configure: Use printf to achieve result of "echo -n".

We had avoided using "echo -n" originally for portability concerns,
and instead just printed the same string in both conditions, (and
also printed the string late if any check took long). The word is
that printf is quite portable, so we use that instead.

diff --git a/configure b/configure
index 140711f32f38587ab792955aa0dbb22cd05ded6c..2ceda74bc65c3d237ab3449340533b495a086d49 100755 (executable)
--- a/configure
+++ b/configure
@@ -28,38 +28,42 @@ else
     have_pkg_config=0
 fi
 
+printf "Checking for Xapian development files... "
 if xapian-config --version > /dev/null 2>&1; then
-    echo "Checking for Xapian development files... Yes."
+    printf "Yes.\n"
     have_xapian=1
 else
-    echo "Checking for Xapian development files... No."
+    printf "No.\n"
     have_xapian=0
     errors=$((errors + 1))
 fi
 
+printf "Checking for GMime 2.4 development files... "
 if pkg-config --modversion gmime-2.4 > /dev/null 2>&1; then
-    echo "Checking for GMime 2.4 development files... Yes."
+    printf "Yes.\n"
     have_gmime=1
 else
-    echo "Checking for GMime 2.4 development files... No."
+    printf "No.\n"
     have_gmime=0
     errors=$((errors + 1))
 fi
 
+printf "Checking for talloc development files... "
 if pkg-config --modversion talloc > /dev/null 2>&1; then
-    echo "Checking for talloc development files... Yes."
+    printf "Yes.\n"
     have_talloc=1
 else
-    echo "Checking for talloc development files... No."
+    printf "No.\n"
     have_talloc=0
     errors=$((errors + 1))
 fi
 
+printf "Checking for valgrind development files... "
 if pkg-config --modversion valgrind > /dev/null 2>&1; then
-    echo "Checking for valgrind development files... Yes."
+    printf "Yes.\n"
     have_valgrind=-DHAVE_VALGRIND
 else
-    echo "Checking for valgrind development files... No."
+    printf "No (but that's fine).\n"
     have_valgrind=
 fi