Tweak opensslconf.h.in for style

Reviewed-by: NRichard Levitte <levitte@openssl.org>

include/openssl/evp.h

@@ -58,18 +58,9 @@
 #ifndef HEADER_ENVELOPE_H
 # define HEADER_ENVELOPE_H
 
-# ifdef OPENSSL_ALGORITHM_DEFINES
-#  include <openssl/opensslconf.h>
-# else
-#  define OPENSSL_ALGORITHM_DEFINES
-#  include <openssl/opensslconf.h>
-#  undef OPENSSL_ALGORITHM_DEFINES
-# endif
-
+# include <openssl/opensslconf.h>
 # include <openssl/ossl_typ.h>
-
 # include <openssl/symhacks.h>
-
 # include <openssl/bio.h>
 
 # define EVP_MAX_MD_SIZE                 64/* longest known is SHA512 */

include/openssl/opensslconf.h.in

-{- join("\n",map { "/* $_ */" } @autowarntext) -}
+/*
+ * {- join("\n * ", @autowarntext) -}
+ */
 
 #ifdef  __cplusplus
 extern "C" {
 #endif
-/* OpenSSL was configured with the following options: */
-{-
-    if (@{$config{openssl_sys_defines}}) {
+
+#ifdef OPENSSL_ALGORITHM_DEFINES
+# error OPENSSL_ALGORITHM_DEFINES no longer supported
+#endif
+
+/*
+ * OpenSSL was configured with the following options:
+ */
+
+{- if (@{$config{openssl_sys_defines}}) {
       foreach (@{$config{openssl_sys_defines}}) {
 	$OUT .= "#ifndef $_\n";
 	$OUT .= "# define $_ 1\n";
 	$OUT .= "#endif\n";
       }
     }
-    "";
--}
-#ifndef OPENSSL_DOING_MAKEDEPEND
-
-{-
     if (@{$config{openssl_experimental_defines}}) {
       foreach (@{$config{openssl_experimental_defines}}) {
 	(my $ex = $_) =~ s/_NO_/_EXPERIMENTAL_/;
-	$OUT .= "#ifndef $ex\n";
-	$OUT .= "# ifndef $_\n";
-	$OUT .= "#  define $_\n";
+	$OUT .= "# ifndef $ex\n";
+	$OUT .= "#  ifndef $_\n";
+	$OUT .= "#   define $_\n";
+	$OUT .= "#  endif\n";
 	$OUT .= "# endif\n";
-	$OUT .= "#endif\n";
       }
     }
-    "";
--}
-{-
     foreach (@{$config{openssl_api_defines}}) {
         (my $macro, my $value) = $_ =~ /^(.*?)=(.*?)$/;
-        $OUT .= "#define OPENSSL_MIN_API $value\n";
+        $OUT .= "# define OPENSSL_MIN_API $value\n";
     }
--}
-{-
     if (@{$config{openssl_algorithm_defines}}) {
       foreach (@{$config{openssl_algorithm_defines}}) {
-	$OUT .= "#ifndef $_\n";
-	$OUT .= "# define $_\n";
-	$OUT .= "#endif\n";
+	$OUT .= "# ifndef $_\n";
+	$OUT .= "#  define $_\n";
+	$OUT .= "# endif\n";
       }
-    } else {
-      "   /* no ciphers excluded */\n";
     }
--}
+    if ($OUT) {
+        $OUT = <<"EOF";
+#ifndef OPENSSL_DOING_MAKEDEPEND
 
+$OUT
 #endif /* OPENSSL_DOING_MAKEDEPEND */
+EOF
+    }
+    "";
+-}
 
 {-
     if (@{$config{openssl_thread_defines}}) {
@@ -57,9 +61,6 @@ extern "C" {
 	$OUT .= "#endif\n";
       }
     }
-    "";
--}
-{-
     if (@{$config{openssl_other_defines}}) {
       foreach (@{$config{openssl_other_defines}}) {
 	$OUT .= "#ifndef $_\n";
@@ -70,26 +71,6 @@ extern "C" {
     "";
 -}
 
-/* The OPENSSL_NO_* macros are also defined as NO_* if the application
-   asks for it.  This is a transient feature that is provided for those
-   who haven't had the time to do the appropriate changes in their
-   applications.  */
-#ifdef OPENSSL_ALGORITHM_DEFINES
-{-
-    if (@{$config{openssl_algorithm_defines}}) {
-      foreach (@{$config{openssl_algorithm_defines}}) {
-	(my $ex = $_) =~ s/^OPENSSL_//;
-	$OUT .= "# if defined($_) \&\& !defined($ex)\n";
-	$OUT .= "#  define $ex\n";
-	$OUT .= "# endif\n";
-      }
-    }
-    "";
--}
-#endif
-
-{- $target{cpuid_obj} ne "mem_clr.o" ? "#define OPENSSL_CPUID_OBJ" : "" -}
-
 /*
  * Applications should use -DOPENSSL_API_COMPAT=<version> to suppress the
  * declarations of functions deprecated in or before <version>. Otherwise, they
@@ -105,12 +86,12 @@ extern "C" {
 #endif
 
 #ifndef OPENSSL_MIN_API
-#define OPENSSL_MIN_API 0
+# define OPENSSL_MIN_API 0
 #endif
 
 #if !defined(OPENSSL_API_COMPAT) || OPENSSL_API_COMPAT < OPENSSL_MIN_API
-#undef OPENSSL_API_COMPAT
-#define OPENSSL_API_COMPAT OPENSSL_MIN_API
+# undef OPENSSL_API_COMPAT
+# define OPENSSL_API_COMPAT OPENSSL_MIN_API
 #endif
 
 #if OPENSSL_API_COMPAT < 0x10100000L
@@ -131,36 +112,35 @@ extern "C" {
 # define DEPRECATEDIN_0_9_8(f)
 #endif
 
+{- $target{cpuid_obj} ne "mem_clr.o" ? "#define OPENSSL_CPUID_OBJ" : "" -}
+
 /* Generate 80386 code? */
 {- $config{processor} eq "386" ? "#define" : "#undef" -} I386_ONLY
 
-#if !(defined(VMS) || defined(__VMS)) /* VMS uses logical names instead */
-#if defined(HEADER_CRYPTLIB_H) && !defined(OPENSSLDIR)
-#define ENGINESDIR {- quotify1($config{enginesdir}) -}
-#define OPENSSLDIR {- quotify1($config{openssldir}) -}
-#endif
+#if !defined(VMS) && !defined(__VMS) /* VMS uses logical names instead */
+# if defined(HEADER_CRYPTLIB_H) && !defined(OPENSSLDIR)
+#  define ENGINESDIR {- quotify1($config{enginesdir}) -}
+#  define OPENSSLDIR {- quotify1($config{openssldir}) -}
+# endif
 #endif
 
 #undef OPENSSL_UNISTD
 #define OPENSSL_UNISTD {- $target{unistd} -}
 
-#undef OPENSSL_EXPORT_VAR_AS_FUNCTION
-{- $config{export_var_as_fn} ? "#define OPENSSL_EXPORT_VAR_AS_FUNCTION" : "" -}
+{- $config{export_var_as_fn} ? "#define" : "#undef" -} OPENSSL_EXPORT_VAR_AS_FUNCTION
 
 /*
  * The following are cipher-specific, but are part of the public API.
  */
-
 #if !defined(OPENSSL_SYS_UEFI)
-{- $config{bn_ll} ? "#define" : "#undef" -} BN_LLONG
-    
+{- $config{bn_ll} ? "# define" : "# undef" -} BN_LLONG
 /* Only one for the following should be defined */
-{- $config{b64l} ? "#define" : "#undef" -} SIXTY_FOUR_BIT_LONG
-{- $config{b64}  ? "#define" : "#undef" -} SIXTY_FOUR_BIT
-{- $config{b32}  ? "#define" : "#undef" -} THIRTY_TWO_BIT
+{- $config{b64l} ? "# define" : "# undef" -} SIXTY_FOUR_BIT_LONG
+{- $config{b64}  ? "# define" : "# undef" -} SIXTY_FOUR_BIT
+{- $config{b32}  ? "# define" : "# undef" -} THIRTY_TWO_BIT
 #endif
 
-# define RC4_INT {- $config{rc4_int} -}
+#define RC4_INT {- $config{rc4_int} -}
 
 #ifdef  __cplusplus
 }