mumble: fix SEGV on musl.

Closes: #7509 [via git-merge-pr]

srcpkgs/mumble/patches/musl-dlsym.patch

@@ -0,0 +1,30 @@
+--- overlay_gl/overlay.c
++++ overlay_gl/overlay.c
+@@ -690,19 +690,24 @@ static void initializeLibrary() {
+		int nchains = 0;
+		ElfW(Sym) *symtab = NULL;
+		const char *strtab = NULL;
++#ifdef __GLIBC__
++		const ElfW(Addr) base = 0;
++#else
++		const ElfW(Addr) base = lm->l_addr;
++#endif
+
+		ElfW(Dyn) *dyn = lm->l_ld;
+
+		while (dyn->d_tag) {
+			switch (dyn->d_tag) {
+				case DT_HASH:
+-					nchains = *(int *)(dyn->d_un.d_ptr + 4);
++					nchains = *(int *)(base + dyn->d_un.d_ptr + 4);
+					break;
+				case DT_STRTAB:
+-					strtab = (const char *) dyn->d_un.d_ptr;
++					strtab = (const char *)(base + dyn->d_un.d_ptr);
+					break;
+				case DT_SYMTAB:
+-					symtab = (ElfW(Sym) *) dyn->d_un.d_ptr;
++					symtab = (ElfW(Sym) *)(base + dyn->d_un.d_ptr);
+					break;
+			}
+			dyn ++;

srcpkgs/mumble/template

@@ -1,7 +1,7 @@
 # Template file for 'mumble'
 pkgname=mumble
 version=1.2.19
-revision=4
+revision=5
 hostmakedepends="pkg-config qt-host-tools qt-qmake protobuf Ice"
 makedepends="
  libcap-devel Ice-devel protobuf-devel libXi-devel qt-devel libressl-devel