From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 9 May 2011 13:07:20 +0000 (+0200)
Subject: set visibility of functions explicitly to avoid name clashes
X-Git-Tag: v197~24^2~3
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=fe0fc11bacc3e00023e45b04b9ee788ed161c4b8

set visibility of functions explicitly to avoid name clashes
---

diff --git a/configure.ac b/configure.ac
index dcf88155f..6f4dfaf13 100644
--- a/configure.ac
+++ b/configure.ac
@@ -44,7 +44,7 @@ AC_PROG_MAKE_SET
 
 # GCC flags
 
-DESIRED_FLAGS="-Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wpointer-arith -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter -ffast-math"
+DESIRED_FLAGS="-Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wpointer-arith -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter -ffast-math -fvisibility=hidden -fdiagnostics-show-option"
 
 for flag in $DESIRED_FLAGS ; do
   CC_CHECK_CFLAGS([$flag], [CFLAGS="$CFLAGS $flag"])
diff --git a/netlink.h b/netlink.h
index e6ad59bf4..4f0024851 100644
--- a/netlink.h
+++ b/netlink.h
@@ -34,7 +34,10 @@ struct address {
         int ifindex;
 };
 
-int netlink_acquire_addresses(struct address **_list, unsigned *_n_list);
+#define _public_ __attribute__ ((visibility("default")))
+#define _hidden_ __attribute__ ((visibility("hidden")))
+
+int netlink_acquire_addresses(struct address **_list, unsigned *_n_list) _hidden_;
 
 static inline size_t PROTO_ADDRESS_SIZE(int proto) {
         assert(proto == AF_INET || proto == AF_INET6);
diff --git a/nss-myhostname.c b/nss-myhostname.c
index b091fba35..293166c49 100644
--- a/nss-myhostname.c
+++ b/nss-myhostname.c
@@ -50,7 +50,7 @@ enum nss_status _nss_myhostname_gethostbyname4_r(
                 struct gaih_addrtuple **pat,
                 char *buffer, size_t buflen,
                 int *errnop, int *h_errnop,
-                int32_t *ttlp);
+                int32_t *ttlp) _public_;
 
 enum nss_status _nss_myhostname_gethostbyname3_r(
                 const char *name,
@@ -59,20 +59,20 @@ enum nss_status _nss_myhostname_gethostbyname3_r(
                 char *buffer, size_t buflen,
                 int *errnop, int *h_errnop,
                 int32_t *ttlp,
-                char **canonp);
+                char **canonp) _public_;
 
 enum nss_status _nss_myhostname_gethostbyname2_r(
                 const char *name,
                 int af,
                 struct hostent *host,
                 char *buffer, size_t buflen,
-                int *errnop, int *h_errnop);
+                int *errnop, int *h_errnop) _public_;
 
 enum nss_status _nss_myhostname_gethostbyname_r(
                 const char *name,
                 struct hostent *host,
                 char *buffer, size_t buflen,
-                int *errnop, int *h_errnop);
+                int *errnop, int *h_errnop) _public_;
 
 enum nss_status _nss_myhostname_gethostbyaddr2_r(
                 const void* addr, socklen_t len,
@@ -80,14 +80,14 @@ enum nss_status _nss_myhostname_gethostbyaddr2_r(
                 struct hostent *host,
                 char *buffer, size_t buflen,
                 int *errnop, int *h_errnop,
-                int32_t *ttlp);
+                int32_t *ttlp) _public_;
 
 enum nss_status _nss_myhostname_gethostbyaddr_r(
                 const void* addr, socklen_t len,
                 int af,
                 struct hostent *host,
                 char *buffer, size_t buflen,
-                int *errnop, int *h_errnop);
+                int *errnop, int *h_errnop) _public_;
 
 enum nss_status _nss_myhostname_gethostbyname4_r(
                 const char *name,