Only use unsetenv() when it is available

[ngircd-alex.git] / configure.ng

diff --git a/configure.ng b/configure.ng
index faf3086b6b87b2d5d3d964e9024f4f067d8c056e..b9e92704e9fab7bcb1dfac7d36d63ffb2a8c0a6d 100644 (file)
--- a/configure.ng
+++ b/configure.ng
@@ -187,8 +187,9 @@ AC_CHECK_FUNCS([ \
 
 # Optional functions
 AC_CHECK_FUNCS_ONCE([ \
-       gai_strerror getaddrinfo getnameinfo inet_aton sigaction sigprocmask \
-       snprintf vsnprintf strdup strndup strlcpy strlcat strtok_r waitpid])
+       arc4random arc4random_stir gai_strerror getaddrinfo getnameinfo inet_aton
+       sigaction sigprocmask snprintf vsnprintf strdup strndup strlcpy strlcat \
+       strtok_r unsetenv waitpid])
 
 # -- Configuration options --