include: add missing "extern"

[lttng-tools.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index b175ef52b2f100f37e14631e91074b765e7a8438..496c55ad1671dedc78d128d1da07e683865aef99 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -44,6 +44,7 @@ AX_APPEND_COMPILE_FLAGS([ dnl
                -Wold-style-definition dnl
                -Wstrict-prototypes dnl
                -Wshadow dnl
+               -Wno-gnu-folding-constant dnl
        ],
        [WARN_CFLAGS],
        [-Werror])
@@ -487,7 +488,6 @@ AC_CHECK_FUNC([clock_gettime], [AC_DEFINE_UNQUOTED([LTTNG_HAVE_CLOCK_GETTIME], 1
 
 # URCU library version needed or newer
 PKG_CHECK_MODULES([URCU], [liburcu >= 0.11])
-PKG_CHECK_MODULES([URCU_BP], [liburcu-bp >= 0.11])
 PKG_CHECK_MODULES([URCU_CDS], [liburcu-cds >= 0.11])
 AM_CPPFLAGS="$AM_CPPFLAGS $URCU_CFLAGS"