configure: try pthread_create without -lpthread

For libc variants without a spearate pthread lib (like bionic), try
using pthreads without the pthreads lib first and only if that fails try
the -lpthread linker flag.

Bug: http://curl.haxx.se/bug/view.cgi?id=1216
Reported by: Duncan
This commit is contained in:
Daniel Stenberg 2013-04-11 16:21:49 +02:00
parent 61d259f950
commit edddf394b8
1 changed files with 20 additions and 8 deletions

View File

@ -3158,14 +3158,26 @@ if test "$want_thres" = "yes"; then
AC_CHECK_HEADER(pthread.h,
[ AC_DEFINE(HAVE_PTHREAD_H, 1, [if you have <pthread.h>])
save_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -pthread"
AC_CHECK_LIB(pthread, pthread_create,
[ AC_MSG_NOTICE([using POSIX threaded DNS lookup])
AC_DEFINE(USE_THREADS_POSIX, 1, [if you want POSIX threaded DNS lookup])
USE_THREADS_POSIX=1
curl_res_msg="threaded"
],
[ CFLAGS="$save_CFLAGS"])
dnl first check for function without lib
AC_CHECK_FUNC(pthread_create, [USE_THREADS_POSIX=1] )
dnl if it wasn't found without lib, search for it in pthread lib
if test "$USE_THREADS_POSIX" != "1"
then
CFLAGS="$CFLAGS -pthread"
AC_CHECK_LIB(pthread, pthread_create,
[USE_THREADS_POSIX=1],
[ CFLAGS="$save_CFLAGS"])
fi
if test "x$USE_THREADS_POSIX" = "x1"
then
AC_DEFINE(USE_THREADS_POSIX, 1, [if you want POSIX threaded DNS lookup])
curl_res_msg="POSIX threaded"
fi
])
fi