Fix "install" target.

Add NANOTIME (gcc only) option.
Replace gettimeofday with generic utr (underlying timing routine)
Remove DIAG
Interpret multiple nested "start" calls as recursion.
In NUMERIC mode shift tag by 2 bits.

Makefile.in

@@ -14,7 +14,7 @@ $(LIBNAME): $(OBJS)
 
 all: $(LIBNAME) tests/all
 
-install:
+install: $(LIBNAME)
 	cp $(LIBNAME) $(LIBDIR)
 	cp gptl.h gptl.inc $(INCDIR)
 	cp man/man3/*.3 $(MANDIR)

configure.ac

@@ -41,6 +41,7 @@ AC_ARG_ENABLE(bit64,
 	    bit64=YES,bit64=NO)
 
 BITEXT=
+CFLAGS=
 
 if test "$bit64" = YES; then
   BITEXT=64;
@@ -97,6 +98,10 @@ AC_ARG_ENABLE(debug,[--enable-debug      Enable debugging],
 	       LDFLAGS="$LDFLAGS -g"
 	       FLDFLAGS="$FLDFLAGS -g"],)
 
+dnl Whether to enable debugging
+AC_ARG_ENABLE(nanotime,[--enable-nanotime   Replace gettimeofday with native Linux],
+              AC_DEFINE([NANOTIME]),)
+
 dnl Add GNU-specific options
 
 if test "$CC" = gcc ; then
@@ -109,7 +114,7 @@ fi
 
 dnl Whether to enable optimization
 AC_ARG_ENABLE(opt,[--enable-opt        Optimize for speed],
-              [CFLAGS="$CFLAGS -O";FFLAGS="$FFLAGS -O"],)
+              [CFLAGS="$CFLAGS -O3";FFLAGS="$FFLAGS -O"],)
 
 dnl Whether to use numeric rather than character timers
 AC_ARG_ENABLE(numeric,[--enable-numeric    Numeric rather than character timers],