[Buildroot] [PATCH 2/3] package/libest: needs OpenSSL engines

[Bernd Kuhls <bernd@kuhls.net>]

Fixes build error:

In file included from client.c:14:
client.c: In function 'JNI_OnLoad':
./../../src/est/est.h:834:10: error: implicit declaration of function 'ERR_load_crypto_strings'; did you mean 'ERR_load_CRYPTO_strings'? [-Wimplicit-function-declaration]
  834 |     do { ERR_load_crypto_strings();      \
      |          ^~~~~~~~~~~~~~~~~~~~~~~
client.c:88:9: note: in expansion of macro 'est_apps_startup'
   88 |         est_apps_startup();
      |         ^~~~~~~~~~~~~~~~
./../../src/est/est.h:836:10: error: implicit declaration of function 'ENGINE_load_builtin_engines' [-Wimplicit-function-declaration]
  836 |          ENGINE_load_builtin_engines();  \
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~
client.c:88:9: note: in expansion of macro 'est_apps_startup'
   88 |         est_apps_startup();
      |         ^~~~~~~~~~~~~~~~
client.c: In function 'JNI_OnUnload':
./../../src/est/est.h:860:40: error: implicit declaration of function 'ENGINE_cleanup'; did you mean 'EVP_PBE_cleanup'? [-Wimplicit-function-declaration]
  860 |          OBJ_cleanup(); EVP_cleanup(); ENGINE_cleanup(); \
      |                                        ^~~~~~~~~~~~~~
client.c:101:9: note: in expansion of macro 'est_apps_shutdown'
  101 |         est_apps_shutdown();
      |         ^~~~~~~~~~~~~~~~~
./../../src/est/est.h:862:10: error: implicit declaration of function 'ERR_free_strings'; did you mean 'ERR_load_EC_strings'? [-Wimplicit-function-declaration]
  862 |          ERR_free_strings(); } while (0)
      |          ^~~~~~~~~~~~~~~~
client.c:101:9: note: in expansion of macro 'est_apps_shutdown'
  101 |         est_apps_shutdown();
      |         ^~~~~~~~~~~~~~~~~
client.c: In function 'est_client_raise_exception':
client.c:122:17: error: implicit declaration of function 'ERR_print_errors_fp' [-Wimplicit-function-declaration]
  122 |                 ERR_print_errors_fp(stderr);
      |                 ^~~~~~~~~~~~~~~~~~~

seen with this defconfig

BR2_PACKAGE_OPENJDK=y
BR2_PACKAGE_LIBEST=y

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
---
Series passed Gitlab pipelines:
https://gitlab.com/bkuhls/buildroot/-/commit/bdbdbd0557ae43c5cc6f186ee93a01eb7610c1b5

 package/libest/Config.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/libest/Config.in b/package/libest/Config.in
index bd5f40afae..3a0328c2f8 100644
--- a/package/libest/Config.in
+++ b/package/libest/Config.in
@@ -5,6 +5,7 @@ config BR2_PACKAGE_LIBEST
 	bool "libest"
 	depends on !BR2_STATIC_LIBS # libexecinfo or glibc
 	select BR2_PACKAGE_LIBEXECINFO if !BR2_TOOLCHAIN_USES_GLIBC
+	select BR2_PACKAGE_LIBOPENSSL_ENGINES
 	select BR2_PACKAGE_OPENSSL
 	select BR2_PACKAGE_OPENSSL_FORCE_LIBOPENSSL
 	select BR2_PACKAGE_SAFECLIB
-- 
2.47.3

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