X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/7a5af13c85ee4d42e032ecbc790ec845110ed0ba..2618bd209e634178082d699979540eb29490ce72:/configure.ac

diff --git a/configure.ac b/configure.ac
index 1802a8a0..6171efd2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -172,6 +172,40 @@ case $CPUFAM in
 esac
 
 dnl--------------------------------------------------------------------------
+dnl CPU-specific assembler features.
+
+AC_LANG([CPPAS])
+
+case $CPUFAM in
+  armel)
+    AC_CACHE_CHECK(
+      [whether the assembler understands ARMv8 crypto extensions],
+      [mdw_cv_as_armv8_crypto],
+      [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+	.arch	armv8-a
+	.fpu	crypto-neon-fp-armv8
+
+	.text
+	.globl	foo
+foo:
+	vldmia	r0, {d0-d3}
+	aese.8	q0, q1
+	aesmc.8	q0, q0
+	vstmia	r0, {d0, d1}
+	bx	r14]])],
+	 [mdw_cv_as_armv8_crypto=yes],
+	 [mdw_cv_as_armv8_crypto=no])])
+    ;;
+esac
+
+: ${mdw_cv_as_armv8_crypto=no}
+AM_CONDITIONAL([HAVE_AS_ARMV8_CRYPTO], [test $mdw_cv_as_armv8_crypto = yes])
+if test $mdw_cv_as_armv8_crypto = yes; then
+  AC_DEFINE([HAVE_AS_ARMV8_CRYPTO], [1],
+    [Define to 1 if your ARM assembler supports the ARMv8 crypto instructions.])
+fi
+
+dnl--------------------------------------------------------------------------
 dnl C programming environment.
 
 AC_LANG([C])
@@ -182,10 +216,19 @@ dnl Find out if we're cross-compiling.
 AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes])
 
 dnl Various standard types.
-AC_CHECK_TYPE([pid_t], [int])
+AC_CHECK_TYPE([pid_t], [],
+  [AC_DEFINE([pid_t], [int],
+     [Define to `int' if <sys/types.h> does not define])])
 AC_TYPE_UID_T
-AC_CHECK_TYPE([ssize_t], [int])
-AC_CHECK_TYPE([socklen_t], [int])
+AC_CHECK_TYPE([ssize_t], [],
+  [AC_DEFINE([ssize_t], [int],
+     [Define to `int' if <sys/types.h> does not define])])
+AC_CHECK_TYPE([socklen_t], [],
+  [AC_DEFINE([socklen_t], [int],
+     [Define to `int' if <sys/socket.h> does not define])],
+  [AC_INCLUDES_DEFAULT
+#include <sys/socket.h>
+])
 
 dnl The maths library.
 mdw_ORIG_LIBS=$LIBS LIBS=
@@ -197,7 +240,7 @@ LIBS=$mdw_ORIG_LIBS
 dnl Find out whether very long integer types are available.
 AC_CHECK_HEADERS([stdint.h])
 AC_SUBST([have_stdint_h])
-AC_C_LONG_LONG
+AX_C_LONG_LONG
 
 dnl Some equipment wanted for checking CPU features at runtime.
 AC_CHECK_HEADERS([asm/hwcap.h])