* configure.in (XCFLAGS): use -fvisibility=hidden if possible.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28709 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

14 files changed, 115 insertions, 0 deletions

diff --git a/include/ruby/defines.h b/include/ruby/defines.h
index 7bb2788aaf..45b19bdc58 100644
--- a/include/ruby/defines.h
+++ b/include/ruby/defines.h
@@ -49,6 +49,10 @@ extern "C" {
 #define ANYARGS
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 #define xmalloc ruby_xmalloc
 #define xmalloc2 ruby_xmalloc2
 #define xcalloc ruby_xcalloc
@@ -311,6 +315,10 @@ void rb_ia64_flushrs(void);
     RUBY_ALIAS_FUNCTION_TYPE(VALUE, prot, name, args)
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/encoding.h b/include/ruby/encoding.h
index 88f5e52101..2527427b1b 100644
--- a/include/ruby/encoding.h
+++ b/include/ruby/encoding.h
@@ -22,6 +22,10 @@ extern "C" {
 #include <stdarg.h>
 #include "ruby/oniguruma.h"
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 #define ENCODING_INLINE_MAX 1023
 #define ENCODING_SHIFT (FL_USHIFT+10)
 #define ENCODING_MASK (((VALUE)ENCODING_INLINE_MAX)<<ENCODING_SHIFT)
@@ -312,6 +316,10 @@ void rb_econv_binmode(rb_econv_t *ec);
 #define ECONV_AFTER_OUTPUT                      0x00020000
 /* end of flags for rb_econv_convert */
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/intern.h b/include/ruby/intern.h
index 98a194d2a6..46b4fe7752 100644
--- a/include/ruby/intern.h
+++ b/include/ruby/intern.h
@@ -28,6 +28,10 @@ extern "C" {
 #endif
 #include "ruby/st.h"
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 /*
  * Functions and variables that are used by more than one source file of
  * the kernel.
@@ -841,6 +845,10 @@ VALUE rb_time_succ(VALUE);
 void rb_frame_pop(void);
 int rb_frame_method_id_and_class(ID *idp, VALUE *klassp);
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/io.h b/include/ruby/io.h
index f0f83fc329..ba166f8c9a 100644
--- a/include/ruby/io.h
+++ b/include/ruby/io.h
@@ -27,6 +27,10 @@ extern "C" {
 #include <stdio_ext.h>
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 typedef struct rb_io_t {
     int fd;                     /* file descriptor */
     FILE *stdio_file;		/* stdio ptr for read/write if available */
@@ -165,6 +169,10 @@ void rb_io_read_check(rb_io_t*);
 int rb_io_read_pending(rb_io_t*);
 DEPRECATED(void rb_read_check(FILE*));
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/missing.h b/include/ruby/missing.h
index 5b147de6db..f4a5556ddf 100644
--- a/include/ruby/missing.h
+++ b/include/ruby/missing.h
@@ -49,6 +49,10 @@ struct timezone {
 #define RUBY_EXTERN extern
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 #ifndef HAVE_ACOSH
 RUBY_EXTERN double acosh(double);
 RUBY_EXTERN double asinh(double);
@@ -169,6 +173,10 @@ RUBY_EXTERN int signbit(double x);
 RUBY_EXTERN int ffs(int);
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/oniguruma.h b/include/ruby/oniguruma.h
index 41628ed4af..2674b010e7 100644
--- a/include/ruby/oniguruma.h
+++ b/include/ruby/oniguruma.h
@@ -97,6 +97,10 @@ extern "C" {
 #define ONIG_EXTERN   extern
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 /* PART: character encoding */
 
 #ifndef ONIG_ESCAPE_UCHAR_COLLISION
@@ -789,6 +793,10 @@ const char* onig_version P_((void));
 ONIG_EXTERN
 const char* onig_copyright P_((void));
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #ifdef __cplusplus
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/re.h b/include/ruby/re.h
index c60ab96016..4039ba1800 100644
--- a/include/ruby/re.h
+++ b/include/ruby/re.h
@@ -24,6 +24,10 @@ extern "C" {
 
 #include "ruby/regex.h"
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 typedef struct re_pattern_buffer Regexp;
 
 struct rmatch_offset {
@@ -55,6 +59,11 @@ VALUE rb_reg_regsub(VALUE, VALUE, struct re_registers *, VALUE);
 long rb_reg_adjust_startpos(VALUE, VALUE, long, int);
 void rb_match_busy(VALUE);
 VALUE rb_reg_quote(VALUE);
+regex_t *rb_reg_prepare_re(VALUE re, VALUE str);
+
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
 
 #if defined(__cplusplus)
 #if 0
diff --git a/include/ruby/regex.h b/include/ruby/regex.h
index a63e2f6a4c..aeb6418d0a 100644
--- a/include/ruby/regex.h
+++ b/include/ruby/regex.h
@@ -24,6 +24,10 @@ extern "C" {
 #include "oniguruma.h"
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 #ifndef ONIG_RUBY_M17N
 
 ONIG_EXTERN OnigEncoding    OnigEncDefaultCharEncoding;
@@ -32,6 +36,10 @@ ONIG_EXTERN OnigEncoding    OnigEncDefaultCharEncoding;
 
 #endif /* ifndef ONIG_RUBY_M17N */
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index 936493c028..c01d617ba3 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -73,6 +73,10 @@ extern "C" {
 
 #include "defines.h"
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 #if defined(HAVE_ALLOCA_H)
 #include <alloca.h>
 #else
@@ -1447,6 +1451,10 @@ int ruby_vsnprintf(char *str, size_t n, char const *fmt, va_list ap);
 #define close ruby_close
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/st.h b/include/ruby/st.h
index 27e47b816c..53e82618f1 100644
--- a/include/ruby/st.h
+++ b/include/ruby/st.h
@@ -33,6 +33,10 @@ extern "C" {
 # include <inttypes.h>
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 #if SIZEOF_LONG == SIZEOF_VOIDP
 typedef unsigned long st_data_t;
 #elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
@@ -125,6 +129,10 @@ st_index_t st_hash_end(st_index_t h);
 st_index_t st_hash_start(st_index_t h);
 #define st_hash_start(h) ((st_index_t)(h))
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/util.h b/include/ruby/util.h
index 0c1e1c4ebc..ee8e726572 100644
--- a/include/ruby/util.h
+++ b/include/ruby/util.h
@@ -40,6 +40,10 @@ extern "C" {
 #endif
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 #define scan_oct(s,l,e) (int)ruby_scan_oct(s,l,e)
 unsigned long ruby_scan_oct(const char *, size_t, size_t *);
 #define scan_hex(s,l,e) (int)ruby_scan_hex(s,l,e)
@@ -80,6 +84,10 @@ double ruby_strtod(const char *, char **);
 
 void ruby_each_words(const char *, void (*)(const char*, int, void*), void *);
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/version.h b/include/ruby/version.h
index 32b09b3f52..101b5d9c63 100644
--- a/include/ruby/version.h
+++ b/include/ruby/version.h
@@ -36,6 +36,11 @@ extern "C" {
 } /* satisfy cc-mode */
 #endif
 #endif
+
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 /*
  * Interfaces from extension libraries.
  *
@@ -50,6 +55,11 @@ RUBY_EXTERN const int  ruby_patchlevel;
 RUBY_EXTERN const char ruby_description[];
 RUBY_EXTERN const char ruby_copyright[];
 RUBY_EXTERN const char ruby_engine[];
+
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/vm.h b/include/ruby/vm.h
index ac8e599e90..072d7d6f19 100644
--- a/include/ruby/vm.h
+++ b/include/ruby/vm.h
@@ -19,6 +19,10 @@ extern "C" {
 #endif
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 /* Place holder.
  *
  * We will prepare VM creation/control APIs on 1.9.2 or later.
@@ -32,6 +36,10 @@ typedef struct rb_vm_struct ruby_vm_t;
 /* core API */
 int ruby_vm_destruct(ruby_vm_t *vm);
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */
diff --git a/include/ruby/win32.h b/include/ruby/win32.h
index 47a85270a5..b9299883bc 100644
--- a/include/ruby/win32.h
+++ b/include/ruby/win32.h
@@ -8,6 +8,10 @@ extern "C" {
 #endif
 #endif
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility push(default)
+#endif
+
 /*
  *  Copyright (c) 1993, Intergraph Corporation
  *
@@ -662,6 +666,10 @@ in asynchronous_func_t.
 typedef uintptr_t (*asynchronous_func_t)(uintptr_t self, int argc, uintptr_t* argv);
 uintptr_t rb_w32_asynchronize(asynchronous_func_t func, uintptr_t self, int argc, uintptr_t* argv, uintptr_t intrval);
 
+#if defined __GNUC__ && __GNUC__ >= 4
+#pragma GCC visibility pop
+#endif
+
 #if defined(__cplusplus)
 #if 0
 { /* satisfy cc-mode */