From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Tue, 15 Mar 2016 10:29:35 +0000 (+0100)
Subject: Obtain name of XBoard's man file from external command
X-Git-Url: http://winboard.nl/cgi-bin?a=commitdiff_plain;h=239acdb2f77698254f921427bf8b82a9923a3dfe;p=xboard.git

Obtain name of XBoard's man file from external command

Rather than hard-coding the path to the man file, it is now obtained
by running "man -w xboard".
---

diff --git a/dialogs.c b/dialogs.c
index 430f179..191061c 100644
--- a/dialogs.c
+++ b/dialogs.c
@@ -2492,12 +2492,17 @@ GetHelpText (FILE *f, char *name)
 void
 DisplayHelp (char *name)
 {
+    static char *xboardMan;
     char buf[MSG_SIZ], tidy[MSG_SIZ];
     FILE *f;
+    if(!xboardMan) {
+	xboardMan = BufferCommandOutput("man -w xboard", MSG_SIZ); // obtain path to XBoard's man file
+	if(xboardMan) xboardMan[strlen(xboardMan)-1] = NULLCHAR;   // strip off traling linefeed
+    }
     if(currentCps) {
 	TidyProgramName(currentCps == &first ? appData.firstChessProgram : appData.secondChessProgram, "localhost", tidy);
 	snprintf(buf, MSG_SIZ, "/usr/local/share/man/man6/%s.6", tidy);
-    } else snprintf(buf, MSG_SIZ, "%s/man6/xboard.6", manDir);
+    } else snprintf(buf, MSG_SIZ, "%s", xboardMan);
     f = fopen(buf, "r");
     if(!f && currentCps) { // engine manual could be in two places
 	snprintf(buf, MSG_SIZ, "/usr/share/man/man6/%s.6", tidy);