update autoconf

configure.ac

@@ -1,24 +1,24 @@
 # Process this file with autoconf to produce a configure script.
 
 # note: keep version number in sync with harminv.h
-AC_INIT(harminv, 1.4.1, [email protected])
+AC_INIT([harminv],[1.4.1],[[email protected]])
 
 AM_INIT_AUTOMAKE([foreign silent-rules 1.11])
 AM_SILENT_RULES(yes)
 AC_CONFIG_SRCDIR(harminv.c)
-AM_CONFIG_HEADER(config.h)
+AC_CONFIG_HEADERS(config.h)
 AC_CONFIG_MACRO_DIR([m4])
 AM_MAINTAINER_MODE
 
 # Shared-library version number; indicates api compatibility, and is
 # *not* the same as the "human" version number.  CURRENT:REVISION:AGE
 SHARED_VERSION_INFO="3:0:0"
 AC_SUBST(SHARED_VERSION_INFO)
-AM_ENABLE_SHARED(no) dnl shared libs cause too many headaches to be default
+AC_ENABLE_SHARED([no]) dnl shared libs cause too many headaches to be default
 
 ##############################################################################
 
-AC_ARG_ENABLE(debug, [AC_HELP_STRING([--enable-debug,compile for debugging])],
+AC_ARG_ENABLE(debug, [AS_HELP_STRING([--enable-debug,compile for debugging])],
 	      enable_debug=$enableval, enable_debug=no)
 if test "$enable_debug" = "yes"; then
 	CFLAGS="-g"
@@ -54,15 +54,14 @@ AC_ARG_WITH(cxx, [  --with-cxx=<dir>        force use of C++ and complex<double>
 
 if test "x$with_cxx" = "xno"; then
 
-AC_PROG_CC_C99
+AC_PROG_CC
 
 have_c_complex=yes
 AC_CHECK_HEADERS(complex.h)
 AC_CACHE_CHECK([for C complex keyword], acx_cv_c_complex,
  [acx_cv_c_complex=unsupported
   for acx_kw in complex _Complex __complex__; do
-    AC_TRY_COMPILE([#include <complex.h>], [float $acx_kw foo;],
-                   [acx_cv_c_complex=$acx_kw; break])
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <complex.h>]], [[float $acx_kw foo;]])],[acx_cv_c_complex=$acx_kw; break],[])
   done
  ])
 
@@ -77,9 +76,7 @@ else
   AC_CACHE_CHECK([for C complex I constant], acx_cv_c_complex_I,
    [acx_cv_c_complex_I=unsupported
    for acx_kw in I "(1.0i)"; do
-     AC_TRY_COMPILE([#include <complex.h>],
-                    [float $acx_cv_c_complex foo = $acx_kw;],
-                    [acx_cv_c_complex_I=$acx_kw; break])
+     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <complex.h>]], [[float $acx_cv_c_complex foo = $acx_kw;]])],[acx_cv_c_complex_I=$acx_kw; break],[])
    done
   ])
 
@@ -94,8 +91,7 @@ else
 
   AC_CACHE_CHECK([for CX_LIMITED_RANGE_ON macro], acx_cv_c_cx_limited_range_on,
    [acx_cv_c_cx_limited_range_on=no
-    AC_TRY_COMPILE([#include <complex.h>],
-                   [CX_LIMITED_RANGE_ON;], [acx_cv_c_cx_limited_range_on=yes])])
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <complex.h>]], [[CX_LIMITED_RANGE_ON;]])],[acx_cv_c_cx_limited_range_on=yes],[])])
   if test "$acx_cv_c_cx_limited_range_on" = "no"; then
      AC_DEFINE(CX_LIMITED_RANGE_ON, 0, [Define to no-op if C99 macro is not available.])
   fi
@@ -122,7 +118,7 @@ AC_CHECK_TYPES([long double])
 
 ###########################################################################
 
-AC_PROG_LIBTOOL
+LT_INIT
 ###########################################################################
 
 AC_CHECK_LIB(m, sqrt)

m4/ax_blas.m4

@@ -1,5 +1,5 @@
 # ===========================================================================
-#          http://www.gnu.org/software/autoconf-archive/ax_blas.html
+#         https://www.gnu.org/software/autoconf-archive/ax_blas.html
 # ===========================================================================
 #
 # SYNOPSIS
@@ -36,6 +36,7 @@
 # LICENSE
 #
 #   Copyright (c) 2008 Steven G. Johnson <[email protected]>
+#   Copyright (c) 2019 Geoffrey M. Oxberry <[email protected]>
 #
 #   This program is free software: you can redistribute it and/or modify it
 #   under the terms of the GNU General Public License as published by the
@@ -48,7 +49,7 @@
 #   Public License for more details.
 #
 #   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#   with this program. If not, see <https://www.gnu.org/licenses/>.
 #
 #   As a special exception, the respective Autoconf Macro's copyright owner
 #   gives unlimited permission to copy, distribute and modify the configure
@@ -63,11 +64,11 @@
 #   modified version of the Autoconf Macro, you may extend this special
 #   exception to the GPL to apply to your modified version as well.
 
-#serial 14
+#serial 17
 
 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
@@ -77,7 +78,9 @@ AC_ARG_WITH(blas,
 case $with_blas in
 	yes | "") ;;
 	no) ax_blas_ok=disable ;;
-	-* | */* | *.a | *.so | *.so.* | *.o) BLAS_LIBS="$with_blas" ;;
+	-* | */* | *.a | *.so | *.so.* | *.dylib | *.dylib.* | *.o)
+		BLAS_LIBS="$with_blas"
+	;;
 	*) BLAS_LIBS="-l$with_blas" ;;
 esac
 
@@ -93,7 +96,7 @@ 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 +106,7 @@ 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 +177,7 @@ 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

m4/ax_lapack.m4

@@ -1,5 +1,5 @@
 # ===========================================================================
-#         http://www.gnu.org/software/autoconf-archive/ax_lapack.html
+#        https://www.gnu.org/software/autoconf-archive/ax_lapack.html
 # ===========================================================================
 #
 # SYNOPSIS
@@ -37,6 +37,7 @@
 # LICENSE
 #
 #   Copyright (c) 2009 Steven G. Johnson <[email protected]>
+#   Copyright (c) 2019 Geoffrey M. Oxberry <[email protected]>
 #
 #   This program is free software: you can redistribute it and/or modify it
 #   under the terms of the GNU General Public License as published by the
@@ -49,7 +50,7 @@
 #   Public License for more details.
 #
 #   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#   with this program. If not, see <https://www.gnu.org/licenses/>.
 #
 #   As a special exception, the respective Autoconf Macro's copyright owner
 #   gives unlimited permission to copy, distribute and modify the configure
@@ -64,7 +65,7 @@
 #   modified version of the Autoconf Macro, you may extend this special
 #   exception to the GPL to apply to your modified version as well.
 
-#serial 7
+#serial 10
 
 AU_ALIAS([ACX_LAPACK], [AX_LAPACK])
 AC_DEFUN([AX_LAPACK], [
@@ -76,7 +77,9 @@ AC_ARG_WITH(lapack,
 case $with_lapack in
         yes | "") ;;
         no) ax_lapack_ok=disable ;;
-        -* | */* | *.a | *.so | *.so.* | *.o) LAPACK_LIBS="$with_lapack" ;;
+        -* | */* | *.a | *.so | *.so.* | *.dylib | *.dylib.* | *.o)
+                 LAPACK_LIBS="$with_lapack"
+        ;;
         *) LAPACK_LIBS="-l$with_lapack" ;;
 esac
 
@@ -93,7 +96,7 @@ fi
 if test "x$LAPACK_LIBS" != x; then
         save_LIBS="$LIBS"; LIBS="$LAPACK_LIBS $BLAS_LIBS $LIBS $FLIBS"
         AC_MSG_CHECKING([for $cheev in $LAPACK_LIBS])
-        AC_TRY_LINK_FUNC($cheev, [ax_lapack_ok=yes], [LAPACK_LIBS=""])
+        AC_LINK_IFELSE([AC_LANG_CALL([], [$cheev])], [ax_lapack_ok=yes], [LAPACK_LIBS=""])
         AC_MSG_RESULT($ax_lapack_ok)
         LIBS="$save_LIBS"
         if test $ax_lapack_ok = no; then