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authorAnas Nashif <anas.nashif@intel.com>2012-12-20 20:15:32 -0800
committerAnas Nashif <anas.nashif@intel.com>2012-12-20 20:15:32 -0800
commit81f1c64e30d2ea59604a628bca9f1d04b1f82afb (patch)
tree24fef6ba91ee63db41bbf6940dd2e8bdc348ac89 /m4/float_h.m4
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Imported Upstream version 1.13.4upstream/1.13.4
Diffstat (limited to 'm4/float_h.m4')
-rw-r--r--m4/float_h.m449
1 files changed, 49 insertions, 0 deletions
diff --git a/m4/float_h.m4 b/m4/float_h.m4
new file mode 100644
index 0000000..261f1ac
--- /dev/null
+++ b/m4/float_h.m4
@@ -0,0 +1,49 @@
+# float_h.m4 serial 7
+dnl Copyright (C) 2007, 2009-2011 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.
+
+AC_DEFUN([gl_FLOAT_H],
+[
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ FLOAT_H=
+ REPLACE_FLOAT_LDBL=0
+ case "$host_os" in
+ aix* | beos* | openbsd* | mirbsd* | irix*)
+ FLOAT_H=float.h
+ ;;
+ freebsd*)
+ case "$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
+ ;;
+ esac
+ case "$host_os" in
+ aix* | freebsd*)
+ if test -n "$FLOAT_H"; then
+ REPLACE_FLOAT_LDBL=1
+ fi
+ ;;
+ 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"])
+])