diff --git a/.github/workflows/build-cmake-conan.yml b/.github/workflows/build-cmake-conan.yml
index e331e00a9..e5e807913 100644
--- a/.github/workflows/build-cmake-conan.yml
+++ b/.github/workflows/build-cmake-conan.yml
@@ -27,7 +27,7 @@ jobs:
             platform: 'gl3'
             gl3_gfxlib: 'glfw'
             audio: 'openal'
-#          - os: 'ubuntu-latest'
+#          - os: 'ubuntu-18.04'
 #            platform: 'gl3'
 #            gl3_gfxlib: 'sdl2'
 #            audio: 'openal'
@@ -63,8 +63,9 @@ jobs:
           python -m pip install conan
           conan config init
           conan config set log.print_run_commands=True
-          conan remote add bincrafters https://api.bintray.com/conan/bincrafters/public-conan
-          conan remote add madebr_ps2dev https://api.bintray.com/conan/madebr/ps2dev
+          conan config set general.revisions_enabled=1
+          conan remote add bincrafters https://bincrafters.jfrog.io/artifactory/api/conan/public-conan
+#          conan remote add madebr_ps2dev https://api.bintray.com/conan/madebr/ps2dev
       - name: "Add os=playstation2 + gcc.version=3.2 to .conan/settings.yml"
         shell: python
         run: |
diff --git a/printHash.sh b/printHash.sh
index e7d6f0189..213d9353c 100755
--- a/printHash.sh
+++ b/printHash.sh
@@ -1,12 +1,14 @@
-#!/usr/bin/env bash
-
-> $1
-
-echo -n "#define GIT_SHA1 \"" > $1
-
-if (command -v "git" >/dev/null) then
-git rev-parse --short HEAD | tr -d '\n' >> $1
+#!/usr/bin/env sh
+if [ -z "${1}" ]
+ then
+  printf "%s\n" "Input the path to the file for writing the commit hash to."
+ else
+  printf "%s" "#define GIT_SHA1 \"" > $1
+
+  if (command -v "git" >/dev/null) then
+   git rev-parse --short HEAD | tr -d '\n' >> $1
+  fi
+
+  printf "%s\n" "\"" >> $1
+  printf "%s\n" "const char* g_GIT_SHA1 = GIT_SHA1;" >> $1
 fi
-
-echo "\"" >> $1
-echo "const char* g_GIT_SHA1 = GIT_SHA1;" >> $1
\ No newline at end of file
diff --git a/src/audio/sampman_null.cpp b/src/audio/sampman_null.cpp
index a5ed2889e..af4c54ad2 100644
--- a/src/audio/sampman_null.cpp
+++ b/src/audio/sampman_null.cpp
@@ -114,7 +114,7 @@ cSampleManager::SetMusicMasterVolume(uint8 nVolume)
 }
 
 void
-cSampleManager::SetMusicMasterVolume(uint8 nVolume)
+cSampleManager::SetMP3BoostVolume(uint8 nVolume)
 {
 }
 
@@ -231,35 +231,35 @@ cSampleManager::InitialiseChannel(uint32 nChannel, uint32 nSfx, uint8 nBank)
 void
 cSampleManager::SetChannelEmittingVolume(uint32 nChannel, uint32 nVolume)
 {
-	ASSERT( nChannel != CHANNEL2D );
+	ASSERT( nChannel < MAXCHANNELS );
 	ASSERT( nChannel < MAXCHANNELS+MAX2DCHANNELS );
 }
 
 void
 cSampleManager::SetChannel3DPosition(uint32 nChannel, float fX, float fY, float fZ)
 {
-	ASSERT( nChannel != CHANNEL2D );
+	ASSERT( nChannel < MAXCHANNELS );
 	ASSERT( nChannel < MAXCHANNELS+MAX2DCHANNELS );
 }
 
 void
 cSampleManager::SetChannel3DDistances(uint32 nChannel, float fMax, float fMin)
 {
-	ASSERT( nChannel != CHANNEL2D );
+	ASSERT( nChannel < MAXCHANNELS );
 	ASSERT( nChannel < MAXCHANNELS+MAX2DCHANNELS );
 }
 
 void
 cSampleManager::SetChannelVolume(uint32 nChannel, uint32 nVolume)
 {
-	ASSERT( nChannel == CHANNEL2D );
+	ASSERT( nChannel >= MAXCHANNELS );
 	ASSERT( nChannel < MAXCHANNELS+MAX2DCHANNELS );
 }
 
 void
 cSampleManager::SetChannelPan(uint32 nChannel, uint32 nPan)
 {
-	ASSERT(nChannel == CHANNEL2D);
+	ASSERT( nChannel >= MAXCHANNELS );
 	ASSERT( nChannel < MAXCHANNELS+MAX2DCHANNELS );
 }
 
diff --git a/src/core/CdStreamPosix.cpp b/src/core/CdStreamPosix.cpp
index 30fe06a0d..bc9129eb5 100644
--- a/src/core/CdStreamPosix.cpp
+++ b/src/core/CdStreamPosix.cpp
@@ -13,6 +13,7 @@
 #include <fcntl.h>
 #include <sys/resource.h>
 #include <stdarg.h>
+#include <limits.h>
 
 #ifdef __linux__
 #include <sys/syscall.h>
diff --git a/src/skel/crossplatform.h b/src/skel/crossplatform.h
index 24c3fb4d6..a073f8541 100644
--- a/src/skel/crossplatform.h
+++ b/src/skel/crossplatform.h
@@ -1,4 +1,5 @@
 #include <time.h>
+#include <limits.h>
 
 // This is the common include for platform/renderer specific skeletons(glfw.cpp, win.cpp etc.) and using cross platform things (like Windows directories wrapper, platform specific global arrays etc.) 
 // Functions that's different on glfw and win but have same signature, should be located on platform.h.