Moving config files

1 files changed, 103 insertions, 0 deletions

diff --git a/m4/fortran.m4 b/m4/fortran.m4
new file mode 100644
index 00000000..4ed4c7f7
--- /dev/null
+++ b/m4/fortran.m4
@@ -0,0 +1,103 @@
+dnl Macros which process ./configure arguments
+
+
+dnl Fortran Macros
+dnl ------------------------------------------------------
+dnl Copyright INRIA
+dnl Sylvestre Ledru - June 2006
+dnl 
+dnl ------------------------------------------------------
+dnl AC_CHECK_UNDERSCORE_FORTRAN
+dnl Look for trailing or leading underscores
+dnl 
+AC_DEFUN([AC_CHECK_UNDERSCORE_FORTRAN],[
+
+AC_CHECK_PROGS(NM,nm,no)
+if test "x$NM" = "xno"; then
+	AC_MSG_ERROR([Unable to find nm in the path. nm is used to list all the symbol from a lib])
+fi
+AC_MSG_CHECKING([for leading underscores with Fortran (name-mangling scheme)])
+
+cat << EOF > pipof.f
+       subroutine pipof
+       end
+EOF
+
+dnl expand possible $SCIDIR in $FC (wizard command...)
+eval "$F77 -c pipof.f > /dev/null 2>&1"
+
+FC_LEADING_UNDERSCORE=no
+FC_TRAILING_UNDERSCORE=no
+
+output=`$NM $NMOPT pipof.o|grep _pipof 2>&1`
+if test ! -z "$output"; then
+  FC_LEADING_UNDERSCORE=yes
+  FC_TRAILING_UNDERSCORE=no
+fi
+
+output=`$NM $NMOPT pipof.o|grep pipof_ 2>&1`
+if test ! -z "$output"; then
+  FC_LEADING_UNDERSCORE=no
+  FC_TRAILING_UNDERSCORE=yes
+fi
+
+output=`$NM $NMOPT pipof.o|grep _pipof_ 2>&1`
+if test ! -z "$output"; then
+  FC_LEADING_UNDERSCORE=yes
+  FC_TRAILING_UNDERSCORE=yes
+fi
+
+if test "$FC_LEADING_UNDERSCORE" = yes; then
+  AC_DEFINE([WLU],,[If leading underscores])
+fi
+if test "$FC_TRAILING_UNDERSCORE" = yes; then
+  AC_DEFINE([WTU],,[If trailing underscores])
+fi
+
+rm -f pipof.f pipof.o
+
+AC_MSG_RESULT([$FC_LEADING_UNDERSCORE])
+AC_MSG_CHECKING([for trailing underscores with Fortran (name-mangling scheme)])
+AC_MSG_RESULT([$FC_TRAILING_UNDERSCORE])
+
+#####################
+## test for sharpsign
+#####################
+
+AC_MSG_CHECKING([use of the sharpsign in CPP])
+
+AC_COMPILE_IFELSE(
+	[ 
+		AC_LANG_PROGRAM(
+			[[#define C2F(name) name##_]], 
+			[[C2F(toto)()]]
+		)
+	],
+	[AC_MSG_RESULT(yes)
+	AC_DEFINE([CNAME(name1,name2)], [name1##name2],[Cname])
+	USE_SHARP_SIGN=yes]
+	,
+	[AC_MSG_RESULT(no)
+	AC_DEFINE([CNAME(name1,name2)], [name1/**/name2],[Cname])
+	USE_SHARP_SIGN=no]
+)
+
+## Define  C2F and F2C entry point conversion ##
+if test "$FC_TRAILING_UNDERSCORE" = yes; then
+	if test "$USE_SHARP_SIGN" = yes; then
+	AC_MSG_RESULT([Define C2F with Trailing Underscore and Sharp Sign])
+		AC_DEFINE([C2F(name)], [name##_],[Define C2F with Trailing Underscore and Sharp Sign])
+		AC_DEFINE([F2C(name)], [name##_],[Define F2C with Trailing Underscore and Sharp Sign])
+	else
+	AC_MSG_RESULT([Define C2F with Trailing Underscore and without Sharp Sign])
+		AC_DEFINE([C2F(name)], [name/**/_],[Define C2F with Trailing Underscore and without Sharp Sign])
+		AC_DEFINE([F2C(name)], [name/**/_],[Define F2C with Trailing Underscore and without Sharp Sign])
+	fi
+else
+		AC_MSG_RESULT([Define C2F without Trailing Underscore])
+	AC_DEFINE([C2F(name)], [name],[Define C2F without Trailing Underscore])
+	AC_DEFINE([F2C(name)], [name],[Define C2F without Trailing Underscore])
+fi
+
+])dnl AC_CHECK_UNDERSCORE_FORTRAN
+