[TOOLS] Add more checks for devel packages.

On different systems I ran into different build failures that can be
made more understandable by adding appropriate -devel package
installation checks.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

tools/check/check_crypto_lib

@@ -0,0 +1,11 @@
+#!/bin/bash
+# CHECK-BUILD CHECK-INSTALL
+
+function error {
+    echo
+    echo "  *** Check for crypto library FAILED"
+    exit 1
+}
+
+set -e
+ldconfig -p | grep -q libcrypto.so || error

tools/check/check_openssl_devel

@@ -0,0 +1,11 @@
+#!/bin/bash
+# CHECK-BUILD
+
+function error {
+    echo
+    echo "  *** Check for openssl headers FAILED"
+    exit 1
+}
+
+set -e
+[ -e /usr/include/openssl/md5.h ] || error

tools/check/check_x11_devel

@@ -0,0 +1,11 @@
+#!/bin/bash
+# CHECK-BUILD
+
+function error {
+    echo
+    echo "  *** Check for x11 headers FAILED"
+    exit 1
+}
+
+set -e
+[ -e /usr/include/X11/keysymdef.h ] || error