diff options
Diffstat (limited to 'gnulib-m4/float_h.m4')
-rw-r--r-- | gnulib-m4/float_h.m4 | 87 |
1 files changed, 4 insertions, 83 deletions
diff --git a/gnulib-m4/float_h.m4 b/gnulib-m4/float_h.m4 index e4853f3..a74a0d9 100644 --- a/gnulib-m4/float_h.m4 +++ b/gnulib-m4/float_h.m4 @@ -1,5 +1,5 @@ -# float_h.m4 serial 9 -dnl Copyright (C) 2007, 2009-2015 Free Software Foundation, Inc. +# float_h.m4 serial 3 +dnl Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -9,90 +9,11 @@ AC_DEFUN([gl_FLOAT_H], AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_CANONICAL_HOST]) FLOAT_H= - REPLACE_FLOAT_LDBL=0 case "$host_os" in - aix* | beos* | openbsd* | mirbsd* | irix*) + beos* | openbsd*) FLOAT_H=float.h - ;; - freebsd*) - case "$host_cpu" in -changequote(,)dnl - i[34567]86 ) -changequote([,])dnl - FLOAT_H=float.h - ;; - x86_64 ) - # On x86_64 systems, the C compiler may still be generating - # 32-bit code. - AC_EGREP_CPP([yes], - [#if defined __LP64__ || defined __x86_64__ || defined __amd64__ - yes - #endif], - [], - [FLOAT_H=float.h]) - ;; - esac - ;; - linux*) - case "$host_cpu" in - powerpc*) - FLOAT_H=float.h - ;; - esac - ;; - esac - case "$host_os" in - aix* | freebsd* | linux*) - if test -n "$FLOAT_H"; then - REPLACE_FLOAT_LDBL=1 - fi + gl_CHECK_NEXT_HEADERS([float.h]) ;; esac - - dnl Test against glibc-2.7 Linux/SPARC64 bug. - REPLACE_ITOLD=0 - AC_CACHE_CHECK([whether conversion from 'int' to 'long double' works], - [gl_cv_func_itold_works], - [ - AC_RUN_IFELSE( - [AC_LANG_SOURCE([[ -int i = -1; -volatile long double ld; -int main () -{ - ld += i * 1.0L; - if (ld > 0) - return 1; - return 0; -}]])], - [gl_cv_func_itold_works=yes], - [gl_cv_func_itold_works=no], - [case "$host" in - sparc*-*-linux*) - AC_EGREP_CPP([yes], - [#if defined __LP64__ || defined __arch64__ - yes - #endif], - [gl_cv_func_itold_works="guessing no"], - [gl_cv_func_itold_works="guessing yes"]) - ;; - *) gl_cv_func_itold_works="guessing yes" ;; - esac - ]) - ]) - case "$gl_cv_func_itold_works" in - *no) - REPLACE_ITOLD=1 - dnl We add the workaround to <float.h> but also to <math.h>, - dnl to increase the chances that the fix function gets pulled in. - FLOAT_H=float.h - ;; - esac - - if test -n "$FLOAT_H"; then - gl_NEXT_HEADERS([float.h]) - fi AC_SUBST([FLOAT_H]) - AM_CONDITIONAL([GL_GENERATE_FLOAT_H], [test -n "$FLOAT_H"]) - AC_SUBST([REPLACE_ITOLD]) ]) |