configure: check for pragma init/fini for constructors/destructors

Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>

diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index 8dcf9783b6294d2f15d0086bf07db89f30ab38eb..dcf5f31fc92828ac2eb2f0ac52dea69c6e0ab377 100644 (file)
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -140,6 +140,32 @@ int main(void) {
     return 0;
 }" HAVE_DESTRUCTOR_ATTRIBUTE)
 
+check_c_source_compiles("
+#pragma init (test_constructor)
+void test_constructor(void);
+
+void test_constructor(void)
+{
+     return;
+}
+
+int main(void) {
+     return 0;
+}" HAVE_PRAGMA_INIT)
+
+check_c_source_compiles("
+#pragma fini (test_destructor)
+void test_destructor(void);
+
+void test_destructor(void)
+{
+    return;
+}
+
+int main(void) {
+    return 0;
+}" HAVE_PRAGMA_FINI)
+
 check_c_source_compiles("
 void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
 

diff --git a/config.h.cmake b/config.h.cmake
index 01a54f3a12cf194c110d4bad131158a8df4ce8bd..80208aa688eed3ca4f03709b91366d258d1acd35 100644 (file)
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -40,6 +40,8 @@
 #cmakedefine HAVE_GCC_ATOMIC_BUILTINS 1
 #cmakedefine HAVE_CONSTRUCTOR_ATTRIBUTE 1
 #cmakedefine HAVE_DESTRUCTOR_ATTRIBUTE 1
+#cmakedefine HAVE_PRAGMA_INIT 1
+#cmakedefine HAVE_PRAGMA_FINI 1
 #cmakedefine HAVE_FUNCTION_ATTRIBUTE_FORMAT 1
 
 /*************************** ENDIAN *****************************/