compile with -std=c99 instead of -std=gnu99; use kiddie-gloves with bluetooth/bluetooh.h (#28017)
diff --git a/configure b/configure
index 8c1650c..8355005 100755
--- a/configure
+++ b/configure
@@ -6855,9 +6855,7 @@
# tweak BASECFLAGS based on compiler and platform
case $GCC in
yes)
- # GNU dialect of C99, enables GNU extensions like __attribute__. GNU99
- # is required by bluetooth.h on big endian machines.
- CFLAGS_NODIST="$CFLAGS_NODIST -std=gnu99"
+ CFLAGS_NODIST="$CFLAGS_NODIST -std=c99"
# Python doesn't violate C99 aliasing rules, but older versions of
# GCC produce warnings for legal Python code. Enable
@@ -7617,7 +7615,7 @@
sys/stat.h sys/syscall.h sys/sys_domain.h sys/termio.h sys/time.h \
sys/times.h sys/types.h sys/uio.h sys/un.h sys/utsname.h sys/wait.h pty.h \
libutil.h sys/resource.h netpacket/packet.h sysexits.h bluetooth.h \
-bluetooth/bluetooth.h linux/tipc.h linux/random.h spawn.h util.h alloca.h endian.h \
+linux/tipc.h linux/random.h spawn.h util.h alloca.h endian.h \
sys/endian.h
do :
as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
@@ -7840,6 +7838,24 @@
fi
+# bluetooth/bluetooth.h has been known to not compile with -std=c99.
+# http://permalink.gmane.org/gmane.linux.bluez.kernel/22294
+SAVE_CFLAGS=$CFLAGS
+CFLAGS="-std=c99 $CFLAGS"
+for ac_header in bluetooth/bluetooth.h
+do :
+ ac_fn_c_check_header_mongrel "$LINENO" "bluetooth/bluetooth.h" "ac_cv_header_bluetooth_bluetooth_h" "$ac_includes_default"
+if test "x$ac_cv_header_bluetooth_bluetooth_h" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_BLUETOOTH_BLUETOOTH_H 1
+_ACEOF
+
+fi
+
+done
+
+CFLAGS=$SAVE_CFLAGS
+
# On Darwin (OS X) net/if.h requires sys/socket.h to be imported first.
for ac_header in net/if.h
do :