Move bf_asm_src file information to build.info files

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9166)

Configurations/00-base-templates.conf

@@ -14,7 +14,6 @@ my %targets=(
 	thread_scheme	=> "(unknown)", # Assume we don't know
 	thread_defines	=> [],
 
-	bf_asm_src	=> "bf_enc.c",
 	md5_asm_src	=> "",
 	cast_asm_src	=> "c_enc.c",
 	rc4_asm_src	=> "rc4_enc.c rc4_skey.c",
@@ -163,7 +162,6 @@ my %targets=(
 
     x86_asm => {
 	template	=> 1,
-	bf_asm_src	=> "bf-586.s",
 	md5_asm_src	=> "md5-586.s",
 	cast_asm_src	=> "cast-586.s",
 	sha1_asm_src	=> "sha1-586.s sha256-586.s sha512-586.s",

Configurations/README

@@ -240,9 +240,6 @@ In each table entry, the following keys are significant:
                                                 export vars as
                                                 accessor functions.
 
-        bf_asm_src      => Assembler implementation of core BlowFish
-                           functions.
-                           Defaults to 'bf_enc.c'
         md5_asm_src     => Assembler implementation of core MD5
                            functions.
         sha1_asm_src    => Assembler implementation of core SHA1,

Configure

@@ -3366,7 +3366,6 @@ sub print_table_entry
         "loutflag",
         "ex_libs",
         "bn_ops",
-        "bf_asm_src",
         "md5_asm_src",
         "cast_asm_src",
         "sha1_asm_src",

crypto/bf/build.info

@@ -1,6 +1,17 @@
 LIBS=../../libcrypto
-SOURCE[../../libcrypto]=bf_skey.c bf_ecb.c bf_cfb64.c bf_ofb64.c \
-        {- $target{bf_asm_src} -}
+
+$BFASM=bf_enc.c
+IF[{- !$disabled{asm} -}]
+  $BFASM_x86=bf-586.s
+
+  # Now that we have defined all the arch specific variables, use the
+  # appropriate one
+  IF[$BFASM_{- $target{asm_arch} -}]
+    $BFASM=$BFASM_{- $target{asm_arch} -}
+  ENDIF
+ENDIF
+
+SOURCE[../../libcrypto]=bf_skey.c bf_ecb.c bf_cfb64.c bf_ofb64.c $BFASM
 
 GENERATE[bf-586.s]=asm/bf-586.pl \
         $(PERLASM_SCHEME) $(LIB_CFLAGS) $(LIB_CPPFLAGS) $(PROCESSOR)