if we're cross-compiling, unless the user explicitly requested it
  24   if test x"$cross_compiling" = x"no" -o x"$failmalloc_requested" = x"1"; then
  25     dnl Check if the argument is a directory
  26     for d in $failmalloc_search_path; do
  27         AC_CHECK_FILE([$d/$libfailmalloc_file], [
  28           FAILMALLOC_PATH="$d/$libfailmalloc_file"
  29           break
  30         ], [])
  31     done
  32     if test -z "$FAILMALLOC_PATH" -a -n "$path_provided"; then
  33       dnl Check if the argument is a file
  34       AC_CHECK_FILE([$failmalloc_search_path], [FAILMALLOC_PATH="$failmalloc_search_path"], [])
  35     fi
  36   fi
  37
  38   AC_MSG_CHECKING([for failmalloc])
  39   dnl Make sure AC_CHECK_FILE didn't find a directory by mistake
  40   if test -n "$FAILMALLOC_PATH" -a -f "$FAILMALLOC_PATH"; then
  41     AC_MSG_RESULT([yes])
  42   else
  43     if test -n "$path_provided"; then
  44       AC_MSG_ERROR([$libfailmalloc_file was not found at $failmalloc_search_path])
  45     else
  46       if test x"$cross_compiling" != x"no"; then
  47         AC_MSG_RESULT([no (cross compiling)])
  48       else
  49         AC_MSG_RESULT([no])
  50       fi
  51     fi
  52   fi
  53   AC_SUBST(FAILMALLOC_PATH)
  54   AM_CONDITIONAL(USE_FAILMALLOC, [test x"$FAILMALLOC_PATH" != x])
  55 ])
  56