Allow the configuration file and theme directory to be specified at run time.

Patch by Eelco Dolstra, from Nixpkgs.
---
 app.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/app.cpp b/app.cpp
index 237477d..735df9c 100644
--- a/app.cpp
+++ b/app.cpp
@@ -285,7 +285,9 @@ void App::Run()
 	if ( cfg == 0 )
 	{
 		cfg = new Cfg;
-		cfg->readConf(CFGFILE);
+		const char* cfgfile = getenv("SLIM_CFGFILE");
+		if (!cfgfile) cfgfile = CFGFILE;
+		cfg->readConf(cfgfile);
 	}
 	string themebase = "";
 	string themefile = "";
@@ -297,7 +299,9 @@ void App::Run()
 	}
 	else
 	{
-		themebase = string(THEMESDIR) + "/";
+		const char* themesdir = getenv("SLIM_THEMESDIR");
+		if (!themesdir) themesdir = THEMESDIR;
+		themebase = string(themesdir) + "/";
 		themeName = cfg->getOption("current_theme");
 		string::size_type pos;
 		if ((pos = themeName.find(",")) != string::npos)
-- 
2.39.2

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<tr><td><span title='2022-11-15 12:16:43 +0100'>2022-11-15</span></td><td><a href='/guix/commit/gnu/installer/record.scm?id=514fedbf3966b7fbab31a6c63b4210ec8b5b0c9a'>installer: Report known-unsupported PCI devices.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/hardware.scm: New file.
* gnu/local.mk (INSTALLER_MODULES): Add it.
* po/guix/POTFILES.in: Add it.
* gnu/installer.scm (installer-steps): Pass #:pci-database to the
'welcome' step procedure.
* gnu/installer/newt.scm (welcome-page): Add #:pci-database and pass it
to 'run-welcome-page'.
* gnu/installer/newt/welcome.scm (check-hardware-support): Add #:pci-database.
Enumerate unsupported PCI devices and run an error page when unsupported
devices are found.
(run-welcome-page): Add #:pci-database and pass it to
'check-hardware-support' and to the recursive call.
* gnu/installer/record.scm (&lt;installer&gt;)[welcome-page]: Adjust comment.
* doc/guix.texi (Hardware Considerations): Mention it.
</span></span></td><td>Ludovic Courtès</td></tr>