diff options
Diffstat (limited to 'math/math.h')
| -rw-r--r-- | math/math.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/math/math.h b/math/math.h index 0aedaf1d56..ae83262338 100644 --- a/math/math.h +++ b/math/math.h @@ -262,7 +262,7 @@ extern int matherr __P ((struct exception *__exc)); #endif /* SVID */ -#ifdef __USE_BSD +#if defined __USE_BSD || defined __USE_UNIX98 /* Some useful constants. */ # define M_E _Mldbl(2.7182818284590452354) /* e */ @@ -292,7 +292,7 @@ extern int matherr __P ((struct exception *__exc)); Please note we define the macro even if the constants are not defined. This helps us to use the macros in other places. */ -#if __STDC__ - 0 || __GNUC__ - 0 +#if (__STDC__ - 0 || __GNUC__ - 0) && defined __USE_GNU # define _Mldbl(x) x##L #else /* Traditional C. */ # define _Mldbl(x) x |