From: Ben Pfaff <blp@gnu.org>
Date: Mon, 26 Feb 2007 04:52:23 +0000 (+0000)
Subject: Improve portability to NetBSD and Alpha.
X-Git-Tag: v0.6.0~533
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f104ab36e50f607fdf9f645d68ac6118814ab22;p=pspp-builds.git

Improve portability to NetBSD and Alpha.
---

diff --git a/ChangeLog b/ChangeLog
index 2247ab48..57f6461d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2007-02-25  Ben Pfaff  <blp@gnu.org>
+
+	Thanks to Jason Stover for verifying that this patch helps under
+	NetBSD.
+
+	* acinclude.m4: Rename PSPP_ENABLE_WARNING to PSPP_ENABLE_OPTION,
+	because it's useful for more than warnings.
+
+	* configure.ac: Add PSPP_ENABLE_OPTION(-mieee) to improve IEEE
+	floating-point conformance on Alpha and SH architectures.  Also,
+	check for fpsetmask function (available on BSDs).
+
 Mon Feb 19 10:52:21 2007  Ben Pfaff  <blp@gnu.org>
 
 	* Smake (GNULIB_MODULES): Add dirname module, remove canonicalize
diff --git a/acinclude.m4 b/acinclude.m4
index e15ab767..5f358087 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -63,10 +63,10 @@ AC_DEFUN([PSPP_OFF_T],
   `--disable-largefile' or `CFLAGS=-ansi'.])])
 ])
 
-dnl Check whether a warning flag is accepted.
+dnl Check whether a C compiler option is accepted.
 dnl If so, add it to CFLAGS.
-dnl Example: PSPP_ENABLE_WARNING(-Wdeclaration-after-statement)
-AC_DEFUN([PSPP_ENABLE_WARNING],
+dnl Example: PSPP_ENABLE_OPTION(-Wdeclaration-after-statement)
+AC_DEFUN([PSPP_ENABLE_OPTION],
 [
   m4_define([pspp_cv_name], [pspp_cv_[]m4_translit([$1], [-], [_])])dnl
   AC_CACHE_CHECK([whether $CC accepts $1], [pspp_cv_name], 
diff --git a/configure.ac b/configure.ac
index 16a2e471..fec518d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,8 @@ AM_PROG_CC_C_O
 AC_LIBTOOL_DLOPEN
 AC_PROG_LIBTOOL
 
-PSPP_ENABLE_WARNING(-Wdeclaration-after-statement)
+PSPP_ENABLE_OPTION(-Wdeclaration-after-statement)
+PSPP_ENABLE_OPTION(-mieee)
 
 AM_CONDITIONAL(cc_is_gcc, test x"$GCC" = x"yes" )
 
@@ -80,7 +81,7 @@ AC_DEFINE(FPREP_IEEE754, 1,
 AC_C_BIGENDIAN
 
 AC_FUNC_VPRINTF
-AC_CHECK_FUNCS([__setfpucw execl fork isinf isnan finite getpid feholdexcept popen round trunc])
+AC_CHECK_FUNCS([__setfpucw execl fork isinf isnan finite getpid feholdexcept fpsetmask popen round trunc])
 
 AC_PROG_LN_S
 
diff --git a/src/ui/terminal/ChangeLog b/src/ui/terminal/ChangeLog
index a02521da..ad09bff3 100644
--- a/src/ui/terminal/ChangeLog
+++ b/src/ui/terminal/ChangeLog
@@ -1,3 +1,12 @@
+2007-02-25  Ben Pfaff  <blp@gnu.org>
+
+	Thanks to Jason Stover for verifying that this patch helps under
+	NetBSD.
+
+	* main.c [HAVE_IEEE_FP]: Include <ieeefp.h>.
+	(fpu_init) [HAVE_IEEE_FP]: Use setfpmask to mask floating-point
+	exceptions.
+
 Sun Feb 18 13:28:26 2007  Ben Pfaff  <blp@gnu.org>
 
 	* msg-ui.c: Don't include exit.h, because gnulib fixes up stdlib.h
diff --git a/src/ui/terminal/main.c b/src/ui/terminal/main.c
index 2f7d1fbe..e2cd180d 100644
--- a/src/ui/terminal/main.c
+++ b/src/ui/terminal/main.c
@@ -58,6 +58,10 @@
 #include <fenv.h>
 #endif
 
+#if HAVE_IEEEFP_H
+#include <ieeefp.h>
+#endif
+
 #include "gettext.h"
 #define _(msgid) gettext (msgid)
 
@@ -158,6 +162,8 @@ fpu_init (void)
   feholdexcept (&foo);
 #elif HAVE___SETFPUCW && defined(_FPU_IEEE)
   __setfpucw (_FPU_IEEE);
+#elif HAVE_FPSETMASK
+  fpsetmask (0);
 #endif
 }