From 9795c5dd6b2a1274e5d47b103fd3ed05a6c55fe3 Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Wed, 3 Apr 2002 21:21:29 +0000
Subject: [PATCH] Added src-libs subdirectory for keeping source code to extra
 libs.  These are things that are needed, but that many systems already have
 packages available to install, and many users may have versions of these
 already installed to support other projects.  So rather than build and
 install by default with the main SimGear build/install, these are kept
 separate so that those users that don't have them already installed can build
 and install them separately.

---
 Makefile.am  |  6 ++----
 configure.in | 15 +++++++++++++++
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 686b138b..ebf19625 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,11 +5,9 @@ EXTRA_DIST = \
 	README.metakit \
 	README.zlib \
 	SimGear.dsp \
-	SimGear.dsw \
-	metakit-2.4.2-32.tar.gz \
-	zlib-1.1.4.tar.gz
+	SimGear.dsw
 
-SUBDIRS	= simgear
+SUBDIRS	= src-libs simgear
 
 #
 # Rule to build RPM distribution package
diff --git a/configure.in b/configure.in
index 286f2133..94e04ef7 100644
--- a/configure.in
+++ b/configure.in
@@ -292,6 +292,7 @@ fi
 dnl Check for system installed metakit
 AC_CHECK_HEADER(mk4.h)
 if test "x$ac_cv_header_mk4_h" != "xyes"; then
+    echo 
     echo "Metakit not found, you will need to install this first."
     echo "Please read the README.metakit for more information."
     exit
@@ -303,11 +304,24 @@ dnl Specify if we want logging (testing build) or not (release build)
 dnl Check for system installed zlib
 AC_CHECK_HEADER(zlib.h)
 if test "x$ac_cv_header_zlib_h" != "xyes"; then
+    echo 
     echo "zlib not found, you will need to install this first."
     echo "Please read the README.zlib for more information."
     exit
 fi
 
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+dnl Check for installed boost headers
+AC_CHECK_HEADER(boost/config.hpp)
+if test "x$ac_cv_header_boost_config_hpp" != "xyes"; then
+    echo 
+    echo "Boost not found, you will need to install this first."
+    echo "Please read the README.boost for more information."
+    exit
+fi
+AC_LANG_RESTORE
+
 dnl Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS( \
@@ -335,6 +349,7 @@ AM_CONFIG_HEADER(simgear/simgear_config.h)
 AC_OUTPUT( \
 	Makefile \
 	SimGear.spec \
+	src-libs/Makefile \
 	simgear/Makefile \
 	simgear/version.h \
 	simgear/bucket/Makefile \