BIND 10 trac1999, updated. 794b0e2aa6cea30584b28b88ac760e49be678774 [trac1999] handle the gtest build from source for pthreads

[BIND 10 source code commits]

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       via  794b0e2aa6cea30584b28b88ac760e49be678774 (commit)
      from  8fccdf262f5d23181ca5697ad4bdef35650768db (commit)

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- Log -----------------------------------------------------------------
commit 794b0e2aa6cea30584b28b88ac760e49be678774
Author: Jeremy C. Reed <jreed at ISC.org>
Date:   Wed Jul 11 18:04:19 2012 -0500

    [trac1999] handle the gtest build from source for pthreads
    
    When built from source it uses GTEST_HAS_PTHREAD.
    See $GTEST_SOURCE/include/gtest/internal/gtest-port.h
    which defines it for solaris, linux, hpux (which BIND 10 doesn't know yet).

-----------------------------------------------------------------------

Summary of changes:
 configure.ac |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

-----------------------------------------------------------------------
diff --git a/configure.ac b/configure.ac
index c35d22d..b9c525a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -827,13 +827,11 @@ GTEST_LDFLAGS=
 GTEST_LDADD=
 # TODO: set DISTCHECK_GTEST_CONFIGURE_FLAG for --with-gtest too
 DISTCHECK_GTEST_CONFIGURE_FLAG=
+
 if test "x$enable_gtest" = "xyes" ; then
 
 	if test -n "$with_gtest_source" ; then
 
-# TODO: actually need to check if needs pthread
-GTEST_LDADD="$GTEST_LDADD $PTHREAD_LDFLAGS"
-
           if test "x$GTEST_SOURCE" = "xyes" ; then
 
             AC_MSG_CHECKING([for gtest source])
@@ -859,6 +857,13 @@ GTEST_LDADD="$GTEST_LDADD $PTHREAD_LDFLAGS"
 	  GTEST_LDFLAGS="\$(top_builddir)/libgtest.a"
           DISTCHECK_GTEST_CONFIGURE_FLAG="--with-gtest-source=$GTEST_SOURCE"
           GTEST_INCLUDES="-I$GTEST_SOURCE -I$GTEST_SOURCE/include"
+          # See $GTEST_SOURCE/include/gtest/internal/gtest-port.h
+          # about GTEST_HAS_PTHREAD.
+          case "$host" in
+            *-solaris*|*-linux*|*-hpux*)
+                GTEST_LDADD="$GTEST_LDADD $PTHREAD_LDFLAGS"
+                ;;
+          esac
         fi
 
   if test "$gtest_path" != "no" ; then