build: rename all symbols to use sysprof_ as prefix

As we gain in usage, we need to be more careful about using a prefix
that will not collide with other symbols. So version 3 of our ABI will
change to using Sysprof/SYSPROF/sysprof as the various prefixes.

The soname/api version bump will happen later on this branch so that
things are easier to test up until then.

src/libsysprof/sysprof-proc-source.h

@@ -0,0 +1,40 @@
+/* sysprof-proc-source.h
+ *
+ * Copyright 2016-2019 Christian Hergert <chergert@redhat.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+#pragma once
+
+#include "sysprof-version-macros.h"
+
+#include "sysprof-source.h"
+
+G_BEGIN_DECLS
+
+#define SYSPROF_TYPE_PROC_SOURCE (sysprof_proc_source_get_type())
+
+SYSPROF_AVAILABLE_IN_ALL
+G_DECLARE_FINAL_TYPE (SysprofProcSource, sysprof_proc_source, SYSPROF, PROC_SOURCE, GObject)
+
+SYSPROF_AVAILABLE_IN_ALL
+SysprofSource *sysprof_proc_source_new              (void);
+SYSPROF_AVAILABLE_IN_ALL
+gchar    *sysprof_proc_source_get_command_line (GPid          pid,
+                                           gboolean     *is_kernel);
+
+G_END_DECLS