On 08/08/2014 18:58, Ilia Mirkin wrote:
The problem is that AC_CHECK_FUNCS would stick the LDFLAGS before the
conftest.c arg while AC_CHECK_LIB sticks the -ldl after conftest.c.
This apparently matters with newer gcc's. There's probably some
The key difference seems to be that lto was enabled, which I guess means
we can't get away with listing objects in a random order :-)
correct autoconf way of dealing with it, but... this works :)
I think I have used LDFLAGS here where I should have used LIBS.
So the more correct way is something like:
diff --git a/configure.ac b/configure.ac
index 96a67a3..bba64a0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -535,9 +535,10 @@ AC_CHECK_FUNC([dlopen], [DEFINES="$DEFINES
-DHAVE_DLOPEN"],
AC_SUBST([DLOPEN_LIBS])
dnl Check if that library also has dladdr
-AC_CHECK_FUNC([dladdr], [DEFINES="$DEFINES -DHAVE_DLADDR"],
- [AC_CHECK_LIB([dl], [dladdr],
- [DEFINES="$DEFINES -DHAVE_DLADDR"])])
+save_LIBS="$LIBS"
+LIBS="$LIBS $DLOPEN_LIBS"
+AC_CHECK_FUNCS([dladdr])
+LIBS="$save_LIBS"
case "$host_os" in
darwin*|mingw*)
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