[cig-commits] r22937 - cs/autoconf/trunk
elliott.sales.de.andrade at geodynamics.org
elliott.sales.de.andrade at geodynamics.org
Tue Oct 8 00:11:25 PDT 2013
Author: elliott.sales.de.andrade
Date: 2013-10-08 00:11:25 -0700 (Tue, 08 Oct 2013)
New Revision: 22937
Modified:
cs/autoconf/trunk/cit_backports.m4
Log:
Add AC_FC_PP_DEFINE to backports file.
This macro tests for the compiler flag to define a preprocessor macro.
Modified: cs/autoconf/trunk/cit_backports.m4
===================================================================
--- cs/autoconf/trunk/cit_backports.m4 2013-10-08 07:11:18 UTC (rev 22936)
+++ cs/autoconf/trunk/cit_backports.m4 2013-10-08 07:11:25 UTC (rev 22937)
@@ -13,6 +13,162 @@
#
+# The following two macros are from autoconf 2.68 (which is still new).
+#
+
+# AC_FC_PP_SRCEXT(EXT, [ACTION-IF-SUCCESS], [ACTION-IF-FAILURE])
+# --------------------------------------------------------------
+# Like AC_FC_SRCEXT, set the source-code extension used in Fortran (FC) tests
+# to EXT (which defaults to f). Also, look for any necessary additional
+# FCFLAGS needed to allow this extension for preprocessed Fortran, and store
+# them in the output variable FCFLAGS_<EXT> (e.g. FCFLAGS_f90 for EXT=f90).
+# If successful, call ACTION-IF-SUCCESS. If unable to compile preprocessed
+# source code with EXT, call ACTION-IF-FAILURE, which defaults to failing with
+# an error message.
+#
+# Some compilers allow preprocessing with either a Fortran preprocessor or
+# with the C preprocessor (cpp). Prefer the Fortran preprocessor, to deal
+# correctly with continuation lines, `//' (not a comment), and preserve white
+# space (for fixed form).
+#
+# (The flags for the current source-code extension, if any, are stored in
+# $ac_fcflags_srcext and used automatically in subsequent autoconf tests.)
+#
+# For ordinary extensions like f90, etcetera, the modified FCFLAGS
+# are needed for IBM's xlf*. Also, for Intel's ifort compiler, the
+# $FCFLAGS_<EXT> variable *must* go immediately before the source file on the
+# command line, unlike other $FCFLAGS. Ugh.
+#
+# Known extensions that enable preprocessing by default, and flags to force it:
+# GNU: .F .F90 .F95 .F03 .F08, -cpp for most others,
+# -x f77-cpp-input for .f77 .F77; -x f95-cpp-input for gfortran < 4.4
+# SGI: .F .F90, -ftpp or -cpp for .f .f90, -E write preproc to stdout
+# -macro_expand enable macro expansion everywhere (with -ftpp)
+# -P preproc only, save in .i, no #line's
+# SUN: .F .F95, -fpp for others; -xpp={fpp,cpp} for preprocessor selection
+# -F preprocess only (save in lowercase extension)
+# IBM: .F .F77 .F90 .F95 .F03, -qsuffix=cpp=EXT for extension .EXT to invoke cpp
+# -WF,-qnofpp -WF,-qfpp=comment:linecont:nocomment:nolinecont
+# -WF,-qlanglvl=classic or not -qnoescape (trigraph problems)
+# -d no #line in output, -qnoobject for preprocessing only (output in .f)
+# -q{no,}ppsuborigarg substitute original macro args before expansion
+# HP: .F, +cpp={yes|no|default} use cpp, -cpp, +cpp_keep save in .i/.i90
+# PGI: -Mpreprocess
+# Absoft: .F .FOR .F90 .F95, -cpp for others
+# Cray: .F .F90 .FTN, -e Z for others; -F enable macro expansion everywhere
+# Intel: .F .F90, -fpp for others, but except for .f and .f90, -Tf may also be
+# needed right before the source file name
+# PathScale: .F .F90 .F95, -ftpp or -cpp for .f .f90 .f95
+# -macro_expand for expansion everywhere, -P for no #line in output
+# Lahey: .F .FOR .F90 .F95, -Cpp
+# NAGWare: .F .F90 .F95, .ff .ff90 .ff95 (new), -fpp for others
+# Compaq/Tru64: .F .F90, -cpp, -P keep .i file, -P keep .i file
+# f2c: .F, -cpp
+# g95: .F .FOR .F90 .F95 .F03, -cpp -no-cpp, -E for stdout
+m4_version_prereq([2.68], [], [
+AC_DEFUN([AC_FC_PP_SRCEXT],
+[AC_LANG_PUSH(Fortran)dnl
+AC_CACHE_CHECK([for Fortran flag to compile preprocessed .$1 files],
+ ac_cv_fc_pp_srcext_$1,
+[ac_ext=$1
+ac_fcflags_pp_srcext_save=$ac_fcflags_srcext
+ac_fcflags_srcext=
+ac_cv_fc_pp_srcext_$1=unknown
+case $ac_ext in #(
+ [[fF]]77) ac_try=f77-cpp-input;; #(
+ *) ac_try=f95-cpp-input;;
+esac
+for ac_flag in none -ftpp -fpp -Tf "-fpp -Tf" -xpp=fpp -Mpreprocess "-e Z" \
+ -cpp -xpp=cpp -qsuffix=cpp=$1 "-x $ac_try" +cpp -Cpp; do
+ test "x$ac_flag" != xnone && ac_fcflags_srcext="$ac_flag"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#if 0
+#include <ac_nonexistent.h>
+ choke me
+#endif]])],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#if 1
+#include <ac_nonexistent.h>
+ choke me
+#endif]])],
+ [],
+ [ac_cv_fc_pp_srcext_$1=$ac_flag; break])])
+done
+rm -f conftest.$ac_objext conftest.$1
+ac_fcflags_srcext=$ac_fcflags_pp_srcext_save
+])
+if test "x$ac_cv_fc_pp_srcext_$1" = xunknown; then
+ m4_default([$3],
+ [AC_MSG_ERROR([Fortran could not compile preprocessed .$1 files])])
+else
+ ac_fc_srcext=$1
+ if test "x$ac_cv_fc_pp_srcext_$1" = xnone; then
+ ac_fcflags_srcext=""
+ FCFLAGS_[]$1[]=""
+ else
+ ac_fcflags_srcext=$ac_cv_fc_pp_srcext_$1
+ FCFLAGS_[]$1[]=$ac_cv_fc_pp_srcext_$1
+ fi
+ AC_SUBST(FCFLAGS_[]$1)
+ $2
+fi
+AC_LANG_POP(Fortran)dnl
+])# AC_FC_PP_SRCEXT
+])
+
+# AC_FC_PP_DEFINE([ACTION-IF-SUCCESS], [ACTION-IF-FAILURE = FAILURE])
+# -------------------------------------------------------------------
+# Find a flag to specify defines for preprocessed Fortran. Not all
+# Fortran compilers use -D. Substitute FC_DEFINE with the result and
+# call ACTION-IF-SUCCESS (defaults to nothing) if successful, and
+# ACTION-IF-FAILURE (defaults to failing with an error message) if not.
+#
+# Known flags:
+# IBM: -WF,-D
+# Lahey/Fujitsu: -Wp,-D older versions???
+# f2c: -D or -Wc,-D
+# others: -D
+m4_version_prereq([2.68], [], [
+AC_DEFUN([AC_FC_PP_DEFINE],
+[AC_LANG_PUSH([Fortran])dnl
+ac_fc_pp_define_srcext_save=$ac_fc_srcext
+AC_FC_PP_SRCEXT([F])
+AC_CACHE_CHECK([how to define symbols for preprocessed Fortran],
+ [ac_cv_fc_pp_define],
+[ac_fc_pp_define_srcext_save=$ac_fc_srcext
+ac_cv_fc_pp_define=unknown
+ac_fc_pp_define_FCFLAGS_save=$FCFLAGS
+for ac_flag in -D -WF,-D -Wp,-D -Wc,-D
+do
+ FCFLAGS="$ac_fc_pp_define_FCFLAGS_save ${ac_flag}FOOBAR ${ac_flag}ZORK=42"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[
+#ifndef FOOBAR
+ choke me
+#endif
+#if ZORK != 42
+ choke me
+#endif]])],
+ [ac_cv_fc_pp_define=$ac_flag])
+ test x"$ac_cv_fc_pp_define" != xunknown && break
+done
+FCFLAGS=$ac_fc_pp_define_FCFLAGS_save
+])
+ac_fc_srcext=$ac_fc_pp_define_srcext_save
+if test "x$ac_cv_fc_pp_define" = xunknown; then
+ FC_DEFINE=
+ m4_default([$2],
+ [AC_MSG_ERROR([Fortran does not allow to define preprocessor symbols], 77)])
+else
+ FC_DEFINE=$ac_cv_fc_pp_define
+ $1
+fi
+AC_SUBST([FC_DEFINE])dnl
+AC_LANG_POP([Fortran])dnl
+])
+])
+
+
+#
# The following three macros are from autoconf 2.69 (which is quite new).
#
@@ -195,4 +351,5 @@
])
])
+
dnl End of file
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