Create cdilib.c in the build directory.

src/Makefile.am

@@ -327,8 +327,8 @@ pkgconfig/cdipio.pc: $(top_builddir)/config.status $(srcdir)/pkgconfig/cdipio.pc
 pkgconfig/cdi_f2003.pc: $(top_builddir)/config.status $(srcdir)/pkgconfig/cdi_f2003.pc.in
 	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
 
-cdilib.c:
-	$(AM_V_GEN)$(am__cd) $(top_srcdir)/src && ./make_cdilib
+cdilib.c: $(libcdi_la_SOURCES) $(srcdir)/make_cdilib
+	$(AM_V_GEN)CPP='$(CPP)' $(srcdir)/make_cdilib $(srcdir)
 
 CLEANFILES = cdilib.c
 MOSTLYCLEANFILES = make_fint

src/make_cdilib

@@ -19,8 +19,9 @@ rm -f ${PROG}
 
 DATE=`date +%F`
 
-if test -f ../configure.ac ; then
-   CDILIBVERSION=\"`sed -n '/^AC_INIT(/s/AC_INIT *( *[^,]*,[[ ]*\([^],]*\).*/\1/ p' ../configure.ac`\"
+config_file="${srcdir}/../configure.ac"
+if test -f "$config_file" ; then
+   CDILIBVERSION=\"`sed -n '/^AC_INIT(/s/AC_INIT *( *[^,]*,[[ ]*\([^],]*\).*/\1/ p' "$config_file"`\"
 else
    echo "error: cannot find configure.ac" >&2
    exit 1
@@ -193,8 +194,10 @@ until test "foo$scanlist" = "foo" ; do
             if echo "$fileList" | grep -q '\<'"$curFile"'\>' ; then
                 true    #Nothing to do, we have already scanned this header.
             else
+                curFilePath="$srcdir/$curFile"
+                if [ "$curFile" = "config.h" ] ; then curFilePath="$curFile" ; fi
                 #Prepend the includes of the current header to the scanlist so that we will scan them in the order that the preprocessor would.
-                scanlist="$(listIncludes "$curFile") <$curFile> $scanlist"
+                scanlist="$(listIncludes "$curFilePath") <$curFile> $scanlist"
             fi
             ;;
     esac
@@ -212,7 +215,7 @@ for file in $fileList ; do
 done
 
 
-cpp -P -DVERSION="${CDILIBVERSION}" -DCDI_H_ \
+${CPP-cpp} -P -DVERSION="${CDILIBVERSION}" -DCDI_H_ \
   $srcdir/version.c >>${PROG}
 
 # Fortran interface (with -DHAVE_CF_INTERFACE)