cmake/cmake-3.20.4-glibc_libdl.patch

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diff -up cmake-3.20.4/Source/kwsys/testDynamicLoader.cxx.libdl cmake-3.20.4/Source/kwsys/testDynamicLoader.cxx
--- cmake-3.20.4/Source/kwsys/testDynamicLoader.cxx.libdl 2021-06-14 10:05:49.000000000 -0500
+++ cmake-3.20.4/Source/kwsys/testDynamicLoader.cxx 2021-06-18 14:17:50.990852438 -0500
@@ -8,6 +8,13 @@
# include <be/kernel/OS.h> /* disable_debugger() API. */
#endif
+#ifdef __linux__
+#include <gnu/lib-names.h>
+#ifndef LIBDL_SO
+#define LIBDL_SO "libdl.so.2"
+#endif
+#endif
+
// Work-around CMake dependency scanning limitation. This must
// duplicate the above list of headers.
#if 0
@@ -107,8 +114,8 @@ int testDynamicLoader(int argc, char* ar
// This one is actually fun to test, since dlopen is by default
// loaded...wonder why :)
res += TestDynamicLoader("foobar.lib", "dlopen", 0, 1, 0);
- res += TestDynamicLoader("libdl.so", "dlopen", 1, 1, 1);
- res += TestDynamicLoader("libdl.so", "TestDynamicLoader", 1, 0, 1);
+ res += TestDynamicLoader(LIBDL_SO, "dlopen", 1, 1, 1);
+ res += TestDynamicLoader(LIBDL_SO, "TestDynamicLoader", 1, 0, 1);
#endif
// Now try on the generated library
std::string libname = GetLibName(KWSYS_NAMESPACE_STRING "TestDynload");