doc/filters: add forgotten sentence for blend filter examples

[ffmpeg] / configure

diff --git a/configure b/configure
index b617f90a29076cbc94de02d755b4c1dbbddeccc5..083d4abcdc3b9fe0f01cfec3094e846020639d54 100755 (executable)
--- a/configure
+++ b/configure
@@ -3726,7 +3726,7 @@ check_func  getopt
 check_func  getrusage
 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
 check_func  gettimeofday
-check_func  iconv
+check_func  iconv || check_lib2 iconv.h iconv -liconv
 check_func  inet_aton $network_extralibs
 check_func  isatty
 check_func  localtime_r