include: fix SND_DLSYM_BUILD_VERSION() for static build

Correct the dlsym_name string for nested macros. See Fixes:.

Fixes: https://github.com/alsa-project/alsa-lib/issues/316
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/include/global.h b/include/global.h
index 71a1b12fa682d3596006ecf5401ef2cd307e5c7e..dfe9bc2b54bf020b35f5f61f57bca3957d04f1b5 100644 (file)
--- a/include/global.h
+++ b/include/global.h
@@ -71,6 +71,11 @@ struct snd_dlsym_link {
 
 extern struct snd_dlsym_link *snd_dlsym_start;
 
+#ifndef __STRING
+/** \brief Return 'x' argument as string */
+#define __STRING(x)     #x
+#endif
+
 /** \hideinitializer \brief Helper macro for #SND_DLSYM_BUILD_VERSION. */
 #define __SND_DLSYM_VERSION(prefix, name, version) _ ## prefix ## name ## version
 /**
@@ -82,18 +87,13 @@ extern struct snd_dlsym_link *snd_dlsym_start;
   void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) __attribute__ ((constructor)); \
   void __SND_DLSYM_VERSION(snd_dlsym_constructor_, name, version) (void) { \
     __SND_DLSYM_VERSION(snd_dlsym_, name, version).next = snd_dlsym_start; \
-    __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_name = # name; \
+    __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_name = __STRING(name); \
     __SND_DLSYM_VERSION(snd_dlsym_, name, version).dlsym_ptr = (void *)&name; \
     snd_dlsym_start = &__SND_DLSYM_VERSION(snd_dlsym_, name, version); \
   }
 
 #endif
 
-#ifndef __STRING
-/** \brief Return 'x' argument as string */
-#define __STRING(x)     #x
-#endif
-
 /** \brief Returns the version of a dynamic symbol as a string. */
 #define SND_DLSYM_VERSION(version) __STRING(version)