* config.m4.in (ASM_ALIGN_LOG): Substitute.

* configure.ac (ASM_ALIGN_LOG): Check if .align directive is
logarithmic.
* asm.m4 (ALIGN): New macro. Takes a logarithmic argument, and
expands to a .align directive.

Rev: src/nettle/asm.m4:1.16
Rev: src/nettle/config.m4.in:1.6

asm.m4

@@ -23,6 +23,10 @@ define(<EPILOGUE>,
 <.L$1end:
 .size C_NAME($1), .L$1end - C_NAME($1)>,)>)
 
+dnl Argument to ALIGN is always logarithmic
+dnl Can't use << operator with our choice of quote characters...
+define(<ALIGN>,
+<.align ifelse(ALIGN_LOG,yes,$1,eval(2 ** $1))>)
 
 dnl Struct defining macros
 

config.m4.in

 define(<srcdir>, <<@srcdir@>>)dnl
-define(<C_NAME>, <@ASM_SYMBOL_PREFIX@><$1>)
-define(<ELF_STYLE>, <@ASM_ELF_STYLE@>)
-define(<TYPE_FUNCTION>, <@ASM_TYPE_FUNCTION@>)
+define(<C_NAME>, <@ASM_SYMBOL_PREFIX@><$1>)dnl
+define(<ELF_STYLE>, <@ASM_ELF_STYLE@>)dnl
+define(<TYPE_FUNCTION>, <@ASM_TYPE_FUNCTION@>)dnl
+define(<ALIGN_LOG>, <@ASM_ALIGN_LOG@>)dnl
 divert(1)
 @ASM_MARK_NOEXEC_STACK@
 divert