From 2d99cf07618d240c265aaf6795df3ef3b8ea7ceb Mon Sep 17 00:00:00 2001
From: Andrew <akirillo@uk.ibm.com>
Date: Mon, 3 Nov 2025 13:53:00 +0000
Subject: [PATCH] lib: fix gssapi.h include on IBMi

Fixes #19336
Closes #19337
---
 lib/config-os400.h | 3 +++
 lib/urldata.h      | 6 +++++-
 lib/vauth/vauth.h  | 6 +++++-
 lib/version.c      | 6 +++++-
 4 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/lib/config-os400.h b/lib/config-os400.h
index bccdb4a897..b08400fe97 100644
--- a/lib/config-os400.h
+++ b/lib/config-os400.h
@@ -102,6 +102,9 @@
 /* Define if you have GSS API. */
 #define HAVE_GSSAPI
 
+/* Define if you have the <gssapi.h> header file. */
+#define HAVE_GSSAPI_H
+
 /* Define if you have the GNU gssapi libraries */
 #undef HAVE_GSSGNU
 
diff --git a/lib/urldata.h b/lib/urldata.h
index f79ccca0ac..f92bfcb3b2 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -191,7 +191,11 @@ typedef CURLcode (Curl_recv)(struct Curl_easy *data,   /* transfer */
 # ifdef HAVE_GSSGNU
 #  include <gss.h>
 # else
-#  include <gssapi/gssapi.h>
+#  ifdef HAVE_GSSAPI_H
+#   include <gssapi.h>
+#  else
+#   include <gssapi/gssapi.h>
+#  endif
 # endif
 #endif
 
diff --git a/lib/vauth/vauth.h b/lib/vauth/vauth.h
index 2ba8e471dc..51b9f41c1b 100644
--- a/lib/vauth/vauth.h
+++ b/lib/vauth/vauth.h
@@ -237,7 +237,11 @@ CURLcode Curl_auth_create_xoauth_bearer_message(const char *user,
 # ifdef HAVE_GSSGNU
 #  include <gss.h>
 # else
-#  include <gssapi/gssapi.h>
+#  ifdef HAVE_GSSAPI_H
+#   include <gssapi.h>
+#  else
+#   include <gssapi/gssapi.h>
+#  endif
 # endif
 #endif
 
diff --git a/lib/version.c b/lib/version.c
index 4c7e5712f0..f02b92fedf 100644
--- a/lib/version.c
+++ b/lib/version.c
@@ -81,7 +81,11 @@
 # ifdef HAVE_GSSGNU
 #  include <gss.h>
 # else
-#  include <gssapi/gssapi.h>
+#  ifdef HAVE_GSSAPI_H
+#   include <gssapi.h>
+#  else
+#   include <gssapi/gssapi.h>
+#  endif
 # endif
 #endif