From 7cc2e8b349df28d55d5f40bfae323485df9f0cf2 Mon Sep 17 00:00:00 2001
From: Alessandro Ghedini <al3xbio@gmail.com>
Date: Fri, 16 Dec 2011 15:33:48 +0100
Subject: configure: add symbols versioning option

Allow, at configure time, the production of versioned symbols. The
symbols will look like "CURL_<FLAVOUR>_<VERSION> <SYMBOL>", where
<FLAVOUR> represents the SSL flavour (e.g. OPENSSL, GNUTLS, NSS, ...),
<VERSION> is the major SONAME version and <SYMBOL> is the actual symbol
name. If no SSL library is enabled the symbols will be just
"CURL_<VERSION> <SYMBOL>".
---
 lib/Makefile.am     |  6 +++++-
 lib/libcurl.vers.in | 13 +++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)
 create mode 100644 lib/libcurl.vers.in

(limited to 'lib')

diff --git a/lib/Makefile.am b/lib/Makefile.am
index f2e54db95..d764274fc 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -116,7 +116,11 @@ if MIMPURE
 MIMPURE = -mimpure-text
 endif
 
-libcurl_la_LDFLAGS = $(UNDEF) $(VERSIONINFO) $(MIMPURE) $(LIBCURL_LIBS)
+if VERSIONED_SYMBOLS
+VERSIONED_SYMBOLS = -Wl,--version-script=libcurl.vers
+endif
+
+libcurl_la_LDFLAGS = $(UNDEF) $(VERSIONINFO) $(MIMPURE) $(VERSIONED_SYMBOLS) $(LIBCURL_LIBS)
 
 # unit testing static library built only along with unit tests
 if BUILD_UNITTESTS
diff --git a/lib/libcurl.vers.in b/lib/libcurl.vers.in
new file mode 100644
index 000000000..8294557b8
--- /dev/null
+++ b/lib/libcurl.vers.in
@@ -0,0 +1,13 @@
+HIDDEN
+{
+  local:
+    __*;
+    _rest*;
+    _save*;
+};
+
+CURL_@VERSIONED_FLAVOUR@4
+{
+  global: curl_*;
+  local: *;
+};
-- 
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