Implement the jemalloc-config script.

This resolves #133.

.gitignore

@@ -1,5 +1,6 @@
 /*.gcov.*
 
+/bin/jemalloc-config
 /bin/jemalloc.sh
 
 /config.stamp

Makefile.in

@@ -73,7 +73,7 @@ endif
 LIBJEMALLOC := $(LIBPREFIX)jemalloc$(install_suffix)
 
 # Lists of files.
-BINS := $(srcroot)bin/pprof $(objroot)bin/jemalloc.sh
+BINS := $(srcroot)bin/pprof $(objroot)bin/jemalloc-config $(objroot)bin/jemalloc.sh
 C_HDRS := $(objroot)include/jemalloc/jemalloc$(install_suffix).h
 C_SRCS := $(srcroot)src/jemalloc.c $(srcroot)src/arena.c \
 	$(srcroot)src/atomic.c $(srcroot)src/base.c $(srcroot)src/bitmap.c \
@@ -408,6 +408,7 @@ clean:
 	rm -f $(objroot)*.gcov.*
 
 distclean: clean
+	rm -f $(objroot)bin/jemalloc-config
 	rm -f $(objroot)bin/jemalloc.sh
 	rm -f $(objroot)config.log
 	rm -f $(objroot)config.status

bin/jemalloc-config.in

@@ -0,0 +1,79 @@
+#!/bin/sh
+
+usage() {
+	cat <<EOF
+Usage:
+  @BINDIR@/jemalloc-config <option>
+Options:
+  --help | -h  : Print usage.
+  --version    : Print jemalloc version.
+  --revision   : Print shared library revision number.
+  --config     : Print configure options used to build jemalloc.
+  --prefix     : Print installation directory prefix.
+  --bindir     : Print binary installation directory.
+  --datadir    : Print data installation directory.
+  --includedir : Print include installation directory.
+  --libdir     : Print library installation directory.
+  --mandir     : Print manual page installation directory.
+  --cc         : Print compiler used to build jemalloc.
+  --cflags     : Print compiler flags used to build jemalloc.
+  --cppflags   : Print preprocessor flags used to build jemalloc.
+  --ldflags    : Print library flags used to build jemalloc.
+  --libs       : Print libraries jemalloc was linked against.
+EOF
+}
+
+prefix="@prefix@"
+exec_prefix="@exec_prefix@"
+
+case "$1" in
+--help | -h)
+	usage
+	exit 0
+	;;
+--version)
+	echo "@jemalloc_version@"
+	;;
+--revision)
+	echo "@rev@"
+	;;
+--config)
+	echo "@CONFIG@"
+	;;
+--prefix)
+	echo "@PREFIX@"
+	;;
+--bindir)
+	echo "@BINDIR@"
+	;;
+--datadir)
+	echo "@DATADIR@"
+	;;
+--includedir)
+	echo "@INCLUDEDIR@"
+	;;
+--libdir)
+	echo "@LIBDIR@"
+	;;
+--mandir)
+	echo "@MANDIR@"
+	;;
+--cc)
+	echo "@CC@"
+	;;
+--cflags)
+	echo "@CFLAGS@"
+	;;
+--cppflags)
+	echo "@CPPFLAGS@"
+	;;
+--ldflags)
+	echo "@LDFLAGS@ @EXTRA_LDFLAGS@"
+	;;
+--libs)
+	echo "@LIBS@"
+	;;
+*)
+	usage
+	exit 1
+esac

configure.ac

@@ -43,6 +43,9 @@ AC_CACHE_CHECK([whether $1 is compilable],
 
 dnl ============================================================================
 
+CONFIG=`echo ${ac_configure_args} | sed -e "s#\'\([^ ]*\)\'#\1#g"`
+AC_SUBST([CONFIG])
+
 dnl Library revision.
 rev=2
 AC_SUBST([rev])
@@ -1585,7 +1588,7 @@ AC_CONFIG_HEADERS([$cfghdrs_tup])
 dnl ============================================================================
 dnl Generate outputs.
 
-AC_CONFIG_FILES([$cfgoutputs_tup config.stamp bin/jemalloc.sh])
+AC_CONFIG_FILES([$cfgoutputs_tup config.stamp bin/jemalloc-config bin/jemalloc.sh])
 AC_SUBST([cfgoutputs_in])
 AC_SUBST([cfgoutputs_out])
 AC_OUTPUT
@@ -1596,9 +1599,10 @@ AC_MSG_RESULT([=================================================================
 AC_MSG_RESULT([jemalloc version   : ${jemalloc_version}])
 AC_MSG_RESULT([library revision   : ${rev}])
 AC_MSG_RESULT([])
+AC_MSG_RESULT([CONFIG             : ${CONFIG}])
 AC_MSG_RESULT([CC                 : ${CC}])
-AC_MSG_RESULT([CPPFLAGS           : ${CPPFLAGS}])
 AC_MSG_RESULT([CFLAGS             : ${CFLAGS}])
+AC_MSG_RESULT([CPPFLAGS           : ${CPPFLAGS}])
 AC_MSG_RESULT([LDFLAGS            : ${LDFLAGS}])
 AC_MSG_RESULT([EXTRA_LDFLAGS      : ${EXTRA_LDFLAGS}])
 AC_MSG_RESULT([LIBS               : ${LIBS}])
@@ -1609,9 +1613,9 @@ AC_MSG_RESULT([XSLROOT            : ${XSLROOT}])
 AC_MSG_RESULT([])
 AC_MSG_RESULT([PREFIX             : ${PREFIX}])
 AC_MSG_RESULT([BINDIR             : ${BINDIR}])
+AC_MSG_RESULT([DATADIR            : ${DATADIR}])
 AC_MSG_RESULT([INCLUDEDIR         : ${INCLUDEDIR}])
 AC_MSG_RESULT([LIBDIR             : ${LIBDIR}])
-AC_MSG_RESULT([DATADIR            : ${DATADIR}])
 AC_MSG_RESULT([MANDIR             : ${MANDIR}])
 AC_MSG_RESULT([])
 AC_MSG_RESULT([srcroot            : ${srcroot}])