diff --git a/pjlib-util/src/pjlib-util-test/main.c b/pjlib-util/src/pjlib-util-test/main.c
index 7178b09..5b5a8ec 100644
--- a/pjlib-util/src/pjlib-util-test/main.c
+++ b/pjlib-util/src/pjlib-util-test/main.c
@@ -33,7 +33,7 @@ static void init_signals()
     sigaction(SIGALRM, &act, NULL);
 }
 
-#elif PJ_LINUX || PJ_DARWINOS
+#elif (PJ_LINUX && defined(__GLIBC__)) || PJ_DARWINOS
 
 #include <execinfo.h>
 #include <signal.h>
diff --git a/pjlib/src/pjlib-test/main.c b/pjlib/src/pjlib-test/main.c
index caebfa8..d3ca1b1 100644
--- a/pjlib/src/pjlib-test/main.c
+++ b/pjlib/src/pjlib-test/main.c
@@ -54,7 +54,7 @@ static void init_signals()
     sigaction(SIGALRM, &act, NULL);
 }
 
-#elif PJ_LINUX || PJ_DARWINOS
+#elif (PJ_LINUX && defined(__GLIBC__)) || PJ_DARWINOS
 
 #include <execinfo.h>
 #include <signal.h>
diff --git a/pjmedia/src/test/main.c b/pjmedia/src/test/main.c
index fc91756..4ad230e 100644
--- a/pjmedia/src/test/main.c
+++ b/pjmedia/src/test/main.c
@@ -32,7 +32,7 @@
 #endif
 
 
-#if PJ_LINUX || PJ_DARWINOS
+#if (PJ_LINUX && defined(__GLIBC__)) || PJ_DARWINOS
 
 #include <execinfo.h>
 #include <signal.h>
diff --git a/pjnath/src/pjnath-test/main.c b/pjnath/src/pjnath-test/main.c
index fffdc4f..78a64ab 100644
--- a/pjnath/src/pjnath-test/main.c
+++ b/pjnath/src/pjnath-test/main.c
@@ -32,7 +32,7 @@ static void init_signals()
     sigaction(SIGALRM, &act, NULL);
 }
 
-#elif PJ_LINUX || PJ_DARWINOS
+#elif (PJ_LINUX && defined(__GLIBC__)) || PJ_DARWINOS
 
 #include <execinfo.h>
 #include <signal.h>
diff --git a/pjsip-apps/src/pjsua/main.c b/pjsip-apps/src/pjsua/main.c
index 5396ff0..4fe8dfc 100644
--- a/pjsip-apps/src/pjsua/main.c
+++ b/pjsip-apps/src/pjsua/main.c
@@ -80,7 +80,7 @@ static void setup_signal_handler(void)
     SetConsoleCtrlHandler(&CtrlHandler, TRUE);
 }
 
-#elif PJ_LINUX || PJ_DARWINOS
+#elif (PJ_LINUX && defined(__GLIBC__)) || PJ_DARWINOS
 
 #include <execinfo.h>
 #include <signal.h>
diff --git a/pjsip/src/test/main.c b/pjsip/src/test/main.c
index 914c592..ff594ab 100644
--- a/pjsip/src/test/main.c
+++ b/pjsip/src/test/main.c
@@ -33,7 +33,7 @@ static void usage()
     puts(" -l,--log-level N    Set log level (0-6)");
 }
 
-#if PJ_LINUX || PJ_DARWINOS
+#if (PJ_LINUX && defined(__GLIBC__)) || PJ_DARWINOS
 
 #include <execinfo.h>
 #include <signal.h>