Clean IgProf for GCC 7

Signed-off-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>

igprof-gcc7.patch

@@ -0,0 +1,48 @@
+diff --git a/src/buffer.cc b/src/buffer.cc
+index f12dcfd..40c74d1 100644
+--- a/src/buffer.cc
++++ b/src/buffer.cc
+@@ -62,12 +62,11 @@ IgProfBuffer::allocateRaw(size_t size)
+ 		    MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+   if (data != MAP_FAILED)
+     return data;
+-  else
+-  {
+-    igprof_debug("failed to allocate memory for profile buffer: %s (%d)\n",
+-                 strerror(errno), errno);
+-    igprof_abort();
+-  }
++  
++  igprof_debug("failed to allocate memory for profile buffer: %s (%d)\n",
++                strerror(errno), errno);
++  igprof_abort();
++  __builtin_unreachable();
+ }
+
+ void
+diff --git a/src/profile.cc b/src/profile.cc
+index 33f069c..35bca5a 100644
+--- a/src/profile.cc
++++ b/src/profile.cc
+@@ -29,7 +29,7 @@
+ #endif
+
+ // Global variables initialised once here.
+-HIDDEN void             (*igprof_abort)(void) __attribute__((noreturn)) = &abort;
++HIDDEN void             (*igprof_abort)(void) throw () = &abort;
+ HIDDEN char *           (*igprof_getenv)(const char *) = &getenv;
+ HIDDEN int              (*igprof_unsetenv)(const char *) = &unsetenv;
+ HIDDEN bool             s_igprof_activated = false;
+diff --git a/src/profile.h b/src/profile.h
+index 2a980d2..933f2f4 100644
+--- a/src/profile.h
++++ b/src/profile.h
+@@ -21,7 +21,7 @@ extern IgProfAtomic     s_igprof_enabled;
+ extern pthread_key_t    s_igprof_bufkey;
+ extern pthread_key_t    s_igprof_flagkey;
+ extern int              s_igprof_stderrOpen;
+-extern void             (*igprof_abort) (void) __attribute__((noreturn));
++extern void             (*igprof_abort) (void) throw ();
+ extern char *           (*igprof_getenv) (const char *);
+ extern int              (*igprof_unsetenv) (const char *);
+

igprof.spec

@@ -5,10 +5,13 @@
 %define git_commit c6882f4d8e39893d71466ea23da643dafb60a496
 Source0: git://github.com/%{git_repo}/igprof.git?obj=%{git_branch}/%{git_commit}&export=igprof-%{git_commit}&output=/igprof-%{git_commit}.tgz
 
+Patch0: igprof-gcc7
+
 Requires: pcre
 BuildRequires: cmake libunwind libatomic_ops
 %prep
 %setup -T -b 0 -n igprof-%{git_commit}
+%patch0 -p1
 
 %build
 mkdir -p %i