gentoo-overlay/app-crypt/tpm2-tss-engine/files/tpm2-tss-engine-1.1.0-tests-Allow-compilation-under-musl.patch

https://bugs.gentoo.org/833531
--- a/configure.ac
+++ b/configure.ac
@@ -174,6 +174,8 @@ AC_ARG_WITH([device],
             [with_device_set=no])
 AM_CONDITIONAL([TESTDEVICE],[test "x$with_device_set" = xyes])
 
+AC_CHECK_FUNC([backtrace_symbols_fd],[AC_DEFINE([HAVE_EXECINFO],[1], ['Define to 1 if you have the <execinfo.h> header file.'])])
+
 # Integration test with simulator
 AS_IF([test "x$enable_integration" = xyes && test "x$with_device_set" = xno],
       [integration_args=""
--- a/test/error_tpm2-tss-engine-common.c
+++ b/test/error_tpm2-tss-engine-common.c
@@ -7,7 +7,9 @@
 #include "tpm2-tss-engine.h"
 #include "tpm2-tss-engine-common.h"
 
+#ifdef HAVE_EXECINFO
 #include <execinfo.h>
+#endif
 #include <stdio.h>
 #include <unistd.h>
 #include <setjmp.h>
@@ -17,8 +19,10 @@ TSS2_RC
 __wrap_Esys_Initialize()
 {
     printf("Esys_Initialize called\n");
+#ifdef HAVE_EXECINFO
     void* b[128];
     backtrace_symbols_fd(b, backtrace(b, sizeof(b)/sizeof(b[0])), STDOUT_FILENO);
+#endif
     return -1;
 }