- configure now tries to use pkg-config for a number of sub-dependencies even

when cross-compiling. The key to success is then you properly setup
  PKG_CONFIG_PATH before invoking configure.

  I also improved how NSS is detected by trying nss-config if pkg-config isn't
  present, and as a last resort just use the lib name and force the user to
  setup the LIBS/LDFLAGS/CFLAGS etc properly. The previous last resort would
  add a range of various libs that would almost never be quite correct.

acinclude.m4

@@ -3200,8 +3200,7 @@ dnl "no" anyway!
 dnl
 
 AC_DEFUN([CURL_CHECK_PKGCONFIG], [
-  if test x$cross_compiling != xyes; then
-    dnl only do pkg-config magic when not cross-compiling
+
     AC_PATH_PROG( PKGCONFIG, pkg-config, no, $PATH:/usr/bin:/usr/local/bin)
 
     if test x$PKGCONFIG != xno; then
@@ -3217,8 +3216,4 @@ AC_DEFUN([CURL_CHECK_PKGCONFIG], [
         AC_MSG_RESULT([found])
       fi
     fi
-
-  else
-    PKGCONFIG="no"
-  fi
 ])