$NetBSD: patch-configure,v 1.10 2022/08/24 13:09:34 ryoon Exp $

* Found iconv function in libc. Fix Libs.private=-liconv in sdl2.pc.

--- configure.orig	2022-08-23 14:36:41.507122435 +0000
+++ configure
@@ -20006,7 +20006,48 @@ then :
 fi
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for iconv_open in -liconv" >&5
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for iconv_open in -lc" >&5
+printf %s "checking for iconv_open in -lc... " >&6; }
+if test ${ac_cv_lib_c_iconv_open+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$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.  */
+char iconv_open ();
+int
+main (void)
+{
+return iconv_open ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_c_iconv_open=yes
+else $as_nop
+  ac_cv_lib_c_iconv_open=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_iconv_open" >&5
+printf "%s\n" "$ac_cv_lib_c_iconv_open" >&6; }
+if test "x$ac_cv_lib_c_iconv_open" = xyes
+then :
+  found_libc_iconv=yes
+fi
+
+    if test x$found_libc_iconv != xyes; then
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for iconv_open in -liconv" >&5
 printf %s "checking for iconv_open in -liconv... " >&6; }
 if test ${ac_cv_lib_iconv_iconv_open+y}
 then :
@@ -20046,6 +20087,7 @@ then :
   LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"
 fi
 
+    fi
     ac_fn_c_check_func "$LINENO" "iconv" "ac_cv_func_iconv"
 if test "x$ac_cv_func_iconv" = xyes
 then :