diff src/auto/configure @ 8342:446558924b66 v7.4.1463

commit https://github.com/vim/vim/commit/a6b8976bb724f8c85dd5699d115d795f7b730298 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Feb 29 21:38:26 2016 +0100 patch 7.4.1463 Problem: Configure doesn't find isinf() and isnan() on some systems. Solution: Use a configure check that includes math.h.
author Christian Brabandt <cb@256bit.org>
date Mon, 29 Feb 2016 21:45:04 +0100
parents 6ae3fb4fe7c1
children caed4b2d305f
line wrap: on
line diff
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -11858,7 +11858,7 @@ for ac_func in bcmp fchdir fchown fsync 
 	setpgid setsid sigaltstack sigstack sigset sigsetjmp sigaction \
 	sigvec strcasecmp strerror strftime stricmp strncasecmp \
 	strnicmp strpbrk strtol tgetent towlower towupper iswupper \
-	usleep utime utimes isnan isinf
+	usleep utime utimes
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
@@ -12386,6 +12386,70 @@ fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf()" >&5
+$as_echo_n "checking for isinf()... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef HAVE_MATH_H
+# include <math.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#endif
+
+int
+main ()
+{
+int r = isinf(1.11);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }; $as_echo "#define HAVE_ISINF 1" >>confdefs.h
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for isnan()" >&5
+$as_echo_n "checking for isnan()... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#ifdef HAVE_MATH_H
+# include <math.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#endif
+
+int
+main ()
+{
+int r = isnan(1.11);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }; $as_echo "#define HAVE_ISNAN 1" >>confdefs.h
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking --disable-acl argument" >&5
 $as_echo_n "checking --disable-acl argument... " >&6; }
 # Check whether --enable-acl was given.