Initial commit.

git-svn-id: file:///home/svnrepos/software/liblbfgs/trunk@2 ecf4c44f-38d1-4fa4-9757-a0b4dd0349fc

configure.in

@@ -0,0 +1,93 @@
+dnl $Id:$
+dnl
+dnl
+dnl Exported and configured variables:
+dnl CFLAGS
+dnl LDFLAGS
+dnl INCLUDES
+
+
+dnl ------------------------------------------------------------------
+dnl Initialization for autoconf
+dnl ------------------------------------------------------------------
+AC_PREREQ(2.59)
+AC_INIT
+AC_CONFIG_SRCDIR([lib/lbfgs.c])
+
+
+dnl ------------------------------------------------------------------
+dnl Initialization for automake
+dnl ------------------------------------------------------------------
+AM_INIT_AUTOMAKE(liblbfgs, 1.4)
+AC_CONFIG_HEADERS(config.h)
+AM_MAINTAINER_MODE
+
+
+dnl ------------------------------------------------------------------
+dnl Checks for program
+dnl ------------------------------------------------------------------
+AC_PROG_LIBTOOL
+AC_PROG_INSTALL
+AC_PROG_LN_S
+AC_PROG_MAKE_SET
+
+
+dnl ------------------------------------------------------------------
+dnl Initialization for variables
+dnl ------------------------------------------------------------------
+CFLAGS="${ac_save_CFLAGS}"
+LDFLAGS="${ac_save_LDFLAGS}"
+INCLUDES="-I\$(top_srcdir) -I\$(top_srcdir)/include"
+
+
+dnl ------------------------------------------------------------------
+dnl Checks for header files.
+dnl ------------------------------------------------------------------
+AC_HEADER_STDC
+AC_CHECK_HEADERS(fcntl.h limits.h malloc.h strings.h unistd.h stdint.h)
+
+
+dnl ------------------------------------------------------------------
+dnl Checks for debugging mode
+dnl ------------------------------------------------------------------
+AC_ARG_ENABLE(
+  debug,
+  [AS_HELP_STRING([--enable-debug],[Turn on debugging])]
+)
+
+if test "x$enable_debug" = "xyes"; then
+   CFLAGS="-DDEBUG -O -g ${CFLAGS}"
+else
+   CFLAGS="-O3 -ffast-math ${CFLAGS}"
+fi
+
+dnl ------------------------------------------------------------------
+dnl Checks for profiling mode
+dnl ------------------------------------------------------------------
+AC_ARG_ENABLE(
+  profile,
+  [AS_HELP_STRING([--enable-profile],[Turn on profiling])]
+)
+
+if test "x$enable_profile" = "xyes"; then
+   CFLAGS="-DPROFILE -pg ${CFLAGS}"
+fi
+
+
+dnl ------------------------------------------------------------------
+dnl Checks for library functions.
+dnl ------------------------------------------------------------------
+AC_CHECK_LIB(m, fabs)
+
+dnl ------------------------------------------------------------------
+dnl Export variables
+dnl ------------------------------------------------------------------
+AC_SUBST(CFLAGS)
+AC_SUBST(LDFLAGS)
+AC_SUBST(INCLUDES)
+
+dnl ------------------------------------------------------------------
+dnl Output the configure results.
+dnl ------------------------------------------------------------------
+AC_CONFIG_FILES(Makefile)
+AC_OUTPUT