Use a variable to select the dlopen lib in Makefiles

[lttng-ust.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 5f27f99980d850edd0c065fc879558b7c1b03233..f2be286875916beb224ec50a41e990aa161a5f22 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -207,17 +207,18 @@ AH_TEMPLATE([LTTNG_UST_HAVE_PERF_EVENT], [Perf event integration via perf_event.
 
 # Checks for libraries.
 AC_CHECK_LIB([dl], [dlopen], [
-       have_libdl=yes
        libdl_name=dl
+       DL_LIBS="-ldl"
 ], [
        #libdl not found, check for dlopen in libc.
        AC_CHECK_LIB([c], [dlopen], [
-               have_libc_dl=yes
                libdl_name=c
+               DL_LIBS="-lc"
        ], [
                AC_MSG_ERROR([Cannot find dlopen in libdl nor libc. Use [LDFLAGS]=-Ldir to specify their location.])
        ])
 ])
+AC_SUBST(DL_LIBS)
 
 # Check if libdl has dlmopen support.
 AH_TEMPLATE([HAVE_DLMOPEN], ["Define to 1 if dlmopen is available."])
@@ -225,9 +226,6 @@ AC_CHECK_LIB([$libdl_name], [dlmopen],
        [AC_DEFINE([HAVE_DLMOPEN], [1])]
 )
 
-AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBDL], [test "x$have_libdl" = "xyes"])
-AM_CONDITIONAL([LTTNG_UST_BUILD_WITH_LIBC_DL], [test "x$have_libc_dl" = "xyes"])
-
 AC_CHECK_LIB([pthread], [pthread_create])
 AC_CHECK_LIB([pthread], [pthread_setname_np],
        AC_DEFINE([HAVE_PTHREAD_SETNAME_NP], [1], [Define to 1 if pthread_setname_np is available.]),