X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=acinclude.m4;h=8228d392f3d7a0da00bab86ec8c689faef302ecf;hb=a7e88b8b38cf2fb2db322c0ab89438b141f888d0;hp=3cff28226989e6287a97b19fe7ec74249b6a7767;hpb=4eb08e662ae5077202899aff6dc94e37cd7646b6;p=rrdtool.git

diff --git a/acinclude.m4 b/acinclude.m4
index 3cff282..8228d39 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -19,7 +19,7 @@ AC_DEFUN([EX_CHECK_ALL],
  EX_CHECK_STATE=NO
  ex_check_save_LIBS=${LIBS}
  ex_check_save_CPPFLAGS=${CPPFLAGS}
- ex_check_save_LDFLAGS=${LDPFLAGS}
+ ex_check_save_LDFLAGS=${LDFLAGS}
  if test "x$7" != "x"; then
    CPPFLAGS="$CPPFLAGS -I$7"
  fi
@@ -289,6 +289,12 @@ if test "x$acx_pthread_ok" = xyes; then
         case "${host_cpu}-${host_os}" in
             *-aix* | *-freebsd* | *-darwin*) x_rflag="-D_THREAD_SAFE";;
             *solaris* | *-osf* | *-hpux*) x_rflag="-D_REENTRANT";;
+            *-linux*)
+            if test x"$PTHREAD_CFLAGS" = "x-pthread"; then
+                # For Linux/gcc "-pthread" implies "-lpthread". We need, however, to make this explicit
+                # in PTHREAD_LIBS such that a shared library to be built properly depends on libpthread.
+                PTHREAD_LIBS="-lpthread $PTHREAD_LIBS"
+            fi;;
         esac
         AC_MSG_RESULT(${x_rflag})
         if test "x$x_rflag" != xno; then