contrib: Added script contrib/check-hard to check Wget status

This script automates some tests, e.g. testing with and without valgrind,
using different configure options. It is aimed at developers to execute
before pushing commits.

contrib/check-hard

@@ -0,0 +1,52 @@
+#!/bin/sh
+# 
+# Do some checking before 'git push'.
+
+CORES=`grep -c ^processor /proc/cpuinfo 2>/dev/null || echo 0`
+if [ $CORES -lt 1 ]; then CORES=1; fi
+
+make -f Makefile distclean 2>/dev/null
+
+# automatically exit on error
+set -e
+
+export CFLAGS="-std=c89 -pedantic -O2 -g -Wall -Wextra -Wstrict-prototypes -Wold-style-definition -Wwrite-strings -Wshadow -Wformat -Wformat-security -Wunreachable-code -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition"
+
+CACHEFILE=$PWD/config_check.cache
+
+# measure time consumed and and print it at the end of the script
+START=$(date +%s.%N)
+
+echo "./bootstrap"
+./bootstrap >/dev/null
+echo
+
+for CC in gcc clang; do
+  export CC
+  echo "*** checking CC=$CC"
+
+  # the compiler changed, so we have to remove the cache file here
+  rm -f $CACHEFILE
+
+  for options in "" "--with-ssl=openssl"; do
+    export DISTCHECK_CONFIGURE_FLAGS="-C --cache-file=$CACHEFILE $options"
+    echo "  ./configure $DISTCHECK_CONFIGURE_FLAGS"
+    ./configure $DISTCHECK_CONFIGURE_FLAGS >/dev/null
+
+    for xVALGRIND in 0 1; do
+      for xLCALL in C tr_TR.utf8; do
+        export TESTS_ENVIRONMENT="LC_ALL=$xLCALL VALGRIND_TESTS=$xVALGRIND"
+        echo "    TESTS_ENVIRONMENT=\"$TESTS_ENVIRONMENT\"" make check -j$CORES
+        make check -j$CORES >/dev/null
+      done
+    done
+
+    unset TESTS_ENVIRONMENT
+    export TESTS_ENVIRONMENT
+    echo "  make distcheck -j$CORES"
+    make distcheck -j$CORES
+  done
+done
+
+END=$(date +%s.%N)
+echo "Duration: "$(echo "$END - $START" | bc)