From: Andreas Öman <andreas@lonelycoder.com>
Date: Tue, 4 Jan 2011 20:34:02 +0000 (+0100)
Subject: Check for execinfo.h before use
X-Git-Tag: 2.99~122
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=641269999afe679f5c83058be83821755588998b;p=thirdparty%2Ftvheadend.git

Check for execinfo.h before use
---

diff --git a/configure b/configure
index f70c0c976..455637927 100755
--- a/configure
+++ b/configure
@@ -110,6 +110,19 @@ if checkccarg "-msse2"; then
    enable sse2
 fi
 
+check_header_c() {
+    cat >$TMPDIR/1.c <<EOF
+#include <$1>
+int main() {
+ return 0;
+}
+EOF
+    $CC 2>/dev/null $TMPDIR/1.c -o $TMPDIR/1.bin
+}
+
+check_header_c "execinfo.h" && enable execinfo
+
+
 echo >>${CONFIG_MAK} $CC_CONFIG_MAK 
 
 #
diff --git a/src/trap.c b/src/trap.c
index 0908bd4bb..13c2d8f4b 100644
--- a/src/trap.c
+++ b/src/trap.c
@@ -30,7 +30,9 @@ char tvh_binshasum[20];
 #include <string.h>
 #include <signal.h>
 #include <ucontext.h>
+#if ENABLE_EXECINFO
 #include <execinfo.h>
+#endif
 #include <stdio.h>
 #include <stdarg.h>
 
@@ -64,9 +66,11 @@ static void
 traphandler(int sig, siginfo_t *si, void *UC)
 {
   ucontext_t *uc = UC;
+#if ENABLE_EXECINFO
   static void *frames[MAXFRAMES];
   int nframes = backtrace(frames, MAXFRAMES);
   Dl_info dli;
+#endif
   int i;
   const char *reason = NULL;
 
@@ -102,6 +106,7 @@ traphandler(int sig, siginfo_t *si, void *UC)
   }
   tvhlog_spawn(LOG_ALERT, "CRASH", "%s", tmpbuf);
 
+#if ENABLE_EXECINFO
   tvhlog_spawn(LOG_ALERT, "CRASH", "STACKTRACE");
 
   for(i = 0; i < nframes; i++) {
@@ -128,6 +133,7 @@ traphandler(int sig, siginfo_t *si, void *UC)
       tvhlog_spawn(LOG_ALERT, "CRASH", "%p", frames[i]);
     }
   }
+#endif
 }
 
 
diff --git a/support/configure.inc b/support/configure.inc
index d93c38507..bf821f7bf 100644
--- a/support/configure.inc
+++ b/support/configure.inc
@@ -26,6 +26,7 @@ CONFIG_LIST="
  sse2
  linuxdvb
  v4l
+ execinfo
 "
 
 die() {