[Buildroot] [PATCH 1/1] package/tpm2-tools: Fix build with OpenSSL 4.1

[Buildroot] [PATCH 1/1] package/tpm2-tools: Fix build with OpenSSL 4.1

[Bernd Kuhls]

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
---
Gitlab pipelines passed:
https://gitlab.com/bkuhls/buildroot/-/commits/7e4374fc0ca7f1bae9e902c3cbfd6397d3b6f5d3

 ...1-lib-object.h-include-openssl-err.h.patch | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 package/tpm2-tools/0001-lib-object.h-include-openssl-err.h.patch

diff --git a/package/tpm2-tools/0001-lib-object.h-include-openssl-err.h.patch b/package/tpm2-tools/0001-lib-object.h-include-openssl-err.h.patch
new file mode 100644
index 0000000000..01d722ed67
--- /dev/null
+++ b/package/tpm2-tools/0001-lib-object.h-include-openssl-err.h.patch
@@ -0,0 +1,39 @@
+From 8ed8318d146598cb1c189f051ce7196daf1bb424 Mon Sep 17 00:00:00 2001
+From: Bernd Kuhls <bernd@kuhls.net>
+Date: Sat, 12 Sep 2026 13:22:13 +0200
+Subject: [PATCH] lib/object.h: include openssl/err.h
+
+Fixes build error with OpenSSL 4.1.0-alpha1:
+
+lib/object.c: In function 'PEM_read_bio_TSSPRIVKEY_OBJ':
+lib/object.c:28:1: error: implicit declaration of function 'ERR_raise' [-Wimplicit-function-declaration]
+   28 | IMPLEMENT_PEM_read_bio(TSSPRIVKEY_OBJ, TSSPRIVKEY_OBJ, TSSPRIVKEY_OBJ_PEM_STRING,
+
+lib/object.c:28:1: error: 'ERR_LIB_PEM' undeclared (first use in this function)
+   28 | IMPLEMENT_PEM_read_bio(TSSPRIVKEY_OBJ, TSSPRIVKEY_OBJ, TSSPRIVKEY_OBJ_PEM_STRING,
+
+lib/object.c:28:1: error: 'ERR_R_ASN1_LIB' undeclared (first use in this function)
+   28 | IMPLEMENT_PEM_read_bio(TSSPRIVKEY_OBJ, TSSPRIVKEY_OBJ, TSSPRIVKEY_OBJ_PEM_STRING,
+
+Upstream: https://github.com/tpm2-software/tpm2-tools/commit/c2b2c4e5cdc5bbc61779eb4271d5c317efb8c067
+
+Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
+---
+ lib/object.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/lib/object.h b/lib/object.h
+index b48b55b3..2c4102fc 100644
+--- a/lib/object.h
++++ b/lib/object.h
+@@ -6,6 +6,7 @@
+ #include "tpm2_util.h"
+ 
+ #include <openssl/pem.h>
++#include <openssl/err.h>
+ #include <openssl/bio.h>
+ #include <openssl/asn1.h>
+ #include <openssl/asn1t.h>
+-- 
+2.47.3
+
-- 
2.47.3

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Re: [Buildroot] [PATCH 1/1] package/tpm2-tools: Fix build with OpenSSL 4.1

[Thomas Petazzoni via buildroot]

On Sun, Oct 25, 2026 at 08:49:52PM +0100, Bernd Kuhls wrote:
> Signed-off-by: Bernd Kuhls <bernd@kuhls.net>

Applied to master, thanks!

Best regards,

Thomas Petazzoni
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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