ham/svxlink: Patched for gcc >= 6.x.

Added -fpermissive to the CXXFLAGS

Signed-off-by: Matteo Bernardini <ponce@slackbuilds.org>

ham/svxlink/gcc6.patch

@@ -0,0 +1,23 @@
+From 611cc5cc134f710f94fc8987375259bd8af34604 Mon Sep 17 00:00:00 2001
+From: Tobias Blomberg <git@sm0svx.shacknet.nu>
+Date: Mon, 19 Jun 2017 22:04:20 +0200
+Subject: [PATCH] Fix compilation problem in Async::AudioDeviceAlsa
+
+- On newer compilers the compilation would fail on ambiguous call to abs
+---
+ src/async/audio/AsyncAudioDeviceAlsa.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/async/audio/AsyncAudioDeviceAlsa.cpp b/src/async/audio/AsyncAudioDeviceAlsa.cpp
+index 17d255e8..15d760d5 100644
+--- a/src/async/audio/AsyncAudioDeviceAlsa.cpp
++++ b/src/async/audio/AsyncAudioDeviceAlsa.cpp
+@@ -548,7 +548,7 @@ bool AudioDeviceAlsa::initParams(snd_pcm_t *pcm_handle)
+     return false;
+   }
+ 
+-  if (::abs(real_rate - sample_rate) > 100)
++  if (::abs(static_cast<int>(real_rate) - sample_rate) > 100)
+   {
+     cerr << "*** ERROR: The sample rate could not be set to "
+          << sample_rate << "Hz for ALSA device \"" << dev_name << "\". "

ham/svxlink/svxlink.SlackBuild

@@ -107,12 +107,15 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+# From upstream
+patch -p2 < $CWD/gcc6.patch
+
 mkdir -p build
 cd build
   cmake \
     $BUILD_QTEL \
     -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
-    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS -fpermissive" \
     -DCMAKE_INSTALL_PREFIX=/usr \
     -DSYSCONF_INSTALL_DIR=/etc \
     -DLOCAL_STATE_DIR=/var \