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| author | Björn Gustavsson <[email protected]> | 2016-03-15 08:31:27 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2016-03-16 11:58:17 +0100 |
| commit | 395fbd8d02cb314b8ae57b9c02b4293037ca6890 (patch) | |
| tree | d532c2b5313fe3598ba0ea1cd3fb6b526e324bc7 /erts/configure.in | |
| parent | b0421f3d267a99da21466050fd5715b7869f38c6 (diff) | |
| download | otp-395fbd8d02cb314b8ae57b9c02b4293037ca6890.tar.gz otp-395fbd8d02cb314b8ae57b9c02b4293037ca6890.tar.bz2 otp-395fbd8d02cb314b8ae57b9c02b4293037ca6890.zip | |
Take out (parts of) broken fp exception support for MacOS X
Floating-point exception support on MacOS X has never been especially
reliable, and has therefore been disabled by default for a long time.
The fpe support is now broken.
Therefore, take out the unnecessary test for modern mcontext in
configure (whatever that means) and the associated code in sys_float.c.
Add #error directives to sys_float.c to make it clear that
fpe is not supported.
It seems to risky to mess with the mess of #ifdef's, so we will
not attempt to remove all fpe support code for MacOS X.
Diffstat (limited to 'erts/configure.in')
| -rw-r--r-- | erts/configure.in | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/erts/configure.in b/erts/configure.in index 854bdbdc15..cae3843465 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -2807,44 +2807,6 @@ if test "$cross_compiling" != "yes" && test X${enable_hipe} != Xno; then fi fi -case $ARCH-$OPSYS in - amd64-darwin*|x86-darwin*) - AC_MSG_CHECKING([For modern (leopard) style mcontext_t]) - AC_TRY_COMPILE([ - #include <stdlib.h> - #include <sys/types.h> - #include <unistd.h> - #include <mach/mach.h> - #include <pthread.h> - #include <machine/signal.h> - #include <ucontext.h> - ],[ - #if defined(__APPLE__) && defined(__MACH__) && !defined(__DARWIN__) - #define __DARWIN__ 1 - #endif - - #ifndef __DARWIN__ - #error inpossible - #else - - mcontext_t mc = NULL; - int x = mc->__fs.__fpu_mxcsr; - - #endif - ],darwin_mcontext_leopard=yes, - darwin_mcontext_leopard=no) - if test X"$darwin_mcontext_leopard" = X"yes"; then - AC_DEFINE(DARWIN_MODERN_MCONTEXT,[],[Modern style mcontext_t in MacOSX]) - AC_MSG_RESULT(yes) - else - AC_MSG_RESULT(no) - fi - ;; - *) - darwin_mcontext_leopard=no - ;; -esac - if test X${enable_fp_exceptions} = Xauto ; then case $host_os in *linux*) |