libgfortran: Provide some further math library fallbacks [PR94694]

[thirdparty/gcc.git] / libgfortran / configure.ac

diff --git a/libgfortran/configure.ac b/libgfortran/configure.ac
index b2b9ee994aa7ab5b69c8fcb7eb4ab118069b87bf..711dc60ff78e97c13b3b86db69e2aa2b2d290b76 100644 (file)
--- a/libgfortran/configure.ac
+++ b/libgfortran/configure.ac
@@ -392,6 +392,9 @@ GCC_CHECK_MATH_FUNC([cabsl])
 GCC_CHECK_MATH_FUNC([floorf])
 GCC_CHECK_MATH_FUNC([floor])
 GCC_CHECK_MATH_FUNC([floorl])
+GCC_CHECK_MATH_FUNC([fmaf])
+GCC_CHECK_MATH_FUNC([fma])
+GCC_CHECK_MATH_FUNC([fmal])
 GCC_CHECK_MATH_FUNC([fmodf])
 GCC_CHECK_MATH_FUNC([fmod])
 GCC_CHECK_MATH_FUNC([fmodl])
@@ -516,6 +519,11 @@ GCC_CHECK_MATH_FUNC([catanl])
 # On AIX, clog is present in libm as __clog
 AC_CHECK_LIB([m],[__clog],[AC_DEFINE([HAVE_CLOG],[1],[libm includes clog])])
 
+GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2([copysign], [double])
+GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK2([copysignl], [long double])
+GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1([fabs], [double])
+GCC_CHECK_MATH_INLINE_BUILTIN_FALLBACK1([fabsl], [long double])
+
 # Check whether the system has a working stat()
 LIBGFOR_CHECK_WORKING_STAT