From: Alexander Barton <alex@barton.de>
Date: Sun, 10 Nov 2013 16:08:41 +0000 (+0100)
Subject: Only use unsetenv() when it is available
X-Git-Tag: rel-22-rc1~92
X-Git-Url: https://arthur.barton.de/cgi-bin/gitweb.cgi?p=ngircd-alex.git;a=commitdiff_plain;h=ae00c100acdb4d2d3f99524d30258d07eefcfb6d;hp=61d1c864c55291c1f5f81f284e984b044fe2722f

Only use unsetenv() when it is available

AIX 4.3 dosn't support it, for example.
---

diff --git a/configure.ng b/configure.ng
index e3f51cf0..b9e92704 100644
--- a/configure.ng
+++ b/configure.ng
@@ -189,7 +189,7 @@ AC_CHECK_FUNCS([ \
 AC_CHECK_FUNCS_ONCE([ \
 	arc4random arc4random_stir gai_strerror getaddrinfo getnameinfo inet_aton
 	sigaction sigprocmask snprintf vsnprintf strdup strndup strlcpy strlcat \
-	strtok_r waitpid])
+	strtok_r unsetenv waitpid])
 
 # -- Configuration options --
 
diff --git a/src/ngircd/conn.c b/src/ngircd/conn.c
index 324fa421..e8bfcf1c 100644
--- a/src/ngircd/conn.c
+++ b/src/ngircd/conn.c
@@ -152,7 +152,9 @@ my_sd_listen_fds(void)
 	if (!e || !*e)
 		return -1;
 	count = atoi(e);
+#ifdef HAVE_UNSETENV
 	unsetenv("LISTEN_FDS");
+#endif
 
 	return count;
 }