diff options
Diffstat (limited to 'configure.in')
-rw-r--r-- | configure.in | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/configure.in b/configure.in index 3454d3ae82..57f767c5f1 100644 --- a/configure.in +++ b/configure.in @@ -2516,8 +2516,11 @@ int main(int argc, char **argv) { int sign; + double x = lgamma_r(-0.0, &sign); - if (lgamma_r(-0.0, &sign) >= 0) return EXIT_FAILURE; + /* should be [+inf, -1] */ + if (x <= 0) return EXIT_FAILURE; + if (!isinf(x)) return EXIT_FAILURE; if (sign != -1) return EXIT_FAILURE; return EXIT_SUCCESS; } |