fix(ipmitool): Add OpenSSL 3 MD2 header check for SLES 15/Leap 15

OpenSSL 3.x removed <openssl/md2.h> but keeps MD2_Init as a
deprecated shim in libcrypto. Add AC_CHECK_HEADER([openssl/md2.h])
inside the existing AC_CHECK_LIB block so HAVE_CRYPTO_MD2 is only
defined when both the function and header are available.

ipmitool/0017-openssl3-disable-md2-without-header.patch

@@ -0,0 +1,16 @@
+--- ipmitool-1.8.18.orig/configure.ac	2026-05-11 11:35:37
++++ ipmitool-1.8.18/configure.ac	2026-05-11 11:36:20
+@@ -184,9 +184,12 @@
+ 	[if test "x$xenable_internal_md5" != "xyes"; then
+ 	    if test "x$have_crypto" != "xyes" && test "x$have_md5" != "xyes"; then
+ 	        LIBS="$LIBS -lcrypto"
+-	        have_md2=yes
+ 	    fi
+-	    AC_DEFINE(HAVE_CRYPTO_MD2, [1], [Define to 1 if libcrypto supports MD2.])
++	    AC_CHECK_HEADER([openssl/md2.h],
++	        [have_md2=yes
++	         AC_DEFINE(HAVE_CRYPTO_MD2, [1],
++	            [Define to 1 if libcrypto supports MD2.])],
++	        [have_md2=no])
+ 	fi],
+ 	[], [-lcrypto])

ipmitool/ipmitool.spec

@@ -25,6 +25,8 @@ Patch14:      0014-lanplus-cipher-retry.patch
 Patch15:      0015-lanplus-Cleanup.-Refix-6dec83ff-fix-be2c0c4b.patch
 Patch16:      0016-el10-gcc14-missing-intf-getters.patch
 
+Patch17:      0017-openssl3-disable-md2-without-header.patch
+
 Patch80:      ipmitool-%{version}-saneretry.patch
 Patch82:      ipmitool-%{version}-rflash.patch
 Patch83:      ipmitool-%{version}-signal.patch
@@ -75,6 +77,7 @@ fi
 %patch14  -p1
 %patch15  -p1
 %patch16  -p1
+%patch17  -p1
 %patch80 -p1
 %patch82 -p1
 %patch83 -p1