patch 8.0.1826: configure uses old compiler flag
Problem: Configure uses old compiler flag.
Solution: Remove _DARWIN_C_SOURCE. (Kazunobu Kuriyama)
diff --git a/src/auto/configure b/src/auto/configure
index c1d477c..e65884c 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -4556,7 +4556,7 @@
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
MACOS_X=yes
- CPPFLAGS="$CPPFLAGS -D_DARWIN_C_SOURCE -DMACOS_X"
+ CPPFLAGS="$CPPFLAGS -DMACOS_X"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking --disable-darwin argument" >&5
$as_echo_n "checking --disable-darwin argument... " >&6; }