From 327c4cdf7578debcc140f04f03d02479771c9e11 Mon Sep 17 00:00:00 2001 From: Doug VanLeuven Date: Fri, 14 Dec 2012 14:58:30 +0200 Subject: testzebra: pragma weak: detect systems with weak alias and provide alternative LLVM clang does not support #pragma weak (bug 3679) on OS X. There are other systems where the #pragma weak has varying syntax. Added m4 file from the autoconf archives: http://www.gnu.org/software/autoconf-archive/ax_sys_weak_alias.html Fix up zebra/*_null.c files to use #pragma weak alias or stub functions if not available. It's incomplete in that the different format #pragma enable easier fixes on need. Tested on 64bit OS X 10.7, FreeBSD 9.0 amd64 & i386 (32bit) using gcc & clang. Tested on linux 64bit. Signed-off-by: David Lamparter --- zebra/redistribute_null.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'zebra/redistribute_null.c') diff --git a/zebra/redistribute_null.c b/zebra/redistribute_null.c index e57a73b9..54198c8e 100644 --- a/zebra/redistribute_null.c +++ b/zebra/redistribute_null.c @@ -6,21 +6,50 @@ void zebra_redistribute_add (int a, struct zserv *b, int c) { return; } +#ifdef HAVE_SYS_WEAK_ALIAS_PRAGMA #pragma weak zebra_redistribute_delete = zebra_redistribute_add #pragma weak zebra_redistribute_default_add = zebra_redistribute_add #pragma weak zebra_redistribute_default_delete = zebra_redistribute_add +#else +void zebra_redistribute_delete (int a, struct zserv *b, int c) +{ return; } +void zebra_redistribute_default_add (int a, struct zserv *b, int c) +{ return; } +void zebra_redistribute_default_delete (int a, struct zserv *b, int c) +{ return; } +#endif void redistribute_add (struct prefix *a, struct rib *b) { return; } +#ifdef HAVE_SYS_WEAK_ALIAS_PRAGMA #pragma weak redistribute_delete = redistribute_add +#else +void redistribute_delete (struct prefix *a, struct rib *b) +{ return; } +#endif void zebra_interface_up_update (struct interface *a) { return; } +#ifdef HAVE_SYS_WEAK_ALIAS_PRAGMA #pragma weak zebra_interface_down_update = zebra_interface_up_update #pragma weak zebra_interface_add_update = zebra_interface_up_update #pragma weak zebra_interface_delete_update = zebra_interface_up_update +#else +void zebra_interface_down_update (struct interface *a) +{ return; } +void zebra_interface_add_update (struct interface *a) +{ return; } +void zebra_interface_delete_update (struct interface *a) +{ return; } +#endif void zebra_interface_address_add_update (struct interface *a, struct connected *b) { return; } +#ifdef HAVE_SYS_WEAK_ALIAS_PRAGMA #pragma weak zebra_interface_address_delete_update = zebra_interface_address_add_update +#else +void zebra_interface_address_delete_update (struct interface *a, + struct connected *b) +{ return; } +#endif -- cgit v1.2.1