$NetBSD: patch-ac,v 1.5 2002/03/05 21:05:53 dmcmahill Exp $

check for the fortran libs.  We need to check this way
to keep compatibility with both f2c and f77 rather than
hard coding something like "-lg2c".

also honor {C,F,LD}FLAGS

--- configure.in.orig	Mon Mar 26 07:08:33 2001
+++ configure.in	Sun Mar  3 13:19:35 2002
@@ -112,4 +112,12 @@
 fi
 
+##################################################
+## Fortran libraries required for creating fortran
+## shared libraries.  In particular this is needed
+## for the lapack examples when using f2c.  This
+## will set the FLIBS variable.
+##################################################
+AC_F77_LIBRARY_LDFLAGS
+
 #############################################
 ## Compilers and options according to machine
@@ -847,7 +855,7 @@
     # C Compiler
     #
-    CC=cc
-    CC_OPTIONS='-O2 -Dnetbsd'
-    CC_LDFLAGS="-Wl,-R${X11BASE}/lib"
+    CC="${CC}"
+    CC_OPTIONS="${CFLAGS} -Dnetbsd"
+    CC_LDFLAGS="${LDFLAGS} -Wl,-R${X11BASE}/lib"
     CC_PICFLAGS='-fPIC'
     # check for --export-dynamic
@@ -875,7 +883,7 @@
    fi
    FC="$F77"
-   FC_OPTIONS='-O2'
+   FC_OPTIONS="${FFLAGS}"
    FC_OPTIONS_O0=
-   FC_LDFLAGS="-Wl,-R${X11BASE}/lib"
+   FC_LDFLAGS="${LDFLAGS} -Wl,-R${X11BASE}/lib"
    FC_PICFLAGS='-fPIC'
    # check for --export-dynamic
@@ -1339,4 +1347,5 @@
 AC_SUBST(LDFLAGS)
 AC_SUBST(LIBS)
+AC_SUBST(FLIBS)
 #AC_SUBST(CC)
 AC_SUBST(CFLAGS)