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2012-09-12 Teresa Johnson <tejohnson@google.com>
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PR gcov-profile/54487
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* configure.ac (HOST_HAS_F_SETLKW): Set based on compile
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test using F_SETLKW with fcntl.
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* configure, config.in: Regenerate.
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--- gcc/configure.ac (revision 191237)
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+++ gcc/configure.ac (revision 191238)
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@@ -1146,6 +1146,22 @@ if test $gcc_cv_type_clock_t = yes; then
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[Define if <time.h> defines clock_t.])
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fi
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+# Check if F_SETLKW is supported by fcntl.
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+AC_CACHE_CHECK(for F_SETLKW, ac_cv_f_setlkw, [
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+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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+#include <fcntl.h>]], [[
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+struct flock fl;
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+fl.l_whence = 0;
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+fl.l_start = 0;
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+fl.l_len = 0;
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+fl.l_pid = 0;
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+return fcntl (1, F_SETLKW, &fl);]])],
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+[ac_cv_f_setlkw=yes],[ac_cv_f_setlkw=no])])
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+if test $ac_cv_f_setlkw = yes; then
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+ AC_DEFINE(HOST_HAS_F_SETLKW, 1,
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+ [Define if F_SETLKW supported by fcntl.])
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+fi
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+
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# Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
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CFLAGS="$saved_CFLAGS"
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--- gcc/configure (revision 191237)
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+++ gcc/configure (revision 191238)
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@@ -13271,6 +13271,76 @@ _ACEOF
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fi
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+# Check if F_SETLKW is supported by fcntl.
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+echo "$as_me:$LINENO: checking for F_SETLKW" >&5
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+echo $ECHO_N "checking for F_SETLKW... $ECHO_C" >&6
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+if test "${ac_cv_f_setlkw+set}" = set; then
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+ echo $ECHO_N "(cached) $ECHO_C" >&6
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+else
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+
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+cat >conftest.$ac_ext <<_ACEOF
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+/* confdefs.h. */
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+_ACEOF
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+cat confdefs.h >>conftest.$ac_ext
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+cat >>conftest.$ac_ext <<_ACEOF
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+/* end confdefs.h. */
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+
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+#include <fcntl.h>
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+int
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+main ()
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+{
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+
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+struct flock fl;
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+fl.l_whence = 0;
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+fl.l_start = 0;
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+fl.l_len = 0;
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+fl.l_pid = 0;
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+return fcntl (1, F_SETLKW, &fl);
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+ ;
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+ return 0;
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+}
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+_ACEOF
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+rm -f conftest.$ac_objext
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+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
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+ (eval $ac_compile) 2>conftest.er1
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+ ac_status=$?
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+ grep -v '^ *+' conftest.er1 >conftest.err
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+ rm -f conftest.er1
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+ cat conftest.err >&5
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+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
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+ (exit $ac_status); } &&
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+ { ac_try='test -z "$ac_c_werror_flag"
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+ || test ! -s conftest.err'
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+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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+ (eval $ac_try) 2>&5
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+ ac_status=$?
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+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
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+ (exit $ac_status); }; } &&
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+ { ac_try='test -s conftest.$ac_objext'
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+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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+ (eval $ac_try) 2>&5
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+ ac_status=$?
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+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
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+ (exit $ac_status); }; }; then
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+ ac_cv_f_setlkw=yes
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+else
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+ echo "$as_me: failed program was:" >&5
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+sed 's/^/| /' conftest.$ac_ext >&5
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+
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+ac_cv_f_setlkw=no
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+fi
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+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
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+fi
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+echo "$as_me:$LINENO: result: $ac_cv_f_setlkw" >&5
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+echo "${ECHO_T}$ac_cv_f_setlkw" >&6
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+if test $ac_cv_f_setlkw = yes; then
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+
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+cat >>confdefs.h <<\_ACEOF
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+#define HOST_HAS_F_SETLKW 1
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+_ACEOF
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+
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+fi
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+
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# Restore CFLAGS from before the gcc_AC_NEED_DECLARATIONS tests.
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CFLAGS="$saved_CFLAGS"
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--- gcc/config.in (revision 191237)
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+++ gcc/config.in (revision 191238)
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@@ -1398,6 +1398,12 @@
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#endif
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+/* Define if F_SETLKW supported by fcntl. */
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+#ifndef USED_FOR_TARGET
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+#undef HOST_HAS_F_SETLKW
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+#endif
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+
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+
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/* Define as const if the declaration of iconv() needs const. */
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#ifndef USED_FOR_TARGET
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#undef ICONV_CONST
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