Add configure option --disable-libdl.

This makes it possible to build full static binary.
This commit is contained in:
Qi Wang 2018-06-07 12:27:19 -07:00 committed by Qi Wang
parent 8e9a613122
commit 1f55a15467
2 changed files with 34 additions and 8 deletions

View File

@ -269,6 +269,11 @@ any of the following arguments (not a definitive list) to 'configure':
in the same process, which will almost certainly result in confusing runtime
crashes if pointers leak from one implementation to the other.
* `--disable-libdl`
Disable the usage of libdl, namely dlsym(3) which is required by the lazy
lock option. This can allow building static binaries.
The following environment variables (not a definitive list) impact configure's
behavior:

View File

@ -1587,6 +1587,21 @@ if test "x${LG_PAGE}" != "xundefined" -a \
fi
AC_DEFINE_UNQUOTED([LG_HUGEPAGE], [${je_cv_lg_hugepage}])
dnl ============================================================================
dnl Enable libdl by default.
AC_ARG_ENABLE([libdl],
[AS_HELP_STRING([--disable-libdl],
[Do not use libdl])],
[if test "x$enable_libdl" = "xno" ; then
enable_libdl="0"
else
enable_libdl="1"
fi
],
[enable_libdl="1"]
)
AC_SUBST([libdl])
dnl ============================================================================
dnl Configure pthreads.
@ -1600,15 +1615,21 @@ if test "x$abi" != "xpecoff" ; then
AC_MSG_ERROR([libpthread is missing]))])
wrap_syms="${wrap_syms} pthread_create"
have_pthread="1"
dnl Check if we have dlsym support.
have_dlsym="1"
AC_CHECK_HEADERS([dlfcn.h],
AC_CHECK_FUNC([dlsym], [],
[AC_CHECK_LIB([dl], [dlsym], [LIBS="$LIBS -ldl"], [have_dlsym="0"])]),
[have_dlsym="0"])
if test "x$have_dlsym" = "x1" ; then
AC_DEFINE([JEMALLOC_HAVE_DLSYM], [ ])
dnl Check if we have dlsym support.
if test "x$enable_libdl" = "x1" ; then
have_dlsym="1"
AC_CHECK_HEADERS([dlfcn.h],
AC_CHECK_FUNC([dlsym], [],
[AC_CHECK_LIB([dl], [dlsym], [LIBS="$LIBS -ldl"], [have_dlsym="0"])]),
[have_dlsym="0"])
if test "x$have_dlsym" = "x1" ; then
AC_DEFINE([JEMALLOC_HAVE_DLSYM], [ ])
fi
else
have_dlsym="0"
fi
JE_COMPILABLE([pthread_atfork(3)], [
#include <pthread.h>
], [