Remove gettid warning

[lttng-ust.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index b442a81dc271eb7bb1f10739d6e0defb04b49931..511da2e95c8b672efb593824cd684cb139030664 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -77,9 +77,25 @@ AC_CHECK_LIB([dl], [dlopen])
 AC_CHECK_LIB([pthread], [pthread_create])
 
 # Check for libuuid
-AC_CHECK_LIB([uuid], [uuid_generate], [],
-       [AC_MSG_ERROR([Cannot find libuuid. Use [LDFLAGS]=-Ldir to specify its location.])]
+AC_CHECK_LIB([uuid], [uuid_generate],
+[
+       AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBUUID], 1, [Has libuuid support.])
+       have_libuuid=yes
+],
+[
+       # libuuid not found, check for uuid_create in libc.
+       AC_CHECK_LIB([c], [uuid_create],
+       [
+               AC_DEFINE_UNQUOTED([LTTNG_UST_HAVE_LIBC_UUID], 1, [Has libc uuid support.])
+               have_libc_uuid=yes
+       ],
+       [
+               AC_MSG_ERROR([Cannot find libuuid uuid_generate nor libc uuid_create. Use [LDFLAGS]=-Ldir to specify its location.])
+       ])
+]
 )
+AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBUUID], [test "x$have_libuuid" = "xyes"])
+AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_UUID], [test "x$have_libc_uuid" = "xyes"])
 
 # Checks for header files.
 #AC_CHECK_HEADERS([fcntl.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])