Alternative for isinf (fix for bug 12008)

[Petr Sumbera]

---
 configure           |  148 +++++++++++++++++++++++++++++++++++++++++++++++++++
 configure.ac        |    6 ++
 include/config.h.in |    3 +
 include/wine/port.h |    5 ++
 4 files changed, 162 insertions(+), 0 deletions(-)

diff --git a/configure b/configure
index bfb0880..3de74c3 100755
--- a/configure
+++ b/configure
@@ -17078,6 +17078,154 @@ fi
 done
 
 
+
+for ac_func in isinf
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+{ echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6; }
+if { as_var=$as_ac_var; eval "test \"\${$as_var+set}\" = set"; }; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$ac_func || defined __stub___$ac_func
+choke me
+#endif
+
+int
+main ()
+{
+return $ac_func ();
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	eval "$as_ac_var=no"
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+ac_res=`eval echo '${'$as_ac_var'}'`
+	       { echo "$as_me:$LINENO: result: $ac_res" >&5
+echo "${ECHO_T}$ac_res" >&6; }
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+  { echo "$as_me:$LINENO: checking for isinf with <math.h>" >&5
+echo $ECHO_N "checking for isinf with <math.h>... $ECHO_C" >&6; }
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <math.h>
+int
+main ()
+{
+float f = 0.0; isinf(f)
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext &&
+       $as_test_x conftest$ac_exeext; then
+  { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_ISINF 1
+_ACEOF
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	{ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+done
+
+
 if test "$ac_cv_func_dlopen" = no
 then
     { echo "$as_me:$LINENO: checking for dlopen in -ldl" >&5
diff --git a/configure.ac b/configure.ac
index 31bf9ce..9ab1500 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1413,6 +1413,12 @@ AC_CHECK_FUNCS(\
 	waitpid \
 )
 
+dnl Check for isinf
+AC_CHECK_FUNCS(isinf, ,
+  [AC_MSG_CHECKING(for isinf with <math.h>)
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]], [[float f = 0.0; isinf(f)]])],[AC_MSG_RESULT(yes)
+      AC_DEFINE(HAVE_ISINF,1,we have the isinf function)],[AC_MSG_RESULT(no)])])
+
 dnl Check for -ldl
 if test "$ac_cv_func_dlopen" = no
 then
diff --git a/include/config.h.in b/include/config.h.in
index 8763be3..5d9e981 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -249,6 +249,9 @@
 /* Define to 1 if you have the <io.h> header file. */
 #undef HAVE_IO_H
 
+/* Define to 1 if you have the `isinf' function. */ 
+#undef HAVE_ISINF
+
 /* Define to 1 if you have the <jack/jack.h> header file. */
 #undef HAVE_JACK_JACK_H
 
diff --git a/include/wine/port.h b/include/wine/port.h
index 6727891..59c12aa 100644
--- a/include/wine/port.h
+++ b/include/wine/port.h
@@ -146,6 +146,11 @@ struct statvfs
 #define strtoull _strtoui64
 #endif
 
+#if !defined(HAVE_ISINF) && defined(HAVE_IEEEFP_H)
+#include <ieeefp.h>
+#define isinf(x) (!(finite(x) || isnand(x)))
+#endif
+
 #ifndef S_ISLNK
 # define S_ISLNK(mod) (0)
 #endif
-- 
1.5.4.5


--Boundary_(ID_NcAW02MBIQ5U8ZAkaiqWXQ)--