luaTeX: Check for hstrerror()

git-svn-id: svn://tug.org/texlive/trunk@28737 c570f23f-e606-0410-a88d-b1316a301751

3 files changed, 82 insertions, 0 deletions

diff --git a/Build/source/texk/web2c/ChangeLog b/Build/source/texk/web2c/ChangeLog
index c997ce17a7b..ea94e0a7d05 100644
--- a/Build/source/texk/web2c/ChangeLog
+++ b/Build/source/texk/web2c/ChangeLog
@@ -1,5 +1,9 @@
 2013-01-05  Peter Breitenlohner  <peb@mppmu.mpg.de>
 
+	* configure.ac: Check for hstrerror() needed by luaTeX.
+
+2013-01-05  Peter Breitenlohner  <peb@mppmu.mpg.de>
+
 	* configure.ac: Check if system defines and declares strndup().
 
 2013-01-04  Peter Breitenlohner  <peb@mppmu.mpg.de>
diff --git a/Build/source/texk/web2c/configure b/Build/source/texk/web2c/configure
index efde2090e4e..8d4ca4f7ce3 100755
--- a/Build/source/texk/web2c/configure
+++ b/Build/source/texk/web2c/configure
@@ -18479,6 +18479,62 @@ if test "$ac_res" != no; then :
 
 fi
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing hstrerror" >&5
+$as_echo_n "checking for library containing hstrerror... " >&6; }
+if ${ac_cv_search_hstrerror+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char hstrerror ();
+int
+main ()
+{
+return hstrerror ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' resolv; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_hstrerror=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_hstrerror+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_hstrerror+:} false; then :
+
+else
+  ac_cv_search_hstrerror=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_hstrerror" >&5
+$as_echo "$ac_cv_search_hstrerror" >&6; }
+ac_res=$ac_cv_search_hstrerror
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing inet_aton" >&5
 $as_echo_n "checking for library containing inet_aton... " >&6; }
 if ${ac_cv_search_inet_aton+:} false; then :
@@ -18669,6 +18725,23 @@ done
     fi
   fi
   LIBS=$kpse_save_LIBS
+  case $ac_cv_search_hstrerror in #(
+  "none required") :
+     ;; #(
+  no) :
+    if test "x$enable_luatex" = xyes; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Sorry, no hstrerror(): disabling luatex" >&5
+$as_echo "$as_me: WARNING: Sorry, no hstrerror(): disabling luatex" >&2;}
+if test "x$enable_missing" = xno; then :
+  as_fn_error $? "terminating." "$LINENO" 5
+fi
+
+                       enable_luatex=no
+fi
+ ;; #(
+  *) :
+    lua_socketlibs="$lua_socketlibs $ac_cv_search_hstrerror" ;;
+esac
   case $ac_cv_search_inet_aton in #(
   "none required") :
      ;; #(
diff --git a/Build/source/texk/web2c/configure.ac b/Build/source/texk/web2c/configure.ac
index 574cd7e6546..7250f7aa87e 100644
--- a/Build/source/texk/web2c/configure.ac
+++ b/Build/source/texk/web2c/configure.ac
@@ -100,6 +100,7 @@ lua_socketlibs=$socketlibs
 if test "x$kpse_cv_have_win32" = xno; then
   kpse_save_LIBS=$LIBS
   AC_SEARCH_LIBS([gethostbyname], [nsl])
+  AC_SEARCH_LIBS([hstrerror], [resolv])
   AC_SEARCH_LIBS([inet_aton], [resolv])
   LIBS=$kpse_save_LIBS
   AC_SEARCH_LIBS([nanosleep], [rt])
@@ -114,6 +115,10 @@ if test "x$kpse_cv_have_win32" = xno; then
     fi
   fi
   LIBS=$kpse_save_LIBS
+  AS_CASE([$ac_cv_search_hstrerror],
+          ["none required"], [],
+          [no], [WEB2C_DISABLE([luatex], [no hstrerror()])],
+              [lua_socketlibs="$lua_socketlibs $ac_cv_search_hstrerror"])
   AS_CASE([$ac_cv_search_inet_aton],
           ["none required"], [],
           [no], [WEB2C_DISABLE([luatex], [no inet_aton()])],