diff options
| author | Dan Fandrich <dan@coneharvesters.com> | 2006-07-11 21:35:35 +0000 |
|---|---|---|
| committer | Dan Fandrich <dan@coneharvesters.com> | 2006-07-11 21:35:35 +0000 |
| commit | 10489879f731465f3d2105870e7533c2b355af5d (patch) | |
| tree | 2a2050a14281dc1f3c96b70f5d4c9a0f596ad3f4 | |
| parent | fe22872d14c3b6b63ac27a9017ed9695ac3b932b (diff) | |
Enable --enable-hidden-symbols for SunPro C
| -rw-r--r-- | configure.ac | 21 | ||||
| -rw-r--r-- | include/curl/curl.h | 9 |
2 files changed, 22 insertions, 8 deletions
diff --git a/configure.ac b/configure.ac index c5486a387..55a442f31 100644 --- a/configure.ac +++ b/configure.ac @@ -1962,29 +1962,42 @@ AC_HELP_STRING([--disable-cookies],[Disable cookies support]), dnl ************************************************************ dnl Enable hiding of internal symbols in library to reduce its size and dnl speed dynamic linking of applications. This currently is only supported -dnl on gcc >= 4.0 +dnl on gcc >= 4.0 and SunPro C. dnl AC_MSG_CHECKING([whether to enable hidden symbols in the library]) AC_ARG_ENABLE(hidden-symbols, -AC_HELP_STRING([--enable-hidden-symbols],[Hide internal symbols in library (gcc>=4)]) +AC_HELP_STRING([--enable-hidden-symbols],[Hide internal symbols in library]) AC_HELP_STRING([--disable-hidden-symbols],[Leave all symbols with default visibility in library]), [ case "$enableval" in no) AC_MSG_RESULT(no) ;; *) + AC_MSG_CHECKING([whether $CC supports it]) if test "$GCC" = yes ; then - AC_MSG_CHECKING([whether $CC supports it]) if $CC --help --verbose 2>&1 | grep fvisibility= > /dev/null ; then AC_MSG_RESULT(yes) AC_DEFINE(CURL_HIDDEN_SYMBOLS, 1, [to enable hidden symbols]) AC_SUBST(CURL_HIDDEN_SYMBOLS) + AC_DEFINE(CURL_EXTERN_SYMBOL, [__attribute__ ((visibility ("default")))], [to make a symbol visible]) + AC_SUBST(CURL_EXTERN_SYMBOL) CFLAGS="$CFLAGS -fvisibility=hidden" else AC_MSG_RESULT(no) fi + else - AC_MSG_RESULT([no (not gcc)]) + dnl Test for SunPro cc + if $CC 2>&1 | grep flags >/dev/null && $CC -flags | grep xldscope= >/dev/null ; then + AC_MSG_RESULT(yes) + AC_DEFINE(CURL_HIDDEN_SYMBOLS, 1, [to enable hidden symbols]) + AC_SUBST(CURL_HIDDEN_SYMBOLS) + AC_DEFINE(CURL_EXTERN_SYMBOL, [__global], [to make a symbol visible]) + AC_SUBST(CURL_EXTERN_SYMBOL) + CFLAGS="$CFLAGS -xldscope=hidden" + else + AC_MSG_RESULT(no) + fi fi ;; esac ], diff --git a/include/curl/curl.h b/include/curl/curl.h index 1a118a36c..b9b341dee 100644 --- a/include/curl/curl.h +++ b/include/curl/curl.h @@ -61,11 +61,12 @@ extern "C" { #ifdef CURL_HIDDEN_SYMBOLS /* - * On gcc >= 4 if -fvisibility=hidden is given then this is used to cause - * external definitions to be put into the shared library. It makes no - * difference to applications whether this is set or not, only the library. + * This definition is used to make external definitions visibile in the + * shared library when symbols are hidden by default. It makes no + * difference when compiling applications whether this is set or not, + * only when compiling the library. */ -#define CURL_EXTERN __attribute__ ((visibility ("default"))) +#define CURL_EXTERN CURL_EXTERN_SYMBOL #else #define CURL_EXTERN #endif |