# HG changeset patch
# User Rik <rik@octave.org>
# Date 1385063448 28800
# Node ID acdee77299e1c51fca71aa01b3eb3f02e8357f55
# Parent  437e51a0c25da9df0c1cd0f55c108aa18de8df02
ax_blas_f77_func.m4: Overhaul to remove tabs, use indentation, follow m4 quoting guidelines.

* m4/ax_blas_f77_func.m4: Overhaul to remove tabs, use indentation, follow m4
quoting guidelines.

diff -r 437e51a0c25d -r acdee77299e1 m4/ax_blas_f77_func.m4
--- a/m4/ax_blas_f77_func.m4	Thu Nov 21 11:07:05 2013 -0800
+++ b/m4/ax_blas_f77_func.m4	Thu Nov 21 11:50:48 2013 -0800
@@ -55,20 +55,21 @@
 #serial 8
 
 AU_ALIAS([ACX_BLAS_F77_FUNC], [AX_BLAS_F77_FUNC])
+
 AC_DEFUN([AX_BLAS_F77_FUNC], [
-AC_PREREQ(2.50)
-AC_REQUIRE([AX_BLAS])
+  AC_PREREQ(2.50)
+  AC_REQUIRE([AX_BLAS])
 
-# F77 call-compatibility checks
-if test "$cross_compiling" = yes ; then
-	ifelse($3, ,$1,$3)
-elif test x"$ax_blas_ok" = xyes; then
-	save_ax_blas_f77_func_LIBS="$LIBS"
-	LIBS="$BLAS_LIBS $LIBS"
-	AC_LANG_PUSH(Fortran 77)
-# LSAME check (LOGICAL return values)
-	AC_MSG_CHECKING([whether LSAME is called correctly from Fortran])
-	AC_RUN_IFELSE(AC_LANG_PROGRAM(,[[
+  ## F77 call-compatibility checks
+  if test "$cross_compiling" = yes ; then
+    ifelse($3, ,$1,$3)
+  elif test x"$ax_blas_ok" = xyes; then
+    save_ax_blas_f77_func_LIBS="$LIBS"
+    LIBS="$BLAS_LIBS $LIBS"
+    AC_LANG_PUSH(Fortran 77)
+    ## LSAME check (LOGICAL return values)
+    AC_MSG_CHECKING([whether LSAME is called correctly from Fortran])
+    AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[
       logical lsame,w
       external lsame
       character c1,c2
@@ -78,12 +79,13 @@
       if (w) stop 1
       w = lsame(c1,c1)
       if (.not. w) stop 1
-      ]]),[ax_blas_lsame_fcall_ok=yes],
-	[ax_blas_lsame_fcall_ok=no])
-	AC_MSG_RESULT([$ax_blas_lsame_fcall_ok])
-# ISAMAX check (INTEGER return values)
-	AC_MSG_CHECKING([whether ISAMAX is called correctly from Fortran])
-	AC_RUN_IFELSE(AC_LANG_PROGRAM(,[[
+      ]])],
+      [ax_blas_lsame_fcall_ok=yes],
+      [ax_blas_lsame_fcall_ok=no])
+    AC_MSG_RESULT([$ax_blas_lsame_fcall_ok])
+    ## ISAMAX check (INTEGER return values)
+    AC_MSG_CHECKING([whether ISAMAX is called correctly from Fortran])
+    AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[
       integer isamax,i
       external isamax
       real a(2)
@@ -91,61 +93,66 @@
       a(2) = -2e0
       i = isamax(2,a,1)
       if (i.ne.2) stop 1
-      ]]),[ax_blas_isamax_fcall_ok=yes],
-	[ax_blas_isamax_fcall_ok=no])
-	AC_MSG_RESULT([$ax_blas_isamax_fcall_ok])
-# SDOT check (REAL return values)
-	AC_MSG_CHECKING([whether SDOT is called correctly from Fortran])
-	AC_RUN_IFELSE(AC_LANG_PROGRAM(,[[
+      ]])],
+      [ax_blas_isamax_fcall_ok=yes],
+      [ax_blas_isamax_fcall_ok=no])
+    AC_MSG_RESULT([$ax_blas_isamax_fcall_ok])
+    ## SDOT check (REAL return values)
+    AC_MSG_CHECKING([whether SDOT is called correctly from Fortran])
+    AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[
       real sdot,a(1),b(1),w
       external sdot
       a(1) = 1e0
       b(1) = 2e0
       w = sdot(1,a,1,b,1)
       if (w .ne. a(1)*b(1)) stop 1
-      ]]),[ax_blas_sdot_fcall_ok=yes],
-	[ax_blas_sdot_fcall_ok=no])
-	AC_MSG_RESULT([$ax_blas_sdot_fcall_ok])
-# DDOT check (DOUBLE return values)
-	AC_MSG_CHECKING([whether DDOT is called correctly from Fortran])
-	AC_RUN_IFELSE(AC_LANG_PROGRAM(,[[
+      ]])],
+      [ax_blas_sdot_fcall_ok=yes],
+      [ax_blas_sdot_fcall_ok=no])
+    AC_MSG_RESULT([$ax_blas_sdot_fcall_ok])
+    ## DDOT check (DOUBLE return values)
+    AC_MSG_CHECKING([whether DDOT is called correctly from Fortran])
+    AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[
       double precision ddot,a(1),b(1),w
       external ddot
       a(1) = 1d0
       b(1) = 2d0
       w = ddot(1,a,1,b,1)
       if (w .ne. a(1)*b(1)) stop 1
-      ]]),[ax_blas_ddot_fcall_ok=yes],
-	[ax_blas_ddot_fcall_ok=no])
-	AC_MSG_RESULT([$ax_blas_ddot_fcall_ok])
-# CDOTU check (COMPLEX return values)
-	AC_MSG_CHECKING([whether CDOTU is called correctly from Fortran])
-	AC_RUN_IFELSE(AC_LANG_PROGRAM(,[[
+      ]])],
+      [ax_blas_ddot_fcall_ok=yes],
+      [ax_blas_ddot_fcall_ok=no])
+    AC_MSG_RESULT([$ax_blas_ddot_fcall_ok])
+    ## CDOTU check (COMPLEX return values)
+    AC_MSG_CHECKING([whether CDOTU is called correctly from Fortran])
+    AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[
       complex cdotu,a(1),b(1),w
       external cdotu
       a(1) = cmplx(1e0,1e0)
       b(1) = cmplx(1e0,2e0)
       w = cdotu(1,a,1,b,1)
       if (w .ne. a(1)*b(1)) stop 1
-      ]]),[ax_blas_cdotu_fcall_ok=yes],
-	[ax_blas_cdotu_fcall_ok=no])
-	AC_MSG_RESULT([$ax_blas_cdotu_fcall_ok])
-# ZDOTU check (DOUBLE COMPLEX return values)
-	AC_MSG_CHECKING([whether ZDOTU is called correctly from Fortran])
-	AC_RUN_IFELSE(AC_LANG_PROGRAM(,[[
+      ]])],
+      [ax_blas_cdotu_fcall_ok=yes],
+      [ax_blas_cdotu_fcall_ok=no])
+    AC_MSG_RESULT([$ax_blas_cdotu_fcall_ok])
+    ## ZDOTU check (DOUBLE COMPLEX return values)
+    AC_MSG_CHECKING([whether ZDOTU is called correctly from Fortran])
+    AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[
       double complex zdotu,a(1),b(1),w
       external zdotu
       a(1) = dcmplx(1d0,1d0)
       b(1) = dcmplx(1d0,2d0)
       w = zdotu(1,a,1,b,1)
       if (w .ne. a(1)*b(1)) stop 1
-      ]]),[ax_blas_zdotu_fcall_ok=yes],
-	[ax_blas_zdotu_fcall_ok=no])
-	AC_MSG_RESULT([$ax_blas_zdotu_fcall_ok])
-# Check for correct integer size
-# FIXME: this may fail with things like -ftrapping-math.
-        AC_MSG_CHECKING([whether the integer size is correct])
-        AC_RUN_IFELSE(AC_LANG_PROGRAM(,[[
+      ]])],
+      [ax_blas_zdotu_fcall_ok=yes],
+      [ax_blas_zdotu_fcall_ok=no])
+    AC_MSG_RESULT([$ax_blas_zdotu_fcall_ok])
+    ## Check for correct integer size
+    ## FIXME: this may fail with things like -ftrapping-math.
+    AC_MSG_CHECKING([whether the integer size is correct])
+    AC_RUN_IFELSE([AC_LANG_PROGRAM([], [[
       integer n,nn(3)
       real s,a(1),b(1),sdot
       a(1) = 1.0
@@ -166,40 +173,40 @@
       nn(3) = -1
       s = sdot(nn(2),a,1,b,1)
       if (s .ne. 1.0) stop 1
-       ]]),[ax_blas_integer_size_ok=yes],
-	[ax_blas_integer_size_ok=no])
-	AC_MSG_RESULT([$ax_blas_integer_size_ok])
+      ]])],
+      [ax_blas_integer_size_ok=yes],
+      [ax_blas_integer_size_ok=no])
+    AC_MSG_RESULT([$ax_blas_integer_size_ok])
 
-	AC_LANG_POP(Fortran 77)
+    AC_LANG_POP(Fortran 77)
 
-# if any of the tests failed, reject the BLAS library
-	if test $ax_blas_lsame_fcall_ok = yes \
-		-a $ax_blas_sdot_fcall_ok = yes \
-		-a $ax_blas_ddot_fcall_ok = yes \
-		-a $ax_blas_cdotu_fcall_ok = yes \
-		-a $ax_blas_zdotu_fcall_ok = yes \
-		-a $ax_blas_integer_size_ok = yes; then
-		ax_blas_f77_func_ok=yes;
-		$1
-	else
-		ax_blas_f77_func_ok=no;
-		$2
-	fi
-	LIBS="$save_ax_blas_f77_func_LIBS"
-fi
-
+    ## if any of the tests failed, reject the BLAS library
+    if test $ax_blas_lsame_fcall_ok = yes \
+      -a $ax_blas_sdot_fcall_ok = yes \
+      -a $ax_blas_ddot_fcall_ok = yes \
+      -a $ax_blas_cdotu_fcall_ok = yes \
+      -a $ax_blas_zdotu_fcall_ok = yes \
+      -a $ax_blas_integer_size_ok = yes; then
+      ax_blas_f77_func_ok=yes;
+      $1
+    else
+      ax_blas_f77_func_ok=no;
+      $2
+    fi
+    LIBS="$save_ax_blas_f77_func_LIBS"
+  fi
 ])dnl AX_BLAS_F77_FUNC
 
 AC_DEFUN([AX_BLAS_WITH_F77_FUNC], [
-AC_PREREQ(2.50)
-AX_BLAS([# disable special action], [])
-if test x$ax_blas_ok = xyes ; then
-	AX_BLAS_F77_FUNC(
-	[ifelse([$1],,AC_DEFINE(HAVE_BLAS,1,[Define if you have a BLAS library.]),[$1])],
-	[ax_blas_ok=no; BLAS_LIBS=],
-  [$3])
-fi
-if test x$ax_blas_ok = xno ; then
-	$2
-fi
+  AC_PREREQ(2.50)
+  AX_BLAS([# disable special action], [])
+  if test x$ax_blas_ok = xyes ; then
+    AX_BLAS_F77_FUNC(
+    [ifelse([$1],,AC_DEFINE(HAVE_BLAS,1,[Define if you have a BLAS library.]),[$1])],
+    [ax_blas_ok=no; BLAS_LIBS=],
+    [$3])
+  fi
+  if test x$ax_blas_ok = xno ; then
+    $2
+  fi
 ])dnl AX_BLAS_WITH_F77_FUNC