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API visibility support (GCC/SUNCC) (FSCORE-264)

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@12061 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris committed 2009-02-16 18:17:01 +00:00
1 parent 104c99ea85
commit ffe2ad4bbd
6 files changed
+175 -15
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libs/libteletone/configure.in
+76
View File
@@ -7,11 +7,16 @@ AC_CONFIG_AUX_DIR(build)
AM_INIT_AUTOMAKE(libteletone,0.1)
AC_CONFIG_SRCDIR([src])
# disable checks
m4_defun([_LT_AC_LANG_CXX_CONFIG], [:])
m4_defun([_LT_AC_LANG_F77_CONFIG], [:])
# Checks for programs.
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_LIBTOOL
AC_PROG_INSTALL
# Optimize
AC_ARG_ENABLE(optimization,
[AC_HELP_STRING([--enable-optimization],[Set if you want us to add max optimising compiler flags])],[enable_optimizer="$enableval"],[enable_optimizer="no"])
@@ -64,6 +69,77 @@ case "$host" in
new_AM_LDFLAGS=""
;;
esac
#
# gcc visibility cflag checks
#
AC_ARG_ENABLE([visibility],
[AS_HELP_STRING([--disable-visibility], [Disable or enable API visibility support (default: use if available)])],
[enable_visibility="${enableval}"],
[enable_visibility="detect"]
)
HAVE_VISIBILITY="no"
if test "x${enable_visibility}" != "xno" ; then
case "${ax_cv_c_compiler_vendor}" in
gnu)
save_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} -fvisibility=hidden"
AC_MSG_CHECKING([whether the compiler supports -fvisibility=hidden])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[int foo __attribute__ ((visibility("default")));],
[;]
)],
[AC_MSG_RESULT([yes])
new_AM_CFLAGS="${new_AM_CFLAGS} -fvisibility=hidden"
AC_DEFINE([HAVE_VISIBILITY], [1], [GCC visibility support available])
HAVE_VISIBILITY="yes"],
[AC_MSG_RESULT([no])]
)
CFLAGS="${save_CFLAGS}"
;;
sun)
save_CFLAGS="${CFLAGS}"
CFLAGS="${CFLAGS} -xldscope=hidden"
AC_MSG_CHECKING([whether the compiler supports -xldscope=hidden])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[int foo __attribute__ ((visibility("default")));],
[;]
)],
[AC_MSG_RESULT([yes])
new_AM_CFLAGS="${new_AM_CFLAGS} -xldscope=hidden"
AC_DEFINE([HAVE_VISIBILITY], [1], [SUNCC visibility support available])
HAVE_VISIBILITY="yes"],
[AC_MSG_RESULT([no])]
)
CFLAGS="${save_CFLAGS}"
;;
*)
if test "x${enable_visibility}" = "xyes" ; then
AC_MSG_ERROR([Non-GNU / SUN compilers are currently unsupported])
else
AC_MSG_WARN([Non-GNU / SUN compilers are currently unsupported])
fi
;;
esac
#
# visibility explicitly requested but not supported by this compiler => error
#
if test "x${enable_visibility}" = "xyes" -a "x${HAVE_VISIBILITY}" = "xno" ; then
AC_MSG_ERROR([API visibility not supported by this compiler])
fi
fi
AC_SUBST(new_AM_CFLAGS)
AC_SUBST(new_AM_LDFLAGS)