Refactor: move library functions and macros to own header

src/modules/gpu.c

@@ -61,9 +61,9 @@ static void printGPUList(FFinstance* instance, const FFlist* list)
 }
 
 #ifdef FF_HAVE_LIBPCI
+#include "common/library.h"
 #include <string.h>
 #include <unistd.h>
-#include <dlfcn.h>
 #include <pci/pci.h>
 
 //see https://github.com/pciutils/pciutils/blob/5bdf63b6b1bc35b59c4b3f47f7ca83ca1868155b/ls-kernel.c#L220

src/modules/opencl.c

@@ -4,7 +4,7 @@
 #define FF_OPENCL_NUM_FORMAT_ARGS 3
 
 #ifdef FF_HAVE_OPENCL
-#include <dlfcn.h>
+#include "common/library.h"
 
 #define CL_TARGET_OPENCL_VERSION 100
 #include <CL/cl.h>

src/modules/opengl.c

@@ -7,7 +7,7 @@
 
 #if defined(FF_HAVE_EGL) || defined(FF_HAVE_GLX) || defined(FF_HAVE_OSMESA)
 #define FF_HAVE_GL 1
-#include <dlfcn.h>
+#include "common/library.h"
 #include <GL/gl.h>
 
 #define FF_OPENGL_BUFFER_WIDTH 1

src/modules/packages.c

@@ -130,7 +130,7 @@ static uint32_t getNixPackages(char* path)
 }
 
 #ifdef FF_HAVE_RPM
-#include <dlfcn.h>
+#include "common/library.h"
 #include <rpm/rpmlib.h>
 #include <rpm/rpmts.h>
 #include <rpm/rpmdb.h>