configure.ac: Mention required lib versions.

In the summary output at the end of a configure run, explicitly mention
which versions of which libraries are required, and also the version which
pkg-config has found.

diff --git a/configure.ac b/configure.ac
index 7be2dfff9dd143ae265de482fa2ba0ef386178cc..6a20c9ec7f7154ec25eb5aa776a79175d7cc8305 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -465,7 +465,7 @@ echo "Detected libraries:"
 echo
 
 # Note: This only works for libs with pkg-config integration.
-for lib in "glib-2.0" "libzip" "libusb-1.0" "libftdi" "libudev" "alsa" "check"; do
+for lib in "glib-2.0 >= 2.28.0" "libzip >= 0.8" "libusb-1.0 >= 1.0.9" "libftdi >= 0.16" "libudev >= 151" "alsa >= 1.0" "check >= 0.9.4"; do
        if `$PKG_CONFIG --exists $lib`; then
                ver=`$PKG_CONFIG --modversion $lib`
                answer="yes ($ver)"