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| author | Mattias Engdegård <mattiase@acm.org> | 2019-08-29 12:29:47 +0200 |
|---|---|---|
| committer | Mattias Engdegård <mattiase@acm.org> | 2019-08-30 15:08:24 +0200 |
| commit | 4a919b1bbc00c8084aea2a4e8196d2b38e657946 (patch) | |
| tree | 84a76f3567971de084554c2d55fceea12b0116b5 /src/floatfns.c | |
| parent | d09a1d66c608e9e993ce73515cf83f785d04e407 (diff) | |
| download | emacs-4a919b1bbc00c8084aea2a4e8196d2b38e657946.tar.gz | |
* src/floatfns.c: Check against __FINITE_MATH_ONLY__ (bug#37140)
Diffstat (limited to 'src/floatfns.c')
| -rw-r--r-- | src/floatfns.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/floatfns.c b/src/floatfns.c index 0a85df47dec..49068bee770 100644 --- a/src/floatfns.c +++ b/src/floatfns.c @@ -48,6 +48,14 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */ #include <count-leading-zeros.h> +/* Emacs needs proper handling of ±inf; correct printing as well as + important packages depend on it. Make sure the user didn't specify + -ffinite-math-only, either directly or implicitly with -Ofast or + -ffast-math. */ +#if defined __FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ + #error Emacs cannot be built with -ffinite-math-only +#endif + /* Check that X is a floating point number. */ static void |