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BuildSystem: Enable dladdr on non-Linux platforms like FreeBSD.

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ASTERISK-27641

Change-Id: I587e8ba0123c70fc10cfd8b0ac3299551f61d84b
This commit is contained in:
Alexander Traud
2018-03-09 09:44:23 +01:00
parent ffdc5c6398
commit 36c8885c66
2 changed files with 52 additions and 0 deletions
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35
configure vendored
View File

@@ -19444,6 +19444,41 @@ rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=${old_LIBS}
# re-check without -ldl
# Non-Linux platforms like FreeBSD and NetBSD do not need a library libdl.so.
if test "${PBX_DLADDR}" = "0"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dladdr in dlfcn.h without -ldl" >&5
$as_echo_n "checking for dladdr in dlfcn.h without -ldl... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#define _GNU_SOURCE 1
#include <dlfcn.h>
int
main ()
{
dladdr((void *)0, (void *)0)
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
PBX_DLADDR=1
$as_echo "#define HAVE_DLADDR 1" >>confdefs.h
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
fi
# PKGCONFIG is used in later tests

17
configure.ac
View File

@@ -1449,6 +1449,23 @@ AC_LINK_IFELSE(
)
LIBS=${old_LIBS}
# re-check without -ldl
# Non-Linux platforms like FreeBSD and NetBSD do not need a library libdl.so.
if test "${PBX_DLADDR}" = "0"; then
AC_MSG_CHECKING(for dladdr in dlfcn.h without -ldl)
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([#define _GNU_SOURCE 1
#include <dlfcn.h>],
[dladdr((void *)0, (void *)0)]
)],
AC_MSG_RESULT(yes)
PBX_DLADDR=1
AC_SUBST([PBX_DLADDR])
AC_DEFINE([HAVE_DLADDR], 1, [Define to 1 if your system has the dladdr() GNU extension]),
AC_MSG_RESULT(no)
)
fi
# PKGCONFIG is used in later tests
PKG_PROG_PKG_CONFIG()