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* configure.ac: Check for (struct stat)::st_mtim

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* fileread.cc (File_read::get_mtime): Use st_mtim if available.
	* config.in: Regenerate.
	* configure: Regenerate.
This commit is contained in:
Ian Lance Taylor 2009-11-06 15:47:06 +00:00
parent dec397b2de
commit 5d329b7db9
5 changed files with 60 additions and 2 deletions
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7
gold/ChangeLog
View file

@ -1,3 +1,10 @@
2009-11-06 Mikolaj Zalewski <mikolaj@google.com>
* configure.ac: Check for (struct stat)::st_mtim
* fileread.cc (File_read::get_mtime): Use st_mtim if available.
* config.in: Regenerate.
* configure: Regenerate.
2009-11-05 Ian Lance Taylor <iant@google.com>
PR 10910

3
gold/config.in
View file

@ -102,6 +102,9 @@
/* Define to 1 if you have the `readv' function. */
#undef HAVE_READV
/* Define if struct stat has a field st_mtim with timespec for mtime */
#undef HAVE_STAT_ST_MTIM
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H

34
gold/configure vendored
View file

@ -6875,6 +6875,40 @@ $as_echo "#define HAVE_TEMPLATE_ATTRIBUTES 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for struct stat::st_mtim." >&5
$as_echo_n "checking for struct stat::st_mtim.... " >&6; }
if test "${gold_cv_stat_st_mtim+set}" = set; then :
$as_echo_n "(cached) " >&6
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <sys/stat.h>
long bar() { struct stat s; return (long)(s.st_mtim.tv_sec + s.st_mtim.tv_sec);}
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
gold_cv_stat_st_mtim=yes
else
gold_cv_stat_st_mtim=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gold_cv_stat_st_mtim" >&5
$as_echo "$gold_cv_stat_st_mtim" >&6; }
if test "$gold_cv_stat_st_mtim" = "yes"; then
$as_echo "#define HAVE_STAT_ST_MTIM 1" >>confdefs.h
fi
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'

12
gold/configure.ac
View file

@ -370,6 +370,18 @@ if test "$gold_cv_template_attribute" = "yes"; then
[Define if attributes work on C++ templates])
fi
dnl Check if the system has struct stat::st_mtim.
AC_CACHE_CHECK([for struct stat::st_mtim.],
[gold_cv_stat_st_mtim],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/stat.h>
long bar() { struct stat s; return (long)(s.st_mtim.tv_sec + s.st_mtim.tv_sec);}
]])], [gold_cv_stat_st_mtim=yes], [gold_cv_stat_st_mtim=no])])
if test "$gold_cv_stat_st_mtim" = "yes"; then
AC_DEFINE(HAVE_STAT_ST_MTIM, 1,
[Define if struct stat has a field st_mtim with timespec for mtime])
fi
AC_LANG_POP(C++)
AM_MAINTAINER_MODE

6
gold/fileread.cc
View file

@ -823,9 +823,11 @@ File_read::get_mtime()
if (fstat(this->descriptor_, &file_stat) < 0)
gold_fatal(_("%s: stat failed: %s"), this->name_.c_str(),
strerror(errno));
// TODO: do a configure check if st_mtim is present and get the
// nanoseconds part if it is.
#ifdef HAVE_STAT_ST_MTIM
return Timespec(file_stat.st_mtim.tv_sec, file_stat.st_mtim.tv_nsec);
#else
return Timespec(file_stat.st_mtime, 0);
#endif
}
// Open the file.