diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/configure b/configure index 98cb8b28814..910f0fc3736 100755 --- a/configure +++ b/configure @@ -11545,6 +11545,52 @@ _ACEOF ;; esac +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C/C++ restrict keyword" >&5 +$as_echo_n "checking for C/C++ restrict keyword... " >&6; } +if ${ac_cv_c_restrict+:} false; then : + $as_echo_n "(cached) " >&6 +else + ac_cv_c_restrict=no + # The order here caters to the fact that C++ does not require restrict. + for ac_kw in __restrict __restrict__ _Restrict restrict; do + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +typedef int * int_ptr; + int foo (int_ptr $ac_kw ip) { + return ip[0]; + } +int +main () +{ +int s[1]; + int * $ac_kw t = s; + t[0] = 0; + return foo(t) + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_c_restrict=$ac_kw +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + test "$ac_cv_c_restrict" != no && break + done + +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_restrict" >&5 +$as_echo "$ac_cv_c_restrict" >&6; } + + case $ac_cv_c_restrict in + restrict) ;; + no) $as_echo "#define restrict /**/" >>confdefs.h + ;; + *) cat >>confdefs.h <<_ACEOF +#define restrict $ac_cv_c_restrict +_ACEOF + ;; + esac + { $as_echo "$as_me:${as_lineno-$LINENO}: checking for printf format archetype" >&5 $as_echo_n "checking for printf format archetype... " >&6; } if ${pgac_cv_printf_archetype+:} false; then : |