Remove support for OpenSSL older than 1.0.2

Fixes #584

Author: mtrojnar

NEWS

@@ -3,6 +3,7 @@ NEWS for Libp11 -- History of user visible changes
 New in 0.4.14; unreleased
 * Added support for the "pkcs11prov" provider with OpenSSL 3.0
   (Małgorzata Olszówka)
+* Removed support for OpenSSL older than 1.0.2 (Michał Trojnara)
 
 New in 0.4.13; 2024-12-13; Michał Trojnara
 * Increased maximum PIN length (Michał Trojnara)

configure.ac

@@ -232,9 +232,9 @@ fi
 
 PKG_CHECK_MODULES(
 	[OPENSSL],
-	[libcrypto >= 1.0.0],
+	[libcrypto >= 1.0.2],
 	,
-	[AC_MSG_ERROR([libcrypto >= 1.0.0 is required])]
+	[AC_MSG_ERROR([libcrypto >= 1.0.2 is required])]
 )
 
 AC_CHECK_FUNCS([ X509_get0_notAfter X509_get0_notBefore ])

testall.sh

@@ -51,7 +51,7 @@ test ! -f Makefile || make distclean
 for pkg_config_libdir in /opt/openssl-[0-9]*/lib*/pkgconfig /usr/local/ssl-[0-9]*/lib*/pkgconfig; do
     test -d "$pkg_config_libdir" || continue
     openssl_version=$(echo "$pkg_config_libdir" | sed 's/.*ssl-\([0-9.]*\).*/\1/')
-    awk -v "ver=$openssl_version" 'BEGIN {exit !(ver >= "1.0.0")}' || continue
+    awk -v "ver=$openssl_version" 'BEGIN {exit !(ver >= "1.0.2")}' || continue
     testone "$pkg_config_libdir"
 done