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-rw-r--r--configure.ac5
1 files changed, 4 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac
index 42c6332..9a17fe6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -121,7 +121,10 @@ AS_CASE(["${host_os}"],
],
[*freebsd*], [
# Define on FreeBSD to enable all library features
- CPPFLAGS="-D__BSD_VISIBLE $CPPFLAGS"
+ # -D_GNU_SOURCE should not hurt on the "real" FreeBSD, it just
+ # enables getline(3), but may help on Debian GNU/kFreeBSD, where
+ # libc is GNU Libc or derived.
+ CPPFLAGS="-D__BSD_VISIBLE -D_GNU_SOURCE $CPPFLAGS"
AC_DEFINE([XS_HAVE_FREEBSD], [1], [Have FreeBSD OS])
],
[*darwin*], [