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| author | Tobias Burnus <burnus@net-b.de> | 2011-02-15 22:30:43 +0100 |
|---|---|---|
| committer | Tobias Burnus <burnus@gcc.gnu.org> | 2011-02-15 22:30:43 +0100 |
| commit | 69eb61d47a9c6dae5308134ee809d85882fbeb10 (patch) | |
| tree | ea8ca213cedb7992d8e77abb99f171de9ede42aa /libgfortran/acinclude.m4 | |
| parent | fc2fa4fb3848f15a1f69843151214033f45edc07 (diff) | |
| download | gcc-69eb61d47a9c6dae5308134ee809d85882fbeb10.zip gcc-69eb61d47a9c6dae5308134ee809d85882fbeb10.tar.gz gcc-69eb61d47a9c6dae5308134ee809d85882fbeb10.tar.bz2 | |
re PR libfortran/47716 (libgfortran quadmath_weak.h not found on NetBSD 5.1)
2011-02-15 Tobias Burnus <burnus@net-b.de>
PR fortran/47716
PR fortran/47648
* acinclude.m4 (LIBGFOR_CHECK_FLOAT128): Use check from
libquadmath, which uses more features.
* configure: Regenerate.
From-SVN: r170200
Diffstat (limited to 'libgfortran/acinclude.m4')
| -rw-r--r-- | libgfortran/acinclude.m4 | 45 |
1 files changed, 27 insertions, 18 deletions
diff --git a/libgfortran/acinclude.m4 b/libgfortran/acinclude.m4 index 9873d9f..1bc1c7b 100644 --- a/libgfortran/acinclude.m4 +++ b/libgfortran/acinclude.m4 @@ -284,24 +284,33 @@ AC_DEFUN([LIBGFOR_CHECK_FLOAT128], [ AC_CACHE_CHECK([whether we have a usable __float128 type], libgfor_cv_have_float128, [ - AC_TRY_LINK([ -/* no header */ -],[ - typedef _Complex float __attribute__((mode(TC))) __complex128; - - __float128 x; - x = __builtin_huge_valq() - 2.e1000Q; - - __complex128 z1, z2; - z1 = x; - z2 = 2.Q; - - z1 /= z2; - z1 /= 7.Q; -], - libgfor_cv_have_float128=yes, - libgfor_cv_have_float128=no) - ]) + GCC_TRY_COMPILE_OR_LINK([ + typedef _Complex float __attribute__((mode(TC))) __complex128; + + __float128 foo (__float128 x) + { + + __complex128 z1, z2; + + z1 = x; + z2 = x / 7.Q; + z2 /= z1; + + return (__float128) z2; + } + + __float128 bar (__float128 x) + { + return x * __builtin_huge_valq (); + } + ],[ + foo (1.2Q); + bar (1.2Q); + ],[ + libgfor_cv_have_float128=yes + ],[ + libgfor_cv_have_float128=no +])]) if test "x$libgfor_cv_have_float128" = xyes; then AC_DEFINE(HAVE_FLOAT128, 1, [Define if have a usable __float128 type.]) |