package/ola: fix autoreconf issue for host-ola

CXX variable is overwritten with an empy value when
host-autoconf-archive package has been installed before
host-ola.

config.log:
configure:19965:  -o conftest -O2 [snip -I and -L] conftest.cpp  -ldl

Fixes:
http://autobuild.buildroot.net/results/8fa/8fa0a64422a96023a926412a033d9a4f01af5a71/build-end.log

Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Romain Naour 2015-05-02 02:14:51 +02:00 committed by Peter Korsgaard
parent 9776b9cc70
commit 884af65fd5

View File

@ -0,0 +1,51 @@
From 991eef9f84a5ef58eaab8ea0a85f3b4bce7b00a3 Mon Sep 17 00:00:00 2001
From: Romain Naour <romain.naour@openwide.fr>
Date: Sat, 2 May 2015 01:50:14 +0200
Subject: [PATCH] autotools: don't overwrite CC and CXX with ACX_PTHREAD
success
If ACX_PTHREAD sucess, CC and CXX value are overwriten respectively
to PTHREAD_CC and PTHREAD_CXX. But ACX_PTHREAD has been hacked to
set PTHREAD_CXX variable for the C++ compiler and configure.ac has
been modified accordingly.
If ax_pthread.m4 wich provide standard AX_PTHREAD macro (and it's
alias ACX_PTHREAD and AX_PTHREAD), is installed on the system by
autoconf-archive package, then ax_pthread.m4 is used during
autoreconf instread of acx_pthread.m4 bundled with ola.
AX_PTHREAD macro from ax_pthread.m4 check only the thread support
with the C compiler. As a result, the C++ compiler variable
PTHREAD_CXX is not initialized, so CXX become empy and the build
fail during resolv.h check.
configure:19945: checking for 2-arg pthread_setname_np
configure:19965: -o conftest -O2 [snip -I and -L] conftest.cpp -ldl >&5
./configure: line 2037: -o: command not found
In the Buildroot use case, it's safe to remove CC and CXX overwrite
since only gcc/g++ compiler are used.
Signed-off-by: Romain Naour <romain.naour@openwide.fr>
---
configure.ac | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/configure.ac b/configure.ac
index b1946b6..ef85af5 100644
--- a/configure.ac
+++ b/configure.ac
@@ -303,9 +303,7 @@ AM_CONDITIONAL([HAVE_NCURSES], [test "x$have_ncurses" = xyes])
ACX_PTHREAD([
LIBS="$PTHREAD_LIBS $LIBS"
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
- CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"
- CC="$PTHREAD_CC"
- CXX="$PTHREAD_CXX"],
+ CXXFLAGS="$CXXFLAGS $PTHREAD_CXXFLAGS"],
[AC_MSG_ERROR([Missing pthread, please install it])])
# pthread_setname_np can take either 1 or 2 arguments.
--
1.9.3