Replace obsolete AC_TRY_LINK_FUNCTION macros

Autoconf 2.50 introduced new macros in favor of the AC_TRY_FOO. Since
Autoconf 2.55 the AC_TRY_LINK_FUNC macro has been additionally marked
as obsolete and suggested to be replaced with AC_LINK_IFELSE and
AC_LANG_CALL.

Refs:
- http://git.savannah.gnu.org/cgit/autoconf.git/tree/NEWS
- https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Obsolete-Macros.html

1 files changed, 5 insertions, 5 deletions

diff --git a/m4/ax_blas.m4 b/m4/ax_blas.m4
index bf9f29c..06c2024 100644
--- a/m4/ax_blas.m4
+++ b/m4/ax_blas.m4
@@ -63,11 +63,11 @@
 #   modified version of the Autoconf Macro, you may extend this special
 #   exception to the GPL to apply to your modified version as well.
 
-#serial 15
+#serial 16
 
 AU_ALIAS([ACX_BLAS], [AX_BLAS])
 AC_DEFUN([AX_BLAS], [
-AC_PREREQ(2.50)
+AC_PREREQ([2.55])
 AC_REQUIRE([AC_F77_LIBRARY_LDFLAGS])
 AC_REQUIRE([AC_CANONICAL_HOST])
 ax_blas_ok=no
@@ -93,7 +93,7 @@ if test $ax_blas_ok = no; then
 if test "x$BLAS_LIBS" != x; then
 	save_LIBS="$LIBS"; LIBS="$BLAS_LIBS $LIBS"
 	AC_MSG_CHECKING([for $sgemm in $BLAS_LIBS])
-	AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes], [BLAS_LIBS=""])
+	AC_LINK_IFELSE([AC_LANG_CALL([], [$sgemm])], [ax_blas_ok=yes], [BLAS_LIBS=""])
 	AC_MSG_RESULT($ax_blas_ok)
 	LIBS="$save_LIBS"
 fi
@@ -103,7 +103,7 @@ fi
 if test $ax_blas_ok = no; then
 	save_LIBS="$LIBS"; LIBS="$LIBS"
 	AC_MSG_CHECKING([if $sgemm is being linked in already])
-	AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes])
+	AC_LINK_IFELSE([AC_LANG_CALL([], [$sgemm])], [ax_blas_ok=yes])
 	AC_MSG_RESULT($ax_blas_ok)
 	LIBS="$save_LIBS"
 fi
@@ -174,7 +174,7 @@ fi
 if test $ax_blas_ok = no; then
 	save_LIBS="$LIBS"; LIBS="-framework vecLib $LIBS"
 	AC_MSG_CHECKING([for $sgemm in -framework vecLib])
-	AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes;BLAS_LIBS="-framework vecLib"])
+	AC_LINK_IFELSE([AC_LANG_CALL([], [$sgemm])], [ax_blas_ok=yes;BLAS_LIBS="-framework vecLib"])
 	AC_MSG_RESULT($ax_blas_ok)
 	LIBS="$save_LIBS"
 fi