Commit 10489879 authored by Dan Fandrich's avatar Dan Fandrich
Browse files

Enable --enable-hidden-symbols for SunPro C

parent fe22872d

configure.ac

+17 −4
Original line number Diff line number Diff line
@@ -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)

       ;;

  *)   

       if test "$GCC" = yes ; then

       AC_MSG_CHECKING([whether $CC supports it])

       if test "$GCC" = yes ; then

         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 ],

include/curl/curl.h

+5 −4
Original line number Diff line number Diff line
@@ -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