Make it compatible with debian packaged versions

Signed-off-by: falkTX <falktx@falktx.com>

plugins/ProM/DistrhoUIProM.cpp

@@ -14,7 +14,14 @@
  * For a full copy of the license see the LICENSE file.
  */
 
+/* s/private/public/ as workaround old projectM versions */
+#define private public
 #include "libprojectM/projectM.hpp"
+#undef private
+
+#ifndef PROJECTM_DATA_DIR
+#include "libprojectM/projectM-opengl.h"
+#endif
 
 #include "DistrhoPluginProM.hpp"
 #include "DistrhoUIProM.hpp"
@@ -253,6 +260,7 @@ bool DistrhoUIProM::onKeyboard(const KeyboardEvent& ev)
     if (fPM == nullptr)
         return false;
 
+#ifdef HAVE_PROJECTM_TEXT_FUNCTIONS
     // special handling for text
     if (fPM->isTextInputActive(true) && !ev.press)
     {
@@ -269,6 +277,7 @@ bool DistrhoUIProM::onKeyboard(const KeyboardEvent& ev)
             return true;
         }
     }
+#endif
 
     projectMKeycode pmKey = PROJECTM_K_NONE;
 
@@ -304,12 +313,14 @@ bool DistrhoUIProM::onKeyboard(const KeyboardEvent& ev)
         case '\r':
             pmKey = PROJECTM_K_RETURN;
             break;
+#ifdef HAVE_PROJECTM_TEXT_FUNCTIONS
         case '/':
             pmKey = PROJECTM_K_SLASH;
             break;
         case '\\':
             pmKey = PROJECTM_K_BACKSLASH;
             break;
+#endif
         case '+':
             pmKey = PROJECTM_K_PLUS;
             break;

plugins/ProM/Makefile

@@ -116,9 +116,16 @@ BASE_FLAGS += -DPROJECTM_DATA_DIR='"$(shell pkg-config --variable=pkgdatadir lib
 BASE_FLAGS += $(shell pkg-config --cflags libprojectM)
 LINK_FLAGS += $(shell pkg-config --libs libprojectM)
 
+ifeq ($(shell pkg-config --atleast-version=3.1.8 libprojectM && echo true),true)
+BASE_FLAGS += -DHAVE_PROJECTM_TEXT_FUNCTIONS
+endif
+
 else # HAVE_PROJECTM
 
-# compiler macros
+# custom macros for ProM
+BASE_FLAGS += -DHAVE_PROJECTM_TEXT_FUNCTIONS
+
+# compiler macros from projectM
 BASE_FLAGS += -DUSE_TEXT_MENU=1
 BASE_FLAGS += -DUSE_THREADS=1
 # GLES stuff