diff options
Diffstat (limited to 'libgfortran/configure')
| -rwxr-xr-x | libgfortran/configure | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/libgfortran/configure b/libgfortran/configure index a76360d65ab..6799fa52772 100755 --- a/libgfortran/configure +++ b/libgfortran/configure @@ -20699,6 +20699,166 @@ _ACEOF fi +# Check out sync builtins support. + + echo "$as_me:$LINENO: checking whether the target supports __sync_fetch_and_add" >&5 +echo $ECHO_N "checking whether the target supports __sync_fetch_and_add... $ECHO_C" >&6 +if test "${have_sync_fetch_and_add+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + + if test x$gcc_no_link = xyes; then + { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5 +echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;} + { (exit 1); exit 1; }; } +fi +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +int foovar = 0; +int +main () +{ + +if (foovar <= 0) return __sync_fetch_and_add (&foovar, 1); +if (foovar > 10) return __sync_add_and_fetch (&foovar, -1); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + have_sync_fetch_and_add=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +have_sync_fetch_and_add=no +fi +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $have_sync_fetch_and_add" >&5 +echo "${ECHO_T}$have_sync_fetch_and_add" >&6 + if test $have_sync_fetch_and_add = yes; then + +cat >>confdefs.h <<\_ACEOF +#define HAVE_SYNC_FETCH_AND_ADD 1 +_ACEOF + + fi + +# Check out thread support. + + echo "$as_me:$LINENO: checking configured target thread model" >&5 +echo $ECHO_N "checking configured target thread model... $ECHO_C" >&6 +if test "${target_thread_file+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + +target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'` +fi +echo "$as_me:$LINENO: result: $target_thread_file" >&5 +echo "${ECHO_T}$target_thread_file" >&6 + + if test $target_thread_file != single; then + +cat >>confdefs.h <<\_ACEOF +#define HAVE_GTHR_DEFAULT 1 +_ACEOF + + fi + +# Check out #pragma weak. + + echo "$as_me:$LINENO: checking whether pragma weak works" >&5 +echo $ECHO_N "checking whether pragma weak works... $ECHO_C" >&6 +if test "${have_pragma_weak+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + + gfor_save_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Wunknown-pragmas" + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +void foo (void); +#pragma weak foo +int +main () +{ +if (foo) foo (); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" + || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + have_pragma_weak=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +have_pragma_weak=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $have_pragma_weak" >&5 +echo "${ECHO_T}$have_pragma_weak" >&6 + if test $have_pragma_weak = yes; then + +cat >>confdefs.h <<\_ACEOF +#define HAVE_PRAGMA_WEAK 1 +_ACEOF + + fi + # Various other checks on target echo "$as_me:$LINENO: checking whether the target can unlink an open file" >&5 |