1 files changed, 1 insertions, 0 deletions
diff --git a/m4/check-os-options.m4 b/m4/check-os-options.m4
index 77b069f..4f56a8d 100644
--- a/m4/check-os-options.m4
+++ b/m4/check-os-options.m4
@@ -13,6 +13,7 @@ case $host_os in
                ;;
        *cygwin*)
                HOST_OS=cygwin
+                CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
                ;;
        *darwin*)
                HOST_OS=darwin

diff --git a/m4/check-os-options.m4 b/m4/check-os-options.m4 index 77b069f..4f56a8d 100644 --- a/m4/check-os-options.m4 +++ b/m4/check-os-options.m4
@@ -13,6 +13,7 @@ case $host_os in
13	;;	13	;;
14	cygwin)	14	cygwin)
15	HOST_OS=cygwin	15	HOST_OS=cygwin
		16	CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
16	;;	17	;;
17	darwin)	18	darwin)
18	HOST_OS=darwin	19	HOST_OS=darwin