fix: Make XMLVER always print version message

The current RPG code calls writeIFS to write directly to file descriptor
1 (stdout), but this descriptor is not guaranteed to be set up and most
certainly is *not* when the program is called from a CL command line
instead of from QSH.

Instead, of calling write() we can call printf(), which ensures that this
descriptor gets set up and a temporary terminal output window is shown when
XMLVER is called from a CL prompt and the output is shown like normal when
called from QSH.

In addition, print a trailing newline so as to not mess up the prompt when
called from a shell.

.bumpversion.cfg

@@ -10,6 +10,8 @@ serialize =
 
 [bumpversion:file:src/plugconf_h.rpgle]
 
+[bumpversion:file:src/xmlver.c]
+
 [bumpversion:file:docs/conf.py]
 
 [bumpversion:part:release]

Makefile.in

@@ -104,6 +104,13 @@ xmlstoredp.srvpgm: qsrvsrc.srcpf $(XMLSTOREDP_MODULES)
 	if [ -e $*.failed ]; then rm $*.failed; exit 1; fi
 	touch $@
 
+%.module: src/%.c
+	system "CRTCMOD MODULE($(LIBRARY)/$*) SRCSTMF('$<') DBGVIEW($(DBGVIEW)) REPLACE(*YES) TGTCCSID(37)" > $*.log 2> $*.msg && rm $*.log $*.msg || touch $*.failed
+	test ! -e $*.msg || cat $*.msg
+	test ! -e $*.log || cat $*.log
+	if [ -e $*.failed ]; then rm $*.failed; exit 1; fi
+	touch $@
+
 %.lib:
 	(system -q 'CHKOBJ $* *LIB' || system -q 'CRTLIB $*') && touch $@
 

src/xmlver.c

@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+const char* version = "XML Toolkit 2.0.2-dev";
+
+int main()
+{
+    printf("%s\n", version);
+    return 0;
+}
+