Add GpgME module and improve autotools support

When a configure.ac or configure.in file exists in the source
dir but no configure file and an autogen.sh script exists this
will now run ./autogen.sh in the source dir to hopefully
create the configure file and then use that in the actual configure
step.

This is required for all GnuPG Libraries and so also for GPGME.

REVIEW: 129070

kf5-frameworks-build-include

@@ -77,3 +77,9 @@ module grantlee
     repository https://github.com/steveire/grantlee.git
     branch master
 end module
+
+module gpgme
+    repository git://git.gnupg.org/gpgme.git
+    branch master
+    configure-flags --enable-maintainer-mode --enable-languages=cpp,qt
+end module

modules/ksb/BuildSystem/Autotools.pm

@@ -34,12 +34,27 @@ sub configureInternal
     my @bootstrapOptions = split_quoted_on_whitespace(
         $module->getOption('configure-flags', 'module') // '');
 
-    p_chdir($module->fullpath('build'));
-
     my $configureCommand = first { -e "$sourcedir/$_" } qw(configure autogen.sh);
 
+    my $configureInFile = first { -e "$sourcedir/$_" } qw(configure.in configure.ac);
+
+    # If we have a configure.in or configure.ac but configureCommand is autogen.sh
+    # we assume that configure is created by autogen.sh as usual in some GNU Projects.
+    # So we run autogen.sh first to create the configure command and
+    # recheck for that.
+    if ($configureInFile && $configureCommand eq 'autogen.sh')
+    {
+        p_chdir($sourcedir);
+        my $err = log_command($module, 'autogen', ["$sourcedir/$configureCommand"]);
+        return 0 if $err != 0;
+        # Now recheck
+        $configureCommand = first { -e "$sourcedir/$_" } qw(configure autogen.sh);
+    }
+
     croak_internal("No configure command available") unless $configureCommand;
 
+    p_chdir($module->fullpath('build'));
+
     return log_command($module, 'configure', [
             "$sourcedir/$configureCommand", "--prefix=$installdir",
             @bootstrapOptions