X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fmain.cc;h=ba8c3acbbc7d21c7003493ac3f335c578b440c06;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=79de28c44f5dd56c82d8bddaf6a1e0904262c27d;hpb=b33b2f745973360e6aaae8277cb291ddb57d8b45;p=lilypond.git

diff --git a/lily/main.cc b/lily/main.cc
index 79de28c44f..ba8c3acbbc 100644
--- a/lily/main.cc
+++ b/lily/main.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "main.hh"
@@ -166,6 +166,29 @@ static Long_option_init options_static[]
 
 char const *LILYPOND_DATADIR = PACKAGE_DATADIR "/" TOPLEVEL_VERSION;
 
+
+/* x86 defaults to using 80-bit extended precision arithmetic. This can cause
+   problems because the truncation from 80 bits to 64 bits can occur in
+   unpredictable places. To get around this, we tell the x87 FPU to use only
+   double precision. Note that this is not needed for x86_64 because that uses
+   the SSE unit by default instead of the x87 FPU. */
+#if ((defined(__x86__) || defined(__i386__)) \
+  && defined(HAVE_FPU_CONTROL_H) && (HAVE_FPU_CONTROL_H == 1))
+
+#include <fpu_control.h>
+static void configure_fpu() {
+  fpu_control_t fpu_control = 0x027f;
+  _FPU_SETCW (fpu_control);
+}
+
+#else
+
+static void configure_fpu() {
+}
+
+#endif /* defined(__x86__) || defined(__i386__) */
+
+
 static void
 env_var_info (FILE *out, char const *key)
 {
@@ -201,7 +224,7 @@ static void
 copyright ()
 {
   printf (_f ("Copyright (c) %s by\n%s  and others.",
-	      "1996--2007",
+	      "1996--2008",
 	      AUTHORS).c_str ());
   printf ("\n");
 }
@@ -217,9 +240,10 @@ static void
 notice ()
 {
   identify (stdout);
-  puts (_f (NOTICE, PROGRAM_NAME).c_str ());
   printf ("\n");
   copyright ();
+  printf ("\n");
+  puts (_f (NOTICE, PROGRAM_NAME).c_str ());
 }
 
 LY_DEFINE (ly_usage, "ly:usage",
@@ -534,7 +558,6 @@ parse_argv (int argc, char **argv)
 
   if (show_help)
     {
-      identify (stdout);
       ly_usage ();
       if (be_verbose_global)
 	dir_info (stdout);
@@ -567,9 +590,11 @@ setup_guile_env ()
 vector<string> start_environment_global;
  
 int
-main (int argc, char **argv)
+main (int argc, char **argv, char **envp)
 {
-  for (char **p = environ; *p; p++)
+  configure_fpu();
+
+  for (char **p = envp; *p; p++)
     start_environment_global.push_back(*p);
   
   if (getenv ("LILYPOND_VERBOSE"))
@@ -600,25 +625,3 @@ main (int argc, char **argv)
   /* Only reachable if GUILE exits.  That is an error.  */
   return 1;
 }
-
-SCM atexit_list = SCM_EOL;
-
-LY_DEFINE (ly_atexit, "ly:atexit",
-	   2, 0, 0, (SCM proc, SCM args),
-	   "Just before exiting, call the procedure given. "
-"If this is called multiple times, the procedures are called "
-"in LIFO order.")
-{
-  atexit_list = scm_cons (scm_cons (proc, args), atexit_list);
-  scm_gc_protect_object (atexit_list);
-  return SCM_UNSPECIFIED;
-}
-
-LY_DEFINE (ly_do_atexit, "ly:do-atexit",
-	   0, 0, 0, (),
-	   "Call the atexit procedures.")
-{
-  for (SCM s = atexit_list; scm_is_pair (s); s = scm_cdr (s))
-    scm_apply_0 (scm_caar (s), scm_cdar (s));
-  return SCM_UNSPECIFIED;
-}