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| author | Sverker Eriksson <[email protected]> | 2018-01-17 16:43:39 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2018-01-19 17:42:56 +0100 |
| commit | bf8c53ca0ab214ee794ba06376300e2da9cb51d2 (patch) | |
| tree | d017b81458be2a69bb36bfb4a9b38134a3d17958 | |
| parent | b02208125f27b20e6ce186afcdc6b79e24ac732a (diff) | |
| download | otp-bf8c53ca0ab214ee794ba06376300e2da9cb51d2.tar.gz otp-bf8c53ca0ab214ee794ba06376300e2da9cb51d2.tar.bz2 otp-bf8c53ca0ab214ee794ba06376300e2da9cb51d2.zip | |
erts: Add ERTS_RESTRICT
| -rw-r--r-- | erts/configure.in | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/erts/configure.in b/erts/configure.in index f15bb56435..9646c0d47d 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -1760,6 +1760,25 @@ if test $ac_cv_sizeof_void_p = 8; then fi AC_SUBST(BITS64) +AC_MSG_CHECKING([for C compiler 'restrict' support]) +restrict_keyword="" +for x in restrict __restrict; do + AC_TRY_COMPILE([int * $x foo(int * $x arg); + int * $x foo(int * $x arg) + { int * $x var=arg; return var;} + ],[], + [restrict_keyword=$x],[]) + if test "x$restrict_keyword" != "x"; then + break + fi +done +AC_DEFINE_UNQUOTED(ERTS_RESTRICT,[$restrict_keyword],[Type qualifier restrict]) +if test "x$restrict_keyword" != "x"; then + AC_MSG_RESULT(yes) +else + AC_MSG_RESULT(no) +fi + if test "x$ac_compiler_gnu" = "xyes"; then AC_MSG_CHECKING([if we should add -fno-tree-copyrename to CFLAGS for computed gotos to work properly]) AC_TRY_COMPILE([],[ @@ -1779,8 +1798,6 @@ else AC_MSG_RESULT(no) fi - - AC_MSG_CHECKING([for broken gcc-4.3.0 compiler]) AC_TRY_RUN([ /* pr36339.c */ |